./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/dekker.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b 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_adfe83a6-a62d-4711-8130-a8e18df48623/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe83a6-a62d-4711-8130-a8e18df48623/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe83a6-a62d-4711-8130-a8e18df48623/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe83a6-a62d-4711-8130-a8e18df48623/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/dekker.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe83a6-a62d-4711-8130-a8e18df48623/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe83a6-a62d-4711-8130-a8e18df48623/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 1b6ef65da122b5f043dc58aac5c98a5417eca7613b00ec724ef2626b8a50d79f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:06:27,933 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:06:28,058 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe83a6-a62d-4711-8130-a8e18df48623/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 23:06:28,070 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:06:28,071 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:06:28,109 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:06:28,111 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:06:28,112 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:06:28,113 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:06:28,118 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:06:28,119 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:06:28,119 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:06:28,120 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:06:28,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:06:28,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:06:28,123 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:06:28,123 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:06:28,123 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:06:28,124 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:06:28,124 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:06:28,125 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:06:28,125 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:06:28,126 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 23:06:28,126 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:06:28,126 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:06:28,127 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:06:28,127 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:06:28,128 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:06:28,129 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:06:28,129 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:06:28,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:06:28,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:06:28,131 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:06:28,131 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:06:28,132 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:06:28,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:06:28,132 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:06:28,132 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:06:28,133 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:06:28,133 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:06:28,133 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:06:28,134 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_adfe83a6-a62d-4711-8130-a8e18df48623/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe83a6-a62d-4711-8130-a8e18df48623/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b6ef65da122b5f043dc58aac5c98a5417eca7613b00ec724ef2626b8a50d79f [2023-11-06 23:06:28,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:06:28,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:06:28,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:06:28,466 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:06:28,466 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:06:28,468 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe83a6-a62d-4711-8130-a8e18df48623/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-atomic/dekker.i [2023-11-06 23:06:31,635 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:06:31,953 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:06:31,957 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe83a6-a62d-4711-8130-a8e18df48623/sv-benchmarks/c/pthread-atomic/dekker.i [2023-11-06 23:06:31,974 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe83a6-a62d-4711-8130-a8e18df48623/bin/uautomizer-verify-WvqO1wxjHP/data/463579c7f/32b16cb694fa4a5a925afb2f51afe6b8/FLAG55276ec0e [2023-11-06 23:06:31,997 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe83a6-a62d-4711-8130-a8e18df48623/bin/uautomizer-verify-WvqO1wxjHP/data/463579c7f/32b16cb694fa4a5a925afb2f51afe6b8 [2023-11-06 23:06:32,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:06:32,001 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:06:32,003 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:06:32,003 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:06:32,009 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:06:32,010 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:06:31" (1/1) ... [2023-11-06 23:06:32,011 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33cb8a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:32, skipping insertion in model container [2023-11-06 23:06:32,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:06:31" (1/1) ... [2023-11-06 23:06:32,069 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:06:32,305 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 23:06:32,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:06:32,643 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:06:32,674 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 23:06:32,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:06:32,788 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:06:32,789 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:06:32,789 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:06:32,798 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:06:32,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:32 WrapperNode [2023-11-06 23:06:32,799 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:06:32,800 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:06:32,800 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:06:32,801 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:06:32,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:32" (1/1) ... [2023-11-06 23:06:32,824 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:32" (1/1) ... [2023-11-06 23:06:32,865 INFO L138 Inliner]: procedures = 172, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 236 [2023-11-06 23:06:32,866 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:06:32,867 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:06:32,867 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:06:32,867 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:06:32,877 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:32" (1/1) ... [2023-11-06 23:06:32,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:32" (1/1) ... [2023-11-06 23:06:32,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:32" (1/1) ... [2023-11-06 23:06:32,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:32" (1/1) ... [2023-11-06 23:06:32,895 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:32" (1/1) ... [2023-11-06 23:06:32,900 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:32" (1/1) ... [2023-11-06 23:06:32,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:32" (1/1) ... [2023-11-06 23:06:32,905 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:32" (1/1) ... [2023-11-06 23:06:32,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:06:32,910 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:06:32,911 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:06:32,911 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:06:32,912 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:32" (1/1) ... [2023-11-06 23:06:32,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:06:32,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe83a6-a62d-4711-8130-a8e18df48623/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:06:32,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe83a6-a62d-4711-8130-a8e18df48623/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:06:32,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe83a6-a62d-4711-8130-a8e18df48623/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:06:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:06:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-11-06 23:06:32,997 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-11-06 23:06:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-06 23:06:32,997 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-06 23:06:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:06:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 23:06:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:06:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:06:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:06:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:06:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 23:06:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:06:32,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:06:33,001 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 23:06:33,160 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:06:33,162 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:06:33,622 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:06:33,711 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:06:33,711 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 23:06:33,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:06:33 BoogieIcfgContainer [2023-11-06 23:06:33,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:06:33,718 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:06:33,718 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:06:33,722 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:06:33,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:06:31" (1/3) ... [2023-11-06 23:06:33,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b544d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:06:33, skipping insertion in model container [2023-11-06 23:06:33,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:32" (2/3) ... [2023-11-06 23:06:33,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b544d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:06:33, skipping insertion in model container [2023-11-06 23:06:33,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:06:33" (3/3) ... [2023-11-06 23:06:33,726 INFO L112 eAbstractionObserver]: Analyzing ICFG dekker.i [2023-11-06 23:06:33,735 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 23:06:33,747 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:06:33,747 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-06 23:06:33,748 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 23:06:33,823 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 23:06:33,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 171 transitions, 356 flow [2023-11-06 23:06:33,957 INFO L124 PetriNetUnfolderBase]: 16/169 cut-off events. [2023-11-06 23:06:33,960 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 23:06:33,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 169 events. 16/169 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 397 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 117. Up to 2 conditions per place. [2023-11-06 23:06:33,972 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 171 transitions, 356 flow [2023-11-06 23:06:33,979 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 159 transitions, 327 flow [2023-11-06 23:06:33,984 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:06:33,996 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 159 transitions, 327 flow [2023-11-06 23:06:33,999 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 159 transitions, 327 flow [2023-11-06 23:06:34,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 159 transitions, 327 flow [2023-11-06 23:06:34,081 INFO L124 PetriNetUnfolderBase]: 16/159 cut-off events. [2023-11-06 23:06:34,081 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 23:06:34,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 159 events. 16/159 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 397 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 117. Up to 2 conditions per place. [2023-11-06 23:06:34,097 INFO L119 LiptonReduction]: Number of co-enabled transitions 8036 [2023-11-06 23:06:38,715 INFO L134 LiptonReduction]: Checked pairs total: 24427 [2023-11-06 23:06:38,716 INFO L136 LiptonReduction]: Total number of compositions: 142 [2023-11-06 23:06:38,737 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:06:38,746 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=LoopsAndPotentialCycles, 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;@6a57eaf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:06:38,759 INFO L358 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2023-11-06 23:06:38,761 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 23:06:38,762 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 23:06:38,762 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:06:38,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:06:38,763 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 23:06:38,764 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-06 23:06:38,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:06:38,770 INFO L85 PathProgramCache]: Analyzing trace with hash 817, now seen corresponding path program 1 times [2023-11-06 23:06:38,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:06:38,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52408832] [2023-11-06 23:06:38,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:06:38,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:06:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:06:38,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:06:38,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:06:38,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52408832] [2023-11-06 23:06:38,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52408832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:06:38,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:06:38,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 23:06:38,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072409641] [2023-11-06 23:06:38,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:06:38,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 23:06:38,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:06:38,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 23:06:38,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:06:39,001 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 313 [2023-11-06 23:06:39,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 71 transitions, 151 flow. Second operand has 2 states, 2 states have (on average 118.5) internal successors, (237), 2 states have internal predecessors, (237), 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) [2023-11-06 23:06:39,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:06:39,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 313 [2023-11-06 23:06:39,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:06:39,298 INFO L124 PetriNetUnfolderBase]: 672/1181 cut-off events. [2023-11-06 23:06:39,299 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2023-11-06 23:06:39,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2289 conditions, 1181 events. 672/1181 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5371 event pairs, 504 based on Foata normal form. 28/977 useless extension candidates. Maximal degree in co-relation 2154. Up to 1064 conditions per place. [2023-11-06 23:06:39,313 INFO L140 encePairwiseOnDemand]: 287/313 looper letters, 37 selfloop transitions, 0 changer transitions 0/45 dead transitions. [2023-11-06 23:06:39,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 45 transitions, 173 flow [2023-11-06 23:06:39,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 23:06:39,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 23:06:39,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 299 transitions. [2023-11-06 23:06:39,332 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4776357827476038 [2023-11-06 23:06:39,333 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 299 transitions. [2023-11-06 23:06:39,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 299 transitions. [2023-11-06 23:06:39,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:06:39,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 299 transitions. [2023-11-06 23:06:39,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 149.5) internal successors, (299), 2 states have internal predecessors, (299), 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) [2023-11-06 23:06:39,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 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) [2023-11-06 23:06:39,350 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 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) [2023-11-06 23:06:39,352 INFO L175 Difference]: Start difference. First operand has 70 places, 71 transitions, 151 flow. Second operand 2 states and 299 transitions. [2023-11-06 23:06:39,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 45 transitions, 173 flow [2023-11-06 23:06:39,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 45 transitions, 168 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 23:06:39,362 INFO L231 Difference]: Finished difference. Result has 44 places, 45 transitions, 94 flow [2023-11-06 23:06:39,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=94, PETRI_PLACES=44, PETRI_TRANSITIONS=45} [2023-11-06 23:06:39,375 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -26 predicate places. [2023-11-06 23:06:39,376 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 45 transitions, 94 flow [2023-11-06 23:06:39,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 118.5) internal successors, (237), 2 states have internal predecessors, (237), 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) [2023-11-06 23:06:39,377 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:06:39,377 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:06:39,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:06:39,378 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-06 23:06:39,379 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:06:39,379 INFO L85 PathProgramCache]: Analyzing trace with hash 668204797, now seen corresponding path program 1 times [2023-11-06 23:06:39,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:06:39,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954549695] [2023-11-06 23:06:39,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:06:39,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:06:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:06:39,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:06:39,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:06:39,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954549695] [2023-11-06 23:06:39,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954549695] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:06:39,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:06:39,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:06:39,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851430546] [2023-11-06 23:06:39,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:06:39,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:06:39,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:06:39,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:06:39,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:06:39,606 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 313 [2023-11-06 23:06:39,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 45 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2023-11-06 23:06:39,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:06:39,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 313 [2023-11-06 23:06:39,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:06:39,871 INFO L124 PetriNetUnfolderBase]: 743/1306 cut-off events. [2023-11-06 23:06:39,871 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 23:06:39,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2520 conditions, 1306 events. 743/1306 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 6109 event pairs, 520 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 2517. Up to 1114 conditions per place. [2023-11-06 23:06:39,883 INFO L140 encePairwiseOnDemand]: 308/313 looper letters, 54 selfloop transitions, 4 changer transitions 0/64 dead transitions. [2023-11-06 23:06:39,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 64 transitions, 250 flow [2023-11-06 23:06:39,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:06:39,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:06:39,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2023-11-06 23:06:39,888 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4142705005324814 [2023-11-06 23:06:39,888 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 389 transitions. [2023-11-06 23:06:39,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 389 transitions. [2023-11-06 23:06:39,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:06:39,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 389 transitions. [2023-11-06 23:06:39,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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) [2023-11-06 23:06:39,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 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) [2023-11-06 23:06:39,897 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 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) [2023-11-06 23:06:39,897 INFO L175 Difference]: Start difference. First operand has 44 places, 45 transitions, 94 flow. Second operand 3 states and 389 transitions. [2023-11-06 23:06:39,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 64 transitions, 250 flow [2023-11-06 23:06:39,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 64 transitions, 250 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:06:39,901 INFO L231 Difference]: Finished difference. Result has 47 places, 48 transitions, 120 flow [2023-11-06 23:06:39,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=47, PETRI_TRANSITIONS=48} [2023-11-06 23:06:39,902 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -23 predicate places. [2023-11-06 23:06:39,903 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 48 transitions, 120 flow [2023-11-06 23:06:39,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2023-11-06 23:06:39,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:06:39,904 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:06:39,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:06:39,904 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err9ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-06 23:06:39,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:06:39,905 INFO L85 PathProgramCache]: Analyzing trace with hash -2100189332, now seen corresponding path program 1 times [2023-11-06 23:06:39,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:06:39,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954565686] [2023-11-06 23:06:39,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:06:39,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:06:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:06:39,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:06:39,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:06:39,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954565686] [2023-11-06 23:06:39,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954565686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:06:39,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:06:39,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:06:39,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868928257] [2023-11-06 23:06:39,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:06:39,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:06:39,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:06:39,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:06:39,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:06:40,015 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 313 [2023-11-06 23:06:40,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 48 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2023-11-06 23:06:40,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:06:40,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 313 [2023-11-06 23:06:40,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:06:40,312 INFO L124 PetriNetUnfolderBase]: 884/1501 cut-off events. [2023-11-06 23:06:40,312 INFO L125 PetriNetUnfolderBase]: For 174/184 co-relation queries the response was YES. [2023-11-06 23:06:40,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3182 conditions, 1501 events. 884/1501 cut-off events. For 174/184 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 6740 event pairs, 320 based on Foata normal form. 0/1277 useless extension candidates. Maximal degree in co-relation 3177. Up to 780 conditions per place. [2023-11-06 23:06:40,323 INFO L140 encePairwiseOnDemand]: 305/313 looper letters, 70 selfloop transitions, 6 changer transitions 8/87 dead transitions. [2023-11-06 23:06:40,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 87 transitions, 381 flow [2023-11-06 23:06:40,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:06:40,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:06:40,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 412 transitions. [2023-11-06 23:06:40,326 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4387646432374867 [2023-11-06 23:06:40,326 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 412 transitions. [2023-11-06 23:06:40,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 412 transitions. [2023-11-06 23:06:40,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:06:40,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 412 transitions. [2023-11-06 23:06:40,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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) [2023-11-06 23:06:40,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 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) [2023-11-06 23:06:40,335 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 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) [2023-11-06 23:06:40,335 INFO L175 Difference]: Start difference. First operand has 47 places, 48 transitions, 120 flow. Second operand 3 states and 412 transitions. [2023-11-06 23:06:40,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 87 transitions, 381 flow [2023-11-06 23:06:40,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 87 transitions, 375 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:06:40,342 INFO L231 Difference]: Finished difference. Result has 50 places, 51 transitions, 162 flow [2023-11-06 23:06:40,343 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=50, PETRI_TRANSITIONS=51} [2023-11-06 23:06:40,344 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -20 predicate places. [2023-11-06 23:06:40,345 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 51 transitions, 162 flow [2023-11-06 23:06:40,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2023-11-06 23:06:40,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:06:40,346 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:06:40,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 23:06:40,353 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err8ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-06 23:06:40,354 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:06:40,354 INFO L85 PathProgramCache]: Analyzing trace with hash 609228407, now seen corresponding path program 1 times [2023-11-06 23:06:40,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:06:40,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133510325] [2023-11-06 23:06:40,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:06:40,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:06:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:06:40,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:06:40,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:06:40,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133510325] [2023-11-06 23:06:40,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133510325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:06:40,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:06:40,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:06:40,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605650415] [2023-11-06 23:06:40,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:06:40,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:06:40,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:06:40,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:06:40,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:06:40,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 313 [2023-11-06 23:06:40,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 51 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2023-11-06 23:06:40,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:06:40,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 313 [2023-11-06 23:06:40,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:06:40,746 INFO L124 PetriNetUnfolderBase]: 863/1486 cut-off events. [2023-11-06 23:06:40,746 INFO L125 PetriNetUnfolderBase]: For 435/447 co-relation queries the response was YES. [2023-11-06 23:06:40,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3411 conditions, 1486 events. 863/1486 cut-off events. For 435/447 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 6795 event pairs, 553 based on Foata normal form. 0/1288 useless extension candidates. Maximal degree in co-relation 3405. Up to 1217 conditions per place. [2023-11-06 23:06:40,757 INFO L140 encePairwiseOnDemand]: 307/313 looper letters, 52 selfloop transitions, 8 changer transitions 8/74 dead transitions. [2023-11-06 23:06:40,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 74 transitions, 369 flow [2023-11-06 23:06:40,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:06:40,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:06:40,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2023-11-06 23:06:40,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4174653887113951 [2023-11-06 23:06:40,760 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 392 transitions. [2023-11-06 23:06:40,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 392 transitions. [2023-11-06 23:06:40,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:06:40,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 392 transitions. [2023-11-06 23:06:40,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 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) [2023-11-06 23:06:40,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 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) [2023-11-06 23:06:40,767 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 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) [2023-11-06 23:06:40,767 INFO L175 Difference]: Start difference. First operand has 50 places, 51 transitions, 162 flow. Second operand 3 states and 392 transitions. [2023-11-06 23:06:40,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 74 transitions, 369 flow [2023-11-06 23:06:40,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 74 transitions, 351 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 23:06:40,777 INFO L231 Difference]: Finished difference. Result has 52 places, 55 transitions, 210 flow [2023-11-06 23:06:40,777 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=52, PETRI_TRANSITIONS=55} [2023-11-06 23:06:40,779 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -18 predicate places. [2023-11-06 23:06:40,780 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 55 transitions, 210 flow [2023-11-06 23:06:40,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2023-11-06 23:06:40,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:06:40,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:06:40,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 23:06:40,781 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-06 23:06:40,782 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:06:40,782 INFO L85 PathProgramCache]: Analyzing trace with hash 2024947647, now seen corresponding path program 1 times [2023-11-06 23:06:40,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:06:40,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063315624] [2023-11-06 23:06:40,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:06:40,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:06:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:06:40,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:06:40,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:06:40,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063315624] [2023-11-06 23:06:40,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063315624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:06:40,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:06:40,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:06:40,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40188893] [2023-11-06 23:06:40,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:06:40,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:06:40,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:06:40,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:06:40,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:06:40,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 313 [2023-11-06 23:06:40,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 55 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2023-11-06 23:06:40,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:06:40,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 313 [2023-11-06 23:06:40,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:06:41,266 INFO L124 PetriNetUnfolderBase]: 1006/1721 cut-off events. [2023-11-06 23:06:41,267 INFO L125 PetriNetUnfolderBase]: For 783/809 co-relation queries the response was YES. [2023-11-06 23:06:41,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3992 conditions, 1721 events. 1006/1721 cut-off events. For 783/809 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 8778 event pairs, 171 based on Foata normal form. 0/1461 useless extension candidates. Maximal degree in co-relation 3985. Up to 795 conditions per place. [2023-11-06 23:06:41,279 INFO L140 encePairwiseOnDemand]: 306/313 looper letters, 74 selfloop transitions, 9 changer transitions 12/106 dead transitions. [2023-11-06 23:06:41,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 106 transitions, 537 flow [2023-11-06 23:06:41,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:06:41,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 23:06:41,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 669 transitions. [2023-11-06 23:06:41,283 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42747603833865816 [2023-11-06 23:06:41,283 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 669 transitions. [2023-11-06 23:06:41,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 669 transitions. [2023-11-06 23:06:41,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:06:41,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 669 transitions. [2023-11-06 23:06:41,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 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) [2023-11-06 23:06:41,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 313.0) internal successors, (1878), 6 states have internal predecessors, (1878), 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) [2023-11-06 23:06:41,294 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 313.0) internal successors, (1878), 6 states have internal predecessors, (1878), 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) [2023-11-06 23:06:41,294 INFO L175 Difference]: Start difference. First operand has 52 places, 55 transitions, 210 flow. Second operand 5 states and 669 transitions. [2023-11-06 23:06:41,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 106 transitions, 537 flow [2023-11-06 23:06:41,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 106 transitions, 515 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 23:06:41,302 INFO L231 Difference]: Finished difference. Result has 57 places, 60 transitions, 245 flow [2023-11-06 23:06:41,302 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=245, PETRI_PLACES=57, PETRI_TRANSITIONS=60} [2023-11-06 23:06:41,306 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -13 predicate places. [2023-11-06 23:06:41,306 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 60 transitions, 245 flow [2023-11-06 23:06:41,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2023-11-06 23:06:41,307 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:06:41,307 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:06:41,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 23:06:41,308 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-06 23:06:41,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:06:41,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1806914889, now seen corresponding path program 2 times [2023-11-06 23:06:41,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:06:41,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311701783] [2023-11-06 23:06:41,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:06:41,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:06:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:06:41,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:06:41,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:06:41,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311701783] [2023-11-06 23:06:41,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311701783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:06:41,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:06:41,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:06:41,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935520044] [2023-11-06 23:06:41,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:06:41,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:06:41,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:06:41,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:06:41,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:06:41,460 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 313 [2023-11-06 23:06:41,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 60 transitions, 245 flow. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2023-11-06 23:06:41,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:06:41,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 313 [2023-11-06 23:06:41,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:06:41,840 INFO L124 PetriNetUnfolderBase]: 1061/1686 cut-off events. [2023-11-06 23:06:41,841 INFO L125 PetriNetUnfolderBase]: For 818/824 co-relation queries the response was YES. [2023-11-06 23:06:41,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4171 conditions, 1686 events. 1061/1686 cut-off events. For 818/824 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7410 event pairs, 221 based on Foata normal form. 0/1470 useless extension candidates. Maximal degree in co-relation 4161. Up to 591 conditions per place. [2023-11-06 23:06:41,849 INFO L140 encePairwiseOnDemand]: 306/313 looper letters, 0 selfloop transitions, 0 changer transitions 105/105 dead transitions. [2023-11-06 23:06:41,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 105 transitions, 587 flow [2023-11-06 23:06:41,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:06:41,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 23:06:41,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 667 transitions. [2023-11-06 23:06:41,853 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42619808306709267 [2023-11-06 23:06:41,853 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 667 transitions. [2023-11-06 23:06:41,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 667 transitions. [2023-11-06 23:06:41,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:06:41,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 667 transitions. [2023-11-06 23:06:41,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 133.4) internal successors, (667), 5 states have internal predecessors, (667), 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) [2023-11-06 23:06:41,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 313.0) internal successors, (1878), 6 states have internal predecessors, (1878), 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) [2023-11-06 23:06:41,864 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 313.0) internal successors, (1878), 6 states have internal predecessors, (1878), 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) [2023-11-06 23:06:41,865 INFO L175 Difference]: Start difference. First operand has 57 places, 60 transitions, 245 flow. Second operand 5 states and 667 transitions. [2023-11-06 23:06:41,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 105 transitions, 587 flow [2023-11-06 23:06:41,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 105 transitions, 545 flow, removed 11 selfloop flow, removed 4 redundant places. [2023-11-06 23:06:41,876 INFO L231 Difference]: Finished difference. Result has 53 places, 0 transitions, 0 flow [2023-11-06 23:06:41,876 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=53, PETRI_TRANSITIONS=0} [2023-11-06 23:06:41,879 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -17 predicate places. [2023-11-06 23:06:41,879 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 0 transitions, 0 flow [2023-11-06 23:06:41,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2023-11-06 23:06:41,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (53 of 54 remaining) [2023-11-06 23:06:41,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (52 of 54 remaining) [2023-11-06 23:06:41,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONDATA_RACE (51 of 54 remaining) [2023-11-06 23:06:41,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONDATA_RACE (50 of 54 remaining) [2023-11-06 23:06:41,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONDATA_RACE (49 of 54 remaining) [2023-11-06 23:06:41,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONDATA_RACE (48 of 54 remaining) [2023-11-06 23:06:41,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONDATA_RACE (47 of 54 remaining) [2023-11-06 23:06:41,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONDATA_RACE (46 of 54 remaining) [2023-11-06 23:06:41,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONDATA_RACE (45 of 54 remaining) [2023-11-06 23:06:41,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err9ASSERT_VIOLATIONDATA_RACE (44 of 54 remaining) [2023-11-06 23:06:41,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err10ASSERT_VIOLATIONDATA_RACE (43 of 54 remaining) [2023-11-06 23:06:41,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err11ASSERT_VIOLATIONDATA_RACE (42 of 54 remaining) [2023-11-06 23:06:41,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (41 of 54 remaining) [2023-11-06 23:06:41,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (40 of 54 remaining) [2023-11-06 23:06:41,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 54 remaining) [2023-11-06 23:06:41,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (38 of 54 remaining) [2023-11-06 23:06:41,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 54 remaining) [2023-11-06 23:06:41,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (36 of 54 remaining) [2023-11-06 23:06:41,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONDATA_RACE (35 of 54 remaining) [2023-11-06 23:06:41,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (34 of 54 remaining) [2023-11-06 23:06:41,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (33 of 54 remaining) [2023-11-06 23:06:41,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err9ASSERT_VIOLATIONDATA_RACE (32 of 54 remaining) [2023-11-06 23:06:41,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err10ASSERT_VIOLATIONDATA_RACE (31 of 54 remaining) [2023-11-06 23:06:41,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 54 remaining) [2023-11-06 23:06:41,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 54 remaining) [2023-11-06 23:06:41,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 54 remaining) [2023-11-06 23:06:41,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 54 remaining) [2023-11-06 23:06:41,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 54 remaining) [2023-11-06 23:06:41,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 54 remaining) [2023-11-06 23:06:41,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 54 remaining) [2023-11-06 23:06:41,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (23 of 54 remaining) [2023-11-06 23:06:41,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (22 of 54 remaining) [2023-11-06 23:06:41,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONDATA_RACE (21 of 54 remaining) [2023-11-06 23:06:41,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONDATA_RACE (20 of 54 remaining) [2023-11-06 23:06:41,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONDATA_RACE (19 of 54 remaining) [2023-11-06 23:06:41,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONDATA_RACE (18 of 54 remaining) [2023-11-06 23:06:41,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONDATA_RACE (17 of 54 remaining) [2023-11-06 23:06:41,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONDATA_RACE (16 of 54 remaining) [2023-11-06 23:06:41,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONDATA_RACE (15 of 54 remaining) [2023-11-06 23:06:41,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err9ASSERT_VIOLATIONDATA_RACE (14 of 54 remaining) [2023-11-06 23:06:41,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err10ASSERT_VIOLATIONDATA_RACE (13 of 54 remaining) [2023-11-06 23:06:41,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err11ASSERT_VIOLATIONDATA_RACE (12 of 54 remaining) [2023-11-06 23:06:41,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 54 remaining) [2023-11-06 23:06:41,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 54 remaining) [2023-11-06 23:06:41,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 54 remaining) [2023-11-06 23:06:41,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 54 remaining) [2023-11-06 23:06:41,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 54 remaining) [2023-11-06 23:06:41,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (6 of 54 remaining) [2023-11-06 23:06:41,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONDATA_RACE (5 of 54 remaining) [2023-11-06 23:06:41,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 54 remaining) [2023-11-06 23:06:41,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 54 remaining) [2023-11-06 23:06:41,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 54 remaining) [2023-11-06 23:06:41,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 54 remaining) [2023-11-06 23:06:41,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 54 remaining) [2023-11-06 23:06:41,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 23:06:41,908 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2023-11-06 23:06:41,916 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 23:06:41,916 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 23:06:41,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:06:41 BasicIcfg [2023-11-06 23:06:41,925 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 23:06:41,926 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:06:41,926 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:06:41,926 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:06:41,927 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:06:33" (3/4) ... [2023-11-06 23:06:41,930 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 23:06:41,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2023-11-06 23:06:41,935 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2023-11-06 23:06:41,941 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-06 23:06:41,941 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 23:06:41,942 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 23:06:41,942 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 23:06:42,021 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe83a6-a62d-4711-8130-a8e18df48623/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 23:06:42,021 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe83a6-a62d-4711-8130-a8e18df48623/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 23:06:42,022 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:06:42,022 INFO L158 Benchmark]: Toolchain (without parser) took 10021.03ms. Allocated memory was 159.4MB in the beginning and 205.5MB in the end (delta: 46.1MB). Free memory was 109.6MB in the beginning and 120.8MB in the end (delta: -11.2MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2023-11-06 23:06:42,023 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 67.3MB in the end (delta: 184.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:06:42,023 INFO L158 Benchmark]: CACSL2BoogieTranslator took 796.31ms. Allocated memory is still 159.4MB. Free memory was 109.6MB in the beginning and 88.8MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-06 23:06:42,024 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.99ms. Allocated memory is still 159.4MB. Free memory was 88.8MB in the beginning and 86.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:06:42,024 INFO L158 Benchmark]: Boogie Preprocessor took 42.92ms. Allocated memory is still 159.4MB. Free memory was 86.2MB in the beginning and 84.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:06:42,024 INFO L158 Benchmark]: RCFGBuilder took 804.48ms. Allocated memory is still 159.4MB. Free memory was 84.7MB in the beginning and 112.6MB in the end (delta: -27.9MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2023-11-06 23:06:42,025 INFO L158 Benchmark]: TraceAbstraction took 8207.38ms. Allocated memory was 159.4MB in the beginning and 205.5MB in the end (delta: 46.1MB). Free memory was 111.7MB in the beginning and 124.0MB in the end (delta: -12.3MB). Peak memory consumption was 111.2MB. Max. memory is 16.1GB. [2023-11-06 23:06:42,025 INFO L158 Benchmark]: Witness Printer took 95.77ms. Allocated memory is still 205.5MB. Free memory was 124.0MB in the beginning and 120.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 23:06:42,029 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 67.3MB in the end (delta: 184.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 796.31ms. Allocated memory is still 159.4MB. Free memory was 109.6MB in the beginning and 88.8MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.99ms. Allocated memory is still 159.4MB. Free memory was 88.8MB in the beginning and 86.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.92ms. Allocated memory is still 159.4MB. Free memory was 86.2MB in the beginning and 84.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 804.48ms. Allocated memory is still 159.4MB. Free memory was 84.7MB in the beginning and 112.6MB in the end (delta: -27.9MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8207.38ms. Allocated memory was 159.4MB in the beginning and 205.5MB in the end (delta: 46.1MB). Free memory was 111.7MB in the beginning and 124.0MB in the end (delta: -12.3MB). Peak memory consumption was 111.2MB. Max. memory is 16.1GB. * Witness Printer took 95.77ms. Allocated memory is still 205.5MB. Free memory was 124.0MB in the beginning and 120.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.7s, 150 PlacesBefore, 70 PlacesAfterwards, 159 TransitionsBefore, 71 TransitionsAfterwards, 8036 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 74 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 6 ConcurrentYvCompositions, 8 ChoiceCompositions, 142 TotalNumberOfCompositions, 24427 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10704, independent: 10232, independent conditional: 0, independent unconditional: 10232, dependent: 472, dependent conditional: 0, dependent unconditional: 472, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3845, independent: 3755, independent conditional: 0, independent unconditional: 3755, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10704, independent: 6477, independent conditional: 0, independent unconditional: 6477, dependent: 382, dependent conditional: 0, dependent unconditional: 382, unknown: 3845, unknown conditional: 0, unknown unconditional: 3845] , Statistics on independence cache: Total cache size (in pairs): 583, Positive cache size: 537, Positive conditional cache size: 0, Positive unconditional cache size: 537, Negative cache size: 46, Negative conditional cache size: 0, Negative unconditional cache size: 46, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 753]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 757]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 761]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 776]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 764]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 779]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 768]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 772]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 780]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 782]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 785]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 712]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 716]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 738]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 731]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 739]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 741]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 744]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 794]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 795]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 244 locations, 54 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 254 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 196 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 740 IncrementalHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 11 mSDtfsCounter, 740 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=245occurred in iteration=5, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 28 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 23:06:42,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe83a6-a62d-4711-8130-a8e18df48623/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE