./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 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_5077f219-f656-4b41-8418-3ce787238d7e/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5077f219-f656-4b41-8418-3ce787238d7e/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5077f219-f656-4b41-8418-3ce787238d7e/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5077f219-f656-4b41-8418-3ce787238d7e/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5077f219-f656-4b41-8418-3ce787238d7e/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5077f219-f656-4b41-8418-3ce787238d7e/bin/uautomizer-verify-zZY32mL2XJ --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 72289b7b84ec29dc48aff6fa2f8d521998f594af518139867a01f104107e1865 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:33:51,926 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:33:52,058 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5077f219-f656-4b41-8418-3ce787238d7e/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 22:33:52,069 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:33:52,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:33:52,113 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:33:52,114 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:33:52,114 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:33:52,115 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:33:52,121 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:33:52,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:33:52,123 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:33:52,124 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:33:52,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:33:52,126 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:33:52,127 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:33:52,127 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:33:52,128 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:33:52,128 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:33:52,129 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:33:52,129 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:33:52,130 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:33:52,131 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 22:33:52,131 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:33:52,132 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:33:52,132 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:33:52,133 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:33:52,134 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:33:52,134 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:33:52,135 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:33:52,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:33:52,137 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:33:52,137 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:33:52,137 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:33:52,137 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:33:52,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:33:52,138 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:33:52,138 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:33:52,138 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:33:52,139 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:33:52,139 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:33:52,140 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_5077f219-f656-4b41-8418-3ce787238d7e/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5077f219-f656-4b41-8418-3ce787238d7e/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72289b7b84ec29dc48aff6fa2f8d521998f594af518139867a01f104107e1865 [2023-11-23 22:33:52,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:33:52,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:33:52,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:33:52,548 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:33:52,548 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:33:52,550 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5077f219-f656-4b41-8418-3ce787238d7e/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2023-11-23 22:33:55,880 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:33:56,210 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:33:56,211 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5077f219-f656-4b41-8418-3ce787238d7e/sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2023-11-23 22:33:56,230 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5077f219-f656-4b41-8418-3ce787238d7e/bin/uautomizer-verify-zZY32mL2XJ/data/71267ad77/2bbfc57adfbd450c8e3becc6080dbadc/FLAG69419399b [2023-11-23 22:33:56,245 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5077f219-f656-4b41-8418-3ce787238d7e/bin/uautomizer-verify-zZY32mL2XJ/data/71267ad77/2bbfc57adfbd450c8e3becc6080dbadc [2023-11-23 22:33:56,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:33:56,250 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:33:56,252 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:33:56,252 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:33:56,258 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:33:56,259 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:33:56" (1/1) ... [2023-11-23 22:33:56,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1149575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:56, skipping insertion in model container [2023-11-23 22:33:56,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:33:56" (1/1) ... [2023-11-23 22:33:56,309 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:33:56,515 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 22:33:56,704 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:33:56,720 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:33:56,741 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 22:33:56,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:33:56,818 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:33:56,818 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:33:56,819 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:33:56,827 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:33:56,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:56 WrapperNode [2023-11-23 22:33:56,828 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:33:56,830 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:33:56,830 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:33:56,830 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:33:56,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:56" (1/1) ... [2023-11-23 22:33:56,878 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:56" (1/1) ... [2023-11-23 22:33:56,915 INFO L138 Inliner]: procedures = 174, calls = 33, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 120 [2023-11-23 22:33:56,915 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:33:56,916 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:33:56,916 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:33:56,916 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:33:56,927 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:56" (1/1) ... [2023-11-23 22:33:56,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:56" (1/1) ... [2023-11-23 22:33:56,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:56" (1/1) ... [2023-11-23 22:33:56,945 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:56" (1/1) ... [2023-11-23 22:33:56,951 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:56" (1/1) ... [2023-11-23 22:33:56,965 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:56" (1/1) ... [2023-11-23 22:33:56,967 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:56" (1/1) ... [2023-11-23 22:33:56,976 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:56" (1/1) ... [2023-11-23 22:33:56,980 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:33:56,981 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:33:56,981 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:33:56,982 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:33:56,982 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:56" (1/1) ... [2023-11-23 22:33:56,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:33:57,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5077f219-f656-4b41-8418-3ce787238d7e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:33:57,038 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5077f219-f656-4b41-8418-3ce787238d7e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:33:57,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5077f219-f656-4b41-8418-3ce787238d7e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:33:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-23 22:33:57,081 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-23 22:33:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 22:33:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 22:33:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:33:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:33:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:33:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 22:33:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 22:33:57,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:33:57,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:33:57,087 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 22:33:57,231 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:33:57,233 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:33:57,495 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:33:57,609 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:33:57,610 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 22:33:57,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:33:57 BoogieIcfgContainer [2023-11-23 22:33:57,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:33:57,614 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:33:57,614 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:33:57,618 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:33:57,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:33:56" (1/3) ... [2023-11-23 22:33:57,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147411d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:33:57, skipping insertion in model container [2023-11-23 22:33:57,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:56" (2/3) ... [2023-11-23 22:33:57,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147411d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:33:57, skipping insertion in model container [2023-11-23 22:33:57,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:33:57" (3/3) ... [2023-11-23 22:33:57,621 INFO L112 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2023-11-23 22:33:57,631 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 22:33:57,660 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:33:57,661 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-11-23 22:33:57,661 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 22:33:57,720 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 22:33:57,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 75 transitions, 154 flow [2023-11-23 22:33:57,804 INFO L124 PetriNetUnfolderBase]: 2/74 cut-off events. [2023-11-23 22:33:57,804 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:33:57,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 2/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 84 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2023-11-23 22:33:57,810 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 75 transitions, 154 flow [2023-11-23 22:33:57,815 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 74 transitions, 151 flow [2023-11-23 22:33:57,827 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:33:57,835 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;@40f3aa66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:33:57,835 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-23 22:33:57,844 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:33:57,844 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2023-11-23 22:33:57,844 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:33:57,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:33:57,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:57,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2023-11-23 22:33:57,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:57,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1755112197, now seen corresponding path program 1 times [2023-11-23 22:33:57,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:57,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295816145] [2023-11-23 22:33:57,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:57,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:58,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:58,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:58,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295816145] [2023-11-23 22:33:58,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295816145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:58,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:33:58,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:33:58,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341533536] [2023-11-23 22:33:58,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:58,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:33:58,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:58,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:33:58,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:33:58,131 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 75 [2023-11-23 22:33:58,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 74 transitions, 151 flow. Second operand has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 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) [2023-11-23 22:33:58,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:33:58,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 75 [2023-11-23 22:33:58,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:33:58,242 INFO L124 PetriNetUnfolderBase]: 14/122 cut-off events. [2023-11-23 22:33:58,242 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-23 22:33:58,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 122 events. 14/122 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 326 event pairs, 14 based on Foata normal form. 6/118 useless extension candidates. Maximal degree in co-relation 142. Up to 39 conditions per place. [2023-11-23 22:33:58,245 INFO L140 encePairwiseOnDemand]: 60/75 looper letters, 9 selfloop transitions, 0 changer transitions 3/56 dead transitions. [2023-11-23 22:33:58,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 56 transitions, 135 flow [2023-11-23 22:33:58,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:33:58,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-23 22:33:58,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 123 transitions. [2023-11-23 22:33:58,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.82 [2023-11-23 22:33:58,261 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 123 transitions. [2023-11-23 22:33:58,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 123 transitions. [2023-11-23 22:33:58,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:33:58,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 123 transitions. [2023-11-23 22:33:58,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 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) [2023-11-23 22:33:58,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2023-11-23 22:33:58,274 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2023-11-23 22:33:58,276 INFO L175 Difference]: Start difference. First operand has 76 places, 74 transitions, 151 flow. Second operand 2 states and 123 transitions. [2023-11-23 22:33:58,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 56 transitions, 135 flow [2023-11-23 22:33:58,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 56 transitions, 134 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:33:58,284 INFO L231 Difference]: Finished difference. Result has 60 places, 53 transitions, 108 flow [2023-11-23 22:33:58,286 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=108, PETRI_PLACES=60, PETRI_TRANSITIONS=53} [2023-11-23 22:33:58,290 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -16 predicate places. [2023-11-23 22:33:58,291 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 53 transitions, 108 flow [2023-11-23 22:33:58,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 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) [2023-11-23 22:33:58,291 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:33:58,292 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:58,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:33:58,292 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2023-11-23 22:33:58,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:58,293 INFO L85 PathProgramCache]: Analyzing trace with hash 981226506, now seen corresponding path program 1 times [2023-11-23 22:33:58,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:58,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119698188] [2023-11-23 22:33:58,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:58,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:58,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:58,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:58,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119698188] [2023-11-23 22:33:58,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119698188] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:58,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:33:58,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:33:58,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464513933] [2023-11-23 22:33:58,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:58,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:33:58,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:58,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:33:58,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:33:58,414 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 75 [2023-11-23 22:33:58,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 53 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2023-11-23 22:33:58,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:33:58,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 75 [2023-11-23 22:33:58,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:33:58,591 INFO L124 PetriNetUnfolderBase]: 50/242 cut-off events. [2023-11-23 22:33:58,592 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:33:58,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 242 events. 50/242 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 976 event pairs, 25 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 360. Up to 85 conditions per place. [2023-11-23 22:33:58,597 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 14 selfloop transitions, 3 changer transitions 6/62 dead transitions. [2023-11-23 22:33:58,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 62 transitions, 172 flow [2023-11-23 22:33:58,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:33:58,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:33:58,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 156 transitions. [2023-11-23 22:33:58,607 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6933333333333334 [2023-11-23 22:33:58,608 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 156 transitions. [2023-11-23 22:33:58,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 156 transitions. [2023-11-23 22:33:58,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:33:58,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 156 transitions. [2023-11-23 22:33:58,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2023-11-23 22:33:58,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2023-11-23 22:33:58,618 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2023-11-23 22:33:58,618 INFO L175 Difference]: Start difference. First operand has 60 places, 53 transitions, 108 flow. Second operand 3 states and 156 transitions. [2023-11-23 22:33:58,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 62 transitions, 172 flow [2023-11-23 22:33:58,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 62 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:33:58,624 INFO L231 Difference]: Finished difference. Result has 60 places, 53 transitions, 123 flow [2023-11-23 22:33:58,624 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=60, PETRI_TRANSITIONS=53} [2023-11-23 22:33:58,625 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -16 predicate places. [2023-11-23 22:33:58,626 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 53 transitions, 123 flow [2023-11-23 22:33:58,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2023-11-23 22:33:58,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:33:58,630 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:58,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:33:58,631 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2023-11-23 22:33:58,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:58,636 INFO L85 PathProgramCache]: Analyzing trace with hash 988301431, now seen corresponding path program 1 times [2023-11-23 22:33:58,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:58,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729087162] [2023-11-23 22:33:58,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:58,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:58,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:58,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:58,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729087162] [2023-11-23 22:33:58,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729087162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:58,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:33:58,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:33:58,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531128958] [2023-11-23 22:33:58,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:58,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:33:58,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:58,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:33:58,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:33:58,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 75 [2023-11-23 22:33:58,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 53 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2023-11-23 22:33:58,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:33:58,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 75 [2023-11-23 22:33:58,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:33:58,955 INFO L124 PetriNetUnfolderBase]: 2/103 cut-off events. [2023-11-23 22:33:58,955 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2023-11-23 22:33:58,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 103 events. 2/103 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 240 event pairs, 0 based on Foata normal form. 6/104 useless extension candidates. Maximal degree in co-relation 147. Up to 19 conditions per place. [2023-11-23 22:33:58,956 INFO L140 encePairwiseOnDemand]: 71/75 looper letters, 9 selfloop transitions, 3 changer transitions 1/54 dead transitions. [2023-11-23 22:33:58,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 54 transitions, 151 flow [2023-11-23 22:33:58,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:33:58,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-23 22:33:58,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 204 transitions. [2023-11-23 22:33:58,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.68 [2023-11-23 22:33:58,958 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 204 transitions. [2023-11-23 22:33:58,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 204 transitions. [2023-11-23 22:33:58,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:33:58,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 204 transitions. [2023-11-23 22:33:58,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 51.0) internal successors, (204), 4 states have internal predecessors, (204), 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) [2023-11-23 22:33:58,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:58,962 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:58,962 INFO L175 Difference]: Start difference. First operand has 60 places, 53 transitions, 123 flow. Second operand 4 states and 204 transitions. [2023-11-23 22:33:58,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 54 transitions, 151 flow [2023-11-23 22:33:58,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 54 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:33:58,965 INFO L231 Difference]: Finished difference. Result has 62 places, 53 transitions, 134 flow [2023-11-23 22:33:58,965 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=134, PETRI_PLACES=62, PETRI_TRANSITIONS=53} [2023-11-23 22:33:58,966 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -14 predicate places. [2023-11-23 22:33:58,966 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 53 transitions, 134 flow [2023-11-23 22:33:58,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2023-11-23 22:33:58,967 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:33:58,967 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:58,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:33:58,968 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2023-11-23 22:33:58,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:58,968 INFO L85 PathProgramCache]: Analyzing trace with hash -655718733, now seen corresponding path program 2 times [2023-11-23 22:33:58,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:58,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966758041] [2023-11-23 22:33:58,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:58,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:59,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:59,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:59,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966758041] [2023-11-23 22:33:59,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966758041] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:59,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:33:59,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:33:59,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597509033] [2023-11-23 22:33:59,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:59,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:33:59,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:59,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:33:59,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:33:59,055 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 75 [2023-11-23 22:33:59,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 53 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2023-11-23 22:33:59,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:33:59,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 75 [2023-11-23 22:33:59,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:33:59,093 INFO L124 PetriNetUnfolderBase]: 0/50 cut-off events. [2023-11-23 22:33:59,093 INFO L125 PetriNetUnfolderBase]: For 10/12 co-relation queries the response was YES. [2023-11-23 22:33:59,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 50 events. 0/50 cut-off events. For 10/12 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 15 event pairs, 0 based on Foata normal form. 1/50 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2023-11-23 22:33:59,093 INFO L140 encePairwiseOnDemand]: 73/75 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2023-11-23 22:33:59,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 50 transitions, 142 flow [2023-11-23 22:33:59,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:33:59,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:33:59,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 155 transitions. [2023-11-23 22:33:59,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6888888888888889 [2023-11-23 22:33:59,095 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 155 transitions. [2023-11-23 22:33:59,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 155 transitions. [2023-11-23 22:33:59,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:33:59,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 155 transitions. [2023-11-23 22:33:59,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2023-11-23 22:33:59,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2023-11-23 22:33:59,098 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2023-11-23 22:33:59,099 INFO L175 Difference]: Start difference. First operand has 62 places, 53 transitions, 134 flow. Second operand 3 states and 155 transitions. [2023-11-23 22:33:59,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 50 transitions, 142 flow [2023-11-23 22:33:59,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 50 transitions, 131 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-11-23 22:33:59,101 INFO L231 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2023-11-23 22:33:59,101 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2023-11-23 22:33:59,102 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -17 predicate places. [2023-11-23 22:33:59,102 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 0 transitions, 0 flow [2023-11-23 22:33:59,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2023-11-23 22:33:59,105 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 20 remaining) [2023-11-23 22:33:59,106 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2023-11-23 22:33:59,106 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2023-11-23 22:33:59,106 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2023-11-23 22:33:59,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2023-11-23 22:33:59,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2023-11-23 22:33:59,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2023-11-23 22:33:59,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2023-11-23 22:33:59,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2023-11-23 22:33:59,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2023-11-23 22:33:59,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2023-11-23 22:33:59,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2023-11-23 22:33:59,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2023-11-23 22:33:59,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2023-11-23 22:33:59,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 20 remaining) [2023-11-23 22:33:59,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2023-11-23 22:33:59,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2023-11-23 22:33:59,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2023-11-23 22:33:59,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2023-11-23 22:33:59,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2023-11-23 22:33:59,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:33:59,111 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-11-23 22:33:59,118 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-23 22:33:59,118 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:33:59,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:33:59 BasicIcfg [2023-11-23 22:33:59,125 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:33:59,126 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:33:59,126 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:33:59,126 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:33:59,127 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:33:57" (3/4) ... [2023-11-23 22:33:59,129 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 22:33:59,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2023-11-23 22:33:59,139 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 69 nodes and edges [2023-11-23 22:33:59,140 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-23 22:33:59,140 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-23 22:33:59,141 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 22:33:59,242 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5077f219-f656-4b41-8418-3ce787238d7e/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 22:33:59,242 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5077f219-f656-4b41-8418-3ce787238d7e/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 22:33:59,243 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:33:59,243 INFO L158 Benchmark]: Toolchain (without parser) took 2993.43ms. Allocated memory was 144.7MB in the beginning and 192.9MB in the end (delta: 48.2MB). Free memory was 103.4MB in the beginning and 152.0MB in the end (delta: -48.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:33:59,244 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 144.7MB. Free memory is still 115.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:33:59,244 INFO L158 Benchmark]: CACSL2BoogieTranslator took 577.13ms. Allocated memory is still 144.7MB. Free memory was 102.9MB in the beginning and 82.9MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 22:33:59,245 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.59ms. Allocated memory is still 144.7MB. Free memory was 82.4MB in the beginning and 80.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:33:59,245 INFO L158 Benchmark]: Boogie Preprocessor took 64.30ms. Allocated memory is still 144.7MB. Free memory was 80.3MB in the beginning and 79.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:33:59,246 INFO L158 Benchmark]: RCFGBuilder took 630.74ms. Allocated memory is still 144.7MB. Free memory was 79.2MB in the beginning and 56.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-23 22:33:59,246 INFO L158 Benchmark]: TraceAbstraction took 1510.94ms. Allocated memory was 144.7MB in the beginning and 192.9MB in the end (delta: 48.2MB). Free memory was 55.1MB in the beginning and 157.2MB in the end (delta: -102.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 22:33:59,246 INFO L158 Benchmark]: Witness Printer took 116.99ms. Allocated memory is still 192.9MB. Free memory was 157.2MB in the beginning and 152.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 22:33:59,249 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 144.7MB. Free memory is still 115.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 577.13ms. Allocated memory is still 144.7MB. Free memory was 102.9MB in the beginning and 82.9MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.59ms. Allocated memory is still 144.7MB. Free memory was 82.4MB in the beginning and 80.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.30ms. Allocated memory is still 144.7MB. Free memory was 80.3MB in the beginning and 79.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 630.74ms. Allocated memory is still 144.7MB. Free memory was 79.2MB in the beginning and 56.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1510.94ms. Allocated memory was 144.7MB in the beginning and 192.9MB in the end (delta: 48.2MB). Free memory was 55.1MB in the beginning and 157.2MB in the end (delta: -102.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 116.99ms. Allocated memory is still 192.9MB. Free memory was 157.2MB in the beginning and 152.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 715]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 736]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 740]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 743]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 91 locations, 20 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: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 81 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 1 mSDtfsCounter, 81 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=151occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 158 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-23 22:33:59,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5077f219-f656-4b41-8418-3ce787238d7e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE