./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 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_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx --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 6a6d4c6573ed55a0a96a38de6d1424f0a577970a6c88cea50d5cb9a315d791fd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:03:45,196 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:03:45,318 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 21:03:45,324 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:03:45,330 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:03:45,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:03:45,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:03:45,370 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:03:45,372 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:03:45,373 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:03:45,374 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:03:45,375 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:03:45,375 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:03:45,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:03:45,377 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:03:45,377 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:03:45,378 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:03:45,378 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:03:45,379 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:03:45,379 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:03:45,380 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:03:45,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:03:45,383 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 21:03:45,383 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:03:45,384 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:03:45,384 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:03:45,385 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:03:45,385 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:03:45,386 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:03:45,386 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:03:45,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:03:45,387 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:03:45,388 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:03:45,388 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:03:45,388 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:03:45,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:03:45,389 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:03:45,389 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:03:45,389 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:03:45,390 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:03:45,390 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:03:45,390 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_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a6d4c6573ed55a0a96a38de6d1424f0a577970a6c88cea50d5cb9a315d791fd [2023-11-21 21:03:45,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:03:45,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:03:45,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:03:45,699 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:03:45,699 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:03:45,701 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i [2023-11-21 21:03:48,931 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:03:49,301 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:03:49,301 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i [2023-11-21 21:03:49,320 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/data/cf6de50a0/b2c4c90161cf41fea61099f39acd5232/FLAG8133f763c [2023-11-21 21:03:49,336 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/data/cf6de50a0/b2c4c90161cf41fea61099f39acd5232 [2023-11-21 21:03:49,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:03:49,340 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:03:49,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:03:49,342 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:03:49,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:03:49,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:03:49" (1/1) ... [2023-11-21 21:03:49,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36994bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:49, skipping insertion in model container [2023-11-21 21:03:49,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:03:49" (1/1) ... [2023-11-21 21:03:49,403 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:03:49,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:03:49,912 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:03:49,992 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:03:50,035 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:03:50,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:50 WrapperNode [2023-11-21 21:03:50,035 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:03:50,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:03:50,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:03:50,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:03:50,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:50" (1/1) ... [2023-11-21 21:03:50,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:50" (1/1) ... [2023-11-21 21:03:50,084 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2023-11-21 21:03:50,084 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:03:50,085 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:03:50,085 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:03:50,085 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:03:50,103 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:50" (1/1) ... [2023-11-21 21:03:50,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:50" (1/1) ... [2023-11-21 21:03:50,107 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:50" (1/1) ... [2023-11-21 21:03:50,107 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:50" (1/1) ... [2023-11-21 21:03:50,115 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:50" (1/1) ... [2023-11-21 21:03:50,119 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:50" (1/1) ... [2023-11-21 21:03:50,121 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:50" (1/1) ... [2023-11-21 21:03:50,123 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:50" (1/1) ... [2023-11-21 21:03:50,125 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:03:50,127 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:03:50,127 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:03:50,127 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:03:50,128 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:50" (1/1) ... [2023-11-21 21:03:50,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:03:50,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:03:50,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:03:50,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:03:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 21:03:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 21:03:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:03:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:03:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-21 21:03:50,213 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-21 21:03:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:03:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 21:03:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:03:50,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:03:50,215 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 21:03:50,360 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:03:50,362 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:03:50,515 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:03:50,544 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:03:50,544 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 21:03:50,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:50 BoogieIcfgContainer [2023-11-21 21:03:50,547 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:03:50,549 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:03:50,549 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:03:50,553 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:03:50,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:03:49" (1/3) ... [2023-11-21 21:03:50,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2179f600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:03:50, skipping insertion in model container [2023-11-21 21:03:50,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:50" (2/3) ... [2023-11-21 21:03:50,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2179f600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:03:50, skipping insertion in model container [2023-11-21 21:03:50,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:50" (3/3) ... [2023-11-21 21:03:50,557 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_02-idx_nr.i [2023-11-21 21:03:50,567 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 21:03:50,579 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:03:50,579 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-21 21:03:50,579 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 21:03:50,630 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 21:03:50,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 64 transitions, 132 flow [2023-11-21 21:03:50,719 INFO L124 PetriNetUnfolderBase]: 2/63 cut-off events. [2023-11-21 21:03:50,720 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 21:03:50,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 63 events. 2/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2023-11-21 21:03:50,724 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 64 transitions, 132 flow [2023-11-21 21:03:50,730 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 63 transitions, 129 flow [2023-11-21 21:03:50,741 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:03:50,748 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;@74244e46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:03:50,749 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-21 21:03:50,761 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 21:03:50,761 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2023-11-21 21:03:50,762 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 21:03:50,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:03:50,763 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] [2023-11-21 21:03:50,763 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-21 21:03:50,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:50,769 INFO L85 PathProgramCache]: Analyzing trace with hash -287097778, now seen corresponding path program 1 times [2023-11-21 21:03:50,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:50,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036098897] [2023-11-21 21:03:50,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:50,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:51,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:03:51,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:03:51,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036098897] [2023-11-21 21:03:51,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036098897] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:03:51,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:03:51,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 21:03:51,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155619414] [2023-11-21 21:03:51,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:03:51,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:03:51,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:03:51,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:03:51,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:03:51,164 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 64 [2023-11-21 21:03:51,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2023-11-21 21:03:51,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:03:51,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 64 [2023-11-21 21:03:51,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:03:51,300 INFO L124 PetriNetUnfolderBase]: 7/123 cut-off events. [2023-11-21 21:03:51,301 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 21:03:51,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 123 events. 7/123 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 251 event pairs, 6 based on Foata normal form. 1/111 useless extension candidates. Maximal degree in co-relation 115. Up to 24 conditions per place. [2023-11-21 21:03:51,307 INFO L140 encePairwiseOnDemand]: 60/64 looper letters, 10 selfloop transitions, 2 changer transitions 0/63 dead transitions. [2023-11-21 21:03:51,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 63 transitions, 153 flow [2023-11-21 21:03:51,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:03:51,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:03:51,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 171 transitions. [2023-11-21 21:03:51,326 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.890625 [2023-11-21 21:03:51,327 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 171 transitions. [2023-11-21 21:03:51,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 171 transitions. [2023-11-21 21:03:51,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:03:51,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 171 transitions. [2023-11-21 21:03:51,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2023-11-21 21:03:51,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-21 21:03:51,341 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-21 21:03:51,343 INFO L175 Difference]: Start difference. First operand has 65 places, 63 transitions, 129 flow. Second operand 3 states and 171 transitions. [2023-11-21 21:03:51,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 63 transitions, 153 flow [2023-11-21 21:03:51,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 63 transitions, 152 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 21:03:51,352 INFO L231 Difference]: Finished difference. Result has 67 places, 63 transitions, 138 flow [2023-11-21 21:03:51,354 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=67, PETRI_TRANSITIONS=63} [2023-11-21 21:03:51,358 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 2 predicate places. [2023-11-21 21:03:51,359 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 63 transitions, 138 flow [2023-11-21 21:03:51,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2023-11-21 21:03:51,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:03:51,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:03:51,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:03:51,361 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-21 21:03:51,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:51,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1821033889, now seen corresponding path program 1 times [2023-11-21 21:03:51,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:51,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629843522] [2023-11-21 21:03:51,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:51,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:51,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:03:51,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:03:51,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629843522] [2023-11-21 21:03:51,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629843522] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:03:51,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489655785] [2023-11-21 21:03:51,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:51,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:03:51,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:03:51,570 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:03:51,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 21:03:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:51,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 21:03:51,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:03:51,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 21:03:51,725 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 21:03:51,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489655785] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:03:51,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 21:03:51,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-21 21:03:51,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400944839] [2023-11-21 21:03:51,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:03:51,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:03:51,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:03:51,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:03:51,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:03:51,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 64 [2023-11-21 21:03:51,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 63 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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) [2023-11-21 21:03:51,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:03:51,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 64 [2023-11-21 21:03:51,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:03:51,836 INFO L124 PetriNetUnfolderBase]: 32/216 cut-off events. [2023-11-21 21:03:51,837 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 21:03:51,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 216 events. 32/216 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 924 event pairs, 13 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 286. Up to 44 conditions per place. [2023-11-21 21:03:51,841 INFO L140 encePairwiseOnDemand]: 56/64 looper letters, 17 selfloop transitions, 6 changer transitions 0/73 dead transitions. [2023-11-21 21:03:51,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 73 transitions, 204 flow [2023-11-21 21:03:51,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:03:51,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:03:51,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2023-11-21 21:03:51,844 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9114583333333334 [2023-11-21 21:03:51,844 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 175 transitions. [2023-11-21 21:03:51,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 175 transitions. [2023-11-21 21:03:51,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:03:51,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 175 transitions. [2023-11-21 21:03:51,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2023-11-21 21:03:51,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-21 21:03:51,849 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-21 21:03:51,850 INFO L175 Difference]: Start difference. First operand has 67 places, 63 transitions, 138 flow. Second operand 3 states and 175 transitions. [2023-11-21 21:03:51,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 73 transitions, 204 flow [2023-11-21 21:03:51,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 73 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 21:03:51,854 INFO L231 Difference]: Finished difference. Result has 70 places, 69 transitions, 188 flow [2023-11-21 21:03:51,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=70, PETRI_TRANSITIONS=69} [2023-11-21 21:03:51,855 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 5 predicate places. [2023-11-21 21:03:51,856 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 69 transitions, 188 flow [2023-11-21 21:03:51,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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) [2023-11-21 21:03:51,856 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:03:51,856 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] [2023-11-21 21:03:51,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 21:03:52,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:03:52,072 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-21 21:03:52,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:52,073 INFO L85 PathProgramCache]: Analyzing trace with hash -207878463, now seen corresponding path program 1 times [2023-11-21 21:03:52,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:52,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404363395] [2023-11-21 21:03:52,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:52,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:52,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:03:52,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:03:52,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404363395] [2023-11-21 21:03:52,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404363395] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:03:52,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505897657] [2023-11-21 21:03:52,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:52,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:03:52,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:03:52,279 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:03:52,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 21:03:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:52,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 21:03:52,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:03:52,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 21:03:52,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 21:03:52,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505897657] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:03:52,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 21:03:52,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-21 21:03:52,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534812113] [2023-11-21 21:03:52,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:03:52,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:03:52,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:03:52,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:03:52,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:03:52,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 64 [2023-11-21 21:03:52,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 69 transitions, 188 flow. Second operand has 3 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) [2023-11-21 21:03:52,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:03:52,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 64 [2023-11-21 21:03:52,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:03:52,527 INFO L124 PetriNetUnfolderBase]: 47/282 cut-off events. [2023-11-21 21:03:52,527 INFO L125 PetriNetUnfolderBase]: For 89/94 co-relation queries the response was YES. [2023-11-21 21:03:52,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 282 events. 47/282 cut-off events. For 89/94 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1375 event pairs, 21 based on Foata normal form. 3/266 useless extension candidates. Maximal degree in co-relation 463. Up to 86 conditions per place. [2023-11-21 21:03:52,531 INFO L140 encePairwiseOnDemand]: 58/64 looper letters, 16 selfloop transitions, 7 changer transitions 1/76 dead transitions. [2023-11-21 21:03:52,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 76 transitions, 260 flow [2023-11-21 21:03:52,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:03:52,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:03:52,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 170 transitions. [2023-11-21 21:03:52,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8854166666666666 [2023-11-21 21:03:52,534 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 170 transitions. [2023-11-21 21:03:52,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 170 transitions. [2023-11-21 21:03:52,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:03:52,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 170 transitions. [2023-11-21 21:03:52,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2023-11-21 21:03:52,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-21 21:03:52,539 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-21 21:03:52,539 INFO L175 Difference]: Start difference. First operand has 70 places, 69 transitions, 188 flow. Second operand 3 states and 170 transitions. [2023-11-21 21:03:52,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 76 transitions, 260 flow [2023-11-21 21:03:52,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 76 transitions, 244 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:03:52,544 INFO L231 Difference]: Finished difference. Result has 72 places, 74 transitions, 232 flow [2023-11-21 21:03:52,544 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=72, PETRI_TRANSITIONS=74} [2023-11-21 21:03:52,545 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 7 predicate places. [2023-11-21 21:03:52,546 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 74 transitions, 232 flow [2023-11-21 21:03:52,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2023-11-21 21:03:52,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:03:52,547 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:03:52,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 21:03:52,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:03:52,769 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-21 21:03:52,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:52,770 INFO L85 PathProgramCache]: Analyzing trace with hash 891593961, now seen corresponding path program 1 times [2023-11-21 21:03:52,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:52,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069880037] [2023-11-21 21:03:52,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:52,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:52,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:03:52,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:03:52,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069880037] [2023-11-21 21:03:52,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069880037] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:03:52,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983177080] [2023-11-21 21:03:52,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:52,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:03:52,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:03:52,898 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:03:52,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 21:03:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:52,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 21:03:52,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:03:52,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 21:03:52,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 21:03:52,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983177080] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:03:52,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 21:03:52,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-21 21:03:52,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118568979] [2023-11-21 21:03:52,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:03:52,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:03:52,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:03:52,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:03:52,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:03:53,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 64 [2023-11-21 21:03:53,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 74 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2023-11-21 21:03:53,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:03:53,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 64 [2023-11-21 21:03:53,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:03:53,103 INFO L124 PetriNetUnfolderBase]: 66/355 cut-off events. [2023-11-21 21:03:53,104 INFO L125 PetriNetUnfolderBase]: For 219/227 co-relation queries the response was YES. [2023-11-21 21:03:53,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 698 conditions, 355 events. 66/355 cut-off events. For 219/227 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1893 event pairs, 25 based on Foata normal form. 2/339 useless extension candidates. Maximal degree in co-relation 668. Up to 115 conditions per place. [2023-11-21 21:03:53,108 INFO L140 encePairwiseOnDemand]: 58/64 looper letters, 17 selfloop transitions, 7 changer transitions 7/81 dead transitions. [2023-11-21 21:03:53,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 81 transitions, 318 flow [2023-11-21 21:03:53,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:03:53,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:03:53,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2023-11-21 21:03:53,110 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8645833333333334 [2023-11-21 21:03:53,110 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 166 transitions. [2023-11-21 21:03:53,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 166 transitions. [2023-11-21 21:03:53,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:03:53,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 166 transitions. [2023-11-21 21:03:53,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2023-11-21 21:03:53,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-21 21:03:53,113 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-21 21:03:53,113 INFO L175 Difference]: Start difference. First operand has 72 places, 74 transitions, 232 flow. Second operand 3 states and 166 transitions. [2023-11-21 21:03:53,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 81 transitions, 318 flow [2023-11-21 21:03:53,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 81 transitions, 300 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:03:53,119 INFO L231 Difference]: Finished difference. Result has 74 places, 73 transitions, 250 flow [2023-11-21 21:03:53,119 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=74, PETRI_TRANSITIONS=73} [2023-11-21 21:03:53,120 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 9 predicate places. [2023-11-21 21:03:53,121 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 73 transitions, 250 flow [2023-11-21 21:03:53,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2023-11-21 21:03:53,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:03:53,121 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:03:53,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 21:03:53,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:03:53,342 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-21 21:03:53,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:53,343 INFO L85 PathProgramCache]: Analyzing trace with hash 17428927, now seen corresponding path program 1 times [2023-11-21 21:03:53,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:53,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508624353] [2023-11-21 21:03:53,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:53,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:53,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:03:53,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:03:53,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508624353] [2023-11-21 21:03:53,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508624353] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:03:53,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293316730] [2023-11-21 21:03:53,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:53,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:03:53,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:03:53,481 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:03:53,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 21:03:53,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:53,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 21:03:53,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:03:53,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-21 21:03:53,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 21:03:53,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 21:03:53,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293316730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:03:53,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 21:03:53,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-21 21:03:53,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363956212] [2023-11-21 21:03:53,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:03:53,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:03:53,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:03:53,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:03:53,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:03:53,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 64 [2023-11-21 21:03:53,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 73 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) [2023-11-21 21:03:53,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:03:53,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 64 [2023-11-21 21:03:53,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:03:53,730 INFO L124 PetriNetUnfolderBase]: 2/89 cut-off events. [2023-11-21 21:03:53,730 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-11-21 21:03:53,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 89 events. 2/89 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 95 event pairs, 1 based on Foata normal form. 2/91 useless extension candidates. Maximal degree in co-relation 117. Up to 9 conditions per place. [2023-11-21 21:03:53,733 INFO L140 encePairwiseOnDemand]: 60/64 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2023-11-21 21:03:53,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 59 transitions, 178 flow [2023-11-21 21:03:53,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:03:53,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:03:53,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2023-11-21 21:03:53,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.921875 [2023-11-21 21:03:53,735 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 177 transitions. [2023-11-21 21:03:53,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 177 transitions. [2023-11-21 21:03:53,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:03:53,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 177 transitions. [2023-11-21 21:03:53,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2023-11-21 21:03:53,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-21 21:03:53,740 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-21 21:03:53,741 INFO L175 Difference]: Start difference. First operand has 74 places, 73 transitions, 250 flow. Second operand 3 states and 177 transitions. [2023-11-21 21:03:53,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 59 transitions, 178 flow [2023-11-21 21:03:53,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 59 transitions, 142 flow, removed 8 selfloop flow, removed 8 redundant places. [2023-11-21 21:03:53,747 INFO L231 Difference]: Finished difference. Result has 64 places, 0 transitions, 0 flow [2023-11-21 21:03:53,748 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=64, PETRI_TRANSITIONS=0} [2023-11-21 21:03:53,751 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -1 predicate places. [2023-11-21 21:03:53,751 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 0 transitions, 0 flow [2023-11-21 21:03:53,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) [2023-11-21 21:03:53,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-11-21 21:03:53,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-11-21 21:03:53,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-21 21:03:53,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-11-21 21:03:53,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-11-21 21:03:53,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-11-21 21:03:53,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-11-21 21:03:53,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 21:03:53,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:03:53,980 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-21 21:03:53,986 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 21:03:53,986 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 21:03:53,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:03:53 BasicIcfg [2023-11-21 21:03:53,993 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 21:03:53,993 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:03:53,994 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:03:53,994 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:03:53,994 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:50" (3/4) ... [2023-11-21 21:03:53,996 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 21:03:53,999 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-21 21:03:54,002 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-21 21:03:54,002 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 21:03:54,003 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 21:03:54,085 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 21:03:54,085 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 21:03:54,086 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:03:54,086 INFO L158 Benchmark]: Toolchain (without parser) took 4746.42ms. Allocated memory is still 157.3MB. Free memory was 126.0MB in the beginning and 64.1MB in the end (delta: 61.9MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. [2023-11-21 21:03:54,087 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 157.3MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:03:54,087 INFO L158 Benchmark]: CACSL2BoogieTranslator took 694.08ms. Allocated memory is still 157.3MB. Free memory was 125.7MB in the beginning and 106.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 21:03:54,088 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.91ms. Allocated memory is still 157.3MB. Free memory was 106.3MB in the beginning and 104.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:03:54,088 INFO L158 Benchmark]: Boogie Preprocessor took 40.79ms. Allocated memory is still 157.3MB. Free memory was 104.2MB in the beginning and 102.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:03:54,089 INFO L158 Benchmark]: RCFGBuilder took 420.15ms. Allocated memory is still 157.3MB. Free memory was 102.9MB in the beginning and 89.1MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 21:03:54,089 INFO L158 Benchmark]: TraceAbstraction took 3443.66ms. Allocated memory is still 157.3MB. Free memory was 88.4MB in the beginning and 68.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2023-11-21 21:03:54,089 INFO L158 Benchmark]: Witness Printer took 92.43ms. Allocated memory is still 157.3MB. Free memory was 68.3MB in the beginning and 64.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 21:03:54,092 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 157.3MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 694.08ms. Allocated memory is still 157.3MB. Free memory was 125.7MB in the beginning and 106.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.91ms. Allocated memory is still 157.3MB. Free memory was 106.3MB in the beginning and 104.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.79ms. Allocated memory is still 157.3MB. Free memory was 104.2MB in the beginning and 102.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 420.15ms. Allocated memory is still 157.3MB. Free memory was 102.9MB in the beginning and 89.1MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3443.66ms. Allocated memory is still 157.3MB. Free memory was 88.4MB in the beginning and 68.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * Witness Printer took 92.43ms. Allocated memory is still 157.3MB. Free memory was 68.3MB in the beginning and 64.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: 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, 83 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 139 IncrementalHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 18 mSDtfsCounter, 139 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=250occurred in iteration=4, InterpolantAutomatonStates: 15, 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, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 271 NumberOfCodeBlocks, 271 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 262 ConstructedInterpolants, 0 QuantifiedInterpolants, 326 SizeOfPredicates, 0 NumberOfNonLiveVariables, 346 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 4/8 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-21 21:03:54,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0721d355-1935-4272-9ed6-a35b1cc59967/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE