./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_11-traces-max-simple_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b126aca3-dfe3-45bb-8137-e39de598f383/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b126aca3-dfe3-45bb-8137-e39de598f383/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b126aca3-dfe3-45bb-8137-e39de598f383/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b126aca3-dfe3-45bb-8137-e39de598f383/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_11-traces-max-simple_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b126aca3-dfe3-45bb-8137-e39de598f383/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b126aca3-dfe3-45bb-8137-e39de598f383/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6ec45a8cc5eb531168b9afc45cc8af1360572640b5394bd745e0b1188f31bc79 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:32:59,259 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:32:59,336 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b126aca3-dfe3-45bb-8137-e39de598f383/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:32:59,342 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:32:59,343 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:32:59,367 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:32:59,368 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:32:59,369 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:32:59,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:32:59,370 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:32:59,371 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:32:59,372 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:32:59,372 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:32:59,373 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:32:59,374 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:32:59,374 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:32:59,375 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:32:59,376 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:32:59,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:32:59,377 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:32:59,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:32:59,378 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:32:59,379 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:32:59,379 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:32:59,380 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:32:59,381 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:32:59,381 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:32:59,382 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:32:59,382 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:32:59,383 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:32:59,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:32:59,384 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:32:59,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:32:59,385 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:32:59,386 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:32:59,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:32:59,386 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:32:59,387 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:32:59,387 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:32:59,387 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:32:59,388 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:32:59,388 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_b126aca3-dfe3-45bb-8137-e39de598f383/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b126aca3-dfe3-45bb-8137-e39de598f383/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ec45a8cc5eb531168b9afc45cc8af1360572640b5394bd745e0b1188f31bc79 [2023-11-12 02:32:59,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:32:59,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:32:59,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:32:59,679 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:32:59,680 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:32:59,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b126aca3-dfe3-45bb-8137-e39de598f383/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/goblint-regression/36-apron_11-traces-max-simple_true.i [2023-11-12 02:33:02,950 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:33:03,263 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:33:03,264 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b126aca3-dfe3-45bb-8137-e39de598f383/sv-benchmarks/c/goblint-regression/36-apron_11-traces-max-simple_true.i [2023-11-12 02:33:03,285 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b126aca3-dfe3-45bb-8137-e39de598f383/bin/uautomizer-verify-uTZkv6EMXl/data/7bbbf3cb9/d8bfa96f03544d6fa19d3550ec4761a3/FLAG6b3130b49 [2023-11-12 02:33:03,304 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b126aca3-dfe3-45bb-8137-e39de598f383/bin/uautomizer-verify-uTZkv6EMXl/data/7bbbf3cb9/d8bfa96f03544d6fa19d3550ec4761a3 [2023-11-12 02:33:03,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:33:03,317 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:33:03,319 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:33:03,319 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:33:03,324 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:33:03,325 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:03" (1/1) ... [2023-11-12 02:33:03,326 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@134ef6c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:03, skipping insertion in model container [2023-11-12 02:33:03,326 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:03" (1/1) ... [2023-11-12 02:33:03,377 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:33:03,830 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:33:03,844 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:33:03,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:33:03,926 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:33:03,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:03 WrapperNode [2023-11-12 02:33:03,927 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:33:03,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:33:03,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:33:03,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:33:03,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:03" (1/1) ... [2023-11-12 02:33:03,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:03" (1/1) ... [2023-11-12 02:33:03,999 INFO L138 Inliner]: procedures = 162, calls = 22, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 71 [2023-11-12 02:33:04,004 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:33:04,005 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:33:04,005 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:33:04,005 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:33:04,015 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:03" (1/1) ... [2023-11-12 02:33:04,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:03" (1/1) ... [2023-11-12 02:33:04,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:03" (1/1) ... [2023-11-12 02:33:04,024 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:03" (1/1) ... [2023-11-12 02:33:04,031 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:03" (1/1) ... [2023-11-12 02:33:04,033 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:03" (1/1) ... [2023-11-12 02:33:04,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:03" (1/1) ... [2023-11-12 02:33:04,036 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:03" (1/1) ... [2023-11-12 02:33:04,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:33:04,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:33:04,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:33:04,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:33:04,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:03" (1/1) ... [2023-11-12 02:33:04,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:33:04,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b126aca3-dfe3-45bb-8137-e39de598f383/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:04,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b126aca3-dfe3-45bb-8137-e39de598f383/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:33:04,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b126aca3-dfe3-45bb-8137-e39de598f383/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:33:04,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:33:04,122 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:33:04,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:33:04,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:33:04,123 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-12 02:33:04,123 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-12 02:33:04,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:33:04,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:33:04,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:33:04,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:33:04,126 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:33:04,257 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:33:04,259 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:33:04,423 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:33:04,430 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:33:04,431 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:33:04,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:04 BoogieIcfgContainer [2023-11-12 02:33:04,433 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:33:04,437 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:33:04,437 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:33:04,440 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:33:04,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:33:03" (1/3) ... [2023-11-12 02:33:04,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12efa84a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:33:04, skipping insertion in model container [2023-11-12 02:33:04,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:03" (2/3) ... [2023-11-12 02:33:04,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12efa84a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:33:04, skipping insertion in model container [2023-11-12 02:33:04,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:04" (3/3) ... [2023-11-12 02:33:04,444 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_11-traces-max-simple_true.i [2023-11-12 02:33:04,454 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:33:04,465 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:33:04,466 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-12 02:33:04,466 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:33:04,520 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:33:04,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 86 transitions, 176 flow [2023-11-12 02:33:04,607 INFO L124 PetriNetUnfolderBase]: 4/85 cut-off events. [2023-11-12 02:33:04,607 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:33:04,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 4/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 120 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2023-11-12 02:33:04,614 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 86 transitions, 176 flow [2023-11-12 02:33:04,620 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 85 transitions, 173 flow [2023-11-12 02:33:04,623 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:33:04,639 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 85 transitions, 173 flow [2023-11-12 02:33:04,644 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 85 transitions, 173 flow [2023-11-12 02:33:04,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 85 transitions, 173 flow [2023-11-12 02:33:04,677 INFO L124 PetriNetUnfolderBase]: 4/85 cut-off events. [2023-11-12 02:33:04,677 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:33:04,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 4/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 120 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2023-11-12 02:33:04,724 INFO L119 LiptonReduction]: Number of co-enabled transitions 1914 [2023-11-12 02:33:06,997 INFO L134 LiptonReduction]: Checked pairs total: 5129 [2023-11-12 02:33:06,997 INFO L136 LiptonReduction]: Total number of compositions: 81 [2023-11-12 02:33:07,022 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:33:07,030 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;@d1ee199, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:33:07,031 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-12 02:33:07,034 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:33:07,035 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2023-11-12 02:33:07,035 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:33:07,035 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:33:07,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:33:07,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-12 02:33:07,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:07,043 INFO L85 PathProgramCache]: Analyzing trace with hash 312508575, now seen corresponding path program 1 times [2023-11-12 02:33:07,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:07,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730092634] [2023-11-12 02:33:07,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:07,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:07,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:33:07,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:07,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730092634] [2023-11-12 02:33:07,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730092634] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:07,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:07,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:33:07,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634274041] [2023-11-12 02:33:07,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:07,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:33:07,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:07,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:33:07,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:33:07,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 167 [2023-11-12 02:33:07,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 25 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:07,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:33:07,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 167 [2023-11-12 02:33:07,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:33:07,506 INFO L124 PetriNetUnfolderBase]: 61/161 cut-off events. [2023-11-12 02:33:07,507 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:33:07,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 161 events. 61/161 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 605 event pairs, 21 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 305. Up to 111 conditions per place. [2023-11-12 02:33:07,510 INFO L140 encePairwiseOnDemand]: 156/167 looper letters, 20 selfloop transitions, 6 changer transitions 4/32 dead transitions. [2023-11-12 02:33:07,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 32 transitions, 127 flow [2023-11-12 02:33:07,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:33:07,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:33:07,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2023-11-12 02:33:07,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4870259481037924 [2023-11-12 02:33:07,530 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 244 transitions. [2023-11-12 02:33:07,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 244 transitions. [2023-11-12 02:33:07,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:33:07,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 244 transitions. [2023-11-12 02:33:07,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:07,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:07,549 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:07,551 INFO L175 Difference]: Start difference. First operand has 27 places, 25 transitions, 53 flow. Second operand 3 states and 244 transitions. [2023-11-12 02:33:07,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 32 transitions, 127 flow [2023-11-12 02:33:07,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 32 transitions, 126 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:33:07,557 INFO L231 Difference]: Finished difference. Result has 27 places, 24 transitions, 86 flow [2023-11-12 02:33:07,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=27, PETRI_TRANSITIONS=24} [2023-11-12 02:33:07,564 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2023-11-12 02:33:07,565 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 24 transitions, 86 flow [2023-11-12 02:33:07,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:07,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:33:07,566 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:33:07,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:33:07,567 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)] === [2023-11-12 02:33:07,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:07,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1096795719, now seen corresponding path program 1 times [2023-11-12 02:33:07,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:07,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142860648] [2023-11-12 02:33:07,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:07,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:07,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:33:07,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:07,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142860648] [2023-11-12 02:33:07,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142860648] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:07,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:07,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:33:07,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784169341] [2023-11-12 02:33:07,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:07,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:33:07,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:07,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:33:07,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:33:07,676 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2023-11-12 02:33:07,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 24 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:07,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:33:07,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2023-11-12 02:33:07,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:33:07,733 INFO L124 PetriNetUnfolderBase]: 44/137 cut-off events. [2023-11-12 02:33:07,733 INFO L125 PetriNetUnfolderBase]: For 55/60 co-relation queries the response was YES. [2023-11-12 02:33:07,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 137 events. 44/137 cut-off events. For 55/60 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 574 event pairs, 29 based on Foata normal form. 2/130 useless extension candidates. Maximal degree in co-relation 325. Up to 105 conditions per place. [2023-11-12 02:33:07,735 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 14 selfloop transitions, 6 changer transitions 5/31 dead transitions. [2023-11-12 02:33:07,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 31 transitions, 158 flow [2023-11-12 02:33:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:33:07,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:33:07,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 235 transitions. [2023-11-12 02:33:07,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.469061876247505 [2023-11-12 02:33:07,739 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 235 transitions. [2023-11-12 02:33:07,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 235 transitions. [2023-11-12 02:33:07,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:33:07,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 235 transitions. [2023-11-12 02:33:07,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:07,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:07,745 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:07,745 INFO L175 Difference]: Start difference. First operand has 27 places, 24 transitions, 86 flow. Second operand 3 states and 235 transitions. [2023-11-12 02:33:07,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 31 transitions, 158 flow [2023-11-12 02:33:07,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 31 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:33:07,749 INFO L231 Difference]: Finished difference. Result has 28 places, 25 transitions, 102 flow [2023-11-12 02:33:07,749 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=28, PETRI_TRANSITIONS=25} [2023-11-12 02:33:07,750 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2023-11-12 02:33:07,750 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 25 transitions, 102 flow [2023-11-12 02:33:07,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:07,751 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:33:07,751 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:33:07,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:33:07,752 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-12 02:33:07,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:07,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1494087159, now seen corresponding path program 1 times [2023-11-12 02:33:07,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:07,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79558996] [2023-11-12 02:33:07,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:07,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:07,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:07,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:33:07,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:07,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79558996] [2023-11-12 02:33:07,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79558996] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:07,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:07,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:33:07,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151027835] [2023-11-12 02:33:07,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:07,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:33:07,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:07,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:33:07,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:33:07,947 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 167 [2023-11-12 02:33:07,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 25 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:07,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:33:07,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 167 [2023-11-12 02:33:07,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:33:07,984 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2023-11-12 02:33:07,985 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-12 02:33:07,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 25 events. 0/25 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 15 event pairs, 0 based on Foata normal form. 7/32 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2023-11-12 02:33:07,986 INFO L140 encePairwiseOnDemand]: 163/167 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-11-12 02:33:07,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 18 transitions, 89 flow [2023-11-12 02:33:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:33:07,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:33:07,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 235 transitions. [2023-11-12 02:33:07,990 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.469061876247505 [2023-11-12 02:33:07,991 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 235 transitions. [2023-11-12 02:33:07,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 235 transitions. [2023-11-12 02:33:07,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:33:07,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 235 transitions. [2023-11-12 02:33:07,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:07,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:07,997 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:07,998 INFO L175 Difference]: Start difference. First operand has 28 places, 25 transitions, 102 flow. Second operand 3 states and 235 transitions. [2023-11-12 02:33:07,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 18 transitions, 89 flow [2023-11-12 02:33:08,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 18 transitions, 70 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-11-12 02:33:08,000 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2023-11-12 02:33:08,001 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2023-11-12 02:33:08,002 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -3 predicate places. [2023-11-12 02:33:08,006 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2023-11-12 02:33:08,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:33:08,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-11-12 02:33:08,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-11-12 02:33:08,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-12 02:33:08,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-11-12 02:33:08,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-11-12 02:33:08,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-11-12 02:33:08,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-11-12 02:33:08,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:33:08,015 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-12 02:33:08,021 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:33:08,021 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:33:08,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:33:08 BasicIcfg [2023-11-12 02:33:08,027 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:33:08,028 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:33:08,029 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:33:08,029 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:33:08,030 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:04" (3/4) ... [2023-11-12 02:33:08,033 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:33:08,038 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-12 02:33:08,045 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-12 02:33:08,046 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 02:33:08,046 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:33:08,046 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:33:08,138 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b126aca3-dfe3-45bb-8137-e39de598f383/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:33:08,139 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b126aca3-dfe3-45bb-8137-e39de598f383/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:33:08,144 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:33:08,145 INFO L158 Benchmark]: Toolchain (without parser) took 4827.81ms. Allocated memory was 172.0MB in the beginning and 211.8MB in the end (delta: 39.8MB). Free memory was 138.6MB in the beginning and 145.4MB in the end (delta: -6.8MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2023-11-12 02:33:08,148 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory was 67.0MB in the beginning and 66.9MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:33:08,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 609.35ms. Allocated memory is still 172.0MB. Free memory was 138.6MB in the beginning and 119.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:33:08,149 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.23ms. Allocated memory is still 172.0MB. Free memory was 119.3MB in the beginning and 117.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:33:08,150 INFO L158 Benchmark]: Boogie Preprocessor took 34.58ms. Allocated memory is still 172.0MB. Free memory was 117.2MB in the beginning and 116.2MB in the end (delta: 988.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:33:08,150 INFO L158 Benchmark]: RCFGBuilder took 393.63ms. Allocated memory is still 172.0MB. Free memory was 116.2MB in the beginning and 103.0MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:33:08,151 INFO L158 Benchmark]: TraceAbstraction took 3590.48ms. Allocated memory was 172.0MB in the beginning and 211.8MB in the end (delta: 39.8MB). Free memory was 102.5MB in the beginning and 149.6MB in the end (delta: -47.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:33:08,151 INFO L158 Benchmark]: Witness Printer took 115.41ms. Allocated memory is still 211.8MB. Free memory was 149.6MB in the beginning and 145.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:33:08,154 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory was 67.0MB in the beginning and 66.9MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 609.35ms. Allocated memory is still 172.0MB. Free memory was 138.6MB in the beginning and 119.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.23ms. Allocated memory is still 172.0MB. Free memory was 119.3MB in the beginning and 117.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.58ms. Allocated memory is still 172.0MB. Free memory was 117.2MB in the beginning and 116.2MB in the end (delta: 988.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 393.63ms. Allocated memory is still 172.0MB. Free memory was 116.2MB in the beginning and 103.0MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3590.48ms. Allocated memory was 172.0MB in the beginning and 211.8MB in the end (delta: 39.8MB). Free memory was 102.5MB in the beginning and 149.6MB in the end (delta: -47.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 115.41ms. Allocated memory is still 211.8MB. Free memory was 149.6MB in the beginning and 145.4MB 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: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 85 PlacesBefore, 27 PlacesAfterwards, 85 TransitionsBefore, 25 TransitionsAfterwards, 1914 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 17 ConcurrentYvCompositions, 2 ChoiceCompositions, 81 TotalNumberOfCompositions, 5129 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2602, independent: 2355, independent conditional: 0, independent unconditional: 2355, dependent: 247, dependent conditional: 0, dependent unconditional: 247, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1139, independent: 1096, independent conditional: 0, independent unconditional: 1096, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2602, independent: 1259, independent conditional: 0, independent unconditional: 1259, dependent: 204, dependent conditional: 0, dependent unconditional: 204, unknown: 1139, unknown conditional: 0, unknown unconditional: 1139] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 685]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 686]: 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, 112 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: 3.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 108 IncrementalHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 6 mSDtfsCounter, 108 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=2, InterpolantAutomatonStates: 9, 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, 0.3s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 02:33:08,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b126aca3-dfe3-45bb-8137-e39de598f383/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE