./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:56:42,352 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:56:42,406 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-12-02 14:56:42,410 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:56:42,410 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:56:42,429 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:56:42,430 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:56:42,430 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:56:42,430 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:56:42,430 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:56:42,431 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:56:42,431 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:56:42,431 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:56:42,431 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:56:42,431 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:56:42,431 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:56:42,431 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:56:42,432 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:56:42,432 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:56:42,432 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:56:42,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:56:42,432 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:56:42,432 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-12-02 14:56:42,432 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 14:56:42,432 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:56:42,432 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:56:42,432 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:56:42,433 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:56:42,433 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:56:42,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:56:42,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:56:42,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:56:42,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:56:42,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:56:42,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:56:42,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:56:42,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:56:42,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:56:42,434 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:56:42,434 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:56:42,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:56:42,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:56:42,434 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:56:42,434 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:56:42,434 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:56:42,434 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:56:42,435 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e [2024-12-02 14:56:42,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:56:42,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:56:42,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:56:42,654 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:56:42,654 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:56:42,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-12-02 14:56:45,276 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/data/dfa0a92f6/bf5589a300374c6f8dcd879166326645/FLAGf3480d0b9 [2024-12-02 14:56:45,464 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:56:45,465 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-12-02 14:56:45,478 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/data/dfa0a92f6/bf5589a300374c6f8dcd879166326645/FLAGf3480d0b9 [2024-12-02 14:56:45,822 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/data/dfa0a92f6/bf5589a300374c6f8dcd879166326645 [2024-12-02 14:56:45,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:56:45,825 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:56:45,826 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:56:45,826 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:56:45,829 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:56:45,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:56:45" (1/1) ... [2024-12-02 14:56:45,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53f580ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:56:45, skipping insertion in model container [2024-12-02 14:56:45,830 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:56:45" (1/1) ... [2024-12-02 14:56:45,843 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:56:45,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:56:45,999 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:56:46,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:56:46,040 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:56:46,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:56:46 WrapperNode [2024-12-02 14:56:46,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:56:46,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:56:46,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:56:46,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:56:46,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:56:46" (1/1) ... [2024-12-02 14:56:46,054 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:56:46" (1/1) ... [2024-12-02 14:56:46,075 INFO L138 Inliner]: procedures = 25, calls = 30, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 186 [2024-12-02 14:56:46,075 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:56:46,075 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:56:46,076 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:56:46,076 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:56:46,081 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:56:46" (1/1) ... [2024-12-02 14:56:46,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:56:46" (1/1) ... [2024-12-02 14:56:46,086 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:56:46" (1/1) ... [2024-12-02 14:56:46,086 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:56:46" (1/1) ... [2024-12-02 14:56:46,099 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:56:46" (1/1) ... [2024-12-02 14:56:46,101 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:56:46" (1/1) ... [2024-12-02 14:56:46,105 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:56:46" (1/1) ... [2024-12-02 14:56:46,107 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:56:46" (1/1) ... [2024-12-02 14:56:46,108 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:56:46" (1/1) ... [2024-12-02 14:56:46,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:56:46,112 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:56:46,112 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:56:46,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:56:46,113 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:56:46" (1/1) ... [2024-12-02 14:56:46,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:56:46,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:56:46,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:56:46,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:56:46,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:56:46,162 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-02 14:56:46,162 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-02 14:56:46,163 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-02 14:56:46,163 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-02 14:56:46,163 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-02 14:56:46,163 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-02 14:56:46,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 14:56:46,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 14:56:46,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-02 14:56:46,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-02 14:56:46,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 14:56:46,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:56:46,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:56:46,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 14:56:46,165 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 14:56:46,268 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:56:46,270 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:56:46,778 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 14:56:46,778 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:56:46,920 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:56:46,920 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-12-02 14:56:46,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:56:46 BoogieIcfgContainer [2024-12-02 14:56:46,920 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:56:46,923 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:56:46,923 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:56:46,926 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:56:46,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:56:45" (1/3) ... [2024-12-02 14:56:46,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1193a3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:56:46, skipping insertion in model container [2024-12-02 14:56:46,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:56:46" (2/3) ... [2024-12-02 14:56:46,928 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1193a3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:56:46, skipping insertion in model container [2024-12-02 14:56:46,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:56:46" (3/3) ... [2024-12-02 14:56:46,929 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-12-02 14:56:46,940 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:56:46,942 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-three-array-sum.wvr.c that has 4 procedures, 325 locations, 1 initial locations, 6 loop locations, and 36 error locations. [2024-12-02 14:56:46,942 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 14:56:47,016 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-02 14:56:47,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 334 places, 344 transitions, 709 flow [2024-12-02 14:56:47,143 INFO L124 PetriNetUnfolderBase]: 20/341 cut-off events. [2024-12-02 14:56:47,145 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-12-02 14:56:47,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 341 events. 20/341 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 461 event pairs, 0 based on Foata normal form. 0/285 useless extension candidates. Maximal degree in co-relation 291. Up to 2 conditions per place. [2024-12-02 14:56:47,151 INFO L82 GeneralOperation]: Start removeDead. Operand has 334 places, 344 transitions, 709 flow [2024-12-02 14:56:47,157 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 315 places, 324 transitions, 666 flow [2024-12-02 14:56:47,163 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:56:47,173 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@40b30e54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:56:47,173 INFO L334 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2024-12-02 14:56:47,178 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 14:56:47,178 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-12-02 14:56:47,179 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 14:56:47,179 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:56:47,179 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:47,180 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:56:47,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:47,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1514911445, now seen corresponding path program 1 times [2024-12-02 14:56:47,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:47,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399941869] [2024-12-02 14:56:47,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:47,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:47,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:47,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:47,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399941869] [2024-12-02 14:56:47,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399941869] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:47,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:47,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:56:47,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932006909] [2024-12-02 14:56:47,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:47,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:56:47,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:47,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:56:47,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:56:47,406 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 344 [2024-12-02 14:56:47,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 324 transitions, 666 flow. Second operand has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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) [2024-12-02 14:56:47,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:56:47,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 344 [2024-12-02 14:56:47,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:56:47,733 INFO L124 PetriNetUnfolderBase]: 85/884 cut-off events. [2024-12-02 14:56:47,733 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-12-02 14:56:47,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1059 conditions, 884 events. 85/884 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4495 event pairs, 51 based on Foata normal form. 9/749 useless extension candidates. Maximal degree in co-relation 759. Up to 134 conditions per place. [2024-12-02 14:56:47,743 INFO L140 encePairwiseOnDemand]: 317/344 looper letters, 18 selfloop transitions, 2 changer transitions 6/299 dead transitions. [2024-12-02 14:56:47,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 299 transitions, 656 flow [2024-12-02 14:56:47,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:56:47,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 14:56:47,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 933 transitions. [2024-12-02 14:56:47,758 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9040697674418605 [2024-12-02 14:56:47,760 INFO L175 Difference]: Start difference. First operand has 315 places, 324 transitions, 666 flow. Second operand 3 states and 933 transitions. [2024-12-02 14:56:47,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 299 transitions, 656 flow [2024-12-02 14:56:47,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 299 transitions, 644 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-12-02 14:56:47,772 INFO L231 Difference]: Finished difference. Result has 298 places, 293 transitions, 596 flow [2024-12-02 14:56:47,775 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=596, PETRI_PLACES=298, PETRI_TRANSITIONS=293} [2024-12-02 14:56:47,779 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, -17 predicate places. [2024-12-02 14:56:47,779 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 293 transitions, 596 flow [2024-12-02 14:56:47,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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) [2024-12-02 14:56:47,780 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:56:47,780 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:47,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 14:56:47,780 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:56:47,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:47,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1274509642, now seen corresponding path program 1 times [2024-12-02 14:56:47,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:47,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204290664] [2024-12-02 14:56:47,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:47,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:47,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:47,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:47,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204290664] [2024-12-02 14:56:47,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204290664] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:47,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:47,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:56:47,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437386193] [2024-12-02 14:56:47,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:47,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:56:47,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:47,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:56:47,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:56:47,864 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 344 [2024-12-02 14:56:47,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 293 transitions, 596 flow. Second operand has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 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) [2024-12-02 14:56:47,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:56:47,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 344 [2024-12-02 14:56:47,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:56:48,098 INFO L124 PetriNetUnfolderBase]: 213/995 cut-off events. [2024-12-02 14:56:48,098 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-12-02 14:56:48,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1314 conditions, 995 events. 213/995 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5272 event pairs, 128 based on Foata normal form. 0/858 useless extension candidates. Maximal degree in co-relation 1281. Up to 297 conditions per place. [2024-12-02 14:56:48,105 INFO L140 encePairwiseOnDemand]: 337/344 looper letters, 21 selfloop transitions, 1 changer transitions 0/287 dead transitions. [2024-12-02 14:56:48,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 287 transitions, 628 flow [2024-12-02 14:56:48,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:56:48,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 14:56:48,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 898 transitions. [2024-12-02 14:56:48,109 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8701550387596899 [2024-12-02 14:56:48,109 INFO L175 Difference]: Start difference. First operand has 298 places, 293 transitions, 596 flow. Second operand 3 states and 898 transitions. [2024-12-02 14:56:48,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 287 transitions, 628 flow [2024-12-02 14:56:48,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 287 transitions, 624 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 14:56:48,114 INFO L231 Difference]: Finished difference. Result has 286 places, 287 transitions, 582 flow [2024-12-02 14:56:48,115 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=582, PETRI_PLACES=286, PETRI_TRANSITIONS=287} [2024-12-02 14:56:48,115 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, -29 predicate places. [2024-12-02 14:56:48,115 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 287 transitions, 582 flow [2024-12-02 14:56:48,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 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) [2024-12-02 14:56:48,116 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:56:48,116 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:48,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:56:48,116 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:56:48,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:48,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1344509392, now seen corresponding path program 1 times [2024-12-02 14:56:48,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:48,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795767682] [2024-12-02 14:56:48,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:48,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:48,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:48,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:48,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795767682] [2024-12-02 14:56:48,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795767682] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:48,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:48,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:56:48,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546383846] [2024-12-02 14:56:48,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:48,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:56:48,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:48,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:56:48,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:56:48,935 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 344 [2024-12-02 14:56:48,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 287 transitions, 582 flow. Second operand has 6 states, 6 states have (on average 260.5) internal successors, (1563), 6 states have internal predecessors, (1563), 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) [2024-12-02 14:56:48,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:56:48,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 344 [2024-12-02 14:56:48,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:56:49,269 INFO L124 PetriNetUnfolderBase]: 128/873 cut-off events. [2024-12-02 14:56:49,269 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-12-02 14:56:49,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1149 conditions, 873 events. 128/873 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4254 event pairs, 100 based on Foata normal form. 0/759 useless extension candidates. Maximal degree in co-relation 1117. Up to 230 conditions per place. [2024-12-02 14:56:49,277 INFO L140 encePairwiseOnDemand]: 326/344 looper letters, 41 selfloop transitions, 15 changer transitions 0/284 dead transitions. [2024-12-02 14:56:49,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 284 transitions, 688 flow [2024-12-02 14:56:49,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:56:49,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:56:49,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1613 transitions. [2024-12-02 14:56:49,282 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7814922480620154 [2024-12-02 14:56:49,282 INFO L175 Difference]: Start difference. First operand has 286 places, 287 transitions, 582 flow. Second operand 6 states and 1613 transitions. [2024-12-02 14:56:49,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 284 transitions, 688 flow [2024-12-02 14:56:49,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 284 transitions, 687 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 14:56:49,288 INFO L231 Difference]: Finished difference. Result has 287 places, 284 transitions, 605 flow [2024-12-02 14:56:49,288 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=605, PETRI_PLACES=287, PETRI_TRANSITIONS=284} [2024-12-02 14:56:49,289 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, -28 predicate places. [2024-12-02 14:56:49,289 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 284 transitions, 605 flow [2024-12-02 14:56:49,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 260.5) internal successors, (1563), 6 states have internal predecessors, (1563), 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) [2024-12-02 14:56:49,290 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:56:49,291 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:49,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 14:56:49,291 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:56:49,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:49,292 INFO L85 PathProgramCache]: Analyzing trace with hash -482287339, now seen corresponding path program 1 times [2024-12-02 14:56:49,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:49,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482124506] [2024-12-02 14:56:49,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:49,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:49,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:49,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:49,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482124506] [2024-12-02 14:56:49,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482124506] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:49,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:49,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:56:49,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889723395] [2024-12-02 14:56:49,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:49,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:56:49,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:49,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:56:49,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:56:49,353 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 344 [2024-12-02 14:56:49,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 284 transitions, 605 flow. Second operand has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 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) [2024-12-02 14:56:49,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:56:49,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 344 [2024-12-02 14:56:49,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:56:49,463 INFO L124 PetriNetUnfolderBase]: 37/389 cut-off events. [2024-12-02 14:56:49,463 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-12-02 14:56:49,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 389 events. 37/389 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1084 event pairs, 23 based on Foata normal form. 0/362 useless extension candidates. Maximal degree in co-relation 438. Up to 55 conditions per place. [2024-12-02 14:56:49,466 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 13 selfloop transitions, 2 changer transitions 0/283 dead transitions. [2024-12-02 14:56:49,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 283 transitions, 633 flow [2024-12-02 14:56:49,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:56:49,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 14:56:49,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2024-12-02 14:56:49,469 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8905038759689923 [2024-12-02 14:56:49,469 INFO L175 Difference]: Start difference. First operand has 287 places, 284 transitions, 605 flow. Second operand 3 states and 919 transitions. [2024-12-02 14:56:49,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 283 transitions, 633 flow [2024-12-02 14:56:49,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 283 transitions, 603 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 14:56:49,476 INFO L231 Difference]: Finished difference. Result has 283 places, 283 transitions, 577 flow [2024-12-02 14:56:49,476 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=577, PETRI_PLACES=283, PETRI_TRANSITIONS=283} [2024-12-02 14:56:49,477 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, -32 predicate places. [2024-12-02 14:56:49,477 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 283 transitions, 577 flow [2024-12-02 14:56:49,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 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) [2024-12-02 14:56:49,478 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:56:49,478 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:49,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 14:56:49,478 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:56:49,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:49,479 INFO L85 PathProgramCache]: Analyzing trace with hash -187453708, now seen corresponding path program 1 times [2024-12-02 14:56:49,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:49,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122996075] [2024-12-02 14:56:49,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:49,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:49,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:49,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:49,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122996075] [2024-12-02 14:56:49,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122996075] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:49,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:49,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:56:49,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913740133] [2024-12-02 14:56:49,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:49,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:56:49,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:49,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:56:49,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:56:49,552 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 344 [2024-12-02 14:56:49,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 283 transitions, 577 flow. Second operand has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 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) [2024-12-02 14:56:49,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:56:49,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 344 [2024-12-02 14:56:49,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:56:49,709 INFO L124 PetriNetUnfolderBase]: 37/388 cut-off events. [2024-12-02 14:56:49,709 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-12-02 14:56:49,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 388 events. 37/388 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1058 event pairs, 23 based on Foata normal form. 0/357 useless extension candidates. Maximal degree in co-relation 424. Up to 55 conditions per place. [2024-12-02 14:56:49,712 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 13 selfloop transitions, 2 changer transitions 0/282 dead transitions. [2024-12-02 14:56:49,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 282 transitions, 605 flow [2024-12-02 14:56:49,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:56:49,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 14:56:49,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2024-12-02 14:56:49,715 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8905038759689923 [2024-12-02 14:56:49,715 INFO L175 Difference]: Start difference. First operand has 283 places, 283 transitions, 577 flow. Second operand 3 states and 919 transitions. [2024-12-02 14:56:49,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 282 transitions, 605 flow [2024-12-02 14:56:49,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 282 transitions, 601 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 14:56:49,721 INFO L231 Difference]: Finished difference. Result has 282 places, 282 transitions, 575 flow [2024-12-02 14:56:49,721 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=575, PETRI_PLACES=282, PETRI_TRANSITIONS=282} [2024-12-02 14:56:49,722 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, -33 predicate places. [2024-12-02 14:56:49,722 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 282 transitions, 575 flow [2024-12-02 14:56:49,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 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) [2024-12-02 14:56:49,723 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:56:49,723 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:49,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 14:56:49,723 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:56:49,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:49,724 INFO L85 PathProgramCache]: Analyzing trace with hash 479767889, now seen corresponding path program 1 times [2024-12-02 14:56:49,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:49,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067080084] [2024-12-02 14:56:49,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:49,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:49,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:49,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:49,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067080084] [2024-12-02 14:56:49,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067080084] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:49,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:49,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:56:49,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229725211] [2024-12-02 14:56:49,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:49,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:56:49,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:49,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:56:49,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:56:49,812 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-12-02 14:56:49,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 282 transitions, 575 flow. Second operand has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 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) [2024-12-02 14:56:49,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:56:49,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-12-02 14:56:49,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:56:49,905 INFO L124 PetriNetUnfolderBase]: 21/319 cut-off events. [2024-12-02 14:56:49,905 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-12-02 14:56:49,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 319 events. 21/319 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 592 event pairs, 12 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 332. Up to 35 conditions per place. [2024-12-02 14:56:49,907 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 12 selfloop transitions, 2 changer transitions 0/281 dead transitions. [2024-12-02 14:56:49,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 281 transitions, 601 flow [2024-12-02 14:56:49,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:56:49,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 14:56:49,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2024-12-02 14:56:49,910 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8924418604651163 [2024-12-02 14:56:49,910 INFO L175 Difference]: Start difference. First operand has 282 places, 282 transitions, 575 flow. Second operand 3 states and 921 transitions. [2024-12-02 14:56:49,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 281 transitions, 601 flow [2024-12-02 14:56:49,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 281 transitions, 597 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 14:56:49,917 INFO L231 Difference]: Finished difference. Result has 281 places, 281 transitions, 573 flow [2024-12-02 14:56:49,917 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=573, PETRI_PLACES=281, PETRI_TRANSITIONS=281} [2024-12-02 14:56:49,918 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, -34 predicate places. [2024-12-02 14:56:49,918 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 281 transitions, 573 flow [2024-12-02 14:56:49,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 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) [2024-12-02 14:56:49,919 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:56:49,919 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:49,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 14:56:49,919 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:56:49,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:49,920 INFO L85 PathProgramCache]: Analyzing trace with hash 119216684, now seen corresponding path program 1 times [2024-12-02 14:56:49,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:49,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019314873] [2024-12-02 14:56:49,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:49,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:49,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:49,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:49,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019314873] [2024-12-02 14:56:49,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019314873] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:49,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:49,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:56:49,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515102125] [2024-12-02 14:56:49,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:49,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:56:50,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:50,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:56:50,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:56:50,015 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-12-02 14:56:50,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 281 transitions, 573 flow. Second operand has 3 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 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) [2024-12-02 14:56:50,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:56:50,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-12-02 14:56:50,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:56:50,213 INFO L124 PetriNetUnfolderBase]: 70/670 cut-off events. [2024-12-02 14:56:50,214 INFO L125 PetriNetUnfolderBase]: For 12/13 co-relation queries the response was YES. [2024-12-02 14:56:50,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 796 conditions, 670 events. 70/670 cut-off events. For 12/13 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2781 event pairs, 23 based on Foata normal form. 0/600 useless extension candidates. Maximal degree in co-relation 764. Up to 58 conditions per place. [2024-12-02 14:56:50,217 INFO L140 encePairwiseOnDemand]: 339/344 looper letters, 16 selfloop transitions, 3 changer transitions 0/284 dead transitions. [2024-12-02 14:56:50,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 284 transitions, 619 flow [2024-12-02 14:56:50,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:56:50,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 14:56:50,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 927 transitions. [2024-12-02 14:56:50,220 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8982558139534884 [2024-12-02 14:56:50,220 INFO L175 Difference]: Start difference. First operand has 281 places, 281 transitions, 573 flow. Second operand 3 states and 927 transitions. [2024-12-02 14:56:50,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 284 transitions, 619 flow [2024-12-02 14:56:50,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 284 transitions, 615 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 14:56:50,224 INFO L231 Difference]: Finished difference. Result has 279 places, 279 transitions, 571 flow [2024-12-02 14:56:50,224 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=565, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=571, PETRI_PLACES=279, PETRI_TRANSITIONS=279} [2024-12-02 14:56:50,225 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, -36 predicate places. [2024-12-02 14:56:50,225 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 279 transitions, 571 flow [2024-12-02 14:56:50,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 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) [2024-12-02 14:56:50,226 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:56:50,226 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:50,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 14:56:50,226 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:56:50,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:50,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1396853202, now seen corresponding path program 1 times [2024-12-02 14:56:50,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:50,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040395246] [2024-12-02 14:56:50,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:50,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:50,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:50,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:50,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040395246] [2024-12-02 14:56:50,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040395246] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:50,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:50,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:56:50,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426052480] [2024-12-02 14:56:50,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:50,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:56:50,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:50,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:56:50,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:56:50,292 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 344 [2024-12-02 14:56:50,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 279 transitions, 571 flow. Second operand has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 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) [2024-12-02 14:56:50,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:56:50,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 344 [2024-12-02 14:56:50,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:56:50,462 INFO L124 PetriNetUnfolderBase]: 76/765 cut-off events. [2024-12-02 14:56:50,462 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-12-02 14:56:50,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 910 conditions, 765 events. 76/765 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3524 event pairs, 8 based on Foata normal form. 0/692 useless extension candidates. Maximal degree in co-relation 878. Up to 99 conditions per place. [2024-12-02 14:56:50,467 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 19 selfloop transitions, 2 changer transitions 0/287 dead transitions. [2024-12-02 14:56:50,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 287 transitions, 634 flow [2024-12-02 14:56:50,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:56:50,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 14:56:50,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 937 transitions. [2024-12-02 14:56:50,469 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9079457364341085 [2024-12-02 14:56:50,469 INFO L175 Difference]: Start difference. First operand has 279 places, 279 transitions, 571 flow. Second operand 3 states and 937 transitions. [2024-12-02 14:56:50,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 287 transitions, 634 flow [2024-12-02 14:56:50,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 287 transitions, 628 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 14:56:50,476 INFO L231 Difference]: Finished difference. Result has 279 places, 280 transitions, 577 flow [2024-12-02 14:56:50,477 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=577, PETRI_PLACES=279, PETRI_TRANSITIONS=280} [2024-12-02 14:56:50,477 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, -36 predicate places. [2024-12-02 14:56:50,477 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 280 transitions, 577 flow [2024-12-02 14:56:50,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 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) [2024-12-02 14:56:50,478 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:56:50,478 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:50,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 14:56:50,479 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:56:50,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:50,479 INFO L85 PathProgramCache]: Analyzing trace with hash 780223954, now seen corresponding path program 1 times [2024-12-02 14:56:50,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:50,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833590769] [2024-12-02 14:56:50,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:50,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:50,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:50,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:50,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833590769] [2024-12-02 14:56:50,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833590769] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:50,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:50,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:56:50,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395890703] [2024-12-02 14:56:50,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:50,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:56:50,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:50,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:56:50,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:56:51,067 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 344 [2024-12-02 14:56:51,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 280 transitions, 577 flow. Second operand has 7 states, 7 states have (on average 280.14285714285717) internal successors, (1961), 7 states have internal predecessors, (1961), 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) [2024-12-02 14:56:51,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:56:51,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 344 [2024-12-02 14:56:51,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:56:51,485 INFO L124 PetriNetUnfolderBase]: 202/1252 cut-off events. [2024-12-02 14:56:51,485 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-12-02 14:56:51,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1782 conditions, 1252 events. 202/1252 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5654 event pairs, 96 based on Foata normal form. 9/1180 useless extension candidates. Maximal degree in co-relation 1748. Up to 201 conditions per place. [2024-12-02 14:56:51,490 INFO L140 encePairwiseOnDemand]: 315/344 looper letters, 52 selfloop transitions, 42 changer transitions 0/331 dead transitions. [2024-12-02 14:56:51,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 331 transitions, 885 flow [2024-12-02 14:56:51,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 14:56:51,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 14:56:51,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2852 transitions. [2024-12-02 14:56:51,494 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8290697674418605 [2024-12-02 14:56:51,494 INFO L175 Difference]: Start difference. First operand has 279 places, 280 transitions, 577 flow. Second operand 10 states and 2852 transitions. [2024-12-02 14:56:51,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 331 transitions, 885 flow [2024-12-02 14:56:51,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 331 transitions, 885 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 14:56:51,498 INFO L231 Difference]: Finished difference. Result has 292 places, 305 transitions, 769 flow [2024-12-02 14:56:51,498 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=577, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=769, PETRI_PLACES=292, PETRI_TRANSITIONS=305} [2024-12-02 14:56:51,499 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, -23 predicate places. [2024-12-02 14:56:51,499 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 305 transitions, 769 flow [2024-12-02 14:56:51,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 280.14285714285717) internal successors, (1961), 7 states have internal predecessors, (1961), 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) [2024-12-02 14:56:51,500 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:56:51,500 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:51,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 14:56:51,500 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:56:51,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:51,501 INFO L85 PathProgramCache]: Analyzing trace with hash -89260748, now seen corresponding path program 1 times [2024-12-02 14:56:51,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:51,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725875572] [2024-12-02 14:56:51,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:51,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:51,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:51,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:51,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725875572] [2024-12-02 14:56:51,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725875572] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:51,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:51,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:56:51,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068091288] [2024-12-02 14:56:51,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:51,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:56:51,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:51,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:56:51,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:56:51,569 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 344 [2024-12-02 14:56:51,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 305 transitions, 769 flow. Second operand has 3 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 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) [2024-12-02 14:56:51,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:56:51,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 344 [2024-12-02 14:56:51,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:56:51,685 INFO L124 PetriNetUnfolderBase]: 90/783 cut-off events. [2024-12-02 14:56:51,685 INFO L125 PetriNetUnfolderBase]: For 77/80 co-relation queries the response was YES. [2024-12-02 14:56:51,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1077 conditions, 783 events. 90/783 cut-off events. For 77/80 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2586 event pairs, 32 based on Foata normal form. 0/739 useless extension candidates. Maximal degree in co-relation 1037. Up to 120 conditions per place. [2024-12-02 14:56:51,689 INFO L140 encePairwiseOnDemand]: 342/344 looper letters, 11 selfloop transitions, 1 changer transitions 0/304 dead transitions. [2024-12-02 14:56:51,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 304 transitions, 791 flow [2024-12-02 14:56:51,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:56:51,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 14:56:51,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 930 transitions. [2024-12-02 14:56:51,692 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9011627906976745 [2024-12-02 14:56:51,692 INFO L175 Difference]: Start difference. First operand has 292 places, 305 transitions, 769 flow. Second operand 3 states and 930 transitions. [2024-12-02 14:56:51,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 304 transitions, 791 flow [2024-12-02 14:56:51,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 304 transitions, 791 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 14:56:51,696 INFO L231 Difference]: Finished difference. Result has 293 places, 304 transitions, 769 flow [2024-12-02 14:56:51,697 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=769, PETRI_PLACES=293, PETRI_TRANSITIONS=304} [2024-12-02 14:56:51,697 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, -22 predicate places. [2024-12-02 14:56:51,697 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 304 transitions, 769 flow [2024-12-02 14:56:51,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 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) [2024-12-02 14:56:51,698 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:56:51,698 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:51,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 14:56:51,698 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:56:51,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:51,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1976094477, now seen corresponding path program 1 times [2024-12-02 14:56:51,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:51,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718101883] [2024-12-02 14:56:51,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:51,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:51,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:51,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:51,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:51,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718101883] [2024-12-02 14:56:51,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718101883] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:51,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:51,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:56:51,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531643467] [2024-12-02 14:56:51,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:51,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:56:51,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:51,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:56:51,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:56:51,757 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-12-02 14:56:51,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 304 transitions, 769 flow. Second operand has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 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) [2024-12-02 14:56:51,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:56:51,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-12-02 14:56:51,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:56:51,928 INFO L124 PetriNetUnfolderBase]: 136/970 cut-off events. [2024-12-02 14:56:51,929 INFO L125 PetriNetUnfolderBase]: For 98/99 co-relation queries the response was YES. [2024-12-02 14:56:51,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1367 conditions, 970 events. 136/970 cut-off events. For 98/99 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3923 event pairs, 39 based on Foata normal form. 4/916 useless extension candidates. Maximal degree in co-relation 1330. Up to 141 conditions per place. [2024-12-02 14:56:51,932 INFO L140 encePairwiseOnDemand]: 339/344 looper letters, 15 selfloop transitions, 2 changer transitions 28/307 dead transitions. [2024-12-02 14:56:51,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 307 transitions, 817 flow [2024-12-02 14:56:51,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:56:51,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 14:56:51,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 926 transitions. [2024-12-02 14:56:51,936 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8972868217054264 [2024-12-02 14:56:51,936 INFO L175 Difference]: Start difference. First operand has 293 places, 304 transitions, 769 flow. Second operand 3 states and 926 transitions. [2024-12-02 14:56:51,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 307 transitions, 817 flow [2024-12-02 14:56:51,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 307 transitions, 816 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 14:56:51,940 INFO L231 Difference]: Finished difference. Result has 292 places, 274 transitions, 644 flow [2024-12-02 14:56:51,941 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=644, PETRI_PLACES=292, PETRI_TRANSITIONS=274} [2024-12-02 14:56:51,941 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, -23 predicate places. [2024-12-02 14:56:51,941 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 274 transitions, 644 flow [2024-12-02 14:56:51,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 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) [2024-12-02 14:56:51,942 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:56:51,942 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:51,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 14:56:51,942 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:56:51,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:51,942 INFO L85 PathProgramCache]: Analyzing trace with hash -2016087182, now seen corresponding path program 1 times [2024-12-02 14:56:51,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:51,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227065722] [2024-12-02 14:56:51,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:51,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:52,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:56:52,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:52,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227065722] [2024-12-02 14:56:52,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227065722] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:52,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:52,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:56:52,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50507450] [2024-12-02 14:56:52,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:52,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:56:52,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:52,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:56:52,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:56:52,575 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 344 [2024-12-02 14:56:52,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 274 transitions, 644 flow. Second operand has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 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) [2024-12-02 14:56:52,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:56:52,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 344 [2024-12-02 14:56:52,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:56:53,152 INFO L124 PetriNetUnfolderBase]: 231/1287 cut-off events. [2024-12-02 14:56:53,153 INFO L125 PetriNetUnfolderBase]: For 159/166 co-relation queries the response was YES. [2024-12-02 14:56:53,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1942 conditions, 1287 events. 231/1287 cut-off events. For 159/166 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 7366 event pairs, 74 based on Foata normal form. 0/1197 useless extension candidates. Maximal degree in co-relation 1900. Up to 282 conditions per place. [2024-12-02 14:56:53,157 INFO L140 encePairwiseOnDemand]: 336/344 looper letters, 47 selfloop transitions, 10 changer transitions 0/299 dead transitions. [2024-12-02 14:56:53,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 299 transitions, 824 flow [2024-12-02 14:56:53,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:56:53,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:56:53,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1773 transitions. [2024-12-02 14:56:53,162 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8590116279069767 [2024-12-02 14:56:53,162 INFO L175 Difference]: Start difference. First operand has 292 places, 274 transitions, 644 flow. Second operand 6 states and 1773 transitions. [2024-12-02 14:56:53,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 299 transitions, 824 flow [2024-12-02 14:56:53,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 299 transitions, 768 flow, removed 8 selfloop flow, removed 9 redundant places. [2024-12-02 14:56:53,166 INFO L231 Difference]: Finished difference. Result has 282 places, 283 transitions, 668 flow [2024-12-02 14:56:53,166 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=668, PETRI_PLACES=282, PETRI_TRANSITIONS=283} [2024-12-02 14:56:53,167 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, -33 predicate places. [2024-12-02 14:56:53,167 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 283 transitions, 668 flow [2024-12-02 14:56:53,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 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) [2024-12-02 14:56:53,168 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:56:53,168 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:53,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 14:56:53,168 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:56:53,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:53,169 INFO L85 PathProgramCache]: Analyzing trace with hash -433205515, now seen corresponding path program 1 times [2024-12-02 14:56:53,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:53,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209605498] [2024-12-02 14:56:53,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:53,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:53,235 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:56:53,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:53,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209605498] [2024-12-02 14:56:53,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209605498] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:53,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:53,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:56:53,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106161945] [2024-12-02 14:56:53,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:53,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:56:53,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:53,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:56:53,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:56:53,251 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-12-02 14:56:53,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 283 transitions, 668 flow. Second operand has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 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) [2024-12-02 14:56:53,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:56:53,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-12-02 14:56:53,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:56:53,463 INFO L124 PetriNetUnfolderBase]: 255/1345 cut-off events. [2024-12-02 14:56:53,463 INFO L125 PetriNetUnfolderBase]: For 671/671 co-relation queries the response was YES. [2024-12-02 14:56:53,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2254 conditions, 1345 events. 255/1345 cut-off events. For 671/671 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 7881 event pairs, 84 based on Foata normal form. 0/1259 useless extension candidates. Maximal degree in co-relation 2216. Up to 265 conditions per place. [2024-12-02 14:56:53,470 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 22 selfloop transitions, 2 changer transitions 0/288 dead transitions. [2024-12-02 14:56:53,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 288 transitions, 738 flow [2024-12-02 14:56:53,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:56:53,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 14:56:53,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 925 transitions. [2024-12-02 14:56:53,473 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8963178294573644 [2024-12-02 14:56:53,473 INFO L175 Difference]: Start difference. First operand has 282 places, 283 transitions, 668 flow. Second operand 3 states and 925 transitions. [2024-12-02 14:56:53,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 288 transitions, 738 flow [2024-12-02 14:56:53,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 288 transitions, 728 flow, removed 5 selfloop flow, removed 0 redundant places. [2024-12-02 14:56:53,477 INFO L231 Difference]: Finished difference. Result has 283 places, 282 transitions, 662 flow [2024-12-02 14:56:53,478 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=662, PETRI_PLACES=283, PETRI_TRANSITIONS=282} [2024-12-02 14:56:53,478 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, -32 predicate places. [2024-12-02 14:56:53,478 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 282 transitions, 662 flow [2024-12-02 14:56:53,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 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) [2024-12-02 14:56:53,479 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:56:53,479 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:53,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 14:56:53,479 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:56:53,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:53,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1570788794, now seen corresponding path program 1 times [2024-12-02 14:56:53,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:53,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721724563] [2024-12-02 14:56:53,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:53,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:53,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:56:53,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:53,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721724563] [2024-12-02 14:56:53,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721724563] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:53,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:53,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:56:53,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671100640] [2024-12-02 14:56:53,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:53,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:56:53,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:53,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:56:53,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:56:53,544 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 344 [2024-12-02 14:56:53,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 282 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 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) [2024-12-02 14:56:53,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:56:53,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 344 [2024-12-02 14:56:53,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:56:53,728 INFO L124 PetriNetUnfolderBase]: 187/1151 cut-off events. [2024-12-02 14:56:53,728 INFO L125 PetriNetUnfolderBase]: For 405/416 co-relation queries the response was YES. [2024-12-02 14:56:53,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1847 conditions, 1151 events. 187/1151 cut-off events. For 405/416 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 6015 event pairs, 4 based on Foata normal form. 0/1083 useless extension candidates. Maximal degree in co-relation 1808. Up to 213 conditions per place. [2024-12-02 14:56:53,736 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 21 selfloop transitions, 7 changer transitions 0/293 dead transitions. [2024-12-02 14:56:53,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 293 transitions, 764 flow [2024-12-02 14:56:53,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:56:53,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 14:56:53,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 935 transitions. [2024-12-02 14:56:53,738 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9060077519379846 [2024-12-02 14:56:53,738 INFO L175 Difference]: Start difference. First operand has 283 places, 282 transitions, 662 flow. Second operand 3 states and 935 transitions. [2024-12-02 14:56:53,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 293 transitions, 764 flow [2024-12-02 14:56:53,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 293 transitions, 760 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 14:56:53,744 INFO L231 Difference]: Finished difference. Result has 283 places, 287 transitions, 721 flow [2024-12-02 14:56:53,744 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=721, PETRI_PLACES=283, PETRI_TRANSITIONS=287} [2024-12-02 14:56:53,745 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, -32 predicate places. [2024-12-02 14:56:53,745 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 287 transitions, 721 flow [2024-12-02 14:56:53,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 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) [2024-12-02 14:56:53,745 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:56:53,746 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:53,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 14:56:53,746 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:56:53,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:53,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1460093157, now seen corresponding path program 1 times [2024-12-02 14:56:53,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:53,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433955978] [2024-12-02 14:56:53,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:53,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:55,638 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:56:55,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:55,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433955978] [2024-12-02 14:56:55,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433955978] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:55,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:55,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-12-02 14:56:55,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418815605] [2024-12-02 14:56:55,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:55,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 14:56:55,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:55,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 14:56:55,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2024-12-02 14:56:57,770 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 344 [2024-12-02 14:56:57,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 287 transitions, 721 flow. Second operand has 22 states, 22 states have (on average 252.54545454545453) internal successors, (5556), 22 states have internal predecessors, (5556), 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) [2024-12-02 14:56:57,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:56:57,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 344 [2024-12-02 14:56:57,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:56:59,697 INFO L124 PetriNetUnfolderBase]: 672/2542 cut-off events. [2024-12-02 14:56:59,698 INFO L125 PetriNetUnfolderBase]: For 927/958 co-relation queries the response was YES. [2024-12-02 14:56:59,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4685 conditions, 2542 events. 672/2542 cut-off events. For 927/958 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 18491 event pairs, 168 based on Foata normal form. 26/2406 useless extension candidates. Maximal degree in co-relation 4642. Up to 363 conditions per place. [2024-12-02 14:56:59,714 INFO L140 encePairwiseOnDemand]: 312/344 looper letters, 77 selfloop transitions, 35 changer transitions 0/318 dead transitions. [2024-12-02 14:56:59,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 318 transitions, 1037 flow [2024-12-02 14:56:59,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-02 14:56:59,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-12-02 14:56:59,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 8098 transitions. [2024-12-02 14:56:59,727 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7356468023255814 [2024-12-02 14:56:59,727 INFO L175 Difference]: Start difference. First operand has 283 places, 287 transitions, 721 flow. Second operand 32 states and 8098 transitions. [2024-12-02 14:56:59,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 318 transitions, 1037 flow [2024-12-02 14:56:59,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 318 transitions, 1037 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 14:56:59,734 INFO L231 Difference]: Finished difference. Result has 313 places, 286 transitions, 787 flow [2024-12-02 14:56:59,735 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=787, PETRI_PLACES=313, PETRI_TRANSITIONS=286} [2024-12-02 14:56:59,735 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, -2 predicate places. [2024-12-02 14:56:59,735 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 286 transitions, 787 flow [2024-12-02 14:56:59,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 252.54545454545453) internal successors, (5556), 22 states have internal predecessors, (5556), 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) [2024-12-02 14:56:59,737 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:56:59,737 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:59,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 14:56:59,738 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:56:59,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:59,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1037906910, now seen corresponding path program 1 times [2024-12-02 14:56:59,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:59,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436992543] [2024-12-02 14:56:59,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:59,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:57:00,294 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:57:00,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:57:00,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436992543] [2024-12-02 14:57:00,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436992543] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:57:00,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:57:00,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:57:00,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459920955] [2024-12-02 14:57:00,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:57:00,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:57:00,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:57:00,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:57:00,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:57:00,437 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 344 [2024-12-02 14:57:00,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 286 transitions, 787 flow. Second operand has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 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) [2024-12-02 14:57:00,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:57:00,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 344 [2024-12-02 14:57:00,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:57:00,861 INFO L124 PetriNetUnfolderBase]: 373/1726 cut-off events. [2024-12-02 14:57:00,861 INFO L125 PetriNetUnfolderBase]: For 1455/1463 co-relation queries the response was YES. [2024-12-02 14:57:00,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3388 conditions, 1726 events. 373/1726 cut-off events. For 1455/1463 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 10799 event pairs, 85 based on Foata normal form. 8/1640 useless extension candidates. Maximal degree in co-relation 3347. Up to 413 conditions per place. [2024-12-02 14:57:00,869 INFO L140 encePairwiseOnDemand]: 336/344 looper letters, 56 selfloop transitions, 15 changer transitions 0/315 dead transitions. [2024-12-02 14:57:00,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 315 transitions, 1047 flow [2024-12-02 14:57:00,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:57:00,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:57:00,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1773 transitions. [2024-12-02 14:57:00,871 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8590116279069767 [2024-12-02 14:57:00,871 INFO L175 Difference]: Start difference. First operand has 313 places, 286 transitions, 787 flow. Second operand 6 states and 1773 transitions. [2024-12-02 14:57:00,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 315 transitions, 1047 flow [2024-12-02 14:57:00,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 315 transitions, 975 flow, removed 0 selfloop flow, removed 31 redundant places. [2024-12-02 14:57:00,876 INFO L231 Difference]: Finished difference. Result has 292 places, 299 transitions, 869 flow [2024-12-02 14:57:00,876 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=869, PETRI_PLACES=292, PETRI_TRANSITIONS=299} [2024-12-02 14:57:00,876 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, -23 predicate places. [2024-12-02 14:57:00,876 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 299 transitions, 869 flow [2024-12-02 14:57:00,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 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) [2024-12-02 14:57:00,877 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:57:00,877 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:57:00,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 14:57:00,877 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:57:00,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:57:00,878 INFO L85 PathProgramCache]: Analyzing trace with hash -468623775, now seen corresponding path program 1 times [2024-12-02 14:57:00,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:57:00,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102529973] [2024-12-02 14:57:00,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:57:00,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:57:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:57:00,923 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:57:00,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:57:00,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102529973] [2024-12-02 14:57:00,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102529973] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:57:00,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:57:00,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:57:00,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703330108] [2024-12-02 14:57:00,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:57:00,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:57:00,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:57:00,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:57:00,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:57:00,935 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-12-02 14:57:00,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 299 transitions, 869 flow. Second operand has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 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) [2024-12-02 14:57:00,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:57:00,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-12-02 14:57:00,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:57:01,201 INFO L124 PetriNetUnfolderBase]: 434/1617 cut-off events. [2024-12-02 14:57:01,201 INFO L125 PetriNetUnfolderBase]: For 3557/3613 co-relation queries the response was YES. [2024-12-02 14:57:01,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3794 conditions, 1617 events. 434/1617 cut-off events. For 3557/3613 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9342 event pairs, 92 based on Foata normal form. 0/1496 useless extension candidates. Maximal degree in co-relation 3750. Up to 435 conditions per place. [2024-12-02 14:57:01,211 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 36 selfloop transitions, 2 changer transitions 0/305 dead transitions. [2024-12-02 14:57:01,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 305 transitions, 987 flow [2024-12-02 14:57:01,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:57:01,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 14:57:01,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 925 transitions. [2024-12-02 14:57:01,214 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8963178294573644 [2024-12-02 14:57:01,214 INFO L175 Difference]: Start difference. First operand has 292 places, 299 transitions, 869 flow. Second operand 3 states and 925 transitions. [2024-12-02 14:57:01,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 305 transitions, 987 flow [2024-12-02 14:57:01,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 305 transitions, 957 flow, removed 15 selfloop flow, removed 0 redundant places. [2024-12-02 14:57:01,221 INFO L231 Difference]: Finished difference. Result has 293 places, 298 transitions, 847 flow [2024-12-02 14:57:01,221 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=847, PETRI_PLACES=293, PETRI_TRANSITIONS=298} [2024-12-02 14:57:01,222 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, -22 predicate places. [2024-12-02 14:57:01,222 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 298 transitions, 847 flow [2024-12-02 14:57:01,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 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) [2024-12-02 14:57:01,222 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:57:01,222 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:57:01,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 14:57:01,223 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:57:01,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:57:01,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1935256271, now seen corresponding path program 1 times [2024-12-02 14:57:01,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:57:01,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389016299] [2024-12-02 14:57:01,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:57:01,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:57:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:57:02,099 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:57:02,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:57:02,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389016299] [2024-12-02 14:57:02,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389016299] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:57:02,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375446294] [2024-12-02 14:57:02,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:57:02,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:57:02,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:57:02,101 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:57:02,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:57:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:57:02,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-02 14:57:02,286 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:57:02,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-12-02 14:57:02,428 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 14:57:02,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-12-02 14:57:02,780 INFO L349 Elim1Store]: treesize reduction 648, result has 5.1 percent of original size [2024-12-02 14:57:02,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 77 treesize of output 77 [2024-12-02 14:57:02,801 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-12-02 14:57:02,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 67 [2024-12-02 14:57:02,851 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:57:02,852 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:57:03,024 INFO L349 Elim1Store]: treesize reduction 764, result has 11.9 percent of original size [2024-12-02 14:57:03,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 123 treesize of output 118 [2024-12-02 14:57:03,118 INFO L349 Elim1Store]: treesize reduction 200, result has 30.6 percent of original size [2024-12-02 14:57:03,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 134 treesize of output 142 [2024-12-02 14:57:03,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 7 [2024-12-02 14:57:03,199 INFO L349 Elim1Store]: treesize reduction 866, result has 0.1 percent of original size [2024-12-02 14:57:03,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 122 treesize of output 1 [2024-12-02 14:57:03,251 INFO L349 Elim1Store]: treesize reduction 866, result has 0.1 percent of original size [2024-12-02 14:57:03,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 123 treesize of output 1 [2024-12-02 14:57:03,297 INFO L349 Elim1Store]: treesize reduction 866, result has 0.1 percent of original size [2024-12-02 14:57:03,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 123 treesize of output 1 [2024-12-02 14:57:03,589 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:57:03,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375446294] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:57:03,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:57:03,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 21 [2024-12-02 14:57:03,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148511846] [2024-12-02 14:57:03,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:57:03,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 14:57:03,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:57:03,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 14:57:03,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-12-02 14:57:05,543 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 344 [2024-12-02 14:57:05,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 298 transitions, 847 flow. Second operand has 22 states, 22 states have (on average 261.0) internal successors, (5742), 22 states have internal predecessors, (5742), 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) [2024-12-02 14:57:05,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:57:05,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 344 [2024-12-02 14:57:05,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:57:07,437 INFO L124 PetriNetUnfolderBase]: 1346/5268 cut-off events. [2024-12-02 14:57:07,437 INFO L125 PetriNetUnfolderBase]: For 5589/5971 co-relation queries the response was YES. [2024-12-02 14:57:07,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10972 conditions, 5268 events. 1346/5268 cut-off events. For 5589/5971 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 45140 event pairs, 239 based on Foata normal form. 136/5115 useless extension candidates. Maximal degree in co-relation 10924. Up to 672 conditions per place. [2024-12-02 14:57:07,476 INFO L140 encePairwiseOnDemand]: 312/344 looper letters, 111 selfloop transitions, 58 changer transitions 0/388 dead transitions. [2024-12-02 14:57:07,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 388 transitions, 1728 flow [2024-12-02 14:57:07,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 14:57:07,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-12-02 14:57:07,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 6556 transitions. [2024-12-02 14:57:07,484 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7623255813953488 [2024-12-02 14:57:07,484 INFO L175 Difference]: Start difference. First operand has 293 places, 298 transitions, 847 flow. Second operand 25 states and 6556 transitions. [2024-12-02 14:57:07,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 388 transitions, 1728 flow [2024-12-02 14:57:07,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 388 transitions, 1724 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 14:57:07,497 INFO L231 Difference]: Finished difference. Result has 320 places, 330 transitions, 1268 flow [2024-12-02 14:57:07,498 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1268, PETRI_PLACES=320, PETRI_TRANSITIONS=330} [2024-12-02 14:57:07,498 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, 5 predicate places. [2024-12-02 14:57:07,498 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 330 transitions, 1268 flow [2024-12-02 14:57:07,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 261.0) internal successors, (5742), 22 states have internal predecessors, (5742), 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) [2024-12-02 14:57:07,500 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:57:07,500 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:57:07,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:57:07,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 14:57:07,701 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:57:07,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:57:07,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1390206865, now seen corresponding path program 2 times [2024-12-02 14:57:07,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:57:07,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354555550] [2024-12-02 14:57:07,702 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 14:57:07,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:57:07,761 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 14:57:07,761 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:57:08,890 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:57:08,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:57:08,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354555550] [2024-12-02 14:57:08,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354555550] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:57:08,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066988036] [2024-12-02 14:57:08,890 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 14:57:08,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:57:08,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:57:08,892 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:57:08,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 14:57:09,261 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 14:57:09,261 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:57:09,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 14:57:09,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:57:09,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-12-02 14:57:09,401 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 14:57:09,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-12-02 14:57:09,775 INFO L349 Elim1Store]: treesize reduction 648, result has 5.1 percent of original size [2024-12-02 14:57:09,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 77 treesize of output 77 [2024-12-02 14:57:09,788 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-12-02 14:57:09,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 67 [2024-12-02 14:57:09,804 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:57:09,805 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:57:09,976 INFO L349 Elim1Store]: treesize reduction 764, result has 11.9 percent of original size [2024-12-02 14:57:09,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 123 treesize of output 118 [2024-12-02 14:57:10,040 INFO L349 Elim1Store]: treesize reduction 200, result has 30.6 percent of original size [2024-12-02 14:57:10,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 134 treesize of output 142 [2024-12-02 14:57:10,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2024-12-02 14:57:10,097 INFO L349 Elim1Store]: treesize reduction 866, result has 0.1 percent of original size [2024-12-02 14:57:10,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 123 treesize of output 1 [2024-12-02 14:57:10,137 INFO L349 Elim1Store]: treesize reduction 866, result has 0.1 percent of original size [2024-12-02 14:57:10,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 123 treesize of output 1 [2024-12-02 14:57:10,171 INFO L349 Elim1Store]: treesize reduction 866, result has 0.1 percent of original size [2024-12-02 14:57:10,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 122 treesize of output 1 [2024-12-02 14:57:10,441 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:57:10,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066988036] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:57:10,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:57:10,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 14, 14] total 37 [2024-12-02 14:57:10,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316497916] [2024-12-02 14:57:10,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:57:10,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-12-02 14:57:10,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:57:10,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-12-02 14:57:10,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1298, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 14:57:14,926 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 344 [2024-12-02 14:57:14,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 330 transitions, 1268 flow. Second operand has 38 states, 38 states have (on average 208.94736842105263) internal successors, (7940), 38 states have internal predecessors, (7940), 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) [2024-12-02 14:57:14,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:57:14,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 344 [2024-12-02 14:57:14,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:57:18,524 INFO L124 PetriNetUnfolderBase]: 2371/8176 cut-off events. [2024-12-02 14:57:18,524 INFO L125 PetriNetUnfolderBase]: For 15522/17068 co-relation queries the response was YES. [2024-12-02 14:57:18,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19966 conditions, 8176 events. 2371/8176 cut-off events. For 15522/17068 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 78295 event pairs, 635 based on Foata normal form. 456/8400 useless extension candidates. Maximal degree in co-relation 19911. Up to 1808 conditions per place. [2024-12-02 14:57:18,562 INFO L140 encePairwiseOnDemand]: 291/344 looper letters, 144 selfloop transitions, 105 changer transitions 0/426 dead transitions. [2024-12-02 14:57:18,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 426 transitions, 2453 flow [2024-12-02 14:57:18,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-12-02 14:57:18,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2024-12-02 14:57:18,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 7708 transitions. [2024-12-02 14:57:18,567 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6055939660590823 [2024-12-02 14:57:18,567 INFO L175 Difference]: Start difference. First operand has 320 places, 330 transitions, 1268 flow. Second operand 37 states and 7708 transitions. [2024-12-02 14:57:18,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 426 transitions, 2453 flow [2024-12-02 14:57:18,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 426 transitions, 2408 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-12-02 14:57:18,583 INFO L231 Difference]: Finished difference. Result has 343 places, 369 transitions, 1882 flow [2024-12-02 14:57:18,584 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=1223, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=1882, PETRI_PLACES=343, PETRI_TRANSITIONS=369} [2024-12-02 14:57:18,584 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, 28 predicate places. [2024-12-02 14:57:18,584 INFO L471 AbstractCegarLoop]: Abstraction has has 343 places, 369 transitions, 1882 flow [2024-12-02 14:57:18,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 208.94736842105263) internal successors, (7940), 38 states have internal predecessors, (7940), 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) [2024-12-02 14:57:18,587 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:57:18,587 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:57:18,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 14:57:18,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:57:18,787 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:57:18,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:57:18,788 INFO L85 PathProgramCache]: Analyzing trace with hash -220630722, now seen corresponding path program 1 times [2024-12-02 14:57:18,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:57:18,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166720419] [2024-12-02 14:57:18,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:57:18,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:57:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:57:19,014 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 14:57:19,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:57:19,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166720419] [2024-12-02 14:57:19,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166720419] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:57:19,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977099852] [2024-12-02 14:57:19,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:57:19,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:57:19,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:57:19,016 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:57:19,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 14:57:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:57:19,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 14:57:19,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:57:19,509 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 14:57:19,510 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:57:19,852 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 14:57:19,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977099852] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:57:19,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:57:19,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2024-12-02 14:57:19,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580937502] [2024-12-02 14:57:19,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:57:19,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 14:57:19,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:57:19,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 14:57:19,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:57:20,917 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 344 [2024-12-02 14:57:20,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 369 transitions, 1882 flow. Second operand has 24 states, 24 states have (on average 267.125) internal successors, (6411), 24 states have internal predecessors, (6411), 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) [2024-12-02 14:57:20,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:57:20,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 344 [2024-12-02 14:57:20,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:57:24,039 INFO L124 PetriNetUnfolderBase]: 4136/14365 cut-off events. [2024-12-02 14:57:24,039 INFO L125 PetriNetUnfolderBase]: For 28360/32459 co-relation queries the response was YES. [2024-12-02 14:57:24,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33593 conditions, 14365 events. 4136/14365 cut-off events. For 28360/32459 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 148381 event pairs, 1390 based on Foata normal form. 250/13452 useless extension candidates. Maximal degree in co-relation 33536. Up to 3586 conditions per place. [2024-12-02 14:57:24,146 INFO L140 encePairwiseOnDemand]: 302/344 looper letters, 164 selfloop transitions, 97 changer transitions 2/522 dead transitions. [2024-12-02 14:57:24,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 522 transitions, 3281 flow [2024-12-02 14:57:24,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 14:57:24,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-12-02 14:57:24,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 6236 transitions. [2024-12-02 14:57:24,152 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7881698685540951 [2024-12-02 14:57:24,152 INFO L175 Difference]: Start difference. First operand has 343 places, 369 transitions, 1882 flow. Second operand 23 states and 6236 transitions. [2024-12-02 14:57:24,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 522 transitions, 3281 flow [2024-12-02 14:57:24,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 522 transitions, 3092 flow, removed 41 selfloop flow, removed 29 redundant places. [2024-12-02 14:57:24,209 INFO L231 Difference]: Finished difference. Result has 349 places, 433 transitions, 2397 flow [2024-12-02 14:57:24,209 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=1751, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=2397, PETRI_PLACES=349, PETRI_TRANSITIONS=433} [2024-12-02 14:57:24,210 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, 34 predicate places. [2024-12-02 14:57:24,210 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 433 transitions, 2397 flow [2024-12-02 14:57:24,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 267.125) internal successors, (6411), 24 states have internal predecessors, (6411), 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) [2024-12-02 14:57:24,211 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:57:24,211 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:57:24,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 14:57:24,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:57:24,411 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:57:24,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:57:24,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1695107886, now seen corresponding path program 1 times [2024-12-02 14:57:24,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:57:24,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770734886] [2024-12-02 14:57:24,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:57:24,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:57:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:57:24,729 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 26 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 14:57:24,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:57:24,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770734886] [2024-12-02 14:57:24,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770734886] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:57:24,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107821514] [2024-12-02 14:57:24,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:57:24,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:57:24,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:57:24,731 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:57:24,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 14:57:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:57:24,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 14:57:24,892 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:57:25,194 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 29 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 14:57:25,194 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:57:25,561 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 34 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 14:57:25,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107821514] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:57:25,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:57:25,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2024-12-02 14:57:25,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641638358] [2024-12-02 14:57:25,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:57:25,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 14:57:25,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:57:25,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 14:57:25,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:57:26,792 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 344 [2024-12-02 14:57:26,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 433 transitions, 2397 flow. Second operand has 24 states, 24 states have (on average 267.0) internal successors, (6408), 24 states have internal predecessors, (6408), 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) [2024-12-02 14:57:26,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:57:26,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 344 [2024-12-02 14:57:26,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:57:29,704 INFO L124 PetriNetUnfolderBase]: 2275/10372 cut-off events. [2024-12-02 14:57:29,704 INFO L125 PetriNetUnfolderBase]: For 25808/26076 co-relation queries the response was YES. [2024-12-02 14:57:29,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28463 conditions, 10372 events. 2275/10372 cut-off events. For 25808/26076 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 99687 event pairs, 672 based on Foata normal form. 87/10102 useless extension candidates. Maximal degree in co-relation 28390. Up to 1691 conditions per place. [2024-12-02 14:57:29,758 INFO L140 encePairwiseOnDemand]: 302/344 looper letters, 96 selfloop transitions, 44 changer transitions 151/544 dead transitions. [2024-12-02 14:57:29,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 544 transitions, 3808 flow [2024-12-02 14:57:29,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 14:57:29,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-12-02 14:57:29,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 6240 transitions. [2024-12-02 14:57:29,762 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.788675429726997 [2024-12-02 14:57:29,762 INFO L175 Difference]: Start difference. First operand has 349 places, 433 transitions, 2397 flow. Second operand 23 states and 6240 transitions. [2024-12-02 14:57:29,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 544 transitions, 3808 flow [2024-12-02 14:57:29,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 544 transitions, 3768 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-12-02 14:57:29,847 INFO L231 Difference]: Finished difference. Result has 374 places, 380 transitions, 2080 flow [2024-12-02 14:57:29,847 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=2326, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=2080, PETRI_PLACES=374, PETRI_TRANSITIONS=380} [2024-12-02 14:57:29,848 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, 59 predicate places. [2024-12-02 14:57:29,848 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 380 transitions, 2080 flow [2024-12-02 14:57:29,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 267.0) internal successors, (6408), 24 states have internal predecessors, (6408), 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) [2024-12-02 14:57:29,849 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:57:29,850 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:57:29,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 14:57:30,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:57:30,050 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 14:57:30,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:57:30,051 INFO L85 PathProgramCache]: Analyzing trace with hash 247141950, now seen corresponding path program 2 times [2024-12-02 14:57:30,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:57:30,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317413573] [2024-12-02 14:57:30,051 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 14:57:30,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:57:30,110 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 14:57:30,110 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:57:33,061 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-02 14:57:33,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:57:33,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317413573] [2024-12-02 14:57:33,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317413573] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:57:33,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471097439] [2024-12-02 14:57:33,061 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 14:57:33,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:57:33,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:57:33,063 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:57:33,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 14:57:33,944 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 14:57:33,945 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:57:33,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 70 conjuncts are in the unsatisfiable core [2024-12-02 14:57:33,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:57:33,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-12-02 14:57:34,184 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-12-02 14:57:34,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-12-02 14:57:34,597 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-12-02 14:57:34,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-12-02 14:57:35,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 14:57:35,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-12-02 14:57:35,479 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:57:35,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-12-02 14:57:35,574 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:57:35,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-12-02 14:57:35,730 INFO L349 Elim1Store]: treesize reduction 70, result has 33.3 percent of original size [2024-12-02 14:57:35,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 151 treesize of output 149 [2024-12-02 14:57:35,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 115 [2024-12-02 14:57:35,971 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-02 14:57:35,971 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:57:40,007 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse6 (* c_thread2Thread1of1ForFork1_~i~1 4))) (let ((.cse1 (+ .cse6 c_~B~0.offset)) (.cse2 (+ .cse6 c_~B~0.offset 1)) (.cse3 (+ .cse6 2 c_~B~0.offset)) (.cse4 (+ .cse6 3 c_~B~0.offset)) (.cse5 (select |c_#race| c_~A~0.base)) (.cse7 (* c_thread1Thread1of1ForFork0_~i~0 4))) (and (forall ((~A~0.offset Int) (v_ArrVal_1239 (Array Int Int))) (= (select (select (store (let ((.cse0 (store |c_#race| c_~A~0.base (store (store (store (store .cse5 (+ .cse6 ~A~0.offset) 0) (+ .cse6 ~A~0.offset 1) 0) (+ .cse6 2 ~A~0.offset) 0) (+ .cse6 3 ~A~0.offset) 0)))) (store .cse0 c_~B~0.base (store (store (store (store (select .cse0 c_~B~0.base) .cse1 0) .cse2 0) .cse3 0) .cse4 0))) c_~C~0.base v_ArrVal_1239) c_~B~0.base) (+ .cse7 c_~B~0.offset)) 0)) (forall ((~A~0.offset Int) (v_ArrVal_1239 (Array Int Int))) (= (select (select (store (let ((.cse8 (store |c_#race| c_~A~0.base (store (store (store (store .cse5 (+ .cse6 ~A~0.offset) 0) (+ .cse6 ~A~0.offset 1) 0) (+ .cse6 2 ~A~0.offset) 0) (+ .cse6 3 ~A~0.offset) 0)))) (store .cse8 c_~B~0.base (store (store (store (store (select .cse8 c_~B~0.base) .cse1 0) .cse2 0) .cse3 0) .cse4 0))) c_~C~0.base v_ArrVal_1239) c_~B~0.base) (+ 2 .cse7 c_~B~0.offset)) 0)) (forall ((~A~0.offset Int) (v_ArrVal_1239 (Array Int Int))) (= (select (select (store (let ((.cse9 (store |c_#race| c_~A~0.base (store (store (store (store .cse5 (+ .cse6 ~A~0.offset) 0) (+ .cse6 ~A~0.offset 1) 0) (+ .cse6 2 ~A~0.offset) 0) (+ .cse6 3 ~A~0.offset) 0)))) (store .cse9 c_~B~0.base (store (store (store (store (select .cse9 c_~B~0.base) .cse1 0) .cse2 0) .cse3 0) .cse4 0))) c_~C~0.base v_ArrVal_1239) c_~B~0.base) (+ 3 .cse7 c_~B~0.offset)) 0)) (forall ((~A~0.offset Int) (v_ArrVal_1239 (Array Int Int))) (= (select (select (store (let ((.cse10 (store |c_#race| c_~A~0.base (store (store (store (store .cse5 (+ .cse6 ~A~0.offset) 0) (+ .cse6 ~A~0.offset 1) 0) (+ .cse6 2 ~A~0.offset) 0) (+ .cse6 3 ~A~0.offset) 0)))) (store .cse10 c_~B~0.base (store (store (store (store (select .cse10 c_~B~0.base) .cse1 0) .cse2 0) .cse3 0) .cse4 0))) c_~C~0.base v_ArrVal_1239) c_~B~0.base) (+ .cse7 c_~B~0.offset 1)) 0))))) is different from false [2024-12-02 14:57:57,891 INFO L349 Elim1Store]: treesize reduction 1170, result has 8.1 percent of original size [2024-12-02 14:57:57,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 165 [2024-12-02 14:57:57,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2024-12-02 14:57:57,903 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:57:57,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 151 treesize of output 141 [2024-12-02 14:57:57,928 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:57:57,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 17 [2024-12-02 14:57:58,017 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 14:57:58,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 116 treesize of output 323 [2024-12-02 14:57:58,115 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 14:57:58,166 INFO L349 Elim1Store]: treesize reduction 1272, result has 0.1 percent of original size [2024-12-02 14:57:58,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 150 treesize of output 1 [2024-12-02 14:57:58,168 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 14:57:58,216 INFO L349 Elim1Store]: treesize reduction 1272, result has 0.1 percent of original size [2024-12-02 14:57:58,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 151 treesize of output 1 [2024-12-02 14:57:58,218 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 14:57:58,271 INFO L349 Elim1Store]: treesize reduction 1272, result has 0.1 percent of original size [2024-12-02 14:57:58,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 151 treesize of output 1 [2024-12-02 14:58:08,861 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-02 14:58:08,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471097439] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:58:08,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:58:08,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 25, 16] total 70 [2024-12-02 14:58:08,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169147265] [2024-12-02 14:58:08,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:58:08,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2024-12-02 14:58:08,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:58:08,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2024-12-02 14:58:08,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=4506, Unknown=51, NotChecked=136, Total=4970 [2024-12-02 14:58:09,488 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 344 [2024-12-02 14:58:09,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 380 transitions, 2080 flow. Second operand has 71 states, 71 states have (on average 160.08450704225353) internal successors, (11366), 71 states have internal predecessors, (11366), 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) [2024-12-02 14:58:09,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:58:09,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 344 [2024-12-02 14:58:09,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:58:50,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 14:59:53,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:00:27,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:00:32,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:00:36,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:00:56,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:01:02,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:01:25,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:02:02,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:03:38,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:03:46,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:03:52,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:04:19,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:04:26,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:04:34,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:04:40,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:05:11,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:06:03,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:06:04,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:06:11,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:06:12,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:06:17,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:06:22,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:06:37,640 INFO L124 PetriNetUnfolderBase]: 28061/51893 cut-off events. [2024-12-02 15:06:37,640 INFO L125 PetriNetUnfolderBase]: For 102218/102387 co-relation queries the response was YES. [2024-12-02 15:06:38,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157801 conditions, 51893 events. 28061/51893 cut-off events. For 102218/102387 co-relation queries the response was YES. Maximal size of possible extension queue 1541. Compared 490425 event pairs, 1455 based on Foata normal form. 280/47924 useless extension candidates. Maximal degree in co-relation 157712. Up to 9013 conditions per place. [2024-12-02 15:06:38,161 INFO L140 encePairwiseOnDemand]: 275/344 looper letters, 678 selfloop transitions, 455 changer transitions 28/1296 dead transitions. [2024-12-02 15:06:38,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 1296 transitions, 10299 flow [2024-12-02 15:06:38,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-12-02 15:06:38,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2024-12-02 15:06:38,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 15665 transitions. [2024-12-02 15:06:38,182 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47435198643410853 [2024-12-02 15:06:38,182 INFO L175 Difference]: Start difference. First operand has 374 places, 380 transitions, 2080 flow. Second operand 96 states and 15665 transitions. [2024-12-02 15:06:38,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 1296 transitions, 10299 flow [2024-12-02 15:06:39,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 1296 transitions, 9665 flow, removed 176 selfloop flow, removed 28 redundant places. [2024-12-02 15:06:39,605 INFO L231 Difference]: Finished difference. Result has 452 places, 783 transitions, 6929 flow [2024-12-02 15:06:39,606 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=1868, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=96, PETRI_FLOW=6929, PETRI_PLACES=452, PETRI_TRANSITIONS=783} [2024-12-02 15:06:39,606 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, 137 predicate places. [2024-12-02 15:06:39,606 INFO L471 AbstractCegarLoop]: Abstraction has has 452 places, 783 transitions, 6929 flow [2024-12-02 15:06:39,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 160.08450704225353) internal successors, (11366), 71 states have internal predecessors, (11366), 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) [2024-12-02 15:06:39,608 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:06:39,609 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:06:39,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 15:06:39,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:06:39,809 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-12-02 15:06:39,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:06:39,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1100709826, now seen corresponding path program 3 times [2024-12-02 15:06:39,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:06:39,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969367785] [2024-12-02 15:06:39,811 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 15:06:39,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:06:40,028 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-12-02 15:06:40,028 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:06:51,867 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-02 15:06:51,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:06:51,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969367785] [2024-12-02 15:06:51,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969367785] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:06:51,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429955679] [2024-12-02 15:06:51,867 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 15:06:51,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:06:51,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:06:51,869 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:06:51,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75578c7-62dc-4acf-a7a1-61e670e1e692/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 15:06:53,954 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-12-02 15:06:53,955 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:06:53,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 86 conjuncts are in the unsatisfiable core [2024-12-02 15:06:53,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:06:53,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-12-02 15:06:54,602 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-12-02 15:06:54,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-12-02 15:06:55,783 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-12-02 15:06:55,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-12-02 15:06:57,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-02 15:06:57,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 15:06:58,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-12-02 15:06:58,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2024-12-02 15:06:59,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:06:59,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:06:59,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:06:59,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:06:59,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 31 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 147 [2024-12-02 15:06:59,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 113 [2024-12-02 15:06:59,419 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-02 15:06:59,419 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:07:48,328 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse5 (* c_thread1Thread1of1ForFork0_~i~0 4))) (let ((.cse8 (+ 3 .cse5 c_~B~0.offset))) (let ((.cse2 (store |c_#race| c_~B~0.base (store (select |c_#race| c_~B~0.base) .cse8 0)))) (let ((.cse0 (+ c_thread2Thread1of1ForFork1_~i~1 1)) (.cse4 (select .cse2 c_~A~0.base))) (and (forall ((v_thread2Thread1of1ForFork1_~i~1_35 Int) (v_ArrVal_1491 (Array Int Int))) (or (< v_thread2Thread1of1ForFork1_~i~1_35 .cse0) (= (select (select (store (let ((.cse3 (* v_thread2Thread1of1ForFork1_~i~1_35 4))) (let ((.cse1 (store (store (store (store .cse4 (+ c_~A~0.offset .cse3) 0) (+ c_~A~0.offset .cse3 1) 0) (+ c_~A~0.offset 2 .cse3) 0) (+ c_~A~0.offset 3 .cse3) 0))) (store (store |c_#race| c_~A~0.base .cse1) c_~B~0.base (store (store (store (store (select (store .cse2 c_~A~0.base .cse1) c_~B~0.base) (+ .cse3 c_~B~0.offset) 0) (+ .cse3 c_~B~0.offset 1) 0) (+ 2 .cse3 c_~B~0.offset) 0) (+ 3 .cse3 c_~B~0.offset) 0)))) c_~C~0.base v_ArrVal_1491) c_~B~0.base) (+ .cse5 c_~B~0.offset 1)) 0))) (forall ((v_thread2Thread1of1ForFork1_~i~1_35 Int) (v_ArrVal_1491 (Array Int Int))) (or (= (select (select (store (let ((.cse7 (* v_thread2Thread1of1ForFork1_~i~1_35 4))) (let ((.cse6 (store (store (store (store .cse4 (+ c_~A~0.offset .cse7) 0) (+ c_~A~0.offset .cse7 1) 0) (+ c_~A~0.offset 2 .cse7) 0) (+ c_~A~0.offset 3 .cse7) 0))) (store (store |c_#race| c_~A~0.base .cse6) c_~B~0.base (store (store (store (store (select (store .cse2 c_~A~0.base .cse6) c_~B~0.base) (+ .cse7 c_~B~0.offset) 0) (+ .cse7 c_~B~0.offset 1) 0) (+ 2 .cse7 c_~B~0.offset) 0) (+ 3 .cse7 c_~B~0.offset) 0)))) c_~C~0.base v_ArrVal_1491) c_~B~0.base) .cse8) 0) (< v_thread2Thread1of1ForFork1_~i~1_35 .cse0))) (forall ((v_thread2Thread1of1ForFork1_~i~1_35 Int) (v_ArrVal_1491 (Array Int Int))) (or (< v_thread2Thread1of1ForFork1_~i~1_35 .cse0) (= (select (select (store (let ((.cse10 (* v_thread2Thread1of1ForFork1_~i~1_35 4))) (let ((.cse9 (store (store (store (store .cse4 (+ c_~A~0.offset .cse10) 0) (+ c_~A~0.offset .cse10 1) 0) (+ c_~A~0.offset 2 .cse10) 0) (+ c_~A~0.offset 3 .cse10) 0))) (store (store |c_#race| c_~A~0.base .cse9) c_~B~0.base (store (store (store (store (select (store .cse2 c_~A~0.base .cse9) c_~B~0.base) (+ .cse10 c_~B~0.offset) 0) (+ .cse10 c_~B~0.offset 1) 0) (+ 2 .cse10 c_~B~0.offset) 0) (+ 3 .cse10 c_~B~0.offset) 0)))) c_~C~0.base v_ArrVal_1491) c_~B~0.base) (+ .cse5 c_~B~0.offset)) 0))) (forall ((v_thread2Thread1of1ForFork1_~i~1_35 Int) (v_ArrVal_1491 (Array Int Int))) (or (< v_thread2Thread1of1ForFork1_~i~1_35 .cse0) (= (select (select (store (let ((.cse12 (* v_thread2Thread1of1ForFork1_~i~1_35 4))) (let ((.cse11 (store (store (store (store .cse4 (+ c_~A~0.offset .cse12) 0) (+ c_~A~0.offset .cse12 1) 0) (+ c_~A~0.offset 2 .cse12) 0) (+ c_~A~0.offset 3 .cse12) 0))) (store (store |c_#race| c_~A~0.base .cse11) c_~B~0.base (store (store (store (store (select (store .cse2 c_~A~0.base .cse11) c_~B~0.base) (+ .cse12 c_~B~0.offset) 0) (+ .cse12 c_~B~0.offset 1) 0) (+ 2 .cse12 c_~B~0.offset) 0) (+ 3 .cse12 c_~B~0.offset) 0)))) c_~C~0.base v_ArrVal_1491) c_~B~0.base) (+ 2 .cse5 c_~B~0.offset)) 0)))))))) is different from false [2024-12-02 15:09:36,212 INFO L349 Elim1Store]: treesize reduction 1170, result has 8.1 percent of original size [2024-12-02 15:09:36,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 165 [2024-12-02 15:09:36,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2024-12-02 15:09:36,237 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:09:36,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 151 treesize of output 141 [2024-12-02 15:09:36,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 17 [2024-12-02 15:09:36,470 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:09:36,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 116 treesize of output 323 [2024-12-02 15:09:36,745 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 15:09:36,865 INFO L349 Elim1Store]: treesize reduction 1272, result has 0.1 percent of original size [2024-12-02 15:09:36,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 151 treesize of output 1 [2024-12-02 15:09:36,870 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 15:09:36,962 INFO L349 Elim1Store]: treesize reduction 1272, result has 0.1 percent of original size [2024-12-02 15:09:36,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 150 treesize of output 1 [2024-12-02 15:09:36,966 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 15:09:37,080 INFO L349 Elim1Store]: treesize reduction 1272, result has 0.1 percent of original size [2024-12-02 15:09:37,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 151 treesize of output 1 [2024-12-02 15:10:03,154 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-02 15:10:03,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429955679] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:10:03,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:10:03,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25, 18] total 66 [2024-12-02 15:10:03,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904795524] [2024-12-02 15:10:03,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:10:03,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-12-02 15:10:03,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:10:03,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-12-02 15:10:03,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=3901, Unknown=122, NotChecked=128, Total=4422 [2024-12-02 15:10:19,897 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 344 [2024-12-02 15:10:19,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 783 transitions, 6929 flow. Second operand has 67 states, 67 states have (on average 160.0597014925373) internal successors, (10724), 67 states have internal predecessors, (10724), 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) [2024-12-02 15:10:19,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:10:19,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 344 [2024-12-02 15:10:19,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand