./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfc222d-9863-44bd-92ca-28f531e97d97/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfc222d-9863-44bd-92ca-28f531e97d97/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfc222d-9863-44bd-92ca-28f531e97d97/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfc222d-9863-44bd-92ca-28f531e97d97/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfc222d-9863-44bd-92ca-28f531e97d97/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfc222d-9863-44bd-92ca-28f531e97d97/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29686c593874684b7702dd35cbbbd25416d0d0dde1b2c7e324de66da32235cfd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:57:07,984 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:57:08,071 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfc222d-9863-44bd-92ca-28f531e97d97/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 21:57:08,078 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:57:08,082 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:57:08,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:57:08,122 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:57:08,123 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:57:08,124 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:57:08,125 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:57:08,125 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:57:08,125 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:57:08,127 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:57:08,130 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:57:08,131 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:57:08,131 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:57:08,131 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:57:08,132 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:57:08,132 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:57:08,132 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:57:08,132 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:57:08,133 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:57:08,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:57:08,134 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:57:08,134 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:57:08,135 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 21:57:08,135 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:57:08,135 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:57:08,136 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:57:08,136 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:57:08,136 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:57:08,137 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:57:08,137 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:57:08,137 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:57:08,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:57:08,138 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:57:08,138 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:57:08,139 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:57:08,139 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:57:08,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:57:08,140 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:57:08,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:57:08,140 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:57:08,141 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:57:08,141 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_1dfc222d-9863-44bd-92ca-28f531e97d97/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfc222d-9863-44bd-92ca-28f531e97d97/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29686c593874684b7702dd35cbbbd25416d0d0dde1b2c7e324de66da32235cfd [2024-10-31 21:57:08,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:57:08,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:57:08,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:57:08,494 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:57:08,495 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:57:08,497 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfc222d-9863-44bd-92ca-28f531e97d97/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i Unable to find full path for "g++" [2024-10-31 21:57:10,915 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:57:11,386 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:57:11,388 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfc222d-9863-44bd-92ca-28f531e97d97/sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i [2024-10-31 21:57:11,409 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfc222d-9863-44bd-92ca-28f531e97d97/bin/uautomizer-verify-4GaUIPS5ZU/data/10dcda08a/a897ac9de2c548079f5cd67534015ab8/FLAG8c481659a [2024-10-31 21:57:11,526 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfc222d-9863-44bd-92ca-28f531e97d97/bin/uautomizer-verify-4GaUIPS5ZU/data/10dcda08a/a897ac9de2c548079f5cd67534015ab8 [2024-10-31 21:57:11,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:57:11,532 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:57:11,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:57:11,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:57:11,544 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:57:11,545 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:57:11" (1/1) ... [2024-10-31 21:57:11,547 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3235e836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:11, skipping insertion in model container [2024-10-31 21:57:11,547 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:57:11" (1/1) ... [2024-10-31 21:57:11,618 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:57:12,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:57:12,290 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:57:12,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:57:12,445 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:57:12,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12 WrapperNode [2024-10-31 21:57:12,446 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:57:12,448 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:57:12,448 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:57:12,448 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:57:12,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,484 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,524 INFO L138 Inliner]: procedures = 163, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2024-10-31 21:57:12,525 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:57:12,525 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:57:12,527 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:57:12,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:57:12,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,544 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,577 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [5, 5]. 50 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [5, 5]. The 0 writes are split as follows [0, 0]. [2024-10-31 21:57:12,579 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,579 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,584 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,596 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,599 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:57:12,606 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:57:12,606 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:57:12,607 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:57:12,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:57:12,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfc222d-9863-44bd-92ca-28f531e97d97/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:12,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfc222d-9863-44bd-92ca-28f531e97d97/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:12,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfc222d-9863-44bd-92ca-28f531e97d97/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:57:12,705 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 21:57:12,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:57:12,706 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 21:57:12,706 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 21:57:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2024-10-31 21:57:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:57:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 21:57:12,708 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 21:57:12,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:57:12,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:57:12,715 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 21:57:12,888 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:57:12,890 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:57:13,130 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 21:57:13,131 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:57:13,268 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:57:13,269 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 21:57:13,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:57:13 BoogieIcfgContainer [2024-10-31 21:57:13,269 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:57:13,272 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:57:13,272 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:57:13,275 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:57:13,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:57:11" (1/3) ... [2024-10-31 21:57:13,277 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fa83f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:57:13, skipping insertion in model container [2024-10-31 21:57:13,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (2/3) ... [2024-10-31 21:57:13,277 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fa83f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:57:13, skipping insertion in model container [2024-10-31 21:57:13,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:57:13" (3/3) ... [2024-10-31 21:57:13,279 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_42-trylock_2mutex.i [2024-10-31 21:57:13,300 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:57:13,301 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-31 21:57:13,302 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 21:57:13,389 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 21:57:13,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 41 transitions, 89 flow [2024-10-31 21:57:13,465 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-10-31 21:57:13,466 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 21:57:13,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 40 events. 2/40 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 67 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2024-10-31 21:57:13,469 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 41 transitions, 89 flow [2024-10-31 21:57:13,474 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 38 transitions, 79 flow [2024-10-31 21:57:13,484 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:57:13,496 INFO L333 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, 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;@657aa4a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:57:13,496 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-10-31 21:57:13,508 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:57:13,509 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-10-31 21:57:13,509 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:57:13,509 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:13,514 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 21:57:13,514 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-10-31 21:57:13,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:13,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1791064323, now seen corresponding path program 1 times [2024-10-31 21:57:13,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:13,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459517713] [2024-10-31 21:57:13,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:13,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:13,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:13,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:13,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:13,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459517713] [2024-10-31 21:57:13,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459517713] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:13,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:13,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:57:13,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806021837] [2024-10-31 21:57:13,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:13,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:57:13,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:13,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:57:13,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:57:14,005 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-10-31 21:57:14,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 38 transitions, 79 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-10-31 21:57:14,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:14,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-10-31 21:57:14,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:14,296 INFO L124 PetriNetUnfolderBase]: 98/288 cut-off events. [2024-10-31 21:57:14,297 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:57:14,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 288 events. 98/288 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1394 event pairs, 31 based on Foata normal form. 11/276 useless extension candidates. Maximal degree in co-relation 500. Up to 175 conditions per place. [2024-10-31 21:57:14,303 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 39 selfloop transitions, 6 changer transitions 0/59 dead transitions. [2024-10-31 21:57:14,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 59 transitions, 211 flow [2024-10-31 21:57:14,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:57:14,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:57:14,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2024-10-31 21:57:14,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6195121951219512 [2024-10-31 21:57:14,324 INFO L175 Difference]: Start difference. First operand has 40 places, 38 transitions, 79 flow. Second operand 5 states and 127 transitions. [2024-10-31 21:57:14,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 59 transitions, 211 flow [2024-10-31 21:57:14,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 59 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 21:57:14,331 INFO L231 Difference]: Finished difference. Result has 46 places, 42 transitions, 120 flow [2024-10-31 21:57:14,333 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=120, PETRI_PLACES=46, PETRI_TRANSITIONS=42} [2024-10-31 21:57:14,338 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2024-10-31 21:57:14,338 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 120 flow [2024-10-31 21:57:14,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-10-31 21:57:14,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:14,339 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:14,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:57:14,341 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-10-31 21:57:14,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:14,343 INFO L85 PathProgramCache]: Analyzing trace with hash 647097845, now seen corresponding path program 1 times [2024-10-31 21:57:14,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:14,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851891568] [2024-10-31 21:57:14,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:14,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:14,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:14,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:14,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851891568] [2024-10-31 21:57:14,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851891568] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:14,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:14,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 21:57:14,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797600715] [2024-10-31 21:57:14,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:14,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:57:14,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:14,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:57:14,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:57:14,503 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-10-31 21:57:14,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-10-31 21:57:14,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:14,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-10-31 21:57:14,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:14,692 INFO L124 PetriNetUnfolderBase]: 106/308 cut-off events. [2024-10-31 21:57:14,692 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2024-10-31 21:57:14,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 308 events. 106/308 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1511 event pairs, 60 based on Foata normal form. 13/295 useless extension candidates. Maximal degree in co-relation 597. Up to 148 conditions per place. [2024-10-31 21:57:14,698 INFO L140 encePairwiseOnDemand]: 37/41 looper letters, 33 selfloop transitions, 2 changer transitions 3/52 dead transitions. [2024-10-31 21:57:14,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 52 transitions, 218 flow [2024-10-31 21:57:14,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:57:14,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:57:14,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2024-10-31 21:57:14,701 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6504065040650406 [2024-10-31 21:57:14,701 INFO L175 Difference]: Start difference. First operand has 46 places, 42 transitions, 120 flow. Second operand 3 states and 80 transitions. [2024-10-31 21:57:14,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 52 transitions, 218 flow [2024-10-31 21:57:14,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 52 transitions, 218 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:57:14,705 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 130 flow [2024-10-31 21:57:14,705 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2024-10-31 21:57:14,706 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2024-10-31 21:57:14,706 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 130 flow [2024-10-31 21:57:14,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-10-31 21:57:14,709 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:14,709 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:14,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:57:14,710 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-10-31 21:57:14,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:14,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1512721311, now seen corresponding path program 1 times [2024-10-31 21:57:14,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:14,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283014492] [2024-10-31 21:57:14,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:14,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:14,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:14,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:14,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283014492] [2024-10-31 21:57:14,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283014492] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:14,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:14,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:57:14,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080163589] [2024-10-31 21:57:14,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:14,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:57:14,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:14,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:57:14,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:57:14,866 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-10-31 21:57:14,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-10-31 21:57:14,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:14,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-10-31 21:57:14,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:15,006 INFO L124 PetriNetUnfolderBase]: 106/286 cut-off events. [2024-10-31 21:57:15,006 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2024-10-31 21:57:15,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 286 events. 106/286 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1312 event pairs, 50 based on Foata normal form. 22/295 useless extension candidates. Maximal degree in co-relation 603. Up to 126 conditions per place. [2024-10-31 21:57:15,008 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 35 selfloop transitions, 3 changer transitions 10/60 dead transitions. [2024-10-31 21:57:15,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 60 transitions, 266 flow [2024-10-31 21:57:15,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:57:15,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 21:57:15,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2024-10-31 21:57:15,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5914634146341463 [2024-10-31 21:57:15,012 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 130 flow. Second operand 4 states and 97 transitions. [2024-10-31 21:57:15,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 60 transitions, 266 flow [2024-10-31 21:57:15,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 60 transitions, 262 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:57:15,016 INFO L231 Difference]: Finished difference. Result has 48 places, 36 transitions, 109 flow [2024-10-31 21:57:15,017 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=109, PETRI_PLACES=48, PETRI_TRANSITIONS=36} [2024-10-31 21:57:15,019 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 8 predicate places. [2024-10-31 21:57:15,019 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 36 transitions, 109 flow [2024-10-31 21:57:15,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-10-31 21:57:15,020 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:15,020 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:15,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:57:15,020 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-10-31 21:57:15,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:15,021 INFO L85 PathProgramCache]: Analyzing trace with hash -479520100, now seen corresponding path program 1 times [2024-10-31 21:57:15,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:15,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021405680] [2024-10-31 21:57:15,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:15,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:15,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:15,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021405680] [2024-10-31 21:57:15,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021405680] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:15,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:15,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:57:15,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198493206] [2024-10-31 21:57:15,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:15,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:57:15,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:15,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:57:15,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:57:15,129 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 41 [2024-10-31 21:57:15,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-10-31 21:57:15,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:15,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 41 [2024-10-31 21:57:15,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:15,222 INFO L124 PetriNetUnfolderBase]: 51/177 cut-off events. [2024-10-31 21:57:15,223 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-10-31 21:57:15,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 177 events. 51/177 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 740 event pairs, 12 based on Foata normal form. 12/179 useless extension candidates. Maximal degree in co-relation 357. Up to 72 conditions per place. [2024-10-31 21:57:15,225 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 26 selfloop transitions, 8 changer transitions 0/48 dead transitions. [2024-10-31 21:57:15,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 48 transitions, 208 flow [2024-10-31 21:57:15,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:57:15,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:57:15,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2024-10-31 21:57:15,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7073170731707317 [2024-10-31 21:57:15,227 INFO L175 Difference]: Start difference. First operand has 48 places, 36 transitions, 109 flow. Second operand 3 states and 87 transitions. [2024-10-31 21:57:15,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 48 transitions, 208 flow [2024-10-31 21:57:15,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 48 transitions, 191 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-10-31 21:57:15,232 INFO L231 Difference]: Finished difference. Result has 45 places, 39 transitions, 132 flow [2024-10-31 21:57:15,232 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=45, PETRI_TRANSITIONS=39} [2024-10-31 21:57:15,233 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 5 predicate places. [2024-10-31 21:57:15,233 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 39 transitions, 132 flow [2024-10-31 21:57:15,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-10-31 21:57:15,235 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:15,235 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:15,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:57:15,236 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-10-31 21:57:15,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:15,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1788517510, now seen corresponding path program 1 times [2024-10-31 21:57:15,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:15,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354904524] [2024-10-31 21:57:15,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:15,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:15,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:15,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354904524] [2024-10-31 21:57:15,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354904524] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:15,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:15,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:57:15,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227576280] [2024-10-31 21:57:15,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:15,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:57:15,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:15,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:57:15,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:57:15,376 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-10-31 21:57:15,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 39 transitions, 132 flow. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-10-31 21:57:15,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:15,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-10-31 21:57:15,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:15,520 INFO L124 PetriNetUnfolderBase]: 56/187 cut-off events. [2024-10-31 21:57:15,520 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2024-10-31 21:57:15,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 187 events. 56/187 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 751 event pairs, 30 based on Foata normal form. 3/180 useless extension candidates. Maximal degree in co-relation 434. Up to 76 conditions per place. [2024-10-31 21:57:15,523 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 33 selfloop transitions, 4 changer transitions 0/47 dead transitions. [2024-10-31 21:57:15,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 47 transitions, 235 flow [2024-10-31 21:57:15,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:57:15,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:57:15,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 100 transitions. [2024-10-31 21:57:15,526 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4878048780487805 [2024-10-31 21:57:15,526 INFO L175 Difference]: Start difference. First operand has 45 places, 39 transitions, 132 flow. Second operand 5 states and 100 transitions. [2024-10-31 21:57:15,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 47 transitions, 235 flow [2024-10-31 21:57:15,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 47 transitions, 222 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 21:57:15,531 INFO L231 Difference]: Finished difference. Result has 47 places, 38 transitions, 128 flow [2024-10-31 21:57:15,532 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=128, PETRI_PLACES=47, PETRI_TRANSITIONS=38} [2024-10-31 21:57:15,532 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 7 predicate places. [2024-10-31 21:57:15,533 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 128 flow [2024-10-31 21:57:15,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-10-31 21:57:15,533 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:15,533 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:15,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 21:57:15,534 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-10-31 21:57:15,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:15,535 INFO L85 PathProgramCache]: Analyzing trace with hash -390531795, now seen corresponding path program 1 times [2024-10-31 21:57:15,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:15,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492095056] [2024-10-31 21:57:15,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:15,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:15,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:15,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492095056] [2024-10-31 21:57:15,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492095056] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:15,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:15,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:57:15,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173561180] [2024-10-31 21:57:15,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:15,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:57:15,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:15,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:57:15,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:57:15,653 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-10-31 21:57:15,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 128 flow. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-10-31 21:57:15,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:15,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-10-31 21:57:15,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:15,809 INFO L124 PetriNetUnfolderBase]: 59/185 cut-off events. [2024-10-31 21:57:15,809 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-10-31 21:57:15,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 185 events. 59/185 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 704 event pairs, 22 based on Foata normal form. 3/179 useless extension candidates. Maximal degree in co-relation 419. Up to 79 conditions per place. [2024-10-31 21:57:15,811 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 32 selfloop transitions, 4 changer transitions 9/53 dead transitions. [2024-10-31 21:57:15,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 53 transitions, 256 flow [2024-10-31 21:57:15,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:57:15,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:57:15,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 105 transitions. [2024-10-31 21:57:15,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5121951219512195 [2024-10-31 21:57:15,815 INFO L175 Difference]: Start difference. First operand has 47 places, 38 transitions, 128 flow. Second operand 5 states and 105 transitions. [2024-10-31 21:57:15,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 53 transitions, 256 flow [2024-10-31 21:57:15,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 53 transitions, 244 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-31 21:57:15,820 INFO L231 Difference]: Finished difference. Result has 46 places, 30 transitions, 96 flow [2024-10-31 21:57:15,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=96, PETRI_PLACES=46, PETRI_TRANSITIONS=30} [2024-10-31 21:57:15,822 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2024-10-31 21:57:15,822 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 30 transitions, 96 flow [2024-10-31 21:57:15,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-10-31 21:57:15,823 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:15,823 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:15,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:57:15,823 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-10-31 21:57:15,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:15,824 INFO L85 PathProgramCache]: Analyzing trace with hash 401299573, now seen corresponding path program 1 times [2024-10-31 21:57:15,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:15,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904718370] [2024-10-31 21:57:15,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:15,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:15,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:15,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904718370] [2024-10-31 21:57:15,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904718370] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:15,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:15,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:57:15,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113856455] [2024-10-31 21:57:15,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:15,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:57:15,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:15,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:57:15,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:57:15,953 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-10-31 21:57:15,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 30 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2024-10-31 21:57:15,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:15,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-10-31 21:57:15,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:16,102 INFO L124 PetriNetUnfolderBase]: 51/159 cut-off events. [2024-10-31 21:57:16,102 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-10-31 21:57:16,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 159 events. 51/159 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 550 event pairs, 20 based on Foata normal form. 5/154 useless extension candidates. Maximal degree in co-relation 351. Up to 67 conditions per place. [2024-10-31 21:57:16,103 INFO L140 encePairwiseOnDemand]: 37/41 looper letters, 32 selfloop transitions, 3 changer transitions 0/43 dead transitions. [2024-10-31 21:57:16,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 202 flow [2024-10-31 21:57:16,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:57:16,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:57:16,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2024-10-31 21:57:16,105 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48292682926829267 [2024-10-31 21:57:16,106 INFO L175 Difference]: Start difference. First operand has 46 places, 30 transitions, 96 flow. Second operand 5 states and 99 transitions. [2024-10-31 21:57:16,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 202 flow [2024-10-31 21:57:16,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 43 transitions, 190 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-31 21:57:16,107 INFO L231 Difference]: Finished difference. Result has 36 places, 29 transitions, 86 flow [2024-10-31 21:57:16,108 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=86, PETRI_PLACES=36, PETRI_TRANSITIONS=29} [2024-10-31 21:57:16,110 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2024-10-31 21:57:16,110 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 29 transitions, 86 flow [2024-10-31 21:57:16,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2024-10-31 21:57:16,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:16,111 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:16,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 21:57:16,112 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-10-31 21:57:16,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:16,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1719073897, now seen corresponding path program 1 times [2024-10-31 21:57:16,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:16,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191636170] [2024-10-31 21:57:16,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:16,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:16,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:16,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191636170] [2024-10-31 21:57:16,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191636170] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:16,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:16,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:57:16,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282698289] [2024-10-31 21:57:16,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:16,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:57:16,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:16,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:57:16,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:57:16,241 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-10-31 21:57:16,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 29 transitions, 86 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2024-10-31 21:57:16,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:16,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-10-31 21:57:16,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:16,341 INFO L124 PetriNetUnfolderBase]: 48/151 cut-off events. [2024-10-31 21:57:16,342 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-10-31 21:57:16,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 151 events. 48/151 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 502 event pairs, 17 based on Foata normal form. 5/146 useless extension candidates. Maximal degree in co-relation 328. Up to 59 conditions per place. [2024-10-31 21:57:16,344 INFO L140 encePairwiseOnDemand]: 37/41 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2024-10-31 21:57:16,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 42 transitions, 190 flow [2024-10-31 21:57:16,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:57:16,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:57:16,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 98 transitions. [2024-10-31 21:57:16,354 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47804878048780486 [2024-10-31 21:57:16,354 INFO L175 Difference]: Start difference. First operand has 36 places, 29 transitions, 86 flow. Second operand 5 states and 98 transitions. [2024-10-31 21:57:16,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 42 transitions, 190 flow [2024-10-31 21:57:16,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 42 transitions, 183 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 21:57:16,355 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2024-10-31 21:57:16,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2024-10-31 21:57:16,356 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -5 predicate places. [2024-10-31 21:57:16,356 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2024-10-31 21:57:16,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2024-10-31 21:57:16,360 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 11 remaining) [2024-10-31 21:57:16,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2024-10-31 21:57:16,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2024-10-31 21:57:16,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2024-10-31 21:57:16,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2024-10-31 21:57:16,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2024-10-31 21:57:16,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining) [2024-10-31 21:57:16,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2024-10-31 21:57:16,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2024-10-31 21:57:16,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2024-10-31 21:57:16,363 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2024-10-31 21:57:16,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 21:57:16,363 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:16,372 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 21:57:16,372 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 21:57:16,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 09:57:16 BasicIcfg [2024-10-31 21:57:16,381 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 21:57:16,382 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 21:57:16,382 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 21:57:16,382 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 21:57:16,387 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:57:13" (3/4) ... [2024-10-31 21:57:16,389 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 21:57:16,393 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-31 21:57:16,398 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2024-10-31 21:57:16,398 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-31 21:57:16,399 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-31 21:57:16,495 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfc222d-9863-44bd-92ca-28f531e97d97/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 21:57:16,496 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfc222d-9863-44bd-92ca-28f531e97d97/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 21:57:16,496 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 21:57:16,497 INFO L158 Benchmark]: Toolchain (without parser) took 4965.28ms. Allocated memory was 157.3MB in the beginning and 213.9MB in the end (delta: 56.6MB). Free memory was 111.6MB in the beginning and 175.5MB in the end (delta: -63.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:57:16,497 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 157.3MB. Free memory is still 125.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:57:16,498 INFO L158 Benchmark]: CACSL2BoogieTranslator took 913.07ms. Allocated memory is still 157.3MB. Free memory was 111.6MB in the beginning and 89.7MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-31 21:57:16,498 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.25ms. Allocated memory is still 157.3MB. Free memory was 89.7MB in the beginning and 87.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:57:16,499 INFO L158 Benchmark]: Boogie Preprocessor took 79.79ms. Allocated memory is still 157.3MB. Free memory was 87.6MB in the beginning and 85.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:57:16,499 INFO L158 Benchmark]: RCFGBuilder took 663.34ms. Allocated memory is still 157.3MB. Free memory was 85.5MB in the beginning and 61.9MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-31 21:57:16,500 INFO L158 Benchmark]: TraceAbstraction took 3109.63ms. Allocated memory was 157.3MB in the beginning and 213.9MB in the end (delta: 56.6MB). Free memory was 61.3MB in the beginning and 179.7MB in the end (delta: -118.4MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2024-10-31 21:57:16,500 INFO L158 Benchmark]: Witness Printer took 114.14ms. Allocated memory is still 213.9MB. Free memory was 179.7MB in the beginning and 175.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 21:57:16,503 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 157.3MB. Free memory is still 125.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 913.07ms. Allocated memory is still 157.3MB. Free memory was 111.6MB in the beginning and 89.7MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.25ms. Allocated memory is still 157.3MB. Free memory was 89.7MB in the beginning and 87.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.79ms. Allocated memory is still 157.3MB. Free memory was 87.6MB in the beginning and 85.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 663.34ms. Allocated memory is still 157.3MB. Free memory was 85.5MB in the beginning and 61.9MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3109.63ms. Allocated memory was 157.3MB in the beginning and 213.9MB in the end (delta: 56.6MB). Free memory was 61.3MB in the beginning and 179.7MB in the end (delta: -118.4MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. * Witness Printer took 114.14ms. Allocated memory is still 213.9MB. Free memory was 179.7MB in the beginning and 175.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 684]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 684]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 687]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 687]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 59 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 238 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 197 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 582 IncrementalHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 19 mSDtfsCounter, 582 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=4, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 285 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-31 21:57:16,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfc222d-9863-44bd-92ca-28f531e97d97/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE