./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.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_1fbacfd1-6dc1-4245-902b-ee4a78157e06/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbacfd1-6dc1-4245-902b-ee4a78157e06/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_1fbacfd1-6dc1-4245-902b-ee4a78157e06/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbacfd1-6dc1-4245-902b-ee4a78157e06/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbacfd1-6dc1-4245-902b-ee4a78157e06/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_1fbacfd1-6dc1-4245-902b-ee4a78157e06/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 462fb42b593b74362524fb8209dde3f76380a79de0c48b612eb75bd0eda8df1c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:49:31,491 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:49:31,570 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbacfd1-6dc1-4245-902b-ee4a78157e06/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:49:31,576 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:49:31,577 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:49:31,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:49:31,605 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:49:31,606 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:49:31,607 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:49:31,608 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:49:31,609 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:49:31,609 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:49:31,610 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:49:31,610 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:49:31,611 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:49:31,612 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:49:31,612 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:49:31,613 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:49:31,613 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:49:31,614 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:49:31,614 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:49:31,615 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:49:31,616 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:49:31,616 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:49:31,616 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:49:31,617 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:49:31,617 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:49:31,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:49:31,619 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:49:31,619 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:49:31,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:49:31,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:49:31,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:49:31,622 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:49:31,622 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:49:31,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:49:31,622 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:49:31,623 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:49:31,623 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:49:31,623 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:49:31,624 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:49:31,624 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_1fbacfd1-6dc1-4245-902b-ee4a78157e06/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbacfd1-6dc1-4245-902b-ee4a78157e06/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 462fb42b593b74362524fb8209dde3f76380a79de0c48b612eb75bd0eda8df1c [2023-11-19 07:49:31,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:49:31,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:49:31,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:49:31,933 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:49:31,934 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:49:31,935 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbacfd1-6dc1-4245-902b-ee4a78157e06/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2023-11-19 07:49:35,083 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:49:35,331 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:49:35,335 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbacfd1-6dc1-4245-902b-ee4a78157e06/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2023-11-19 07:49:35,351 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbacfd1-6dc1-4245-902b-ee4a78157e06/bin/uautomizer-verify-uCwYo4JHxu/data/2611b2a7f/77ff1c1c81c94e3dac7e88b3c2d4a32a/FLAG69f4f129f [2023-11-19 07:49:35,377 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbacfd1-6dc1-4245-902b-ee4a78157e06/bin/uautomizer-verify-uCwYo4JHxu/data/2611b2a7f/77ff1c1c81c94e3dac7e88b3c2d4a32a [2023-11-19 07:49:35,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:49:35,386 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:49:35,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:35,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:49:35,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:49:35,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:35,401 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f7a3b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35, skipping insertion in model container [2023-11-19 07:49:35,402 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:35,449 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:49:35,767 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:35,777 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:49:35,836 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:35,847 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:49:35,847 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:49:35,856 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:49:35,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35 WrapperNode [2023-11-19 07:49:35,857 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:35,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:35,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:49:35,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:49:35,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:35,884 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:35,936 INFO L138 Inliner]: procedures = 29, calls = 96, calls flagged for inlining = 22, calls inlined = 28, statements flattened = 514 [2023-11-19 07:49:35,937 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:35,943 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:49:35,957 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:49:35,957 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:49:35,967 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:35,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:35,977 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:35,977 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:36,019 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:36,025 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:36,038 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:36,041 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:36,058 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:49:36,060 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:49:36,061 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:49:36,061 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:49:36,062 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:36,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:49:36,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbacfd1-6dc1-4245-902b-ee4a78157e06/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:36,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbacfd1-6dc1-4245-902b-ee4a78157e06/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:36,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fbacfd1-6dc1-4245-902b-ee4a78157e06/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:49:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:49:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:49:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:49:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:49:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:49:36,146 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:49:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:49:36,146 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:49:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 07:49:36,147 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 07:49:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-19 07:49:36,147 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-19 07:49:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:49:36,150 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-19 07:49:36,150 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-19 07:49:36,150 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-19 07:49:36,150 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-19 07:49:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:49:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:49:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:49:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:49:36,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:49:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:49:36,155 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 07:49:36,362 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:49:36,371 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:49:37,469 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:49:37,968 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:49:37,969 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-19 07:49:37,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:37 BoogieIcfgContainer [2023-11-19 07:49:37,974 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:49:37,976 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:49:37,977 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:49:37,980 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:49:37,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:49:35" (1/3) ... [2023-11-19 07:49:37,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@113cf173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:37, skipping insertion in model container [2023-11-19 07:49:37,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (2/3) ... [2023-11-19 07:49:37,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@113cf173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:37, skipping insertion in model container [2023-11-19 07:49:37,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:37" (3/3) ... [2023-11-19 07:49:37,982 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2023-11-19 07:49:38,003 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:49:38,013 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:49:38,013 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 77 error locations. [2023-11-19 07:49:38,014 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:49:38,270 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-11-19 07:49:38,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 454 places, 453 transitions, 972 flow [2023-11-19 07:49:38,546 INFO L124 PetriNetUnfolderBase]: 18/413 cut-off events. [2023-11-19 07:49:38,547 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:49:38,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 413 events. 18/413 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 796 event pairs, 0 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 346. Up to 3 conditions per place. [2023-11-19 07:49:38,561 INFO L82 GeneralOperation]: Start removeDead. Operand has 454 places, 453 transitions, 972 flow [2023-11-19 07:49:38,578 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 394 places, 392 transitions, 832 flow [2023-11-19 07:49:38,583 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:49:38,602 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 394 places, 392 transitions, 832 flow [2023-11-19 07:49:38,604 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 394 places, 392 transitions, 832 flow [2023-11-19 07:49:38,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 394 places, 392 transitions, 832 flow [2023-11-19 07:49:38,739 INFO L124 PetriNetUnfolderBase]: 17/392 cut-off events. [2023-11-19 07:49:38,740 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:49:38,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 392 events. 17/392 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 795 event pairs, 0 based on Foata normal form. 0/299 useless extension candidates. Maximal degree in co-relation 346. Up to 3 conditions per place. [2023-11-19 07:49:38,766 INFO L119 LiptonReduction]: Number of co-enabled transitions 29776 [2023-11-19 07:49:49,695 INFO L134 LiptonReduction]: Checked pairs total: 204475 [2023-11-19 07:49:49,695 INFO L136 LiptonReduction]: Total number of compositions: 378 [2023-11-19 07:49:49,714 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:49:49,723 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;@2d0c011c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:49:49,723 INFO L358 AbstractCegarLoop]: Starting to check reachability of 147 error locations. [2023-11-19 07:49:49,725 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:49:49,726 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:49:49,726 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:49:49,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:49:49,727 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:49:49,728 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2023-11-19 07:49:49,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:49,735 INFO L85 PathProgramCache]: Analyzing trace with hash 2355, now seen corresponding path program 1 times [2023-11-19 07:49:49,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:49,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570480355] [2023-11-19 07:49:49,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:49,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:49,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:49,887 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 07:49:49,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:49,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570480355] [2023-11-19 07:49:49,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570480355] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:49,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:49,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:49:49,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703407321] [2023-11-19 07:49:49,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:49,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:49:49,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:49,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:49:49,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:49:49,941 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 835 [2023-11-19 07:49:49,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 175 transitions, 398 flow. Second operand has 2 states, 2 states have (on average 353.5) internal successors, (707), 2 states have internal predecessors, (707), 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 07:49:49,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:49:49,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 835 [2023-11-19 07:49:49,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:49:59,004 INFO L124 PetriNetUnfolderBase]: 23733/42871 cut-off events. [2023-11-19 07:49:59,004 INFO L125 PetriNetUnfolderBase]: For 4143/4143 co-relation queries the response was YES. [2023-11-19 07:49:59,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75769 conditions, 42871 events. 23733/42871 cut-off events. For 4143/4143 co-relation queries the response was YES. Maximal size of possible extension queue 1501. Compared 380427 event pairs, 15215 based on Foata normal form. 95/31385 useless extension candidates. Maximal degree in co-relation 74734. Up to 28742 conditions per place. [2023-11-19 07:49:59,641 INFO L140 encePairwiseOnDemand]: 764/835 looper letters, 45 selfloop transitions, 0 changer transitions 1/104 dead transitions. [2023-11-19 07:49:59,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 104 transitions, 348 flow [2023-11-19 07:49:59,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:49:59,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:49:59,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 823 transitions. [2023-11-19 07:49:59,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.492814371257485 [2023-11-19 07:49:59,672 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 823 transitions. [2023-11-19 07:49:59,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 823 transitions. [2023-11-19 07:49:59,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:49:59,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 823 transitions. [2023-11-19 07:49:59,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 411.5) internal successors, (823), 2 states have internal predecessors, (823), 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 07:49:59,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 835.0) internal successors, (2505), 3 states have internal predecessors, (2505), 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 07:49:59,702 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 835.0) internal successors, (2505), 3 states have internal predecessors, (2505), 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 07:49:59,704 INFO L175 Difference]: Start difference. First operand has 185 places, 175 transitions, 398 flow. Second operand 2 states and 823 transitions. [2023-11-19 07:49:59,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 104 transitions, 348 flow [2023-11-19 07:50:00,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 104 transitions, 316 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-19 07:50:00,047 INFO L231 Difference]: Finished difference. Result has 103 places, 103 transitions, 221 flow [2023-11-19 07:50:00,049 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=835, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=221, PETRI_PLACES=103, PETRI_TRANSITIONS=103} [2023-11-19 07:50:00,055 INFO L281 CegarLoopForPetriNet]: 185 programPoint places, -82 predicate places. [2023-11-19 07:50:00,056 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 103 transitions, 221 flow [2023-11-19 07:50:00,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 353.5) internal successors, (707), 2 states have internal predecessors, (707), 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 07:50:00,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:00,058 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:00,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:50:00,059 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2023-11-19 07:50:00,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:00,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1978558714, now seen corresponding path program 1 times [2023-11-19 07:50:00,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:00,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657272965] [2023-11-19 07:50:00,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:00,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:01,083 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 07:50:01,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:01,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657272965] [2023-11-19 07:50:01,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657272965] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:01,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:01,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:50:01,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907994685] [2023-11-19 07:50:01,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:01,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:50:01,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:01,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:50:01,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:50:01,736 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 835 [2023-11-19 07:50:01,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 103 transitions, 221 flow. Second operand has 6 states, 6 states have (on average 340.8333333333333) internal successors, (2045), 6 states have internal predecessors, (2045), 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 07:50:01,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:01,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 835 [2023-11-19 07:50:01,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:17,864 INFO L124 PetriNetUnfolderBase]: 90640/122241 cut-off events. [2023-11-19 07:50:17,864 INFO L125 PetriNetUnfolderBase]: For 3520/3520 co-relation queries the response was YES. [2023-11-19 07:50:18,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233920 conditions, 122241 events. 90640/122241 cut-off events. For 3520/3520 co-relation queries the response was YES. Maximal size of possible extension queue 3342. Compared 800085 event pairs, 15033 based on Foata normal form. 0/88049 useless extension candidates. Maximal degree in co-relation 233917. Up to 32168 conditions per place. [2023-11-19 07:50:19,115 INFO L140 encePairwiseOnDemand]: 830/835 looper letters, 190 selfloop transitions, 4 changer transitions 0/246 dead transitions. [2023-11-19 07:50:19,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 246 transitions, 943 flow [2023-11-19 07:50:19,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:50:19,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:50:19,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2229 transitions. [2023-11-19 07:50:19,131 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44491017964071855 [2023-11-19 07:50:19,131 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2229 transitions. [2023-11-19 07:50:19,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2229 transitions. [2023-11-19 07:50:19,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:19,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2229 transitions. [2023-11-19 07:50:19,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 371.5) internal successors, (2229), 6 states have internal predecessors, (2229), 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 07:50:19,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 835.0) internal successors, (5845), 7 states have internal predecessors, (5845), 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 07:50:19,174 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 835.0) internal successors, (5845), 7 states have internal predecessors, (5845), 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 07:50:19,174 INFO L175 Difference]: Start difference. First operand has 103 places, 103 transitions, 221 flow. Second operand 6 states and 2229 transitions. [2023-11-19 07:50:19,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 246 transitions, 943 flow [2023-11-19 07:50:19,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 246 transitions, 943 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:50:19,185 INFO L231 Difference]: Finished difference. Result has 106 places, 102 transitions, 227 flow [2023-11-19 07:50:19,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=835, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=227, PETRI_PLACES=106, PETRI_TRANSITIONS=102} [2023-11-19 07:50:19,187 INFO L281 CegarLoopForPetriNet]: 185 programPoint places, -79 predicate places. [2023-11-19 07:50:19,187 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 102 transitions, 227 flow [2023-11-19 07:50:19,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 340.8333333333333) internal successors, (2045), 6 states have internal predecessors, (2045), 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 07:50:19,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:19,190 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 07:50:19,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:50:19,190 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2023-11-19 07:50:19,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:19,196 INFO L85 PathProgramCache]: Analyzing trace with hash -83136652, now seen corresponding path program 1 times [2023-11-19 07:50:19,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:19,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960876197] [2023-11-19 07:50:19,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:19,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:19,685 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 07:50:19,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:19,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960876197] [2023-11-19 07:50:19,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960876197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:19,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:19,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:50:19,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016649837] [2023-11-19 07:50:19,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:19,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:50:19,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:19,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:50:19,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:50:20,202 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 835 [2023-11-19 07:50:20,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 102 transitions, 227 flow. Second operand has 6 states, 6 states have (on average 343.3333333333333) internal successors, (2060), 6 states have internal predecessors, (2060), 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 07:50:20,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:20,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 835 [2023-11-19 07:50:20,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand