./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/condvar.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/condvar.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl --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 08550a9d023a2de1ac334a3445fa7327c26092d061f764efe50453540d837a7a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:27:11,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:27:11,670 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:27:11,682 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:27:11,682 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:27:11,729 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:27:11,730 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:27:11,731 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:27:11,732 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:27:11,737 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:27:11,738 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:27:11,739 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:27:11,739 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:27:11,741 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:27:11,742 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:27:11,742 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:27:11,742 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:27:11,743 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:27:11,743 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:27:11,744 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:27:11,744 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:27:11,745 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:27:11,745 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:27:11,746 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:27:11,746 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:27:11,747 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:27:11,747 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:27:11,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:27:11,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:27:11,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:27:11,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:27:11,751 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:27:11,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:27:11,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:27:11,752 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:27:11,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:27:11,752 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:27:11,752 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:27:11,753 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:27:11,753 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:27:11,753 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:27:11,754 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_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08550a9d023a2de1ac334a3445fa7327c26092d061f764efe50453540d837a7a [2023-11-12 02:27:12,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:27:12,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:27:12,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:27:12,090 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:27:12,091 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:27:12,092 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-divine/condvar.i [2023-11-12 02:27:15,204 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:27:15,467 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:27:15,468 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/sv-benchmarks/c/pthread-divine/condvar.i [2023-11-12 02:27:15,495 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/data/335b0c7dd/d2d51f67155341c78f949c80a475398f/FLAGf98758bd9 [2023-11-12 02:27:15,508 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/data/335b0c7dd/d2d51f67155341c78f949c80a475398f [2023-11-12 02:27:15,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:27:15,512 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:27:15,514 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:27:15,514 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:27:15,520 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:27:15,521 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:27:15" (1/1) ... [2023-11-12 02:27:15,522 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf51f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:15, skipping insertion in model container [2023-11-12 02:27:15,522 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:27:15" (1/1) ... [2023-11-12 02:27:15,595 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:27:15,788 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 02:27:16,066 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:27:16,088 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:27:16,106 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 02:27:16,169 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:27:16,212 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:16,220 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:27:16,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:16 WrapperNode [2023-11-12 02:27:16,221 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:27:16,223 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:27:16,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:27:16,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:27:16,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:16" (1/1) ... [2023-11-12 02:27:16,270 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:16" (1/1) ... [2023-11-12 02:27:16,316 INFO L138 Inliner]: procedures = 169, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 91 [2023-11-12 02:27:16,316 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:27:16,317 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:27:16,317 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:27:16,317 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:27:16,328 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:16" (1/1) ... [2023-11-12 02:27:16,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:16" (1/1) ... [2023-11-12 02:27:16,344 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:16" (1/1) ... [2023-11-12 02:27:16,346 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:16" (1/1) ... [2023-11-12 02:27:16,352 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:16" (1/1) ... [2023-11-12 02:27:16,366 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:16" (1/1) ... [2023-11-12 02:27:16,368 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:16" (1/1) ... [2023-11-12 02:27:16,380 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:16" (1/1) ... [2023-11-12 02:27:16,383 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:27:16,384 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:27:16,388 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:27:16,389 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:27:16,390 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:16" (1/1) ... [2023-11-12 02:27:16,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:27:16,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:16,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:27:16,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:27:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:27:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:27:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:27:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:27:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:27:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:27:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:27:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-12 02:27:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-12 02:27:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:27:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:27:16,483 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:27:16,632 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:27:16,635 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:27:16,940 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:27:16,950 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:27:16,951 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:27:16,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:27:16 BoogieIcfgContainer [2023-11-12 02:27:16,954 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:27:16,959 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:27:16,960 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:27:16,964 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:27:16,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:27:15" (1/3) ... [2023-11-12 02:27:16,965 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52eb1314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:27:16, skipping insertion in model container [2023-11-12 02:27:16,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:16" (2/3) ... [2023-11-12 02:27:16,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52eb1314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:27:16, skipping insertion in model container [2023-11-12 02:27:16,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:27:16" (3/3) ... [2023-11-12 02:27:16,969 INFO L112 eAbstractionObserver]: Analyzing ICFG condvar.i [2023-11-12 02:27:16,980 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:27:16,992 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:27:16,993 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-11-12 02:27:16,994 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:27:17,054 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-12 02:27:17,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 101 transitions, 209 flow [2023-11-12 02:27:17,149 INFO L124 PetriNetUnfolderBase]: 6/100 cut-off events. [2023-11-12 02:27:17,150 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 02:27:17,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 100 events. 6/100 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-11-12 02:27:17,157 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 101 transitions, 209 flow [2023-11-12 02:27:17,162 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 93 transitions, 189 flow [2023-11-12 02:27:17,166 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:27:17,178 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 93 transitions, 189 flow [2023-11-12 02:27:17,181 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 93 transitions, 189 flow [2023-11-12 02:27:17,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 93 transitions, 189 flow [2023-11-12 02:27:17,230 INFO L124 PetriNetUnfolderBase]: 6/93 cut-off events. [2023-11-12 02:27:17,232 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:27:17,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 93 events. 6/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 141 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-11-12 02:27:17,236 INFO L119 LiptonReduction]: Number of co-enabled transitions 1508 [2023-11-12 02:27:21,395 INFO L134 LiptonReduction]: Checked pairs total: 3734 [2023-11-12 02:27:21,395 INFO L136 LiptonReduction]: Total number of compositions: 80 [2023-11-12 02:27:21,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:27:21,419 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;@3d3c6957, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:27:21,419 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-12 02:27:21,424 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:27:21,424 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2023-11-12 02:27:21,425 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:27:21,425 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:21,426 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:27:21,426 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-12 02:27:21,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:21,432 INFO L85 PathProgramCache]: Analyzing trace with hash 346827218, now seen corresponding path program 1 times [2023-11-12 02:27:21,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:21,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410810462] [2023-11-12 02:27:21,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:21,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:21,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:21,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410810462] [2023-11-12 02:27:21,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410810462] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:21,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:21,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:27:21,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732465909] [2023-11-12 02:27:21,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:21,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:27:21,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:21,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:27:21,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:27:21,696 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 181 [2023-11-12 02:27:21,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 24 transitions, 51 flow. Second operand has 2 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 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) [2023-11-12 02:27:21,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:21,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 181 [2023-11-12 02:27:21,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:21,735 INFO L124 PetriNetUnfolderBase]: 16/58 cut-off events. [2023-11-12 02:27:21,736 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:27:21,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 58 events. 16/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 153 event pairs, 8 based on Foata normal form. 10/56 useless extension candidates. Maximal degree in co-relation 86. Up to 33 conditions per place. [2023-11-12 02:27:21,738 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 10 selfloop transitions, 0 changer transitions 0/21 dead transitions. [2023-11-12 02:27:21,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 21 transitions, 65 flow [2023-11-12 02:27:21,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:27:21,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:27:21,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 203 transitions. [2023-11-12 02:27:21,753 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5607734806629834 [2023-11-12 02:27:21,754 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 203 transitions. [2023-11-12 02:27:21,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 203 transitions. [2023-11-12 02:27:21,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:21,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 203 transitions. [2023-11-12 02:27:21,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 101.5) internal successors, (203), 2 states have internal predecessors, (203), 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) [2023-11-12 02:27:21,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 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) [2023-11-12 02:27:21,768 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 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) [2023-11-12 02:27:21,770 INFO L175 Difference]: Start difference. First operand has 24 places, 24 transitions, 51 flow. Second operand 2 states and 203 transitions. [2023-11-12 02:27:21,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 21 transitions, 65 flow [2023-11-12 02:27:21,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 21 transitions, 64 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:27:21,775 INFO L231 Difference]: Finished difference. Result has 23 places, 21 transitions, 44 flow [2023-11-12 02:27:21,777 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=23, PETRI_TRANSITIONS=21} [2023-11-12 02:27:21,781 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -1 predicate places. [2023-11-12 02:27:21,782 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 21 transitions, 44 flow [2023-11-12 02:27:21,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 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) [2023-11-12 02:27:21,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:21,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:27:21,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:27:21,783 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-12 02:27:21,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:21,784 INFO L85 PathProgramCache]: Analyzing trace with hash 346829411, now seen corresponding path program 1 times [2023-11-12 02:27:21,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:21,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916135487] [2023-11-12 02:27:21,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:21,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:21,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:21,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916135487] [2023-11-12 02:27:21,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916135487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:21,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:21,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:27:21,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722085616] [2023-11-12 02:27:21,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:21,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:27:21,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:21,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:27:21,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:27:21,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 181 [2023-11-12 02:27:21,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 21 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2023-11-12 02:27:21,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:21,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 181 [2023-11-12 02:27:21,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:21,929 INFO L124 PetriNetUnfolderBase]: 41/119 cut-off events. [2023-11-12 02:27:21,930 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:27:21,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 119 events. 41/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 449 event pairs, 6 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 207. Up to 52 conditions per place. [2023-11-12 02:27:21,932 INFO L140 encePairwiseOnDemand]: 177/181 looper letters, 21 selfloop transitions, 3 changer transitions 0/31 dead transitions. [2023-11-12 02:27:21,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 31 transitions, 112 flow [2023-11-12 02:27:21,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:27:21,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:27:21,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2023-11-12 02:27:21,936 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5488029465930019 [2023-11-12 02:27:21,936 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2023-11-12 02:27:21,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2023-11-12 02:27:21,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:21,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2023-11-12 02:27:21,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2023-11-12 02:27:21,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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) [2023-11-12 02:27:21,943 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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) [2023-11-12 02:27:21,943 INFO L175 Difference]: Start difference. First operand has 23 places, 21 transitions, 44 flow. Second operand 3 states and 298 transitions. [2023-11-12 02:27:21,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 31 transitions, 112 flow [2023-11-12 02:27:21,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 31 transitions, 112 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:27:21,945 INFO L231 Difference]: Finished difference. Result has 27 places, 24 transitions, 70 flow [2023-11-12 02:27:21,945 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=27, PETRI_TRANSITIONS=24} [2023-11-12 02:27:21,946 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 3 predicate places. [2023-11-12 02:27:21,946 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 24 transitions, 70 flow [2023-11-12 02:27:21,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2023-11-12 02:27:21,947 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:21,947 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:27:21,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:27:21,948 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-12 02:27:21,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:21,948 INFO L85 PathProgramCache]: Analyzing trace with hash -2133281929, now seen corresponding path program 1 times [2023-11-12 02:27:21,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:21,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047391082] [2023-11-12 02:27:21,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:21,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:22,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:22,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:22,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047391082] [2023-11-12 02:27:22,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047391082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:22,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:22,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:27:22,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052560418] [2023-11-12 02:27:22,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:22,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:27:22,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:22,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:27:22,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:27:22,073 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 181 [2023-11-12 02:27:22,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 24 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2023-11-12 02:27:22,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:22,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 181 [2023-11-12 02:27:22,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:22,131 INFO L124 PetriNetUnfolderBase]: 35/107 cut-off events. [2023-11-12 02:27:22,132 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-12 02:27:22,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 107 events. 35/107 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 447 event pairs, 19 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 208. Up to 65 conditions per place. [2023-11-12 02:27:22,134 INFO L140 encePairwiseOnDemand]: 177/181 looper letters, 15 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2023-11-12 02:27:22,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 29 transitions, 116 flow [2023-11-12 02:27:22,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:27:22,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:27:22,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2023-11-12 02:27:22,139 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5156537753222836 [2023-11-12 02:27:22,139 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 280 transitions. [2023-11-12 02:27:22,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 280 transitions. [2023-11-12 02:27:22,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:22,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 280 transitions. [2023-11-12 02:27:22,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2023-11-12 02:27:22,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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) [2023-11-12 02:27:22,147 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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) [2023-11-12 02:27:22,148 INFO L175 Difference]: Start difference. First operand has 27 places, 24 transitions, 70 flow. Second operand 3 states and 280 transitions. [2023-11-12 02:27:22,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 29 transitions, 116 flow [2023-11-12 02:27:22,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 110 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:27:22,150 INFO L231 Difference]: Finished difference. Result has 28 places, 26 transitions, 83 flow [2023-11-12 02:27:22,150 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=28, PETRI_TRANSITIONS=26} [2023-11-12 02:27:22,151 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 4 predicate places. [2023-11-12 02:27:22,152 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 26 transitions, 83 flow [2023-11-12 02:27:22,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2023-11-12 02:27:22,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:22,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:27:22,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:27:22,153 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-12 02:27:22,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:22,154 INFO L85 PathProgramCache]: Analyzing trace with hash -2133264050, now seen corresponding path program 1 times [2023-11-12 02:27:22,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:22,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156876378] [2023-11-12 02:27:22,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:22,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:22,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:22,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:22,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156876378] [2023-11-12 02:27:22,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156876378] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:22,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:22,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:27:22,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344763256] [2023-11-12 02:27:22,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:22,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:27:22,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:22,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:27:22,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:27:22,300 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 181 [2023-11-12 02:27:22,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 26 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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) [2023-11-12 02:27:22,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:22,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 181 [2023-11-12 02:27:22,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:22,392 INFO L124 PetriNetUnfolderBase]: 35/118 cut-off events. [2023-11-12 02:27:22,406 INFO L125 PetriNetUnfolderBase]: For 14/16 co-relation queries the response was YES. [2023-11-12 02:27:22,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 118 events. 35/118 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 495 event pairs, 14 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 246. Up to 52 conditions per place. [2023-11-12 02:27:22,412 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 14 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2023-11-12 02:27:22,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 32 transitions, 134 flow [2023-11-12 02:27:22,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:27:22,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:27:22,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2023-11-12 02:27:22,414 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5211786372007366 [2023-11-12 02:27:22,415 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 283 transitions. [2023-11-12 02:27:22,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 283 transitions. [2023-11-12 02:27:22,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:22,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 283 transitions. [2023-11-12 02:27:22,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2023-11-12 02:27:22,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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) [2023-11-12 02:27:22,420 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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) [2023-11-12 02:27:22,420 INFO L175 Difference]: Start difference. First operand has 28 places, 26 transitions, 83 flow. Second operand 3 states and 283 transitions. [2023-11-12 02:27:22,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 32 transitions, 134 flow [2023-11-12 02:27:22,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 32 transitions, 130 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:27:22,425 INFO L231 Difference]: Finished difference. Result has 30 places, 28 transitions, 103 flow [2023-11-12 02:27:22,426 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=30, PETRI_TRANSITIONS=28} [2023-11-12 02:27:22,428 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 6 predicate places. [2023-11-12 02:27:22,428 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 28 transitions, 103 flow [2023-11-12 02:27:22,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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) [2023-11-12 02:27:22,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:22,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:22,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:27:22,435 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-12 02:27:22,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:22,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1296066965, now seen corresponding path program 1 times [2023-11-12 02:27:22,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:22,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884394074] [2023-11-12 02:27:22,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:22,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:22,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:22,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:22,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884394074] [2023-11-12 02:27:22,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884394074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:22,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:22,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:27:22,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157236724] [2023-11-12 02:27:22,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:22,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:27:22,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:22,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:27:22,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:27:22,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 181 [2023-11-12 02:27:22,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 28 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2023-11-12 02:27:22,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:22,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 181 [2023-11-12 02:27:22,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:22,639 INFO L124 PetriNetUnfolderBase]: 75/193 cut-off events. [2023-11-12 02:27:22,639 INFO L125 PetriNetUnfolderBase]: For 71/81 co-relation queries the response was YES. [2023-11-12 02:27:22,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 193 events. 75/193 cut-off events. For 71/81 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 869 event pairs, 24 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 481. Up to 94 conditions per place. [2023-11-12 02:27:22,641 INFO L140 encePairwiseOnDemand]: 177/181 looper letters, 22 selfloop transitions, 4 changer transitions 1/37 dead transitions. [2023-11-12 02:27:22,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 37 transitions, 191 flow [2023-11-12 02:27:22,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:27:22,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:27:22,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2023-11-12 02:27:22,644 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5451197053406999 [2023-11-12 02:27:22,644 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2023-11-12 02:27:22,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2023-11-12 02:27:22,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:22,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2023-11-12 02:27:22,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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) [2023-11-12 02:27:22,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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) [2023-11-12 02:27:22,649 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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) [2023-11-12 02:27:22,649 INFO L175 Difference]: Start difference. First operand has 30 places, 28 transitions, 103 flow. Second operand 3 states and 296 transitions. [2023-11-12 02:27:22,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 37 transitions, 191 flow [2023-11-12 02:27:22,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 37 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:27:22,652 INFO L231 Difference]: Finished difference. Result has 33 places, 30 transitions, 128 flow [2023-11-12 02:27:22,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=33, PETRI_TRANSITIONS=30} [2023-11-12 02:27:22,653 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 9 predicate places. [2023-11-12 02:27:22,654 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 30 transitions, 128 flow [2023-11-12 02:27:22,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2023-11-12 02:27:22,654 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:22,654 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:22,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:27:22,655 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-12 02:27:22,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:22,656 INFO L85 PathProgramCache]: Analyzing trace with hash 34828510, now seen corresponding path program 1 times [2023-11-12 02:27:22,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:22,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977193425] [2023-11-12 02:27:22,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:22,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:22,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:22,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:22,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977193425] [2023-11-12 02:27:22,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977193425] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:27:22,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360867676] [2023-11-12 02:27:22,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:22,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:22,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:22,721 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:27:22,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:27:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:22,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:27:22,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:22,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:27:22,831 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:27:22,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360867676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:22,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:27:22,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-12 02:27:22,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185908207] [2023-11-12 02:27:22,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:22,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:27:22,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:22,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:27:22,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:27:22,864 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 181 [2023-11-12 02:27:22,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2023-11-12 02:27:22,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:22,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 181 [2023-11-12 02:27:22,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:22,932 INFO L124 PetriNetUnfolderBase]: 72/194 cut-off events. [2023-11-12 02:27:22,932 INFO L125 PetriNetUnfolderBase]: For 119/128 co-relation queries the response was YES. [2023-11-12 02:27:22,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 194 events. 72/194 cut-off events. For 119/128 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 849 event pairs, 30 based on Foata normal form. 3/185 useless extension candidates. Maximal degree in co-relation 501. Up to 124 conditions per place. [2023-11-12 02:27:22,935 INFO L140 encePairwiseOnDemand]: 177/181 looper letters, 17 selfloop transitions, 5 changer transitions 2/36 dead transitions. [2023-11-12 02:27:22,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 192 flow [2023-11-12 02:27:22,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:27:22,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:27:22,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2023-11-12 02:27:22,937 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5156537753222836 [2023-11-12 02:27:22,937 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 280 transitions. [2023-11-12 02:27:22,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 280 transitions. [2023-11-12 02:27:22,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:22,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 280 transitions. [2023-11-12 02:27:22,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2023-11-12 02:27:22,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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) [2023-11-12 02:27:22,942 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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) [2023-11-12 02:27:22,943 INFO L175 Difference]: Start difference. First operand has 33 places, 30 transitions, 128 flow. Second operand 3 states and 280 transitions. [2023-11-12 02:27:22,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 192 flow [2023-11-12 02:27:22,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 36 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:27:22,947 INFO L231 Difference]: Finished difference. Result has 34 places, 32 transitions, 149 flow [2023-11-12 02:27:22,947 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=149, PETRI_PLACES=34, PETRI_TRANSITIONS=32} [2023-11-12 02:27:22,948 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 10 predicate places. [2023-11-12 02:27:22,948 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 32 transitions, 149 flow [2023-11-12 02:27:22,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2023-11-12 02:27:22,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:22,949 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:22,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:27:23,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:23,157 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-12 02:27:23,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:23,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1870453656, now seen corresponding path program 1 times [2023-11-12 02:27:23,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:23,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409826621] [2023-11-12 02:27:23,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:23,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:23,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:23,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:23,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409826621] [2023-11-12 02:27:23,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409826621] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:23,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:23,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:27:23,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498438000] [2023-11-12 02:27:23,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:23,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:27:23,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:23,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:27:23,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:27:23,288 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 181 [2023-11-12 02:27:23,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 32 transitions, 149 flow. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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) [2023-11-12 02:27:23,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:23,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 181 [2023-11-12 02:27:23,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:23,333 INFO L124 PetriNetUnfolderBase]: 29/96 cut-off events. [2023-11-12 02:27:23,333 INFO L125 PetriNetUnfolderBase]: For 48/51 co-relation queries the response was YES. [2023-11-12 02:27:23,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 96 events. 29/96 cut-off events. For 48/51 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 324 event pairs, 10 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 258. Up to 32 conditions per place. [2023-11-12 02:27:23,335 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 12 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2023-11-12 02:27:23,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 27 transitions, 145 flow [2023-11-12 02:27:23,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:27:23,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:27:23,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2023-11-12 02:27:23,340 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5340699815837937 [2023-11-12 02:27:23,340 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 290 transitions. [2023-11-12 02:27:23,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 290 transitions. [2023-11-12 02:27:23,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:23,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 290 transitions. [2023-11-12 02:27:23,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2023-11-12 02:27:23,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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) [2023-11-12 02:27:23,344 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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) [2023-11-12 02:27:23,345 INFO L175 Difference]: Start difference. First operand has 34 places, 32 transitions, 149 flow. Second operand 3 states and 290 transitions. [2023-11-12 02:27:23,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 27 transitions, 145 flow [2023-11-12 02:27:23,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 27 transitions, 126 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-11-12 02:27:23,349 INFO L231 Difference]: Finished difference. Result has 30 places, 25 transitions, 102 flow [2023-11-12 02:27:23,349 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=30, PETRI_TRANSITIONS=25} [2023-11-12 02:27:23,351 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 6 predicate places. [2023-11-12 02:27:23,351 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 25 transitions, 102 flow [2023-11-12 02:27:23,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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) [2023-11-12 02:27:23,352 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:23,352 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:23,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:27:23,353 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-12 02:27:23,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:23,353 INFO L85 PathProgramCache]: Analyzing trace with hash 85663555, now seen corresponding path program 1 times [2023-11-12 02:27:23,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:23,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609126503] [2023-11-12 02:27:23,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:23,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:23,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:23,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:23,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609126503] [2023-11-12 02:27:23,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609126503] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:27:23,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120329921] [2023-11-12 02:27:23,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:23,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:23,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:23,420 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:27:23,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:27:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:23,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:27:23,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:23,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:23,575 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:27:23,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:23,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120329921] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:27:23,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:27:23,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-12 02:27:23,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851888275] [2023-11-12 02:27:23,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:27:23,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:27:23,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:23,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:27:23,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:27:23,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 181 [2023-11-12 02:27:23,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 102 flow. Second operand has 7 states, 7 states have (on average 90.28571428571429) internal successors, (632), 7 states have internal predecessors, (632), 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) [2023-11-12 02:27:23,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:23,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 181 [2023-11-12 02:27:23,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:23,724 INFO L124 PetriNetUnfolderBase]: 49/136 cut-off events. [2023-11-12 02:27:23,724 INFO L125 PetriNetUnfolderBase]: For 36/41 co-relation queries the response was YES. [2023-11-12 02:27:23,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 136 events. 49/136 cut-off events. For 36/41 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 373 event pairs, 5 based on Foata normal form. 9/135 useless extension candidates. Maximal degree in co-relation 303. Up to 38 conditions per place. [2023-11-12 02:27:23,726 INFO L140 encePairwiseOnDemand]: 177/181 looper letters, 19 selfloop transitions, 6 changer transitions 0/39 dead transitions. [2023-11-12 02:27:23,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 39 transitions, 184 flow [2023-11-12 02:27:23,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:27:23,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:27:23,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 556 transitions. [2023-11-12 02:27:23,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5119705340699816 [2023-11-12 02:27:23,729 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 556 transitions. [2023-11-12 02:27:23,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 556 transitions. [2023-11-12 02:27:23,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:23,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 556 transitions. [2023-11-12 02:27:23,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 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) [2023-11-12 02:27:23,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 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) [2023-11-12 02:27:23,735 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 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) [2023-11-12 02:27:23,736 INFO L175 Difference]: Start difference. First operand has 30 places, 25 transitions, 102 flow. Second operand 6 states and 556 transitions. [2023-11-12 02:27:23,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 39 transitions, 184 flow [2023-11-12 02:27:23,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 39 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:27:23,738 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 138 flow [2023-11-12 02:27:23,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=138, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2023-11-12 02:27:23,739 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 13 predicate places. [2023-11-12 02:27:23,739 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 138 flow [2023-11-12 02:27:23,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 90.28571428571429) internal successors, (632), 7 states have internal predecessors, (632), 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) [2023-11-12 02:27:23,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:23,740 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:23,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:27:23,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:23,951 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-12 02:27:23,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:23,952 INFO L85 PathProgramCache]: Analyzing trace with hash 534415047, now seen corresponding path program 2 times [2023-11-12 02:27:23,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:23,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275547723] [2023-11-12 02:27:23,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:23,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:24,076 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:24,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:24,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275547723] [2023-11-12 02:27:24,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275547723] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:27:24,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935015825] [2023-11-12 02:27:24,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:27:24,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:24,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:24,078 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:27:24,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:27:24,173 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:27:24,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:27:24,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:27:24,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:24,215 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:24,215 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:27:24,300 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:24,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935015825] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:27:24,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:27:24,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-11-12 02:27:24,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498914568] [2023-11-12 02:27:24,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:27:24,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-12 02:27:24,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:24,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-12 02:27:24,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:27:24,346 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 181 [2023-11-12 02:27:24,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 138 flow. Second operand has 13 states, 13 states have (on average 90.07692307692308) internal successors, (1171), 13 states have internal predecessors, (1171), 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) [2023-11-12 02:27:24,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:24,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 181 [2023-11-12 02:27:24,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:24,472 INFO L124 PetriNetUnfolderBase]: 61/200 cut-off events. [2023-11-12 02:27:24,473 INFO L125 PetriNetUnfolderBase]: For 249/251 co-relation queries the response was YES. [2023-11-12 02:27:24,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 200 events. 61/200 cut-off events. For 249/251 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 573 event pairs, 6 based on Foata normal form. 18/211 useless extension candidates. Maximal degree in co-relation 551. Up to 52 conditions per place. [2023-11-12 02:27:24,475 INFO L140 encePairwiseOnDemand]: 177/181 looper letters, 37 selfloop transitions, 12 changer transitions 0/63 dead transitions. [2023-11-12 02:27:24,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 63 transitions, 372 flow [2023-11-12 02:27:24,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:27:24,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-12 02:27:24,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1111 transitions. [2023-11-12 02:27:24,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5115101289134438 [2023-11-12 02:27:24,480 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1111 transitions. [2023-11-12 02:27:24,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1111 transitions. [2023-11-12 02:27:24,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:24,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1111 transitions. [2023-11-12 02:27:24,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 92.58333333333333) internal successors, (1111), 12 states have internal predecessors, (1111), 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) [2023-11-12 02:27:24,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 181.0) internal successors, (2353), 13 states have internal predecessors, (2353), 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) [2023-11-12 02:27:24,491 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 181.0) internal successors, (2353), 13 states have internal predecessors, (2353), 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) [2023-11-12 02:27:24,492 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 138 flow. Second operand 12 states and 1111 transitions. [2023-11-12 02:27:24,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 63 transitions, 372 flow [2023-11-12 02:27:24,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 63 transitions, 352 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-11-12 02:27:24,495 INFO L231 Difference]: Finished difference. Result has 54 places, 35 transitions, 226 flow [2023-11-12 02:27:24,496 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=226, PETRI_PLACES=54, PETRI_TRANSITIONS=35} [2023-11-12 02:27:24,496 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 30 predicate places. [2023-11-12 02:27:24,497 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 35 transitions, 226 flow [2023-11-12 02:27:24,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 90.07692307692308) internal successors, (1171), 13 states have internal predecessors, (1171), 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) [2023-11-12 02:27:24,498 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:24,498 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:24,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:27:24,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:24,704 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-12 02:27:24,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:24,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1624492231, now seen corresponding path program 3 times [2023-11-12 02:27:24,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:24,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258282043] [2023-11-12 02:27:24,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:24,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:25,011 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:25,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:25,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258282043] [2023-11-12 02:27:25,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258282043] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:27:25,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237678075] [2023-11-12 02:27:25,012 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 02:27:25,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:25,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:25,014 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:27:25,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:27:25,130 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-12 02:27:25,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:27:25,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-12 02:27:25,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:25,234 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:25,234 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:27:25,533 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:25,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237678075] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:27:25,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:27:25,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2023-11-12 02:27:25,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867219473] [2023-11-12 02:27:25,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:27:25,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-12 02:27:25,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:25,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-12 02:27:25,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-12 02:27:25,638 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 181 [2023-11-12 02:27:25,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 35 transitions, 226 flow. Second operand has 25 states, 25 states have (on average 90.04) internal successors, (2251), 25 states have internal predecessors, (2251), 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) [2023-11-12 02:27:25,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:25,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 181 [2023-11-12 02:27:25,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:25,988 INFO L124 PetriNetUnfolderBase]: 109/356 cut-off events. [2023-11-12 02:27:25,988 INFO L125 PetriNetUnfolderBase]: For 1822/1824 co-relation queries the response was YES. [2023-11-12 02:27:25,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1199 conditions, 356 events. 109/356 cut-off events. For 1822/1824 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1006 event pairs, 6 based on Foata normal form. 36/385 useless extension candidates. Maximal degree in co-relation 1181. Up to 100 conditions per place. [2023-11-12 02:27:25,993 INFO L140 encePairwiseOnDemand]: 177/181 looper letters, 73 selfloop transitions, 24 changer transitions 0/111 dead transitions. [2023-11-12 02:27:25,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 111 transitions, 800 flow [2023-11-12 02:27:25,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-12 02:27:25,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-12 02:27:26,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2221 transitions. [2023-11-12 02:27:26,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5112799263351749 [2023-11-12 02:27:26,002 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2221 transitions. [2023-11-12 02:27:26,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2221 transitions. [2023-11-12 02:27:26,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:26,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2221 transitions. [2023-11-12 02:27:26,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 92.54166666666667) internal successors, (2221), 24 states have internal predecessors, (2221), 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) [2023-11-12 02:27:26,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 181.0) internal successors, (4525), 25 states have internal predecessors, (4525), 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) [2023-11-12 02:27:26,024 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 181.0) internal successors, (4525), 25 states have internal predecessors, (4525), 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) [2023-11-12 02:27:26,024 INFO L175 Difference]: Start difference. First operand has 54 places, 35 transitions, 226 flow. Second operand 24 states and 2221 transitions. [2023-11-12 02:27:26,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 111 transitions, 800 flow [2023-11-12 02:27:26,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 111 transitions, 794 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-12 02:27:26,034 INFO L231 Difference]: Finished difference. Result has 87 places, 48 transitions, 452 flow [2023-11-12 02:27:26,034 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=452, PETRI_PLACES=87, PETRI_TRANSITIONS=48} [2023-11-12 02:27:26,036 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 63 predicate places. [2023-11-12 02:27:26,036 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 48 transitions, 452 flow [2023-11-12 02:27:26,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 90.04) internal successors, (2251), 25 states have internal predecessors, (2251), 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) [2023-11-12 02:27:26,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:26,037 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:26,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:27:26,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:26,249 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-12 02:27:26,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:26,250 INFO L85 PathProgramCache]: Analyzing trace with hash -541012793, now seen corresponding path program 4 times [2023-11-12 02:27:26,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:26,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669996539] [2023-11-12 02:27:26,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:26,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:27,009 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:27,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:27,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669996539] [2023-11-12 02:27:27,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669996539] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:27:27,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963965295] [2023-11-12 02:27:27,009 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-12 02:27:27,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:27,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:27,011 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:27:27,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:27:27,149 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-12 02:27:27,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:27:27,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-12 02:27:27,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:27,323 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:27,323 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:27:28,168 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:28,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963965295] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:27:28,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:27:28,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 46 [2023-11-12 02:27:28,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358805902] [2023-11-12 02:27:28,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:27:28,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-11-12 02:27:28,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:28,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-11-12 02:27:28,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2023-11-12 02:27:28,336 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 181 [2023-11-12 02:27:28,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 48 transitions, 452 flow. Second operand has 46 states, 46 states have (on average 90.06521739130434) internal successors, (4143), 46 states have internal predecessors, (4143), 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) [2023-11-12 02:27:28,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:28,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 181 [2023-11-12 02:27:28,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:28,959 INFO L124 PetriNetUnfolderBase]: 283/721 cut-off events. [2023-11-12 02:27:28,960 INFO L125 PetriNetUnfolderBase]: For 13901/13906 co-relation queries the response was YES. [2023-11-12 02:27:28,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2814 conditions, 721 events. 283/721 cut-off events. For 13901/13906 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1836 event pairs, 5 based on Foata normal form. 63/774 useless extension candidates. Maximal degree in co-relation 2783. Up to 272 conditions per place. [2023-11-12 02:27:28,968 INFO L140 encePairwiseOnDemand]: 177/181 looper letters, 136 selfloop transitions, 45 changer transitions 0/195 dead transitions. [2023-11-12 02:27:28,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 195 transitions, 1758 flow [2023-11-12 02:27:28,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-12 02:27:28,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-11-12 02:27:28,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 4162 transitions. [2023-11-12 02:27:28,983 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.510988336402701 [2023-11-12 02:27:28,983 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 4162 transitions. [2023-11-12 02:27:28,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 4162 transitions. [2023-11-12 02:27:28,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:28,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 4162 transitions. [2023-11-12 02:27:28,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 92.4888888888889) internal successors, (4162), 45 states have internal predecessors, (4162), 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) [2023-11-12 02:27:29,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 181.0) internal successors, (8326), 46 states have internal predecessors, (8326), 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) [2023-11-12 02:27:29,018 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 181.0) internal successors, (8326), 46 states have internal predecessors, (8326), 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) [2023-11-12 02:27:29,019 INFO L175 Difference]: Start difference. First operand has 87 places, 48 transitions, 452 flow. Second operand 45 states and 4162 transitions. [2023-11-12 02:27:29,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 195 transitions, 1758 flow [2023-11-12 02:27:29,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 195 transitions, 1740 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-11-12 02:27:29,059 INFO L231 Difference]: Finished difference. Result has 144 places, 70 transitions, 922 flow [2023-11-12 02:27:29,059 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=922, PETRI_PLACES=144, PETRI_TRANSITIONS=70} [2023-11-12 02:27:29,060 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 120 predicate places. [2023-11-12 02:27:29,060 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 70 transitions, 922 flow [2023-11-12 02:27:29,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 90.06521739130434) internal successors, (4143), 46 states have internal predecessors, (4143), 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) [2023-11-12 02:27:29,062 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:29,062 INFO L208 CegarLoopForPetriNet]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:29,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:27:29,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:29,268 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-12 02:27:29,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:29,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1003839401, now seen corresponding path program 5 times [2023-11-12 02:27:29,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:29,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469916727] [2023-11-12 02:27:29,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:29,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:27:29,338 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:27:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:27:29,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:27:29,426 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:27:29,427 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-11-12 02:27:29,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-11-12 02:27:29,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-11-12 02:27:29,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2023-11-12 02:27:29,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2023-11-12 02:27:29,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-11-12 02:27:29,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-11-12 02:27:29,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-11-12 02:27:29,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:27:29,431 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:29,438 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:27:29,438 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:27:29,531 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre6 could not be translated [2023-11-12 02:27:29,542 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-12 02:27:29,543 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-12 02:27:29,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:27:29 BasicIcfg [2023-11-12 02:27:29,558 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:27:29,559 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:27:29,559 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:27:29,559 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:27:29,559 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:27:16" (3/4) ... [2023-11-12 02:27:29,561 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:27:29,562 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:27:29,563 INFO L158 Benchmark]: Toolchain (without parser) took 14050.91ms. Allocated memory was 148.9MB in the beginning and 218.1MB in the end (delta: 69.2MB). Free memory was 109.8MB in the beginning and 65.2MB in the end (delta: 44.5MB). Peak memory consumption was 115.3MB. Max. memory is 16.1GB. [2023-11-12 02:27:29,563 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 148.9MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:27:29,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 708.46ms. Allocated memory is still 148.9MB. Free memory was 109.2MB in the beginning and 89.3MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 02:27:29,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.27ms. Allocated memory is still 148.9MB. Free memory was 89.3MB in the beginning and 86.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:27:29,565 INFO L158 Benchmark]: Boogie Preprocessor took 66.44ms. Allocated memory is still 148.9MB. Free memory was 86.7MB in the beginning and 85.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:27:29,565 INFO L158 Benchmark]: RCFGBuilder took 570.45ms. Allocated memory is still 148.9MB. Free memory was 85.1MB in the beginning and 71.0MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:27:29,565 INFO L158 Benchmark]: TraceAbstraction took 12598.79ms. Allocated memory was 148.9MB in the beginning and 218.1MB in the end (delta: 69.2MB). Free memory was 70.5MB in the beginning and 65.2MB in the end (delta: 5.2MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2023-11-12 02:27:29,566 INFO L158 Benchmark]: Witness Printer took 4.06ms. Allocated memory is still 218.1MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:27:29,567 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 148.9MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 708.46ms. Allocated memory is still 148.9MB. Free memory was 109.2MB in the beginning and 89.3MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.27ms. Allocated memory is still 148.9MB. Free memory was 89.3MB in the beginning and 86.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.44ms. Allocated memory is still 148.9MB. Free memory was 86.7MB in the beginning and 85.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 570.45ms. Allocated memory is still 148.9MB. Free memory was 85.1MB in the beginning and 71.0MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 12598.79ms. Allocated memory was 148.9MB in the beginning and 218.1MB in the end (delta: 69.2MB). Free memory was 70.5MB in the beginning and 65.2MB in the end (delta: 5.2MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. * Witness Printer took 4.06ms. Allocated memory is still 218.1MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 91 PlacesBefore, 24 PlacesAfterwards, 93 TransitionsBefore, 24 TransitionsAfterwards, 1508 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 3734 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1831, independent: 1646, independent conditional: 0, independent unconditional: 1646, dependent: 185, dependent conditional: 0, dependent unconditional: 185, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 883, independent: 851, independent conditional: 0, independent unconditional: 851, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1831, independent: 795, independent conditional: 0, independent unconditional: 795, dependent: 153, dependent conditional: 0, dependent unconditional: 153, unknown: 883, unknown conditional: 0, unknown unconditional: 883] , Statistics on independence cache: Total cache size (in pairs): 74, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 704]: Data race detected [2023-11-12 02:27:29,622 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre6 could not be translated [2023-11-12 02:27:29,630 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-12 02:27:29,630 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-12 02:27:29,665 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre6 could not be translated [2023-11-12 02:27:29,670 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-12 02:27:29,671 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated Data race detected The following path leads to a data race: [L697] 0 pthread_mutex_t lock; [L698] 0 pthread_cond_t cond; [L699] 0 int x; [L700] 0 _Bool x_set = 0; [L711] 0 pthread_t t; [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [cond={4:0}, lock={3:0}, t={7:0}, x=0, x_set=0] [L713] 0 int i = 0; VAL [cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=1, lock={3:0}, t={7:0}, x=0, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=2, lock={3:0}, t={7:0}, x=1, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=3, lock={3:0}, t={7:0}, x=2, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=4, lock={3:0}, t={7:0}, x=3, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=5, lock={3:0}, t={7:0}, x=4, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=6, lock={3:0}, t={7:0}, x=5, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=7, lock={3:0}, t={7:0}, x=6, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=8, lock={3:0}, t={7:0}, x=7, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=9, lock={3:0}, t={7:0}, x=8, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=10, lock={3:0}, t={7:0}, x=9, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=11, lock={3:0}, t={7:0}, x=10, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=12, lock={3:0}, t={7:0}, x=11, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=13, lock={3:0}, t={7:0}, x=12, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=14, lock={3:0}, t={7:0}, x=13, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=15, lock={3:0}, t={7:0}, x=14, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=16, lock={3:0}, t={7:0}, x=15, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=17, lock={3:0}, t={7:0}, x=16, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=18, lock={3:0}, t={7:0}, x=17, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=19, lock={3:0}, t={7:0}, x=18, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=20, lock={3:0}, t={7:0}, x=19, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=21, lock={3:0}, t={7:0}, x=20, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=22, lock={3:0}, t={7:0}, x=21, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=23, lock={3:0}, t={7:0}, x=22, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=24, lock={3:0}, t={7:0}, x=23, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=25, lock={3:0}, t={7:0}, x=24, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=26, lock={3:0}, t={7:0}, x=25, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=27, lock={3:0}, t={7:0}, x=26, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=28, lock={3:0}, t={7:0}, x=27, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=29, lock={3:0}, t={7:0}, x=28, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=30, lock={3:0}, t={7:0}, x=29, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=31, lock={3:0}, t={7:0}, x=30, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=32, lock={3:0}, t={7:0}, x=31, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=33, lock={3:0}, t={7:0}, x=32, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=34, lock={3:0}, t={7:0}, x=33, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=35, lock={3:0}, t={7:0}, x=34, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=36, lock={3:0}, t={7:0}, x=35, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=37, lock={3:0}, t={7:0}, x=36, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=38, lock={3:0}, t={7:0}, x=37, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=39, lock={3:0}, t={7:0}, x=38, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=40, lock={3:0}, t={7:0}, x=39, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=41, lock={3:0}, t={7:0}, x=40, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=42, lock={3:0}, t={7:0}, x=41, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42, x_set=0] [L704] 1 !x_set VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=42, x_set=0] [L713] COND FALSE 0 !(i <= 42) [L715] 0 x_set = 1 VAL [cond={4:0}, lock={3:0}, t={7:0}, x=42, x_set=1] [L704] 1 !x_set VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=42, x_set=1] Now there is a data race on ~x_set~0 between C: x_set = 1 [715] and C: !x_set [704] - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 120 locations, 8 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: 12.3s, OverallIterations: 12, TraceHistogramMax: 43, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 800 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 700 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1062 IncrementalHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 27 mSDtfsCounter, 1062 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 351 GetRequests, 257 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=922occurred in iteration=11, InterpolantAutomatonStates: 107, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 482 NumberOfCodeBlocks, 482 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 468 ConstructedInterpolants, 0 QuantifiedInterpolants, 1238 SizeOfPredicates, 0 NumberOfNonLiveVariables, 940 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 20 InterpolantComputations, 7 PerfectInterpolantSequences, 1/2651 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-12 02:27:29,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642ae066-b959-4461-9310-bfc234eca313/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE