./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/test-easy1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10434e5d-b06c-42c0-847e-3996dc865483/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10434e5d-b06c-42c0-847e-3996dc865483/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10434e5d-b06c-42c0-847e-3996dc865483/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10434e5d-b06c-42c0-847e-3996dc865483/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/test-easy1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10434e5d-b06c-42c0-847e-3996dc865483/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10434e5d-b06c-42c0-847e-3996dc865483/bin/uautomizer-verify-VRDe98Ueme --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 935a7b7fee114f90b65d69dd73b2635844dd9aedca06c4cbc37a4ce046611c9d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:53:27,811 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:53:27,936 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10434e5d-b06c-42c0-847e-3996dc865483/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:53:27,947 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:53:27,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:53:27,989 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:53:27,990 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:53:27,990 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:53:27,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:53:27,998 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:53:28,000 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:53:28,000 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:53:28,001 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:53:28,003 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:53:28,003 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:53:28,004 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:53:28,005 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:53:28,005 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:53:28,006 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:53:28,006 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:53:28,007 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:53:28,007 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:53:28,008 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:53:28,008 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:53:28,009 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:53:28,009 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:53:28,010 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:53:28,011 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:53:28,012 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:53:28,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:53:28,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:53:28,014 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:53:28,014 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:53:28,015 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:53:28,015 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:53:28,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:53:28,016 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:53:28,016 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:53:28,016 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:53:28,017 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:53:28,017 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:53:28,018 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10434e5d-b06c-42c0-847e-3996dc865483/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10434e5d-b06c-42c0-847e-3996dc865483/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 935a7b7fee114f90b65d69dd73b2635844dd9aedca06c4cbc37a4ce046611c9d [2023-11-26 11:53:28,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:53:28,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:53:28,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:53:28,415 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:53:28,416 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:53:28,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10434e5d-b06c-42c0-847e-3996dc865483/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/test-easy1.wvr.c [2023-11-26 11:53:31,522 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:53:31,755 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:53:31,756 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10434e5d-b06c-42c0-847e-3996dc865483/sv-benchmarks/c/weaver/test-easy1.wvr.c [2023-11-26 11:53:31,764 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10434e5d-b06c-42c0-847e-3996dc865483/bin/uautomizer-verify-VRDe98Ueme/data/7843a4f1b/830a41ed0b8e49849cbe0f1c88cd9df0/FLAG01041f761 [2023-11-26 11:53:31,794 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10434e5d-b06c-42c0-847e-3996dc865483/bin/uautomizer-verify-VRDe98Ueme/data/7843a4f1b/830a41ed0b8e49849cbe0f1c88cd9df0 [2023-11-26 11:53:31,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:53:31,808 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:53:31,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:53:31,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:53:31,820 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:53:31,821 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:53:31" (1/1) ... [2023-11-26 11:53:31,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77fafb5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:31, skipping insertion in model container [2023-11-26 11:53:31,822 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:53:31" (1/1) ... [2023-11-26 11:53:31,884 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:53:32,080 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:53:32,090 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:53:32,115 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:53:32,130 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:53:32,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:32 WrapperNode [2023-11-26 11:53:32,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:53:32,131 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:53:32,132 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:53:32,132 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:53:32,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:32" (1/1) ... [2023-11-26 11:53:32,147 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:32" (1/1) ... [2023-11-26 11:53:32,170 INFO L138 Inliner]: procedures = 21, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 91 [2023-11-26 11:53:32,171 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:53:32,171 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:53:32,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:53:32,172 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:53:32,180 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:32" (1/1) ... [2023-11-26 11:53:32,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:32" (1/1) ... [2023-11-26 11:53:32,184 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:32" (1/1) ... [2023-11-26 11:53:32,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:32" (1/1) ... [2023-11-26 11:53:32,194 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:32" (1/1) ... [2023-11-26 11:53:32,198 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:32" (1/1) ... [2023-11-26 11:53:32,200 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:32" (1/1) ... [2023-11-26 11:53:32,201 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:32" (1/1) ... [2023-11-26 11:53:32,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:53:32,205 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:53:32,205 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:53:32,205 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:53:32,207 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:32" (1/1) ... [2023-11-26 11:53:32,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:53:32,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10434e5d-b06c-42c0-847e-3996dc865483/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:53:32,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10434e5d-b06c-42c0-847e-3996dc865483/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:53:32,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10434e5d-b06c-42c0-847e-3996dc865483/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:53:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:53:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 11:53:32,282 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 11:53:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 11:53:32,282 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 11:53:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:53:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:53:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:53:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:53:32,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:53:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:53:32,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:53:32,287 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:53:32,429 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:53:32,431 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:53:32,728 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:53:32,741 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:53:32,742 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 11:53:32,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:53:32 BoogieIcfgContainer [2023-11-26 11:53:32,744 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:53:32,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:53:32,747 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:53:32,751 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:53:32,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:53:31" (1/3) ... [2023-11-26 11:53:32,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38779bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:53:32, skipping insertion in model container [2023-11-26 11:53:32,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:32" (2/3) ... [2023-11-26 11:53:32,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38779bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:53:32, skipping insertion in model container [2023-11-26 11:53:32,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:53:32" (3/3) ... [2023-11-26 11:53:32,754 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy1.wvr.c [2023-11-26 11:53:32,761 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:53:32,772 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:53:32,772 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2023-11-26 11:53:32,772 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:53:32,880 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-26 11:53:32,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 150 transitions, 314 flow [2023-11-26 11:53:32,997 INFO L124 PetriNetUnfolderBase]: 7/148 cut-off events. [2023-11-26 11:53:32,997 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 11:53:33,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 148 events. 7/148 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 140 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2023-11-26 11:53:33,003 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 150 transitions, 314 flow [2023-11-26 11:53:33,010 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 127 transitions, 266 flow [2023-11-26 11:53:33,021 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:53:33,029 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1b273687, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:53:33,029 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2023-11-26 11:53:33,037 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:53:33,037 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2023-11-26 11:53:33,037 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:53:33,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:33,038 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:33,039 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-26 11:53:33,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:33,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1461178011, now seen corresponding path program 1 times [2023-11-26 11:53:33,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:33,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582911049] [2023-11-26 11:53:33,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:33,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:33,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:33,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:33,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582911049] [2023-11-26 11:53:33,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582911049] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:33,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:33,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:53:33,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032419005] [2023-11-26 11:53:33,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:33,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:53:33,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:33,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:53:33,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:53:33,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 150 [2023-11-26 11:53:33,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 127 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:33,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:33,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 150 [2023-11-26 11:53:33,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:33,622 INFO L124 PetriNetUnfolderBase]: 7/145 cut-off events. [2023-11-26 11:53:33,622 INFO L125 PetriNetUnfolderBase]: For 13/15 co-relation queries the response was YES. [2023-11-26 11:53:33,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 145 events. 7/145 cut-off events. For 13/15 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 273 event pairs, 3 based on Foata normal form. 6/128 useless extension candidates. Maximal degree in co-relation 94. Up to 21 conditions per place. [2023-11-26 11:53:33,630 INFO L140 encePairwiseOnDemand]: 144/150 looper letters, 13 selfloop transitions, 2 changer transitions 1/123 dead transitions. [2023-11-26 11:53:33,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 123 transitions, 288 flow [2023-11-26 11:53:33,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:53:33,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:53:33,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 403 transitions. [2023-11-26 11:53:33,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8955555555555555 [2023-11-26 11:53:33,658 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 403 transitions. [2023-11-26 11:53:33,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 403 transitions. [2023-11-26 11:53:33,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:33,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 403 transitions. [2023-11-26 11:53:33,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:33,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:33,681 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:33,683 INFO L175 Difference]: Start difference. First operand has 128 places, 127 transitions, 266 flow. Second operand 3 states and 403 transitions. [2023-11-26 11:53:33,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 123 transitions, 288 flow [2023-11-26 11:53:33,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 123 transitions, 280 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:53:33,692 INFO L231 Difference]: Finished difference. Result has 125 places, 122 transitions, 252 flow [2023-11-26 11:53:33,694 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=125, PETRI_TRANSITIONS=122} [2023-11-26 11:53:33,698 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -3 predicate places. [2023-11-26 11:53:33,698 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 122 transitions, 252 flow [2023-11-26 11:53:33,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:33,699 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:33,699 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:33,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:53:33,700 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-26 11:53:33,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:33,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1011619418, now seen corresponding path program 1 times [2023-11-26 11:53:33,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:33,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058639393] [2023-11-26 11:53:33,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:33,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:33,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:33,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:33,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058639393] [2023-11-26 11:53:33,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058639393] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:33,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:33,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:53:33,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387455681] [2023-11-26 11:53:33,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:33,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:53:33,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:33,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:53:33,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:53:33,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 150 [2023-11-26 11:53:33,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 122 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:33,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:33,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 150 [2023-11-26 11:53:33,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:33,863 INFO L124 PetriNetUnfolderBase]: 7/143 cut-off events. [2023-11-26 11:53:33,863 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2023-11-26 11:53:33,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 143 events. 7/143 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 228 event pairs, 3 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 145. Up to 20 conditions per place. [2023-11-26 11:53:33,865 INFO L140 encePairwiseOnDemand]: 147/150 looper letters, 12 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2023-11-26 11:53:33,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 121 transitions, 278 flow [2023-11-26 11:53:33,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:53:33,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:53:33,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 402 transitions. [2023-11-26 11:53:33,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8933333333333333 [2023-11-26 11:53:33,868 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 402 transitions. [2023-11-26 11:53:33,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 402 transitions. [2023-11-26 11:53:33,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:33,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 402 transitions. [2023-11-26 11:53:33,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:33,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:33,874 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:33,874 INFO L175 Difference]: Start difference. First operand has 125 places, 122 transitions, 252 flow. Second operand 3 states and 402 transitions. [2023-11-26 11:53:33,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 121 transitions, 278 flow [2023-11-26 11:53:33,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 121 transitions, 274 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:53:33,879 INFO L231 Difference]: Finished difference. Result has 123 places, 121 transitions, 250 flow [2023-11-26 11:53:33,880 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=123, PETRI_TRANSITIONS=121} [2023-11-26 11:53:33,880 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -5 predicate places. [2023-11-26 11:53:33,881 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 121 transitions, 250 flow [2023-11-26 11:53:33,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:33,881 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:33,882 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:33,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:53:33,882 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-26 11:53:33,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:33,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1891086432, now seen corresponding path program 1 times [2023-11-26 11:53:33,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:33,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032643923] [2023-11-26 11:53:33,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:33,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:33,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:33,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:33,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032643923] [2023-11-26 11:53:33,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032643923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:33,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:33,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:53:33,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209866036] [2023-11-26 11:53:33,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:33,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:53:33,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:33,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:53:33,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:53:34,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 150 [2023-11-26 11:53:34,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 121 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:34,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:34,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 150 [2023-11-26 11:53:34,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:34,046 INFO L124 PetriNetUnfolderBase]: 9/139 cut-off events. [2023-11-26 11:53:34,046 INFO L125 PetriNetUnfolderBase]: For 2/6 co-relation queries the response was YES. [2023-11-26 11:53:34,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 139 events. 9/139 cut-off events. For 2/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 268 event pairs, 4 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 145. Up to 24 conditions per place. [2023-11-26 11:53:34,048 INFO L140 encePairwiseOnDemand]: 142/150 looper letters, 15 selfloop transitions, 3 changer transitions 0/118 dead transitions. [2023-11-26 11:53:34,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 118 transitions, 281 flow [2023-11-26 11:53:34,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:53:34,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:53:34,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2023-11-26 11:53:34,051 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8777777777777778 [2023-11-26 11:53:34,051 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 395 transitions. [2023-11-26 11:53:34,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 395 transitions. [2023-11-26 11:53:34,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:34,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 395 transitions. [2023-11-26 11:53:34,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:34,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:34,057 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:34,057 INFO L175 Difference]: Start difference. First operand has 123 places, 121 transitions, 250 flow. Second operand 3 states and 395 transitions. [2023-11-26 11:53:34,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 118 transitions, 281 flow [2023-11-26 11:53:34,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 118 transitions, 277 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:53:34,062 INFO L231 Difference]: Finished difference. Result has 119 places, 117 transitions, 249 flow [2023-11-26 11:53:34,063 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=249, PETRI_PLACES=119, PETRI_TRANSITIONS=117} [2023-11-26 11:53:34,063 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -9 predicate places. [2023-11-26 11:53:34,064 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 117 transitions, 249 flow [2023-11-26 11:53:34,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:34,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:34,065 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:34,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:53:34,065 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-26 11:53:34,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:34,066 INFO L85 PathProgramCache]: Analyzing trace with hash -562886520, now seen corresponding path program 1 times [2023-11-26 11:53:34,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:34,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844088276] [2023-11-26 11:53:34,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:34,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:34,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:34,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:34,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:34,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844088276] [2023-11-26 11:53:34,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844088276] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:34,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:34,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:53:34,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430554082] [2023-11-26 11:53:34,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:34,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:53:34,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:34,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:53:34,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:53:34,149 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 150 [2023-11-26 11:53:34,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 117 transitions, 249 flow. Second operand has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:34,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:34,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 150 [2023-11-26 11:53:34,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:34,192 INFO L124 PetriNetUnfolderBase]: 9/136 cut-off events. [2023-11-26 11:53:34,192 INFO L125 PetriNetUnfolderBase]: For 8/12 co-relation queries the response was YES. [2023-11-26 11:53:34,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 136 events. 9/136 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 226 event pairs, 4 based on Foata normal form. 1/124 useless extension candidates. Maximal degree in co-relation 128. Up to 21 conditions per place. [2023-11-26 11:53:34,194 INFO L140 encePairwiseOnDemand]: 143/150 looper letters, 10 selfloop transitions, 3 changer transitions 5/115 dead transitions. [2023-11-26 11:53:34,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 115 transitions, 276 flow [2023-11-26 11:53:34,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:53:34,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:53:34,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2023-11-26 11:53:34,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2023-11-26 11:53:34,198 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 400 transitions. [2023-11-26 11:53:34,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 400 transitions. [2023-11-26 11:53:34,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:34,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 400 transitions. [2023-11-26 11:53:34,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:34,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:34,203 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:34,203 INFO L175 Difference]: Start difference. First operand has 119 places, 117 transitions, 249 flow. Second operand 3 states and 400 transitions. [2023-11-26 11:53:34,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 115 transitions, 276 flow [2023-11-26 11:53:34,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 115 transitions, 273 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:53:34,208 INFO L231 Difference]: Finished difference. Result has 117 places, 109 transitions, 240 flow [2023-11-26 11:53:34,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=117, PETRI_TRANSITIONS=109} [2023-11-26 11:53:34,210 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -11 predicate places. [2023-11-26 11:53:34,210 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 109 transitions, 240 flow [2023-11-26 11:53:34,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:34,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:34,211 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:34,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:53:34,212 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-26 11:53:34,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:34,212 INFO L85 PathProgramCache]: Analyzing trace with hash 934156713, now seen corresponding path program 1 times [2023-11-26 11:53:34,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:34,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140237913] [2023-11-26 11:53:34,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:34,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:34,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:34,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:34,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140237913] [2023-11-26 11:53:34,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140237913] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:34,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:34,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:53:34,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824778022] [2023-11-26 11:53:34,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:34,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:53:34,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:34,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:53:34,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:53:34,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 150 [2023-11-26 11:53:34,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 109 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:34,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:34,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 150 [2023-11-26 11:53:34,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:34,407 INFO L124 PetriNetUnfolderBase]: 10/130 cut-off events. [2023-11-26 11:53:34,407 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2023-11-26 11:53:34,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 130 events. 10/130 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 275 event pairs, 4 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 132. Up to 21 conditions per place. [2023-11-26 11:53:34,409 INFO L140 encePairwiseOnDemand]: 147/150 looper letters, 12 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2023-11-26 11:53:34,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 109 transitions, 269 flow [2023-11-26 11:53:34,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:53:34,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:53:34,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 404 transitions. [2023-11-26 11:53:34,412 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8977777777777778 [2023-11-26 11:53:34,413 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 404 transitions. [2023-11-26 11:53:34,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 404 transitions. [2023-11-26 11:53:34,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:34,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 404 transitions. [2023-11-26 11:53:34,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:34,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:34,418 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:34,418 INFO L175 Difference]: Start difference. First operand has 117 places, 109 transitions, 240 flow. Second operand 3 states and 404 transitions. [2023-11-26 11:53:34,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 109 transitions, 269 flow [2023-11-26 11:53:34,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 109 transitions, 266 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:53:34,423 INFO L231 Difference]: Finished difference. Result has 112 places, 108 transitions, 239 flow [2023-11-26 11:53:34,423 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=239, PETRI_PLACES=112, PETRI_TRANSITIONS=108} [2023-11-26 11:53:34,424 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -16 predicate places. [2023-11-26 11:53:34,425 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 108 transitions, 239 flow [2023-11-26 11:53:34,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:34,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:34,426 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:34,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:53:34,426 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-26 11:53:34,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:34,427 INFO L85 PathProgramCache]: Analyzing trace with hash 129427379, now seen corresponding path program 1 times [2023-11-26 11:53:34,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:34,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813176822] [2023-11-26 11:53:34,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:34,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:35,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:35,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:35,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813176822] [2023-11-26 11:53:35,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813176822] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:35,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:35,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:53:35,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734240704] [2023-11-26 11:53:35,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:35,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:53:35,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:35,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:53:35,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:53:35,271 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 150 [2023-11-26 11:53:35,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 108 transitions, 239 flow. Second operand has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:35,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:35,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 150 [2023-11-26 11:53:35,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:35,309 INFO L124 PetriNetUnfolderBase]: 3/107 cut-off events. [2023-11-26 11:53:35,309 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 11:53:35,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 107 events. 3/107 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 120. Up to 5 conditions per place. [2023-11-26 11:53:35,311 INFO L140 encePairwiseOnDemand]: 145/150 looper letters, 6 selfloop transitions, 4 changer transitions 0/107 dead transitions. [2023-11-26 11:53:35,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 107 transitions, 257 flow [2023-11-26 11:53:35,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:53:35,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:53:35,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 797 transitions. [2023-11-26 11:53:35,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8855555555555555 [2023-11-26 11:53:35,315 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 797 transitions. [2023-11-26 11:53:35,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 797 transitions. [2023-11-26 11:53:35,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:35,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 797 transitions. [2023-11-26 11:53:35,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:35,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:35,323 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:35,324 INFO L175 Difference]: Start difference. First operand has 112 places, 108 transitions, 239 flow. Second operand 6 states and 797 transitions. [2023-11-26 11:53:35,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 107 transitions, 257 flow [2023-11-26 11:53:35,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 107 transitions, 253 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:53:35,328 INFO L231 Difference]: Finished difference. Result has 114 places, 107 transitions, 241 flow [2023-11-26 11:53:35,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=114, PETRI_TRANSITIONS=107} [2023-11-26 11:53:35,329 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -14 predicate places. [2023-11-26 11:53:35,329 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 107 transitions, 241 flow [2023-11-26 11:53:35,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:35,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:35,330 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:35,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:53:35,331 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-26 11:53:35,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:35,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1205083847, now seen corresponding path program 1 times [2023-11-26 11:53:35,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:35,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208722031] [2023-11-26 11:53:35,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:35,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:35,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:35,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208722031] [2023-11-26 11:53:35,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208722031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:35,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:35,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:53:35,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759291710] [2023-11-26 11:53:35,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:35,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:53:35,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:35,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:53:35,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:53:35,427 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 150 [2023-11-26 11:53:35,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 107 transitions, 241 flow. Second operand has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:35,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:35,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 150 [2023-11-26 11:53:35,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:35,466 INFO L124 PetriNetUnfolderBase]: 10/128 cut-off events. [2023-11-26 11:53:35,466 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-26 11:53:35,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 128 events. 10/128 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 234 event pairs, 4 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 113. Up to 20 conditions per place. [2023-11-26 11:53:35,468 INFO L140 encePairwiseOnDemand]: 147/150 looper letters, 11 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2023-11-26 11:53:35,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 107 transitions, 268 flow [2023-11-26 11:53:35,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:53:35,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:53:35,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2023-11-26 11:53:35,471 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9022222222222223 [2023-11-26 11:53:35,471 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 406 transitions. [2023-11-26 11:53:35,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 406 transitions. [2023-11-26 11:53:35,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:35,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 406 transitions. [2023-11-26 11:53:35,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:35,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:35,476 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:35,476 INFO L175 Difference]: Start difference. First operand has 114 places, 107 transitions, 241 flow. Second operand 3 states and 406 transitions. [2023-11-26 11:53:35,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 107 transitions, 268 flow [2023-11-26 11:53:35,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 107 transitions, 261 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:53:35,481 INFO L231 Difference]: Finished difference. Result has 111 places, 106 transitions, 236 flow [2023-11-26 11:53:35,481 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=111, PETRI_TRANSITIONS=106} [2023-11-26 11:53:35,483 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -17 predicate places. [2023-11-26 11:53:35,483 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 106 transitions, 236 flow [2023-11-26 11:53:35,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:35,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:35,484 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:35,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:53:35,485 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-26 11:53:35,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:35,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1540150233, now seen corresponding path program 1 times [2023-11-26 11:53:35,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:35,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062975836] [2023-11-26 11:53:35,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:35,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:36,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:36,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:36,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062975836] [2023-11-26 11:53:36,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062975836] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:36,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:36,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:53:36,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572840215] [2023-11-26 11:53:36,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:36,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:53:36,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:36,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:53:36,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:53:36,394 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 150 [2023-11-26 11:53:36,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 106 transitions, 236 flow. Second operand has 6 states, 6 states have (on average 132.66666666666666) internal successors, (796), 6 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:36,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:36,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 150 [2023-11-26 11:53:36,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:36,432 INFO L124 PetriNetUnfolderBase]: 3/105 cut-off events. [2023-11-26 11:53:36,432 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 11:53:36,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 105 events. 3/105 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 95 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 119. Up to 6 conditions per place. [2023-11-26 11:53:36,434 INFO L140 encePairwiseOnDemand]: 145/150 looper letters, 0 selfloop transitions, 0 changer transitions 105/105 dead transitions. [2023-11-26 11:53:36,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 105 transitions, 254 flow [2023-11-26 11:53:36,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:53:36,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:53:36,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 797 transitions. [2023-11-26 11:53:36,438 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8855555555555555 [2023-11-26 11:53:36,438 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 797 transitions. [2023-11-26 11:53:36,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 797 transitions. [2023-11-26 11:53:36,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:36,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 797 transitions. [2023-11-26 11:53:36,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:36,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:36,448 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:36,448 INFO L175 Difference]: Start difference. First operand has 111 places, 106 transitions, 236 flow. Second operand 6 states and 797 transitions. [2023-11-26 11:53:36,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 105 transitions, 254 flow [2023-11-26 11:53:36,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 105 transitions, 250 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:53:36,451 INFO L231 Difference]: Finished difference. Result has 113 places, 0 transitions, 0 flow [2023-11-26 11:53:36,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=113, PETRI_TRANSITIONS=0} [2023-11-26 11:53:36,454 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -15 predicate places. [2023-11-26 11:53:36,455 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 0 transitions, 0 flow [2023-11-26 11:53:36,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.66666666666666) internal successors, (796), 6 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:36,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (22 of 23 remaining) [2023-11-26 11:53:36,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2023-11-26 11:53:36,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2023-11-26 11:53:36,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2023-11-26 11:53:36,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2023-11-26 11:53:36,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2023-11-26 11:53:36,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2023-11-26 11:53:36,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2023-11-26 11:53:36,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2023-11-26 11:53:36,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2023-11-26 11:53:36,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2023-11-26 11:53:36,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2023-11-26 11:53:36,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2023-11-26 11:53:36,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2023-11-26 11:53:36,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2023-11-26 11:53:36,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 23 remaining) [2023-11-26 11:53:36,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 23 remaining) [2023-11-26 11:53:36,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2023-11-26 11:53:36,469 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2023-11-26 11:53:36,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2023-11-26 11:53:36,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2023-11-26 11:53:36,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2023-11-26 11:53:36,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2023-11-26 11:53:36,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:53:36,472 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:36,479 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 11:53:36,479 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:53:36,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:53:36 BasicIcfg [2023-11-26 11:53:36,489 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:53:36,489 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:53:36,490 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:53:36,490 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:53:36,490 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:53:32" (3/4) ... [2023-11-26 11:53:36,493 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:53:36,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-26 11:53:36,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-26 11:53:36,505 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-26 11:53:36,506 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 11:53:36,506 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 11:53:36,506 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:53:36,624 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10434e5d-b06c-42c0-847e-3996dc865483/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:53:36,625 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10434e5d-b06c-42c0-847e-3996dc865483/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:53:36,625 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:53:36,625 INFO L158 Benchmark]: Toolchain (without parser) took 4827.61ms. Allocated memory was 146.8MB in the beginning and 186.6MB in the end (delta: 39.8MB). Free memory was 119.4MB in the beginning and 77.0MB in the end (delta: 42.4MB). Peak memory consumption was 82.2MB. Max. memory is 16.1GB. [2023-11-26 11:53:36,626 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:53:36,626 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.10ms. Allocated memory is still 146.8MB. Free memory was 118.8MB in the beginning and 107.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 11:53:36,627 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.21ms. Allocated memory is still 146.8MB. Free memory was 107.9MB in the beginning and 105.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:53:36,627 INFO L158 Benchmark]: Boogie Preprocessor took 33.11ms. Allocated memory is still 146.8MB. Free memory was 105.8MB in the beginning and 104.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:53:36,627 INFO L158 Benchmark]: RCFGBuilder took 538.94ms. Allocated memory is still 146.8MB. Free memory was 104.5MB in the beginning and 88.3MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 11:53:36,628 INFO L158 Benchmark]: TraceAbstraction took 3742.15ms. Allocated memory was 146.8MB in the beginning and 186.6MB in the end (delta: 39.8MB). Free memory was 87.7MB in the beginning and 82.3MB in the end (delta: 5.4MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. [2023-11-26 11:53:36,628 INFO L158 Benchmark]: Witness Printer took 135.42ms. Allocated memory is still 186.6MB. Free memory was 82.3MB in the beginning and 77.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:53:36,630 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.10ms. Allocated memory is still 146.8MB. Free memory was 118.8MB in the beginning and 107.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.21ms. Allocated memory is still 146.8MB. Free memory was 107.9MB in the beginning and 105.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.11ms. Allocated memory is still 146.8MB. Free memory was 105.8MB in the beginning and 104.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 538.94ms. Allocated memory is still 146.8MB. Free memory was 104.5MB in the beginning and 88.3MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3742.15ms. Allocated memory was 146.8MB in the beginning and 186.6MB in the end (delta: 39.8MB). Free memory was 87.7MB in the beginning and 82.3MB in the end (delta: 5.4MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. * Witness Printer took 135.42ms. Allocated memory is still 186.6MB. Free memory was 82.3MB in the beginning and 77.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 184 locations, 23 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 335 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 120 mSDsluCounter, 98 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 411 IncrementalHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 98 mSDtfsCounter, 411 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=266occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 356 NumberOfCodeBlocks, 356 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 348 ConstructedInterpolants, 0 QuantifiedInterpolants, 522 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 11:53:36,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10434e5d-b06c-42c0-847e-3996dc865483/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE