./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/13_unverif.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_e3115da6-cc57-4f61-97ad-9b08f21ac188/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3115da6-cc57-4f61-97ad-9b08f21ac188/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3115da6-cc57-4f61-97ad-9b08f21ac188/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3115da6-cc57-4f61-97ad-9b08f21ac188/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/13_unverif.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3115da6-cc57-4f61-97ad-9b08f21ac188/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3115da6-cc57-4f61-97ad-9b08f21ac188/bin/uautomizer-verify-uCwYo4JHxu --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 ea403ebfe777a86c8f08ec54b02dc30e546c8fae743fed5fb0e88129df40ac76 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:09:27,412 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:09:27,535 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3115da6-cc57-4f61-97ad-9b08f21ac188/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:09:27,540 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:09:27,541 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:09:27,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:09:27,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:09:27,578 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:09:27,579 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:09:27,584 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:09:27,586 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:09:27,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:09:27,587 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:09:27,589 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:09:27,589 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:09:27,590 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:09:27,590 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:09:27,591 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:09:27,591 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:09:27,592 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:09:27,592 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:09:27,593 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:09:27,594 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:09:27,595 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:09:27,595 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:09:27,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:09:27,596 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:09:27,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:09:27,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:09:27,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:09:27,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:09:27,600 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:09:27,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:09:27,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:09:27,601 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:09:27,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:09:27,601 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:09:27,601 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:09:27,602 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:09:27,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:09:27,602 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:09:27,612 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_e3115da6-cc57-4f61-97ad-9b08f21ac188/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3115da6-cc57-4f61-97ad-9b08f21ac188/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea403ebfe777a86c8f08ec54b02dc30e546c8fae743fed5fb0e88129df40ac76 [2023-11-19 07:09:27,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:09:27,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:09:27,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:09:27,982 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:09:27,983 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:09:27,984 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3115da6-cc57-4f61-97ad-9b08f21ac188/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-ext/13_unverif.i [2023-11-19 07:09:31,125 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:09:31,416 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:09:31,416 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3115da6-cc57-4f61-97ad-9b08f21ac188/sv-benchmarks/c/pthread-ext/13_unverif.i [2023-11-19 07:09:31,433 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3115da6-cc57-4f61-97ad-9b08f21ac188/bin/uautomizer-verify-uCwYo4JHxu/data/5427fcd9d/9e26a31074dd46a58438dc2672e9786d/FLAGf3631030f [2023-11-19 07:09:31,460 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3115da6-cc57-4f61-97ad-9b08f21ac188/bin/uautomizer-verify-uCwYo4JHxu/data/5427fcd9d/9e26a31074dd46a58438dc2672e9786d [2023-11-19 07:09:31,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:09:31,469 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:09:31,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:09:31,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:09:31,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:09:31,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,484 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4223cb94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:31, skipping insertion in model container [2023-11-19 07:09:31,484 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,527 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:09:31,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:09:31,980 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:09:32,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:09:32,077 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:09:32,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32 WrapperNode [2023-11-19 07:09:32,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:09:32,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:09:32,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:09:32,080 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:09:32,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,111 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,139 INFO L138 Inliner]: procedures = 168, calls = 13, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 64 [2023-11-19 07:09:32,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:09:32,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:09:32,141 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:09:32,142 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:09:32,151 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,166 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,167 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,176 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,187 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,189 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,192 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,194 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:09:32,204 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:09:32,205 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:09:32,205 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:09:32,205 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:09:32,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3115da6-cc57-4f61-97ad-9b08f21ac188/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:09:32,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3115da6-cc57-4f61-97ad-9b08f21ac188/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:09:32,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3115da6-cc57-4f61-97ad-9b08f21ac188/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:09:32,273 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-19 07:09:32,273 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-19 07:09:32,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:09:32,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:09:32,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:09:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:09:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:09:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:09:32,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:09:32,277 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:09:32,489 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:09:32,491 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:09:32,658 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:09:32,741 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:09:32,741 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:09:32,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:09:32 BoogieIcfgContainer [2023-11-19 07:09:32,745 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:09:32,748 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:09:32,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:09:32,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:09:32,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:09:31" (1/3) ... [2023-11-19 07:09:32,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27855723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:09:32, skipping insertion in model container [2023-11-19 07:09:32,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (2/3) ... [2023-11-19 07:09:32,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27855723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:09:32, skipping insertion in model container [2023-11-19 07:09:32,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:09:32" (3/3) ... [2023-11-19 07:09:32,755 INFO L112 eAbstractionObserver]: Analyzing ICFG 13_unverif.i [2023-11-19 07:09:32,764 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:09:32,776 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:09:32,777 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-19 07:09:32,777 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:09:32,859 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:09:32,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 61 transitions, 126 flow [2023-11-19 07:09:32,951 INFO L124 PetriNetUnfolderBase]: 5/72 cut-off events. [2023-11-19 07:09:32,952 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:09:32,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 5/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 101 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 48. Up to 4 conditions per place. [2023-11-19 07:09:32,957 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 61 transitions, 126 flow [2023-11-19 07:09:32,962 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 61 transitions, 126 flow [2023-11-19 07:09:32,969 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:09:32,983 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 61 transitions, 126 flow [2023-11-19 07:09:32,986 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 61 transitions, 126 flow [2023-11-19 07:09:32,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 61 transitions, 126 flow [2023-11-19 07:09:33,021 INFO L124 PetriNetUnfolderBase]: 5/72 cut-off events. [2023-11-19 07:09:33,021 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:09:33,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 5/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 101 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 48. Up to 4 conditions per place. [2023-11-19 07:09:33,024 INFO L119 LiptonReduction]: Number of co-enabled transitions 980 [2023-11-19 07:09:34,831 INFO L134 LiptonReduction]: Checked pairs total: 942 [2023-11-19 07:09:34,832 INFO L136 LiptonReduction]: Total number of compositions: 67 [2023-11-19 07:09:34,848 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:09:34,856 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;@40409e6e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:09:34,856 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-19 07:09:34,859 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:09:34,860 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-19 07:09:34,860 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:09:34,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:09:34,861 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:09:34,861 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-19 07:09:34,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:34,867 INFO L85 PathProgramCache]: Analyzing trace with hash 9680699, now seen corresponding path program 1 times [2023-11-19 07:09:34,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:34,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740123076] [2023-11-19 07:09:34,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:34,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:35,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:09:35,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:35,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740123076] [2023-11-19 07:09:35,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740123076] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:35,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:35,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:09:35,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95235202] [2023-11-19 07:09:35,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:35,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:09:35,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:35,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:09:35,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:09:35,211 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 128 [2023-11-19 07:09:35,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 16 transitions, 36 flow. Second operand has 2 states, 2 states have (on average 53.0) internal successors, (106), 2 states have internal predecessors, (106), 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) [2023-11-19 07:09:35,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:09:35,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 128 [2023-11-19 07:09:35,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:09:35,260 INFO L124 PetriNetUnfolderBase]: 7/22 cut-off events. [2023-11-19 07:09:35,261 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:09:35,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 22 events. 7/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 40 event pairs, 4 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 33. Up to 19 conditions per place. [2023-11-19 07:09:35,263 INFO L140 encePairwiseOnDemand]: 121/128 looper letters, 7 selfloop transitions, 0 changer transitions 0/9 dead transitions. [2023-11-19 07:09:35,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 9 transitions, 36 flow [2023-11-19 07:09:35,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:09:35,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:09:35,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 116 transitions. [2023-11-19 07:09:35,280 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.453125 [2023-11-19 07:09:35,281 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 116 transitions. [2023-11-19 07:09:35,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 116 transitions. [2023-11-19 07:09:35,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:09:35,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 116 transitions. [2023-11-19 07:09:35,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 58.0) internal successors, (116), 2 states have internal predecessors, (116), 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) [2023-11-19 07:09:35,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:09:35,301 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:09:35,303 INFO L175 Difference]: Start difference. First operand has 18 places, 16 transitions, 36 flow. Second operand 2 states and 116 transitions. [2023-11-19 07:09:35,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 9 transitions, 36 flow [2023-11-19 07:09:35,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 9 transitions, 36 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:09:35,310 INFO L231 Difference]: Finished difference. Result has 12 places, 9 transitions, 22 flow [2023-11-19 07:09:35,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=22, PETRI_PLACES=12, PETRI_TRANSITIONS=9} [2023-11-19 07:09:35,317 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, -6 predicate places. [2023-11-19 07:09:35,318 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 9 transitions, 22 flow [2023-11-19 07:09:35,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 53.0) internal successors, (106), 2 states have internal predecessors, (106), 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) [2023-11-19 07:09:35,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:09:35,319 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:09:35,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:09:35,320 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-19 07:09:35,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:35,323 INFO L85 PathProgramCache]: Analyzing trace with hash 300102616, now seen corresponding path program 1 times [2023-11-19 07:09:35,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:35,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98765066] [2023-11-19 07:09:35,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:35,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:35,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:09:35,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:35,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98765066] [2023-11-19 07:09:35,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98765066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:35,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:35,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:09:35,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318234466] [2023-11-19 07:09:35,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:35,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:09:35,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:35,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:09:35,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:09:35,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 128 [2023-11-19 07:09:35,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 9 transitions, 22 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:09:35,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:09:35,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 128 [2023-11-19 07:09:35,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:09:35,512 INFO L124 PetriNetUnfolderBase]: 7/19 cut-off events. [2023-11-19 07:09:35,512 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:09:35,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 19 events. 7/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 28 event pairs, 2 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 39. Up to 11 conditions per place. [2023-11-19 07:09:35,513 INFO L140 encePairwiseOnDemand]: 126/128 looper letters, 8 selfloop transitions, 1 changer transitions 0/10 dead transitions. [2023-11-19 07:09:35,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 10 transitions, 42 flow [2023-11-19 07:09:35,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:09:35,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:09:35,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 142 transitions. [2023-11-19 07:09:35,516 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3697916666666667 [2023-11-19 07:09:35,517 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 142 transitions. [2023-11-19 07:09:35,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 142 transitions. [2023-11-19 07:09:35,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:09:35,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 142 transitions. [2023-11-19 07:09:35,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2023-11-19 07:09:35,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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) [2023-11-19 07:09:35,522 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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) [2023-11-19 07:09:35,522 INFO L175 Difference]: Start difference. First operand has 12 places, 9 transitions, 22 flow. Second operand 3 states and 142 transitions. [2023-11-19 07:09:35,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 10 transitions, 42 flow [2023-11-19 07:09:35,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 10 transitions, 42 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:09:35,524 INFO L231 Difference]: Finished difference. Result has 13 places, 8 transitions, 22 flow [2023-11-19 07:09:35,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=20, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=22, PETRI_PLACES=13, PETRI_TRANSITIONS=8} [2023-11-19 07:09:35,525 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, -5 predicate places. [2023-11-19 07:09:35,526 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 8 transitions, 22 flow [2023-11-19 07:09:35,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:09:35,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:09:35,527 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-19 07:09:35,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:09:35,527 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-19 07:09:35,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:35,528 INFO L85 PathProgramCache]: Analyzing trace with hash 713207483, now seen corresponding path program 1 times [2023-11-19 07:09:35,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:35,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216716967] [2023-11-19 07:09:35,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:35,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:09:35,557 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:09:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:09:35,601 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:09:35,602 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:09:35,603 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2023-11-19 07:09:35,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-11-19 07:09:35,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-11-19 07:09:35,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-11-19 07:09:35,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-11-19 07:09:35,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-11-19 07:09:35,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2023-11-19 07:09:35,611 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-11-19 07:09:35,611 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-11-19 07:09:35,611 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-11-19 07:09:35,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-11-19 07:09:35,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-11-19 07:09:35,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-11-19 07:09:35,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-11-19 07:09:35,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-11-19 07:09:35,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:09:35,614 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:09:35,617 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:09:35,618 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 07:09:35,642 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:09:35,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 97 transitions, 204 flow [2023-11-19 07:09:35,671 INFO L124 PetriNetUnfolderBase]: 9/121 cut-off events. [2023-11-19 07:09:35,671 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:09:35,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 121 events. 9/121 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 275 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 83. Up to 6 conditions per place. [2023-11-19 07:09:35,674 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 97 transitions, 204 flow [2023-11-19 07:09:35,675 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 97 transitions, 204 flow [2023-11-19 07:09:35,676 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:09:35,676 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 97 transitions, 204 flow [2023-11-19 07:09:35,676 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 97 transitions, 204 flow [2023-11-19 07:09:35,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 97 transitions, 204 flow [2023-11-19 07:09:35,697 INFO L124 PetriNetUnfolderBase]: 9/121 cut-off events. [2023-11-19 07:09:35,698 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:09:35,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 121 events. 9/121 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 275 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 83. Up to 6 conditions per place. [2023-11-19 07:09:35,704 INFO L119 LiptonReduction]: Number of co-enabled transitions 4480 [2023-11-19 07:09:36,770 INFO L134 LiptonReduction]: Checked pairs total: 16587 [2023-11-19 07:09:36,770 INFO L136 LiptonReduction]: Total number of compositions: 63 [2023-11-19 07:09:36,775 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:09:36,781 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;@40409e6e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:09:36,781 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-11-19 07:09:36,785 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:09:36,785 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-19 07:09:36,785 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:09:36,786 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:09:36,786 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:09:36,786 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-19 07:09:36,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:36,787 INFO L85 PathProgramCache]: Analyzing trace with hash 15898979, now seen corresponding path program 1 times [2023-11-19 07:09:36,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:36,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131520499] [2023-11-19 07:09:36,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:36,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:36,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:09:36,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:36,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131520499] [2023-11-19 07:09:36,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131520499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:36,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:36,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:09:36,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509528512] [2023-11-19 07:09:36,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:36,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:09:36,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:36,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:09:36,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:09:36,854 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 160 [2023-11-19 07:09:36,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 56 transitions, 122 flow. Second operand has 2 states, 2 states have (on average 81.0) internal successors, (162), 2 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) [2023-11-19 07:09:36,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:09:36,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 160 [2023-11-19 07:09:36,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:09:36,975 INFO L124 PetriNetUnfolderBase]: 99/387 cut-off events. [2023-11-19 07:09:36,975 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-19 07:09:36,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 574 conditions, 387 events. 99/387 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2226 event pairs, 79 based on Foata normal form. 36/353 useless extension candidates. Maximal degree in co-relation 247. Up to 164 conditions per place. [2023-11-19 07:09:36,984 INFO L140 encePairwiseOnDemand]: 149/160 looper letters, 13 selfloop transitions, 0 changer transitions 0/42 dead transitions. [2023-11-19 07:09:36,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 120 flow [2023-11-19 07:09:36,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:09:36,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:09:36,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 182 transitions. [2023-11-19 07:09:36,991 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.56875 [2023-11-19 07:09:36,992 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 182 transitions. [2023-11-19 07:09:36,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 182 transitions. [2023-11-19 07:09:36,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:09:36,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 182 transitions. [2023-11-19 07:09:36,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 91.0) internal successors, (182), 2 states have internal predecessors, (182), 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) [2023-11-19 07:09:36,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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) [2023-11-19 07:09:36,997 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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) [2023-11-19 07:09:36,997 INFO L175 Difference]: Start difference. First operand has 55 places, 56 transitions, 122 flow. Second operand 2 states and 182 transitions. [2023-11-19 07:09:36,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 120 flow [2023-11-19 07:09:36,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 42 transitions, 120 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:09:37,000 INFO L231 Difference]: Finished difference. Result has 46 places, 42 transitions, 94 flow [2023-11-19 07:09:37,000 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=94, PETRI_PLACES=46, PETRI_TRANSITIONS=42} [2023-11-19 07:09:37,003 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -9 predicate places. [2023-11-19 07:09:37,004 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 94 flow [2023-11-19 07:09:37,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 81.0) internal successors, (162), 2 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) [2023-11-19 07:09:37,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:09:37,005 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:09:37,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:09:37,005 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-19 07:09:37,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:37,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1900934841, now seen corresponding path program 1 times [2023-11-19 07:09:37,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:37,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623834721] [2023-11-19 07:09:37,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:37,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:37,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:09:37,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:37,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623834721] [2023-11-19 07:09:37,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623834721] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:37,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:37,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:09:37,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964283546] [2023-11-19 07:09:37,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:37,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:09:37,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:37,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:09:37,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:09:37,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 160 [2023-11-19 07:09:37,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:09:37,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:09:37,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 160 [2023-11-19 07:09:37,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:09:37,288 INFO L124 PetriNetUnfolderBase]: 229/711 cut-off events. [2023-11-19 07:09:37,288 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-11-19 07:09:37,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1127 conditions, 711 events. 229/711 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4650 event pairs, 70 based on Foata normal form. 0/626 useless extension candidates. Maximal degree in co-relation 1122. Up to 309 conditions per place. [2023-11-19 07:09:37,294 INFO L140 encePairwiseOnDemand]: 152/160 looper letters, 28 selfloop transitions, 6 changer transitions 0/57 dead transitions. [2023-11-19 07:09:37,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 57 transitions, 197 flow [2023-11-19 07:09:37,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:09:37,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:09:37,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2023-11-19 07:09:37,309 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.53125 [2023-11-19 07:09:37,309 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2023-11-19 07:09:37,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2023-11-19 07:09:37,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:09:37,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2023-11-19 07:09:37,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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) [2023-11-19 07:09:37,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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) [2023-11-19 07:09:37,314 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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) [2023-11-19 07:09:37,314 INFO L175 Difference]: Start difference. First operand has 46 places, 42 transitions, 94 flow. Second operand 3 states and 255 transitions. [2023-11-19 07:09:37,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 57 transitions, 197 flow [2023-11-19 07:09:37,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 197 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:09:37,316 INFO L231 Difference]: Finished difference. Result has 50 places, 48 transitions, 146 flow [2023-11-19 07:09:37,317 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=50, PETRI_TRANSITIONS=48} [2023-11-19 07:09:37,317 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -5 predicate places. [2023-11-19 07:09:37,318 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 48 transitions, 146 flow [2023-11-19 07:09:37,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:09:37,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:09:37,318 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:09:37,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:09:37,319 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-19 07:09:37,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:37,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1605625400, now seen corresponding path program 1 times [2023-11-19 07:09:37,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:37,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195408515] [2023-11-19 07:09:37,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:37,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:37,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:37,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:09:37,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:37,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195408515] [2023-11-19 07:09:37,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195408515] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:37,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:37,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:09:37,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903950120] [2023-11-19 07:09:37,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:37,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:09:37,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:37,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:09:37,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:09:37,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 160 [2023-11-19 07:09:37,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 48 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2023-11-19 07:09:37,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:09:37,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 160 [2023-11-19 07:09:37,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:09:37,582 INFO L124 PetriNetUnfolderBase]: 535/1155 cut-off events. [2023-11-19 07:09:37,582 INFO L125 PetriNetUnfolderBase]: For 152/153 co-relation queries the response was YES. [2023-11-19 07:09:37,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2315 conditions, 1155 events. 535/1155 cut-off events. For 152/153 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 7155 event pairs, 160 based on Foata normal form. 0/1118 useless extension candidates. Maximal degree in co-relation 2308. Up to 621 conditions per place. [2023-11-19 07:09:37,592 INFO L140 encePairwiseOnDemand]: 146/160 looper letters, 38 selfloop transitions, 10 changer transitions 0/68 dead transitions. [2023-11-19 07:09:37,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 68 transitions, 295 flow [2023-11-19 07:09:37,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:09:37,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:09:37,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 245 transitions. [2023-11-19 07:09:37,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5104166666666666 [2023-11-19 07:09:37,595 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 245 transitions. [2023-11-19 07:09:37,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 245 transitions. [2023-11-19 07:09:37,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:09:37,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 245 transitions. [2023-11-19 07:09:37,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2023-11-19 07:09:37,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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) [2023-11-19 07:09:37,601 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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) [2023-11-19 07:09:37,601 INFO L175 Difference]: Start difference. First operand has 50 places, 48 transitions, 146 flow. Second operand 3 states and 245 transitions. [2023-11-19 07:09:37,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 68 transitions, 295 flow [2023-11-19 07:09:37,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 68 transitions, 279 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:09:37,608 INFO L231 Difference]: Finished difference. Result has 52 places, 58 transitions, 222 flow [2023-11-19 07:09:37,609 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=52, PETRI_TRANSITIONS=58} [2023-11-19 07:09:37,612 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -3 predicate places. [2023-11-19 07:09:37,613 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 58 transitions, 222 flow [2023-11-19 07:09:37,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2023-11-19 07:09:37,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:09:37,613 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-19 07:09:37,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:09:37,614 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-19 07:09:37,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:37,614 INFO L85 PathProgramCache]: Analyzing trace with hash -53329235, now seen corresponding path program 1 times [2023-11-19 07:09:37,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:37,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436149651] [2023-11-19 07:09:37,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:37,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:09:37,636 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:09:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:09:37,648 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:09:37,649 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:09:37,649 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2023-11-19 07:09:37,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2023-11-19 07:09:37,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2023-11-19 07:09:37,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2023-11-19 07:09:37,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2023-11-19 07:09:37,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2023-11-19 07:09:37,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2023-11-19 07:09:37,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2023-11-19 07:09:37,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2023-11-19 07:09:37,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2023-11-19 07:09:37,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2023-11-19 07:09:37,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2023-11-19 07:09:37,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2023-11-19 07:09:37,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2023-11-19 07:09:37,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2023-11-19 07:09:37,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2023-11-19 07:09:37,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2023-11-19 07:09:37,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2023-11-19 07:09:37,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2023-11-19 07:09:37,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2023-11-19 07:09:37,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2023-11-19 07:09:37,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2023-11-19 07:09:37,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:09:37,654 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 07:09:37,655 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:09:37,655 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-19 07:09:37,697 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:09:37,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 133 transitions, 284 flow [2023-11-19 07:09:37,749 INFO L124 PetriNetUnfolderBase]: 13/170 cut-off events. [2023-11-19 07:09:37,750 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-19 07:09:37,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 170 events. 13/170 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 465 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 125. Up to 8 conditions per place. [2023-11-19 07:09:37,752 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 133 transitions, 284 flow [2023-11-19 07:09:37,756 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 133 transitions, 284 flow [2023-11-19 07:09:37,756 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:09:37,756 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 133 transitions, 284 flow [2023-11-19 07:09:37,759 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 133 transitions, 284 flow [2023-11-19 07:09:37,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 133 transitions, 284 flow [2023-11-19 07:09:37,791 INFO L124 PetriNetUnfolderBase]: 13/170 cut-off events. [2023-11-19 07:09:37,791 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-19 07:09:37,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 170 events. 13/170 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 465 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 125. Up to 8 conditions per place. [2023-11-19 07:09:37,800 INFO L119 LiptonReduction]: Number of co-enabled transitions 10500 [2023-11-19 07:09:39,055 INFO L134 LiptonReduction]: Checked pairs total: 43904 [2023-11-19 07:09:39,056 INFO L136 LiptonReduction]: Total number of compositions: 87 [2023-11-19 07:09:39,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:09:39,059 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;@40409e6e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:09:39,059 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2023-11-19 07:09:39,061 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:09:39,061 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-19 07:09:39,061 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:09:39,061 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:09:39,061 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:09:39,062 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-19 07:09:39,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:39,062 INFO L85 PathProgramCache]: Analyzing trace with hash 23781786, now seen corresponding path program 1 times [2023-11-19 07:09:39,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:39,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825222349] [2023-11-19 07:09:39,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:39,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:39,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:09:39,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:39,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825222349] [2023-11-19 07:09:39,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825222349] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:39,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:39,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:09:39,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583372707] [2023-11-19 07:09:39,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:39,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:09:39,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:39,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:09:39,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:09:39,092 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 220 [2023-11-19 07:09:39,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 81 transitions, 180 flow. Second operand has 2 states, 2 states have (on average 109.0) internal successors, (218), 2 states have internal predecessors, (218), 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) [2023-11-19 07:09:39,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:09:39,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 220 [2023-11-19 07:09:39,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:09:39,559 INFO L124 PetriNetUnfolderBase]: 1539/3601 cut-off events. [2023-11-19 07:09:39,559 INFO L125 PetriNetUnfolderBase]: For 340/340 co-relation queries the response was YES. [2023-11-19 07:09:39,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5945 conditions, 3601 events. 1539/3601 cut-off events. For 340/340 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 29752 event pairs, 1357 based on Foata normal form. 408/3495 useless extension candidates. Maximal degree in co-relation 796. Up to 2152 conditions per place. [2023-11-19 07:09:39,652 INFO L140 encePairwiseOnDemand]: 204/220 looper letters, 22 selfloop transitions, 0 changer transitions 0/62 dead transitions. [2023-11-19 07:09:39,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 62 transitions, 186 flow [2023-11-19 07:09:39,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:09:39,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:09:39,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 252 transitions. [2023-11-19 07:09:39,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5727272727272728 [2023-11-19 07:09:39,655 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 252 transitions. [2023-11-19 07:09:39,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 252 transitions. [2023-11-19 07:09:39,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:09:39,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 252 transitions. [2023-11-19 07:09:39,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 126.0) internal successors, (252), 2 states have internal predecessors, (252), 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) [2023-11-19 07:09:39,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 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) [2023-11-19 07:09:39,659 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 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) [2023-11-19 07:09:39,659 INFO L175 Difference]: Start difference. First operand has 79 places, 81 transitions, 180 flow. Second operand 2 states and 252 transitions. [2023-11-19 07:09:39,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 62 transitions, 186 flow [2023-11-19 07:09:39,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 62 transitions, 184 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-19 07:09:39,666 INFO L231 Difference]: Finished difference. Result has 67 places, 62 transitions, 140 flow [2023-11-19 07:09:39,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=140, PETRI_PLACES=67, PETRI_TRANSITIONS=62} [2023-11-19 07:09:39,668 INFO L281 CegarLoopForPetriNet]: 79 programPoint places, -12 predicate places. [2023-11-19 07:09:39,669 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 62 transitions, 140 flow [2023-11-19 07:09:39,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 109.0) internal successors, (218), 2 states have internal predecessors, (218), 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) [2023-11-19 07:09:39,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:09:39,669 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:09:39,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:09:39,670 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-19 07:09:39,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:39,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1379480701, now seen corresponding path program 1 times [2023-11-19 07:09:39,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:39,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632243703] [2023-11-19 07:09:39,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:39,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:39,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:09:39,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:39,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632243703] [2023-11-19 07:09:39,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632243703] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:39,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:39,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:09:39,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552454411] [2023-11-19 07:09:39,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:39,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:09:39,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:39,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:09:39,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:09:39,731 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 220 [2023-11-19 07:09:39,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 62 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:09:39,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:09:39,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 220 [2023-11-19 07:09:39,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:09:41,118 INFO L124 PetriNetUnfolderBase]: 5281/10950 cut-off events. [2023-11-19 07:09:41,119 INFO L125 PetriNetUnfolderBase]: For 363/363 co-relation queries the response was YES. [2023-11-19 07:09:41,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18801 conditions, 10950 events. 5281/10950 cut-off events. For 363/363 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 97948 event pairs, 2066 based on Foata normal form. 0/9793 useless extension candidates. Maximal degree in co-relation 18795. Up to 5845 conditions per place. [2023-11-19 07:09:41,240 INFO L140 encePairwiseOnDemand]: 208/220 looper letters, 48 selfloop transitions, 9 changer transitions 0/88 dead transitions. [2023-11-19 07:09:41,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 88 transitions, 316 flow [2023-11-19 07:09:41,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:09:41,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:09:41,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2023-11-19 07:09:41,245 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5363636363636364 [2023-11-19 07:09:41,245 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 354 transitions. [2023-11-19 07:09:41,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 354 transitions. [2023-11-19 07:09:41,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:09:41,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 354 transitions. [2023-11-19 07:09:41,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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) [2023-11-19 07:09:41,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 220.0) internal successors, (880), 4 states have internal predecessors, (880), 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) [2023-11-19 07:09:41,252 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 220.0) internal successors, (880), 4 states have internal predecessors, (880), 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) [2023-11-19 07:09:41,252 INFO L175 Difference]: Start difference. First operand has 67 places, 62 transitions, 140 flow. Second operand 3 states and 354 transitions. [2023-11-19 07:09:41,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 88 transitions, 316 flow [2023-11-19 07:09:41,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 88 transitions, 316 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:09:41,258 INFO L231 Difference]: Finished difference. Result has 71 places, 71 transitions, 218 flow [2023-11-19 07:09:41,258 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=71, PETRI_TRANSITIONS=71} [2023-11-19 07:09:41,260 INFO L281 CegarLoopForPetriNet]: 79 programPoint places, -8 predicate places. [2023-11-19 07:09:41,260 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 71 transitions, 218 flow [2023-11-19 07:09:41,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:09:41,261 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:09:41,261 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:09:41,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:09:41,261 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-19 07:09:41,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:41,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1863095062, now seen corresponding path program 1 times [2023-11-19 07:09:41,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:41,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380232252] [2023-11-19 07:09:41,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:41,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:41,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:09:41,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:41,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380232252] [2023-11-19 07:09:41,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380232252] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:41,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:41,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:09:41,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299910878] [2023-11-19 07:09:41,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:41,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:09:41,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:41,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:09:41,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:09:41,355 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 220 [2023-11-19 07:09:41,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 71 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2023-11-19 07:09:41,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:09:41,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 220 [2023-11-19 07:09:41,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:09:44,172 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([561] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][70], [40#L709-4true, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 61#L699-1true, 39#thr1Err3ASSERT_VIOLATIONDATA_RACEtrue, 138#(= |#race~r~0| 0), 133#true, Black: 136#true, 144#(= |#race~s~0| 0), 119#L701-1true, thr1Thread1of3ForFork0InUse]) [2023-11-19 07:09:44,172 INFO L294 olderBase$Statistics]: this new event has 37 ancestors and is cut-off event [2023-11-19 07:09:44,173 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-19 07:09:44,173 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-19 07:09:44,173 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-19 07:09:44,301 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([561] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][70], [40#L709-4true, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 61#L699-1true, 39#thr1Err3ASSERT_VIOLATIONDATA_RACEtrue, 138#(= |#race~r~0| 0), 6#L701-2true, 133#true, Black: 136#true, 144#(= |#race~s~0| 0), thr1Thread1of3ForFork0InUse]) [2023-11-19 07:09:44,301 INFO L294 olderBase$Statistics]: this new event has 38 ancestors and is cut-off event [2023-11-19 07:09:44,301 INFO L297 olderBase$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-11-19 07:09:44,301 INFO L297 olderBase$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-11-19 07:09:44,301 INFO L297 olderBase$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-11-19 07:09:44,562 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([561] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][70], [40#L709-4true, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 61#L699-1true, 39#thr1Err3ASSERT_VIOLATIONDATA_RACEtrue, 138#(= |#race~r~0| 0), 64#L16true, 133#true, Black: 136#true, 144#(= |#race~s~0| 0), thr1Thread1of3ForFork0InUse]) [2023-11-19 07:09:44,562 INFO L294 olderBase$Statistics]: this new event has 39 ancestors and is cut-off event [2023-11-19 07:09:44,563 INFO L297 olderBase$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-11-19 07:09:44,563 INFO L297 olderBase$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-11-19 07:09:44,563 INFO L297 olderBase$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-11-19 07:09:44,626 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([561] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][70], [thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 61#L699-1true, 39#thr1Err3ASSERT_VIOLATIONDATA_RACEtrue, 138#(= |#race~r~0| 0), 133#true, Black: 136#true, 144#(= |#race~s~0| 0), 89#L709-3true, 119#L701-1true, thr1Thread1of3ForFork0InUse]) [2023-11-19 07:09:44,626 INFO L294 olderBase$Statistics]: this new event has 40 ancestors and is cut-off event [2023-11-19 07:09:44,626 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-19 07:09:44,626 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-19 07:09:44,626 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-19 07:09:44,715 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([561] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][70], [thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 61#L699-1true, 39#thr1Err3ASSERT_VIOLATIONDATA_RACEtrue, 138#(= |#race~r~0| 0), 6#L701-2true, 133#true, Black: 136#true, 144#(= |#race~s~0| 0), 89#L709-3true, thr1Thread1of3ForFork0InUse]) [2023-11-19 07:09:44,715 INFO L294 olderBase$Statistics]: this new event has 41 ancestors and is cut-off event [2023-11-19 07:09:44,715 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-19 07:09:44,715 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-19 07:09:44,716 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-19 07:09:44,786 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([561] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][70], [thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 61#L699-1true, 39#thr1Err3ASSERT_VIOLATIONDATA_RACEtrue, 138#(= |#race~r~0| 0), 133#true, 64#L16true, Black: 136#true, 144#(= |#race~s~0| 0), 89#L709-3true, thr1Thread1of3ForFork0InUse]) [2023-11-19 07:09:44,786 INFO L294 olderBase$Statistics]: this new event has 42 ancestors and is cut-off event [2023-11-19 07:09:44,786 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-19 07:09:44,786 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-19 07:09:44,786 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-19 07:09:45,117 INFO L124 PetriNetUnfolderBase]: 18008/30614 cut-off events. [2023-11-19 07:09:45,117 INFO L125 PetriNetUnfolderBase]: For 5435/5470 co-relation queries the response was YES. [2023-11-19 07:09:45,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62648 conditions, 30614 events. 18008/30614 cut-off events. For 5435/5470 co-relation queries the response was YES. Maximal size of possible extension queue 1338. Compared 264819 event pairs, 5672 based on Foata normal form. 1/29369 useless extension candidates. Maximal degree in co-relation 62640. Up to 18924 conditions per place. [2023-11-19 07:09:45,414 INFO L140 encePairwiseOnDemand]: 199/220 looper letters, 63 selfloop transitions, 15 changer transitions 0/106 dead transitions. [2023-11-19 07:09:45,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 106 transitions, 472 flow [2023-11-19 07:09:45,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:09:45,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:09:45,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 336 transitions. [2023-11-19 07:09:45,417 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.509090909090909 [2023-11-19 07:09:45,417 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 336 transitions. [2023-11-19 07:09:45,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 336 transitions. [2023-11-19 07:09:45,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:09:45,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 336 transitions. [2023-11-19 07:09:45,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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) [2023-11-19 07:09:45,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 220.0) internal successors, (880), 4 states have internal predecessors, (880), 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) [2023-11-19 07:09:45,422 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 220.0) internal successors, (880), 4 states have internal predecessors, (880), 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) [2023-11-19 07:09:45,422 INFO L175 Difference]: Start difference. First operand has 71 places, 71 transitions, 218 flow. Second operand 3 states and 336 transitions. [2023-11-19 07:09:45,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 106 transitions, 472 flow [2023-11-19 07:09:45,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 106 transitions, 448 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:09:45,435 INFO L231 Difference]: Finished difference. Result has 73 places, 86 transitions, 332 flow [2023-11-19 07:09:45,436 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=73, PETRI_TRANSITIONS=86} [2023-11-19 07:09:45,437 INFO L281 CegarLoopForPetriNet]: 79 programPoint places, -6 predicate places. [2023-11-19 07:09:45,441 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 86 transitions, 332 flow [2023-11-19 07:09:45,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2023-11-19 07:09:45,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:09:45,441 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:09:45,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:09:45,442 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-19 07:09:45,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:45,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1520600781, now seen corresponding path program 1 times [2023-11-19 07:09:45,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:45,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333665541] [2023-11-19 07:09:45,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:45,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:09:45,463 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:09:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:09:45,488 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:09:45,488 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:09:45,488 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 29 remaining) [2023-11-19 07:09:45,489 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2023-11-19 07:09:45,489 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2023-11-19 07:09:45,489 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2023-11-19 07:09:45,489 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2023-11-19 07:09:45,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2023-11-19 07:09:45,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2023-11-19 07:09:45,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2023-11-19 07:09:45,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 29 remaining) [2023-11-19 07:09:45,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2023-11-19 07:09:45,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2023-11-19 07:09:45,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2023-11-19 07:09:45,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2023-11-19 07:09:45,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2023-11-19 07:09:45,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2023-11-19 07:09:45,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2023-11-19 07:09:45,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2023-11-19 07:09:45,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2023-11-19 07:09:45,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 29 remaining) [2023-11-19 07:09:45,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2023-11-19 07:09:45,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2023-11-19 07:09:45,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2023-11-19 07:09:45,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2023-11-19 07:09:45,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2023-11-19 07:09:45,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2023-11-19 07:09:45,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2023-11-19 07:09:45,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2023-11-19 07:09:45,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2023-11-19 07:09:45,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2023-11-19 07:09:45,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:09:45,494 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 07:09:45,500 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2023-11-19 07:09:45,500 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:09:45,529 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-19 07:09:45,531 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-19 07:09:45,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:09:45 BasicIcfg [2023-11-19 07:09:45,546 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:09:45,546 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:09:45,546 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:09:45,547 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:09:45,547 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:09:32" (3/4) ... [2023-11-19 07:09:45,549 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:09:45,550 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:09:45,551 INFO L158 Benchmark]: Toolchain (without parser) took 14082.66ms. Allocated memory was 144.7MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 115.4MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 304.4MB. Max. memory is 16.1GB. [2023-11-19 07:09:45,552 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 119.5MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:09:45,552 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.07ms. Allocated memory is still 144.7MB. Free memory was 115.4MB in the beginning and 95.9MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:09:45,552 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.63ms. Allocated memory is still 144.7MB. Free memory was 95.9MB in the beginning and 93.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:09:45,553 INFO L158 Benchmark]: Boogie Preprocessor took 63.12ms. Allocated memory is still 144.7MB. Free memory was 93.9MB in the beginning and 92.9MB in the end (delta: 987.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:09:45,553 INFO L158 Benchmark]: RCFGBuilder took 540.88ms. Allocated memory is still 144.7MB. Free memory was 92.4MB in the beginning and 77.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 07:09:45,554 INFO L158 Benchmark]: TraceAbstraction took 12797.74ms. Allocated memory was 144.7MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 76.6MB in the beginning and 1.3GB in the end (delta: -1.3GB). Peak memory consumption was 266.7MB. Max. memory is 16.1GB. [2023-11-19 07:09:45,554 INFO L158 Benchmark]: Witness Printer took 4.19ms. Allocated memory is still 1.7GB. Free memory is still 1.3GB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:09:45,557 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 119.5MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.07ms. Allocated memory is still 144.7MB. Free memory was 115.4MB in the beginning and 95.9MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.63ms. Allocated memory is still 144.7MB. Free memory was 95.9MB in the beginning and 93.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.12ms. Allocated memory is still 144.7MB. Free memory was 93.9MB in the beginning and 92.9MB in the end (delta: 987.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 540.88ms. Allocated memory is still 144.7MB. Free memory was 92.4MB in the beginning and 77.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 12797.74ms. Allocated memory was 144.7MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 76.6MB in the beginning and 1.3GB in the end (delta: -1.3GB). Peak memory consumption was 266.7MB. Max. memory is 16.1GB. * Witness Printer took 4.19ms. Allocated memory is still 1.7GB. Free memory is still 1.3GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 60 PlacesBefore, 18 PlacesAfterwards, 61 TransitionsBefore, 16 TransitionsAfterwards, 980 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 67 TotalNumberOfCompositions, 942 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 942, independent: 942, independent conditional: 0, independent unconditional: 942, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 522, independent: 522, independent conditional: 0, independent unconditional: 522, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 942, independent: 420, independent conditional: 0, independent unconditional: 420, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 522, unknown conditional: 0, unknown unconditional: 522] , Statistics on independence cache: Total cache size (in pairs): 10, Positive cache size: 10, Positive conditional cache size: 0, Positive unconditional cache size: 10, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1s, 95 PlacesBefore, 55 PlacesAfterwards, 97 TransitionsBefore, 56 TransitionsAfterwards, 4480 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 63 TotalNumberOfCompositions, 16587 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7081, independent: 6696, independent conditional: 0, independent unconditional: 6696, dependent: 385, dependent conditional: 0, dependent unconditional: 385, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2341, independent: 2275, independent conditional: 0, independent unconditional: 2275, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7081, independent: 4421, independent conditional: 0, independent unconditional: 4421, dependent: 319, dependent conditional: 0, dependent unconditional: 319, unknown: 2341, unknown conditional: 0, unknown unconditional: 2341] , Statistics on independence cache: Total cache size (in pairs): 401, Positive cache size: 360, Positive conditional cache size: 0, Positive unconditional cache size: 360, Negative cache size: 41, Negative conditional cache size: 0, Negative unconditional cache size: 41, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3s, 130 PlacesBefore, 79 PlacesAfterwards, 133 TransitionsBefore, 81 TransitionsAfterwards, 10500 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 1 ChoiceCompositions, 87 TotalNumberOfCompositions, 43904 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15195, independent: 14605, independent conditional: 0, independent unconditional: 14605, dependent: 590, dependent conditional: 0, dependent unconditional: 590, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5079, independent: 4977, independent conditional: 0, independent unconditional: 4977, dependent: 102, dependent conditional: 0, dependent unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15195, independent: 9628, independent conditional: 0, independent unconditional: 9628, dependent: 488, dependent conditional: 0, dependent unconditional: 488, unknown: 5079, unknown conditional: 0, unknown unconditional: 5079] , Statistics on independence cache: Total cache size (in pairs): 876, Positive cache size: 819, Positive conditional cache size: 0, Positive unconditional cache size: 819, Negative cache size: 57, Negative conditional cache size: 0, Negative unconditional cache size: 57, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 698]: Data race detected [2023-11-19 07:09:45,594 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-19 07:09:45,595 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-19 07:09:45,616 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-19 07:09:45,616 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated Data race detected The following path leads to a data race: [L688] 0 unsigned int r = 0; [L689] 0 unsigned int s = 0; [L707] 0 pthread_t t; VAL [r=0, s=0, t={3:0}] [L708] COND TRUE 0 1 [L709] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [r=0, s=0, t={3:0}] [L708] COND TRUE 0 1 [L696] 1 unsigned int l = 0; [L697] CALL 1 __VERIFIER_atomic_inc_r() [L692] EXPR 1 r!=-1 [L692] CALL 1 assume_abort_if_not(r!=-1) [L3] COND FALSE 1 !(!cond) [L692] RET 1 assume_abort_if_not(r!=-1) [L693] EXPR 1 r + 1 [L693] 1 r = r + 1 [L697] RET 1 __VERIFIER_atomic_inc_r() [L709] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [r=1, s=0, t={3:0}] [L698] 1 r == 1 VAL [arg={0:0}, arg={0:0}, l=0, r=1, s=0] [L696] 2 unsigned int l = 0; [L697] CALL 2 __VERIFIER_atomic_inc_r() [L692] EXPR 2 r!=-1 [L692] CALL 2 assume_abort_if_not(r!=-1) [L3] COND FALSE 2 !(!cond) [L692] RET 2 assume_abort_if_not(r!=-1) [L693] EXPR 2 r + 1 [L693] 2 r = r + 1 [L697] RET 2 __VERIFIER_atomic_inc_r() [L698] 1 r == 1 VAL [arg={0:0}, arg={0:0}, l=0, r=2, s=0] Now there is a data race on ~r~0 between C: r = r + 1 [693] and C: r == 1 [698] - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 91 locations, 15 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: 2.7s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 9 mSDtfsCounter, 29 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 124 locations, 22 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: 2.0s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 54 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 16 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=3, InterpolantAutomatonStates: 8, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 157 locations, 29 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: 7.8s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 18 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=332occurred in iteration=3, InterpolantAutomatonStates: 8, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:09:45,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3115da6-cc57-4f61-97ad-9b08f21ac188/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE