./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.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_9a01ccce-ce03-4819-9381-017f8724b095/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a01ccce-ce03-4819-9381-017f8724b095/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_9a01ccce-ce03-4819-9381-017f8724b095/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a01ccce-ce03-4819-9381-017f8724b095/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a01ccce-ce03-4819-9381-017f8724b095/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_9a01ccce-ce03-4819-9381-017f8724b095/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 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:47:10,618 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:47:10,689 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a01ccce-ce03-4819-9381-017f8724b095/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:47:10,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:47:10,696 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:47:10,734 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:47:10,735 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:47:10,735 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:47:10,736 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:47:10,737 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:47:10,738 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:47:10,738 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:47:10,739 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:47:10,739 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:47:10,740 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:47:10,740 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:47:10,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:47:10,746 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:47:10,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:47:10,747 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:47:10,747 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:47:10,748 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:47:10,748 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:47:10,749 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:47:10,749 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:47:10,749 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:47:10,750 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:47:10,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:47:10,751 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:47:10,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:47:10,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:10,754 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:47:10,754 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:47:10,754 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:47:10,755 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:47:10,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:47:10,755 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:47:10,756 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:47:10,770 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:47:10,770 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:47:10,771 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:47:10,772 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_9a01ccce-ce03-4819-9381-017f8724b095/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a01ccce-ce03-4819-9381-017f8724b095/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 [2023-11-19 07:47:11,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:47:11,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:47:11,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:47:11,200 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:47:11,201 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:47:11,202 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a01ccce-ce03-4819-9381-017f8724b095/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2023-11-19 07:47:14,241 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:47:14,640 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:47:14,641 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a01ccce-ce03-4819-9381-017f8724b095/sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2023-11-19 07:47:14,666 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a01ccce-ce03-4819-9381-017f8724b095/bin/uautomizer-verify-uCwYo4JHxu/data/95e6d8205/efa6f73ad62a42678e3209b6d338d505/FLAGf99951169 [2023-11-19 07:47:14,686 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a01ccce-ce03-4819-9381-017f8724b095/bin/uautomizer-verify-uCwYo4JHxu/data/95e6d8205/efa6f73ad62a42678e3209b6d338d505 [2023-11-19 07:47:14,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:47:14,694 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:47:14,698 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:14,698 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:47:14,704 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:47:14,706 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:14" (1/1) ... [2023-11-19 07:47:14,707 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46116a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:14, skipping insertion in model container [2023-11-19 07:47:14,707 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:14" (1/1) ... [2023-11-19 07:47:14,763 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:47:15,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:15,363 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:47:15,442 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:15,567 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:47:15,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:15 WrapperNode [2023-11-19 07:47:15,568 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:15,569 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:15,569 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:47:15,569 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:47:15,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:15" (1/1) ... [2023-11-19 07:47:15,616 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:15" (1/1) ... [2023-11-19 07:47:15,665 INFO L138 Inliner]: procedures = 365, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2023-11-19 07:47:15,666 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:15,667 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:47:15,667 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:47:15,667 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:47:15,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:15" (1/1) ... [2023-11-19 07:47:15,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:15" (1/1) ... [2023-11-19 07:47:15,696 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:15" (1/1) ... [2023-11-19 07:47:15,697 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:15" (1/1) ... [2023-11-19 07:47:15,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:15" (1/1) ... [2023-11-19 07:47:15,707 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:15" (1/1) ... [2023-11-19 07:47:15,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:15" (1/1) ... [2023-11-19 07:47:15,738 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:15" (1/1) ... [2023-11-19 07:47:15,750 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:47:15,754 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:47:15,754 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:47:15,755 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:47:15,756 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:15" (1/1) ... [2023-11-19 07:47:15,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:15,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a01ccce-ce03-4819-9381-017f8724b095/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:15,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a01ccce-ce03-4819-9381-017f8724b095/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:15,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a01ccce-ce03-4819-9381-017f8724b095/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:47:15,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:47:15,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:47:15,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:47:15,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:47:15,847 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:47:15,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:47:15,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:47:15,848 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 07:47:15,848 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 07:47:15,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:47:15,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:47:15,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:47:15,850 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 07:47:16,087 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:47:16,089 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:47:16,312 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:47:16,323 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:47:16,323 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:47:16,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:16 BoogieIcfgContainer [2023-11-19 07:47:16,328 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:47:16,331 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:47:16,331 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:47:16,335 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:47:16,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:47:14" (1/3) ... [2023-11-19 07:47:16,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74315d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:16, skipping insertion in model container [2023-11-19 07:47:16,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:15" (2/3) ... [2023-11-19 07:47:16,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74315d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:16, skipping insertion in model container [2023-11-19 07:47:16,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:16" (3/3) ... [2023-11-19 07:47:16,339 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_26-malloc_struct.i [2023-11-19 07:47:16,348 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:47:16,357 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:47:16,357 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-11-19 07:47:16,358 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:47:16,421 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:47:16,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 93 transitions, 190 flow [2023-11-19 07:47:16,521 INFO L124 PetriNetUnfolderBase]: 0/92 cut-off events. [2023-11-19 07:47:16,521 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:16,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 92 events. 0/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-19 07:47:16,525 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 93 transitions, 190 flow [2023-11-19 07:47:16,530 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 92 transitions, 187 flow [2023-11-19 07:47:16,540 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:47:16,565 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 92 transitions, 187 flow [2023-11-19 07:47:16,568 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 92 transitions, 187 flow [2023-11-19 07:47:16,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 92 transitions, 187 flow [2023-11-19 07:47:16,605 INFO L124 PetriNetUnfolderBase]: 0/92 cut-off events. [2023-11-19 07:47:16,605 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:16,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 92 events. 0/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-19 07:47:16,608 INFO L119 LiptonReduction]: Number of co-enabled transitions 1920 [2023-11-19 07:47:19,394 INFO L134 LiptonReduction]: Checked pairs total: 12244 [2023-11-19 07:47:19,395 INFO L136 LiptonReduction]: Total number of compositions: 54 [2023-11-19 07:47:19,448 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:47:19,455 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;@e2ac6f5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:47:19,455 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-11-19 07:47:19,458 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:47:19,458 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-19 07:47:19,458 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:19,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:19,459 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:47:19,459 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-19 07:47:19,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:19,469 INFO L85 PathProgramCache]: Analyzing trace with hash 300, now seen corresponding path program 1 times [2023-11-19 07:47:19,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:19,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971667012] [2023-11-19 07:47:19,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:19,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:19,607 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 07:47:19,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:19,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971667012] [2023-11-19 07:47:19,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971667012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:19,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:19,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:47:19,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707203371] [2023-11-19 07:47:19,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:19,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:47:19,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:19,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:47:19,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:47:19,651 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 147 [2023-11-19 07:47:19,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 45 transitions, 93 flow. Second operand has 2 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 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 07:47:19,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:19,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 147 [2023-11-19 07:47:19,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:19,734 INFO L124 PetriNetUnfolderBase]: 30/173 cut-off events. [2023-11-19 07:47:19,737 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:19,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 173 events. 30/173 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 700 event pairs, 30 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 242. Up to 74 conditions per place. [2023-11-19 07:47:19,745 INFO L140 encePairwiseOnDemand]: 145/147 looper letters, 13 selfloop transitions, 0 changer transitions 0/43 dead transitions. [2023-11-19 07:47:19,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 43 transitions, 115 flow [2023-11-19 07:47:19,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:47:19,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:47:19,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 199 transitions. [2023-11-19 07:47:19,764 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6768707482993197 [2023-11-19 07:47:19,765 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 199 transitions. [2023-11-19 07:47:19,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 199 transitions. [2023-11-19 07:47:19,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:19,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 199 transitions. [2023-11-19 07:47:19,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 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 07:47:19,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 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 07:47:19,787 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 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 07:47:19,789 INFO L175 Difference]: Start difference. First operand has 49 places, 45 transitions, 93 flow. Second operand 2 states and 199 transitions. [2023-11-19 07:47:19,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 43 transitions, 115 flow [2023-11-19 07:47:19,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 43 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:47:19,795 INFO L231 Difference]: Finished difference. Result has 47 places, 43 transitions, 88 flow [2023-11-19 07:47:19,797 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=88, PETRI_PLACES=47, PETRI_TRANSITIONS=43} [2023-11-19 07:47:19,804 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -2 predicate places. [2023-11-19 07:47:19,805 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 43 transitions, 88 flow [2023-11-19 07:47:19,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 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 07:47:19,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:19,806 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:47:19,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:47:19,807 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-19 07:47:19,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:19,808 INFO L85 PathProgramCache]: Analyzing trace with hash 285614288, now seen corresponding path program 1 times [2023-11-19 07:47:19,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:19,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834831864] [2023-11-19 07:47:19,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:19,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:20,031 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 07:47:20,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:20,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834831864] [2023-11-19 07:47:20,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834831864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:20,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:20,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:47:20,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682764858] [2023-11-19 07:47:20,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:20,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:20,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:20,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:20,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:20,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 147 [2023-11-19 07:47:20,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 43 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 07:47:20,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:20,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 147 [2023-11-19 07:47:20,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:20,168 INFO L124 PetriNetUnfolderBase]: 60/260 cut-off events. [2023-11-19 07:47:20,168 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:20,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 403 conditions, 260 events. 60/260 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1164 event pairs, 60 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 400. Up to 138 conditions per place. [2023-11-19 07:47:20,172 INFO L140 encePairwiseOnDemand]: 143/147 looper letters, 17 selfloop transitions, 1 changer transitions 0/40 dead transitions. [2023-11-19 07:47:20,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 118 flow [2023-11-19 07:47:20,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:20,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:47:20,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2023-11-19 07:47:20,175 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5850340136054422 [2023-11-19 07:47:20,176 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 258 transitions. [2023-11-19 07:47:20,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 258 transitions. [2023-11-19 07:47:20,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:20,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 258 transitions. [2023-11-19 07:47:20,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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 07:47:20,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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 07:47:20,180 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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 07:47:20,181 INFO L175 Difference]: Start difference. First operand has 47 places, 43 transitions, 88 flow. Second operand 3 states and 258 transitions. [2023-11-19 07:47:20,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 118 flow [2023-11-19 07:47:20,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 40 transitions, 118 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:47:20,183 INFO L231 Difference]: Finished difference. Result has 46 places, 40 transitions, 84 flow [2023-11-19 07:47:20,183 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=46, PETRI_TRANSITIONS=40} [2023-11-19 07:47:20,184 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2023-11-19 07:47:20,184 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 40 transitions, 84 flow [2023-11-19 07:47:20,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 07:47:20,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:20,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:20,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:47:20,186 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-19 07:47:20,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:20,186 INFO L85 PathProgramCache]: Analyzing trace with hash 4537460, now seen corresponding path program 1 times [2023-11-19 07:47:20,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:20,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779510487] [2023-11-19 07:47:20,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:20,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:20,692 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 07:47:20,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:20,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779510487] [2023-11-19 07:47:20,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779510487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:20,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:20,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:47:20,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765461808] [2023-11-19 07:47:20,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:20,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:47:20,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:20,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:47:20,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:47:20,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 147 [2023-11-19 07:47:20,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 40 transitions, 84 flow. Second operand has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 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 07:47:20,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:20,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 147 [2023-11-19 07:47:20,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:21,170 INFO L124 PetriNetUnfolderBase]: 193/474 cut-off events. [2023-11-19 07:47:21,171 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:21,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 898 conditions, 474 events. 193/474 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2311 event pairs, 74 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 894. Up to 286 conditions per place. [2023-11-19 07:47:21,176 INFO L140 encePairwiseOnDemand]: 132/147 looper letters, 56 selfloop transitions, 37 changer transitions 0/108 dead transitions. [2023-11-19 07:47:21,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 108 transitions, 406 flow [2023-11-19 07:47:21,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:47:21,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:47:21,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 532 transitions. [2023-11-19 07:47:21,179 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6031746031746031 [2023-11-19 07:47:21,180 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 532 transitions. [2023-11-19 07:47:21,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 532 transitions. [2023-11-19 07:47:21,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:21,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 532 transitions. [2023-11-19 07:47:21,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.66666666666667) internal successors, (532), 6 states have internal predecessors, (532), 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 07:47:21,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 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 07:47:21,187 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 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 07:47:21,187 INFO L175 Difference]: Start difference. First operand has 46 places, 40 transitions, 84 flow. Second operand 6 states and 532 transitions. [2023-11-19 07:47:21,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 108 transitions, 406 flow [2023-11-19 07:47:21,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 108 transitions, 405 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:47:21,191 INFO L231 Difference]: Finished difference. Result has 54 places, 78 transitions, 316 flow [2023-11-19 07:47:21,191 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=54, PETRI_TRANSITIONS=78} [2023-11-19 07:47:21,192 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2023-11-19 07:47:21,192 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 78 transitions, 316 flow [2023-11-19 07:47:21,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 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 07:47:21,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:21,193 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:21,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:47:21,194 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-19 07:47:21,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:21,194 INFO L85 PathProgramCache]: Analyzing trace with hash 431746594, now seen corresponding path program 1 times [2023-11-19 07:47:21,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:21,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743941790] [2023-11-19 07:47:21,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:21,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,489 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 07:47:21,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:21,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743941790] [2023-11-19 07:47:21,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743941790] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:21,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:21,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:47:21,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624121096] [2023-11-19 07:47:21,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:21,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:47:21,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:21,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:47:21,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:47:21,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 147 [2023-11-19 07:47:21,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 78 transitions, 316 flow. Second operand has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 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 07:47:21,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:21,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 147 [2023-11-19 07:47:21,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:21,890 INFO L124 PetriNetUnfolderBase]: 265/777 cut-off events. [2023-11-19 07:47:21,890 INFO L125 PetriNetUnfolderBase]: For 239/255 co-relation queries the response was YES. [2023-11-19 07:47:21,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1925 conditions, 777 events. 265/777 cut-off events. For 239/255 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4871 event pairs, 37 based on Foata normal form. 18/782 useless extension candidates. Maximal degree in co-relation 1917. Up to 242 conditions per place. [2023-11-19 07:47:21,897 INFO L140 encePairwiseOnDemand]: 136/147 looper letters, 75 selfloop transitions, 32 changer transitions 0/142 dead transitions. [2023-11-19 07:47:21,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 142 transitions, 746 flow [2023-11-19 07:47:21,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:47:21,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:47:21,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 556 transitions. [2023-11-19 07:47:21,900 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6303854875283447 [2023-11-19 07:47:21,900 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 556 transitions. [2023-11-19 07:47:21,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 556 transitions. [2023-11-19 07:47:21,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:21,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 556 transitions. [2023-11-19 07:47:21,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:21,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 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 07:47:21,906 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 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 07:47:21,907 INFO L175 Difference]: Start difference. First operand has 54 places, 78 transitions, 316 flow. Second operand 6 states and 556 transitions. [2023-11-19 07:47:21,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 142 transitions, 746 flow [2023-11-19 07:47:21,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 142 transitions, 746 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:47:21,915 INFO L231 Difference]: Finished difference. Result has 63 places, 104 transitions, 574 flow [2023-11-19 07:47:21,915 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=574, PETRI_PLACES=63, PETRI_TRANSITIONS=104} [2023-11-19 07:47:21,916 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 14 predicate places. [2023-11-19 07:47:21,916 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 104 transitions, 574 flow [2023-11-19 07:47:21,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 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 07:47:21,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:21,917 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:21,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:47:21,918 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-19 07:47:21,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:21,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1883342013, now seen corresponding path program 1 times [2023-11-19 07:47:21,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:21,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086509892] [2023-11-19 07:47:21,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:21,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:22,003 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 07:47:22,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:22,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086509892] [2023-11-19 07:47:22,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086509892] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:22,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:22,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:47:22,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434129387] [2023-11-19 07:47:22,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:22,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:22,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:22,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:22,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:22,023 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 147 [2023-11-19 07:47:22,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 104 transitions, 574 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:22,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:22,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 147 [2023-11-19 07:47:22,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:22,082 INFO L124 PetriNetUnfolderBase]: 45/203 cut-off events. [2023-11-19 07:47:22,082 INFO L125 PetriNetUnfolderBase]: For 102/103 co-relation queries the response was YES. [2023-11-19 07:47:22,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505 conditions, 203 events. 45/203 cut-off events. For 102/103 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 757 event pairs, 9 based on Foata normal form. 9/207 useless extension candidates. Maximal degree in co-relation 492. Up to 64 conditions per place. [2023-11-19 07:47:22,084 INFO L140 encePairwiseOnDemand]: 143/147 looper letters, 14 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2023-11-19 07:47:22,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 62 transitions, 296 flow [2023-11-19 07:47:22,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:22,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:47:22,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2023-11-19 07:47:22,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6326530612244898 [2023-11-19 07:47:22,086 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 279 transitions. [2023-11-19 07:47:22,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 279 transitions. [2023-11-19 07:47:22,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:22,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 279 transitions. [2023-11-19 07:47:22,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 07:47:22,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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 07:47:22,090 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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 07:47:22,090 INFO L175 Difference]: Start difference. First operand has 63 places, 104 transitions, 574 flow. Second operand 3 states and 279 transitions. [2023-11-19 07:47:22,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 62 transitions, 296 flow [2023-11-19 07:47:22,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 62 transitions, 256 flow, removed 13 selfloop flow, removed 7 redundant places. [2023-11-19 07:47:22,095 INFO L231 Difference]: Finished difference. Result has 57 places, 60 transitions, 224 flow [2023-11-19 07:47:22,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=57, PETRI_TRANSITIONS=60} [2023-11-19 07:47:22,096 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 8 predicate places. [2023-11-19 07:47:22,096 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 60 transitions, 224 flow [2023-11-19 07:47:22,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:22,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:22,097 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:22,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:47:22,097 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-19 07:47:22,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:22,098 INFO L85 PathProgramCache]: Analyzing trace with hash 2058288517, now seen corresponding path program 1 times [2023-11-19 07:47:22,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:22,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014436560] [2023-11-19 07:47:22,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:22,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:22,422 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 07:47:22,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:22,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014436560] [2023-11-19 07:47:22,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014436560] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:22,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:22,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:47:22,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826516801] [2023-11-19 07:47:22,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:22,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:47:22,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:22,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:47:22,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:47:22,552 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 147 [2023-11-19 07:47:22,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 60 transitions, 224 flow. Second operand has 6 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 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 07:47:22,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:22,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 147 [2023-11-19 07:47:22,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:22,835 INFO L124 PetriNetUnfolderBase]: 152/404 cut-off events. [2023-11-19 07:47:22,835 INFO L125 PetriNetUnfolderBase]: For 118/121 co-relation queries the response was YES. [2023-11-19 07:47:22,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1058 conditions, 404 events. 152/404 cut-off events. For 118/121 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1724 event pairs, 31 based on Foata normal form. 0/385 useless extension candidates. Maximal degree in co-relation 1048. Up to 280 conditions per place. [2023-11-19 07:47:22,839 INFO L140 encePairwiseOnDemand]: 133/147 looper letters, 53 selfloop transitions, 41 changer transitions 8/116 dead transitions. [2023-11-19 07:47:22,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 116 transitions, 614 flow [2023-11-19 07:47:22,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:47:22,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:47:22,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 526 transitions. [2023-11-19 07:47:22,842 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5963718820861678 [2023-11-19 07:47:22,843 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 526 transitions. [2023-11-19 07:47:22,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 526 transitions. [2023-11-19 07:47:22,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:22,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 526 transitions. [2023-11-19 07:47:22,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.66666666666667) internal successors, (526), 6 states have internal predecessors, (526), 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 07:47:22,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 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 07:47:22,848 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 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 07:47:22,849 INFO L175 Difference]: Start difference. First operand has 57 places, 60 transitions, 224 flow. Second operand 6 states and 526 transitions. [2023-11-19 07:47:22,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 116 transitions, 614 flow [2023-11-19 07:47:22,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 116 transitions, 602 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:47:22,855 INFO L231 Difference]: Finished difference. Result has 65 places, 96 transitions, 494 flow [2023-11-19 07:47:22,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=494, PETRI_PLACES=65, PETRI_TRANSITIONS=96} [2023-11-19 07:47:22,859 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 16 predicate places. [2023-11-19 07:47:22,859 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 96 transitions, 494 flow [2023-11-19 07:47:22,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 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 07:47:22,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:22,860 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:22,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:47:22,860 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-19 07:47:22,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:22,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1299235815, now seen corresponding path program 1 times [2023-11-19 07:47:22,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:22,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836155112] [2023-11-19 07:47:22,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:22,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,203 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 07:47:23,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:23,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836155112] [2023-11-19 07:47:23,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836155112] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:23,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:23,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:47:23,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691405205] [2023-11-19 07:47:23,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:23,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:47:23,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:23,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:47:23,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:47:23,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 147 [2023-11-19 07:47:23,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 96 transitions, 494 flow. Second operand has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 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 07:47:23,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:23,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 147 [2023-11-19 07:47:23,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:23,535 INFO L124 PetriNetUnfolderBase]: 151/413 cut-off events. [2023-11-19 07:47:23,535 INFO L125 PetriNetUnfolderBase]: For 299/316 co-relation queries the response was YES. [2023-11-19 07:47:23,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1364 conditions, 413 events. 151/413 cut-off events. For 299/316 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1812 event pairs, 27 based on Foata normal form. 0/401 useless extension candidates. Maximal degree in co-relation 1349. Up to 280 conditions per place. [2023-11-19 07:47:23,540 INFO L140 encePairwiseOnDemand]: 137/147 looper letters, 62 selfloop transitions, 25 changer transitions 5/124 dead transitions. [2023-11-19 07:47:23,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 124 transitions, 816 flow [2023-11-19 07:47:23,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:47:23,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:47:23,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 519 transitions. [2023-11-19 07:47:23,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5884353741496599 [2023-11-19 07:47:23,543 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 519 transitions. [2023-11-19 07:47:23,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 519 transitions. [2023-11-19 07:47:23,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:23,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 519 transitions. [2023-11-19 07:47:23,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.5) internal successors, (519), 6 states have internal predecessors, (519), 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 07:47:23,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 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 07:47:23,549 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 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 07:47:23,549 INFO L175 Difference]: Start difference. First operand has 65 places, 96 transitions, 494 flow. Second operand 6 states and 519 transitions. [2023-11-19 07:47:23,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 124 transitions, 816 flow [2023-11-19 07:47:23,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 124 transitions, 792 flow, removed 12 selfloop flow, removed 0 redundant places. [2023-11-19 07:47:23,557 INFO L231 Difference]: Finished difference. Result has 74 places, 115 transitions, 673 flow [2023-11-19 07:47:23,558 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=673, PETRI_PLACES=74, PETRI_TRANSITIONS=115} [2023-11-19 07:47:23,559 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 25 predicate places. [2023-11-19 07:47:23,559 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 115 transitions, 673 flow [2023-11-19 07:47:23,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 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 07:47:23,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:23,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:23,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:47:23,560 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-19 07:47:23,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:23,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1407489266, now seen corresponding path program 1 times [2023-11-19 07:47:23,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:23,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065017384] [2023-11-19 07:47:23,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:23,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:24,177 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 07:47:24,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:24,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065017384] [2023-11-19 07:47:24,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065017384] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:24,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:24,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:47:24,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695869923] [2023-11-19 07:47:24,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:24,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:47:24,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:24,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:47:24,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:47:24,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 147 [2023-11-19 07:47:24,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 115 transitions, 673 flow. Second operand has 8 states, 8 states have (on average 71.125) internal successors, (569), 8 states have internal predecessors, (569), 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 07:47:24,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:24,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 147 [2023-11-19 07:47:24,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:24,739 INFO L124 PetriNetUnfolderBase]: 142/368 cut-off events. [2023-11-19 07:47:24,739 INFO L125 PetriNetUnfolderBase]: For 392/410 co-relation queries the response was YES. [2023-11-19 07:47:24,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1386 conditions, 368 events. 142/368 cut-off events. For 392/410 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1497 event pairs, 17 based on Foata normal form. 9/373 useless extension candidates. Maximal degree in co-relation 1366. Up to 145 conditions per place. [2023-11-19 07:47:24,744 INFO L140 encePairwiseOnDemand]: 139/147 looper letters, 84 selfloop transitions, 34 changer transitions 15/166 dead transitions. [2023-11-19 07:47:24,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 166 transitions, 1247 flow [2023-11-19 07:47:24,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:47:24,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 07:47:24,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 613 transitions. [2023-11-19 07:47:24,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5212585034013606 [2023-11-19 07:47:24,748 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 613 transitions. [2023-11-19 07:47:24,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 613 transitions. [2023-11-19 07:47:24,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:24,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 613 transitions. [2023-11-19 07:47:24,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 76.625) internal successors, (613), 8 states have internal predecessors, (613), 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 07:47:24,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 147.0) internal successors, (1323), 9 states have internal predecessors, (1323), 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 07:47:24,754 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 147.0) internal successors, (1323), 9 states have internal predecessors, (1323), 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 07:47:24,755 INFO L175 Difference]: Start difference. First operand has 74 places, 115 transitions, 673 flow. Second operand 8 states and 613 transitions. [2023-11-19 07:47:24,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 166 transitions, 1247 flow [2023-11-19 07:47:24,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 166 transitions, 1178 flow, removed 31 selfloop flow, removed 1 redundant places. [2023-11-19 07:47:24,767 INFO L231 Difference]: Finished difference. Result has 85 places, 124 transitions, 777 flow [2023-11-19 07:47:24,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=605, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=777, PETRI_PLACES=85, PETRI_TRANSITIONS=124} [2023-11-19 07:47:24,768 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 36 predicate places. [2023-11-19 07:47:24,768 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 124 transitions, 777 flow [2023-11-19 07:47:24,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 71.125) internal successors, (569), 8 states have internal predecessors, (569), 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 07:47:24,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:24,769 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:24,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:47:24,770 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-19 07:47:24,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:24,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1511329020, now seen corresponding path program 1 times [2023-11-19 07:47:24,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:24,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212938280] [2023-11-19 07:47:24,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:24,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,298 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 07:47:25,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:25,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212938280] [2023-11-19 07:47:25,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212938280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:25,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:25,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:47:25,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032599327] [2023-11-19 07:47:25,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:25,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:47:25,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:25,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:47:25,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:47:25,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 147 [2023-11-19 07:47:25,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 124 transitions, 777 flow. Second operand has 8 states, 8 states have (on average 72.625) internal successors, (581), 8 states have internal predecessors, (581), 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 07:47:25,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:25,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 147 [2023-11-19 07:47:25,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:25,929 INFO L124 PetriNetUnfolderBase]: 188/470 cut-off events. [2023-11-19 07:47:25,929 INFO L125 PetriNetUnfolderBase]: For 686/697 co-relation queries the response was YES. [2023-11-19 07:47:25,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1933 conditions, 470 events. 188/470 cut-off events. For 686/697 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2068 event pairs, 21 based on Foata normal form. 17/486 useless extension candidates. Maximal degree in co-relation 1908. Up to 139 conditions per place. [2023-11-19 07:47:25,935 INFO L140 encePairwiseOnDemand]: 135/147 looper letters, 117 selfloop transitions, 60 changer transitions 19/210 dead transitions. [2023-11-19 07:47:25,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 210 transitions, 1738 flow [2023-11-19 07:47:25,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:47:25,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:47:25,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 602 transitions. [2023-11-19 07:47:25,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5850340136054422 [2023-11-19 07:47:25,939 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 602 transitions. [2023-11-19 07:47:25,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 602 transitions. [2023-11-19 07:47:25,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:25,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 602 transitions. [2023-11-19 07:47:25,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 86.0) internal successors, (602), 7 states have internal predecessors, (602), 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 07:47:25,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 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 07:47:25,945 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 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 07:47:25,945 INFO L175 Difference]: Start difference. First operand has 85 places, 124 transitions, 777 flow. Second operand 7 states and 602 transitions. [2023-11-19 07:47:25,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 210 transitions, 1738 flow [2023-11-19 07:47:25,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 210 transitions, 1707 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-11-19 07:47:25,959 INFO L231 Difference]: Finished difference. Result has 91 places, 141 transitions, 1086 flow [2023-11-19 07:47:25,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1086, PETRI_PLACES=91, PETRI_TRANSITIONS=141} [2023-11-19 07:47:25,961 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 42 predicate places. [2023-11-19 07:47:25,961 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 141 transitions, 1086 flow [2023-11-19 07:47:25,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 72.625) internal successors, (581), 8 states have internal predecessors, (581), 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 07:47:25,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:25,962 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:25,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:47:25,962 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-19 07:47:25,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:25,963 INFO L85 PathProgramCache]: Analyzing trace with hash 843054951, now seen corresponding path program 1 times [2023-11-19 07:47:25,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:25,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702055017] [2023-11-19 07:47:25,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:25,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:26,514 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 07:47:26,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:26,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702055017] [2023-11-19 07:47:26,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702055017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:26,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:26,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:47:26,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763345683] [2023-11-19 07:47:26,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:26,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:47:26,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:26,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:47:26,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:47:26,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 147 [2023-11-19 07:47:26,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 141 transitions, 1086 flow. Second operand has 9 states, 9 states have (on average 71.33333333333333) internal successors, (642), 9 states have internal predecessors, (642), 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 07:47:26,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:26,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 147 [2023-11-19 07:47:26,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:27,303 INFO L124 PetriNetUnfolderBase]: 151/422 cut-off events. [2023-11-19 07:47:27,303 INFO L125 PetriNetUnfolderBase]: For 1189/1203 co-relation queries the response was YES. [2023-11-19 07:47:27,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2015 conditions, 422 events. 151/422 cut-off events. For 1189/1203 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1956 event pairs, 20 based on Foata normal form. 2/420 useless extension candidates. Maximal degree in co-relation 1988. Up to 179 conditions per place. [2023-11-19 07:47:27,310 INFO L140 encePairwiseOnDemand]: 139/147 looper letters, 90 selfloop transitions, 34 changer transitions 10/174 dead transitions. [2023-11-19 07:47:27,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 174 transitions, 1667 flow [2023-11-19 07:47:27,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:47:27,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:47:27,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 748 transitions. [2023-11-19 07:47:27,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.508843537414966 [2023-11-19 07:47:27,315 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 748 transitions. [2023-11-19 07:47:27,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 748 transitions. [2023-11-19 07:47:27,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:27,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 748 transitions. [2023-11-19 07:47:27,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 74.8) internal successors, (748), 10 states have internal predecessors, (748), 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 07:47:27,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 147.0) internal successors, (1617), 11 states have internal predecessors, (1617), 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 07:47:27,323 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 147.0) internal successors, (1617), 11 states have internal predecessors, (1617), 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 07:47:27,324 INFO L175 Difference]: Start difference. First operand has 91 places, 141 transitions, 1086 flow. Second operand 10 states and 748 transitions. [2023-11-19 07:47:27,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 174 transitions, 1667 flow [2023-11-19 07:47:27,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 174 transitions, 1638 flow, removed 8 selfloop flow, removed 1 redundant places. [2023-11-19 07:47:27,347 INFO L231 Difference]: Finished difference. Result has 102 places, 137 transitions, 1105 flow [2023-11-19 07:47:27,348 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=1065, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1105, PETRI_PLACES=102, PETRI_TRANSITIONS=137} [2023-11-19 07:47:27,349 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 53 predicate places. [2023-11-19 07:47:27,349 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 137 transitions, 1105 flow [2023-11-19 07:47:27,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 71.33333333333333) internal successors, (642), 9 states have internal predecessors, (642), 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 07:47:27,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:27,351 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:27,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:47:27,352 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-19 07:47:27,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:27,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1040723775, now seen corresponding path program 2 times [2023-11-19 07:47:27,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:27,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627903796] [2023-11-19 07:47:27,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:27,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:27,785 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 07:47:27,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:27,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627903796] [2023-11-19 07:47:27,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627903796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:27,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:27,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:47:27,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158799978] [2023-11-19 07:47:27,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:27,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:47:27,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:27,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:47:27,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:47:28,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 147 [2023-11-19 07:47:28,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 137 transitions, 1105 flow. Second operand has 9 states, 9 states have (on average 71.33333333333333) internal successors, (642), 9 states have internal predecessors, (642), 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 07:47:28,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:28,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 147 [2023-11-19 07:47:28,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:28,430 INFO L124 PetriNetUnfolderBase]: 148/425 cut-off events. [2023-11-19 07:47:28,430 INFO L125 PetriNetUnfolderBase]: For 1408/1422 co-relation queries the response was YES. [2023-11-19 07:47:28,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2093 conditions, 425 events. 148/425 cut-off events. For 1408/1422 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2000 event pairs, 20 based on Foata normal form. 2/423 useless extension candidates. Maximal degree in co-relation 2063. Up to 239 conditions per place. [2023-11-19 07:47:28,437 INFO L140 encePairwiseOnDemand]: 135/147 looper letters, 70 selfloop transitions, 38 changer transitions 8/156 dead transitions. [2023-11-19 07:47:28,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 156 transitions, 1474 flow [2023-11-19 07:47:28,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:47:28,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-19 07:47:28,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 823 transitions. [2023-11-19 07:47:28,442 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5089672232529375 [2023-11-19 07:47:28,442 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 823 transitions. [2023-11-19 07:47:28,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 823 transitions. [2023-11-19 07:47:28,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:28,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 823 transitions. [2023-11-19 07:47:28,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 74.81818181818181) internal successors, (823), 11 states have internal predecessors, (823), 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 07:47:28,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 147.0) internal successors, (1764), 12 states have internal predecessors, (1764), 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 07:47:28,451 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 147.0) internal successors, (1764), 12 states have internal predecessors, (1764), 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 07:47:28,452 INFO L175 Difference]: Start difference. First operand has 102 places, 137 transitions, 1105 flow. Second operand 11 states and 823 transitions. [2023-11-19 07:47:28,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 156 transitions, 1474 flow [2023-11-19 07:47:28,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 156 transitions, 1372 flow, removed 9 selfloop flow, removed 9 redundant places. [2023-11-19 07:47:28,472 INFO L231 Difference]: Finished difference. Result has 107 places, 142 transitions, 1193 flow [2023-11-19 07:47:28,472 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=1027, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1193, PETRI_PLACES=107, PETRI_TRANSITIONS=142} [2023-11-19 07:47:28,473 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 58 predicate places. [2023-11-19 07:47:28,473 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 142 transitions, 1193 flow [2023-11-19 07:47:28,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 71.33333333333333) internal successors, (642), 9 states have internal predecessors, (642), 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 07:47:28,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:28,474 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:28,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:47:28,475 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-19 07:47:28,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:28,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1369364455, now seen corresponding path program 3 times [2023-11-19 07:47:28,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:28,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071890097] [2023-11-19 07:47:28,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:28,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:28,998 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 07:47:28,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:28,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071890097] [2023-11-19 07:47:28,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071890097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:28,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:28,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:47:28,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382227885] [2023-11-19 07:47:29,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:29,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:47:29,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:29,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:47:29,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:47:29,298 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 147 [2023-11-19 07:47:29,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 142 transitions, 1193 flow. Second operand has 9 states, 9 states have (on average 71.33333333333333) internal successors, (642), 9 states have internal predecessors, (642), 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 07:47:29,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:29,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 147 [2023-11-19 07:47:29,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:29,547 INFO L124 PetriNetUnfolderBase]: 148/419 cut-off events. [2023-11-19 07:47:29,547 INFO L125 PetriNetUnfolderBase]: For 1409/1423 co-relation queries the response was YES. [2023-11-19 07:47:29,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2099 conditions, 419 events. 148/419 cut-off events. For 1409/1423 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1949 event pairs, 20 based on Foata normal form. 2/417 useless extension candidates. Maximal degree in co-relation 2065. Up to 181 conditions per place. [2023-11-19 07:47:29,554 INFO L140 encePairwiseOnDemand]: 139/147 looper letters, 86 selfloop transitions, 37 changer transitions 9/172 dead transitions. [2023-11-19 07:47:29,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 172 transitions, 1740 flow [2023-11-19 07:47:29,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:47:29,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-19 07:47:29,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 812 transitions. [2023-11-19 07:47:29,558 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5021645021645021 [2023-11-19 07:47:29,558 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 812 transitions. [2023-11-19 07:47:29,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 812 transitions. [2023-11-19 07:47:29,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:29,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 812 transitions. [2023-11-19 07:47:29,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 73.81818181818181) internal successors, (812), 11 states have internal predecessors, (812), 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 07:47:29,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 147.0) internal successors, (1764), 12 states have internal predecessors, (1764), 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 07:47:29,566 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 147.0) internal successors, (1764), 12 states have internal predecessors, (1764), 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 07:47:29,566 INFO L175 Difference]: Start difference. First operand has 107 places, 142 transitions, 1193 flow. Second operand 11 states and 812 transitions. [2023-11-19 07:47:29,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 172 transitions, 1740 flow [2023-11-19 07:47:29,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 172 transitions, 1692 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-19 07:47:29,589 INFO L231 Difference]: Finished difference. Result has 106 places, 136 transitions, 1177 flow [2023-11-19 07:47:29,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=1139, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1177, PETRI_PLACES=106, PETRI_TRANSITIONS=136} [2023-11-19 07:47:29,591 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 57 predicate places. [2023-11-19 07:47:29,591 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 136 transitions, 1177 flow [2023-11-19 07:47:29,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 71.33333333333333) internal successors, (642), 9 states have internal predecessors, (642), 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 07:47:29,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:29,592 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:29,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:47:29,593 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-19 07:47:29,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:29,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1461642243, now seen corresponding path program 1 times [2023-11-19 07:47:29,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:29,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140665185] [2023-11-19 07:47:29,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:29,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:29,623 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:47:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:29,663 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:47:29,663 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:47:29,665 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2023-11-19 07:47:29,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2023-11-19 07:47:29,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2023-11-19 07:47:29,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2023-11-19 07:47:29,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2023-11-19 07:47:29,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2023-11-19 07:47:29,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2023-11-19 07:47:29,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2023-11-19 07:47:29,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2023-11-19 07:47:29,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2023-11-19 07:47:29,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2023-11-19 07:47:29,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2023-11-19 07:47:29,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2023-11-19 07:47:29,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2023-11-19 07:47:29,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:47:29,670 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:29,678 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:47:29,678 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:47:29,708 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre35 could not be translated [2023-11-19 07:47:29,709 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated [2023-11-19 07:47:29,710 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:47:29,710 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-19 07:47:29,711 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-19 07:47:29,711 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:47:29,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:47:29 BasicIcfg [2023-11-19 07:47:29,718 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:47:29,719 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:47:29,719 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:47:29,719 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:47:29,719 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:16" (3/4) ... [2023-11-19 07:47:29,721 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:47:29,723 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:47:29,723 INFO L158 Benchmark]: Toolchain (without parser) took 15029.28ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 138.0MB in the beginning and 120.7MB in the end (delta: 17.3MB). Peak memory consumption was 94.7MB. Max. memory is 16.1GB. [2023-11-19 07:47:29,724 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:47:29,724 INFO L158 Benchmark]: CACSL2BoogieTranslator took 870.27ms. Allocated memory is still 169.9MB. Free memory was 138.0MB in the beginning and 99.6MB in the end (delta: 38.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-19 07:47:29,724 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.08ms. Allocated memory is still 169.9MB. Free memory was 99.6MB in the beginning and 97.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:47:29,725 INFO L158 Benchmark]: Boogie Preprocessor took 86.49ms. Allocated memory is still 169.9MB. Free memory was 97.3MB in the beginning and 95.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:47:29,725 INFO L158 Benchmark]: RCFGBuilder took 574.37ms. Allocated memory is still 169.9MB. Free memory was 95.3MB in the beginning and 127.4MB in the end (delta: -32.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:47:29,725 INFO L158 Benchmark]: TraceAbstraction took 13387.04ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 126.3MB in the beginning and 121.7MB in the end (delta: 4.6MB). Peak memory consumption was 83.1MB. Max. memory is 16.1GB. [2023-11-19 07:47:29,726 INFO L158 Benchmark]: Witness Printer took 4.13ms. Allocated memory is still 247.5MB. Free memory was 121.7MB in the beginning and 120.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:47:29,728 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 870.27ms. Allocated memory is still 169.9MB. Free memory was 138.0MB in the beginning and 99.6MB in the end (delta: 38.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.08ms. Allocated memory is still 169.9MB. Free memory was 99.6MB in the beginning and 97.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.49ms. Allocated memory is still 169.9MB. Free memory was 97.3MB in the beginning and 95.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 574.37ms. Allocated memory is still 169.9MB. Free memory was 95.3MB in the beginning and 127.4MB in the end (delta: -32.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 13387.04ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 126.3MB in the beginning and 121.7MB in the end (delta: 4.6MB). Peak memory consumption was 83.1MB. Max. memory is 16.1GB. * Witness Printer took 4.13ms. Allocated memory is still 247.5MB. Free memory was 121.7MB in the beginning and 120.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 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: 2.8s, 96 PlacesBefore, 49 PlacesAfterwards, 92 TransitionsBefore, 45 TransitionsAfterwards, 1920 CoEnabledTransitionPairs, 6 FixpointIterations, 33 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, 12244 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3042, independent: 2520, independent conditional: 0, independent unconditional: 2520, dependent: 522, dependent conditional: 0, dependent unconditional: 522, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 861, independent: 782, independent conditional: 0, independent unconditional: 782, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3042, independent: 1738, independent conditional: 0, independent unconditional: 1738, dependent: 443, dependent conditional: 0, dependent unconditional: 443, unknown: 861, unknown conditional: 0, unknown unconditional: 861] , Statistics on independence cache: Total cache size (in pairs): 207, Positive cache size: 163, Positive conditional cache size: 0, Positive unconditional cache size: 163, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1245]: Data race detected [2023-11-19 07:47:29,747 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre35 could not be translated [2023-11-19 07:47:29,748 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated [2023-11-19 07:47:29,749 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:47:29,749 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-19 07:47:29,750 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-19 07:47:29,750 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:47:29,759 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre35 could not be translated [2023-11-19 07:47:29,760 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated [2023-11-19 07:47:29,761 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:47:29,761 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-19 07:47:29,761 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-19 07:47:29,761 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated Data race detected The following path leads to a data race: [L1227] 0 data *d; [L1228] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1237] 0 pthread_t id; [L1238] 0 data *z; [L1239] 0 d = malloc(sizeof(data)) [L1240] 0 z = d [L1241] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, d={-2:0}, id={9:0}, m={1:0}, z={-2:0}] [L1243] EXPR 0 d->x VAL [arg={0:0}, d={-2:0}, id={9:0}, m={1:0}, z={-2:0}] [L1243] 0 printf("%d\n",d->x) [L1231] EXPR 1 d->x VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1231] 1 d->x = 3 VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1232] EXPR 1 d->y VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1232] 1 d->y = 8 VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1245] EXPR 0 z->y VAL [arg={0:0}, arg={0:0}, d={-2:0}, id={9:0}, m={1:0}, z={-2:0}] [L1232] 1 d->y = 8 VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1245] 0 printf("%d\n",z->y) VAL [arg={0:0}, arg={0:0}, d={-2:0}, id={9:0}, m={1:0}, z={-2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d->y = 8 [1232] * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d = malloc(sizeof(data)) [1239] and C: printf("%d\n",z->y) [1245] - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 126 locations, 14 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: 13.2s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1067 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 694 mSDsluCounter, 77 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 435 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3466 IncrementalHoareTripleChecker+Invalid, 3901 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 435 mSolverCounterUnsat, 59 mSDtfsCounter, 3466 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1193occurred in iteration=11, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 239 NumberOfCodeBlocks, 239 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 2164 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 07:47:29,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a01ccce-ce03-4819-9381-017f8724b095/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE