./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread/lazy01.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_80c99222-18d6-41ba-a21e-b4de3b05d815/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c99222-18d6-41ba-a21e-b4de3b05d815/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c99222-18d6-41ba-a21e-b4de3b05d815/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c99222-18d6-41ba-a21e-b4de3b05d815/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/lazy01.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c99222-18d6-41ba-a21e-b4de3b05d815/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c99222-18d6-41ba-a21e-b4de3b05d815/bin/uautomizer-verify-BQ2R08f2Ya --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 b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:06:14,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:06:14,297 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c99222-18d6-41ba-a21e-b4de3b05d815/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 05:06:14,301 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:06:14,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:06:14,324 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:06:14,325 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:06:14,325 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:06:14,326 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:06:14,326 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:06:14,327 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:06:14,327 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:06:14,328 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:06:14,329 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:06:14,329 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:06:14,330 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:06:14,330 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:06:14,331 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:06:14,331 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:06:14,332 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:06:14,332 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:06:14,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:06:14,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:06:14,333 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:06:14,334 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:06:14,334 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:06:14,335 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:06:14,335 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:06:14,336 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:06:14,336 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:06:14,337 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:06:14,337 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:06:14,337 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:06:14,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:06:14,338 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:06:14,339 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:06:14,339 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:06:14,339 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:06:14,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:06:14,340 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:06:14,340 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:06:14,341 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:06:14,341 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:06:14,341 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:06:14,341 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_80c99222-18d6-41ba-a21e-b4de3b05d815/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c99222-18d6-41ba-a21e-b4de3b05d815/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 [2023-11-29 05:06:14,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:06:14,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:06:14,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:06:14,559 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:06:14,559 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:06:14,560 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c99222-18d6-41ba-a21e-b4de3b05d815/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread/lazy01.i [2023-11-29 05:06:17,295 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:06:17,530 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:06:17,530 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c99222-18d6-41ba-a21e-b4de3b05d815/sv-benchmarks/c/pthread/lazy01.i [2023-11-29 05:06:17,547 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c99222-18d6-41ba-a21e-b4de3b05d815/bin/uautomizer-verify-BQ2R08f2Ya/data/faf8d2996/47c29d71fbca4881805af171587984b2/FLAG2f9a3f266 [2023-11-29 05:06:17,559 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c99222-18d6-41ba-a21e-b4de3b05d815/bin/uautomizer-verify-BQ2R08f2Ya/data/faf8d2996/47c29d71fbca4881805af171587984b2 [2023-11-29 05:06:17,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:06:17,562 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:06:17,563 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:06:17,563 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:06:17,567 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:06:17,568 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:06:17" (1/1) ... [2023-11-29 05:06:17,569 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16a3870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:06:17, skipping insertion in model container [2023-11-29 05:06:17,569 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:06:17" (1/1) ... [2023-11-29 05:06:17,608 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:06:17,885 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:06:17,897 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:06:17,934 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:06:17,975 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:06:17,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:06:17 WrapperNode [2023-11-29 05:06:17,975 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:06:17,977 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:06:17,977 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:06:17,977 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:06:17,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:06:17" (1/1) ... [2023-11-29 05:06:17,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:06:17" (1/1) ... [2023-11-29 05:06:18,021 INFO L138 Inliner]: procedures = 170, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2023-11-29 05:06:18,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:06:18,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:06:18,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:06:18,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:06:18,034 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:06:17" (1/1) ... [2023-11-29 05:06:18,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:06:17" (1/1) ... [2023-11-29 05:06:18,037 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:06:17" (1/1) ... [2023-11-29 05:06:18,053 INFO L175 MemorySlicer]: Split 13 memory accesses to 5 slices as follows [2, 5, 2, 2, 2]. 38 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0, 0, 0]. The 3 writes are split as follows [0, 0, 1, 1, 1]. [2023-11-29 05:06:18,053 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:06:17" (1/1) ... [2023-11-29 05:06:18,053 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:06:17" (1/1) ... [2023-11-29 05:06:18,059 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:06:17" (1/1) ... [2023-11-29 05:06:18,061 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:06:17" (1/1) ... [2023-11-29 05:06:18,063 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:06:17" (1/1) ... [2023-11-29 05:06:18,065 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:06:17" (1/1) ... [2023-11-29 05:06:18,068 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:06:18,069 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:06:18,069 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:06:18,070 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:06:18,070 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:06:17" (1/1) ... [2023-11-29 05:06:18,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:06:18,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c99222-18d6-41ba-a21e-b4de3b05d815/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:06:18,099 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c99222-18d6-41ba-a21e-b4de3b05d815/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:06:18,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c99222-18d6-41ba-a21e-b4de3b05d815/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:06:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 05:06:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 05:06:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 05:06:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 05:06:18,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 05:06:18,130 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 05:06:18,130 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 05:06:18,130 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 05:06:18,130 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 05:06:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-29 05:06:18,131 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-29 05:06:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 05:06:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 05:06:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 05:06:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 05:06:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 05:06:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 05:06:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:06:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:06:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:06:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:06:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 05:06:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 05:06:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 05:06:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 05:06:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 05:06:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:06:18,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:06:18,136 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 05:06:18,272 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:06:18,275 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:06:18,450 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:06:18,594 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:06:18,602 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 05:06:18,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:06:18 BoogieIcfgContainer [2023-11-29 05:06:18,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:06:18,607 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:06:18,607 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:06:18,610 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:06:18,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:06:17" (1/3) ... [2023-11-29 05:06:18,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c7a980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:06:18, skipping insertion in model container [2023-11-29 05:06:18,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:06:17" (2/3) ... [2023-11-29 05:06:18,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c7a980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:06:18, skipping insertion in model container [2023-11-29 05:06:18,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:06:18" (3/3) ... [2023-11-29 05:06:18,624 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01.i [2023-11-29 05:06:18,632 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 05:06:18,643 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:06:18,643 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-29 05:06:18,643 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 05:06:18,689 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-29 05:06:18,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 39 transitions, 99 flow [2023-11-29 05:06:18,751 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2023-11-29 05:06:18,751 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-29 05:06:18,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 36 events. 0/36 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-29 05:06:18,753 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 39 transitions, 99 flow [2023-11-29 05:06:18,756 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 32 transitions, 76 flow [2023-11-29 05:06:18,765 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:06:18,771 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;@3571645c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:06:18,771 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-29 05:06:18,777 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 05:06:18,777 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-11-29 05:06:18,777 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 05:06:18,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:06:18,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 05:06:18,779 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-11-29 05:06:18,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:18,784 INFO L85 PathProgramCache]: Analyzing trace with hash -957247997, now seen corresponding path program 1 times [2023-11-29 05:06:18,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:06:18,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437403274] [2023-11-29 05:06:18,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:18,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:06:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:19,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:06:19,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:06:19,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437403274] [2023-11-29 05:06:19,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437403274] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:19,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:19,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:06:19,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463333922] [2023-11-29 05:06:19,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:19,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:06:19,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:06:19,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:06:19,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:06:19,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 39 [2023-11-29 05:06:19,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2023-11-29 05:06:19,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:06:19,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 39 [2023-11-29 05:06:19,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:06:19,592 INFO L124 PetriNetUnfolderBase]: 1150/1846 cut-off events. [2023-11-29 05:06:19,592 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-11-29 05:06:19,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3763 conditions, 1846 events. 1150/1846 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 9672 event pairs, 305 based on Foata normal form. 96/1851 useless extension candidates. Maximal degree in co-relation 3345. Up to 1507 conditions per place. [2023-11-29 05:06:19,612 INFO L140 encePairwiseOnDemand]: 31/39 looper letters, 44 selfloop transitions, 4 changer transitions 13/67 dead transitions. [2023-11-29 05:06:19,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 67 transitions, 283 flow [2023-11-29 05:06:19,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:06:19,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 05:06:19,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 114 transitions. [2023-11-29 05:06:19,625 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5846153846153846 [2023-11-29 05:06:19,626 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 114 transitions. [2023-11-29 05:06:19,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 114 transitions. [2023-11-29 05:06:19,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:06:19,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 114 transitions. [2023-11-29 05:06:19,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2023-11-29 05:06:19,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 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) [2023-11-29 05:06:19,636 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 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) [2023-11-29 05:06:19,638 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 76 flow. Second operand 5 states and 114 transitions. [2023-11-29 05:06:19,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 67 transitions, 283 flow [2023-11-29 05:06:19,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 67 transitions, 272 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 05:06:19,646 INFO L231 Difference]: Finished difference. Result has 45 places, 33 transitions, 103 flow [2023-11-29 05:06:19,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=103, PETRI_PLACES=45, PETRI_TRANSITIONS=33} [2023-11-29 05:06:19,651 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 3 predicate places. [2023-11-29 05:06:19,652 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 33 transitions, 103 flow [2023-11-29 05:06:19,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2023-11-29 05:06:19,652 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:06:19,652 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:19,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:06:19,653 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-11-29 05:06:19,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:19,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1906575285, now seen corresponding path program 1 times [2023-11-29 05:06:19,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:06:19,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736792468] [2023-11-29 05:06:19,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:19,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:06:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:19,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:06:19,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:06:19,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736792468] [2023-11-29 05:06:19,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736792468] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:19,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:19,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:06:19,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365170238] [2023-11-29 05:06:19,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:19,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:06:19,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:06:19,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:06:19,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:06:19,787 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 39 [2023-11-29 05:06:19,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 33 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2023-11-29 05:06:19,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:06:19,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 39 [2023-11-29 05:06:19,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:06:19,915 INFO L124 PetriNetUnfolderBase]: 183/528 cut-off events. [2023-11-29 05:06:19,915 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2023-11-29 05:06:19,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1164 conditions, 528 events. 183/528 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2945 event pairs, 46 based on Foata normal form. 92/617 useless extension candidates. Maximal degree in co-relation 1062. Up to 261 conditions per place. [2023-11-29 05:06:19,920 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 27 selfloop transitions, 6 changer transitions 0/43 dead transitions. [2023-11-29 05:06:19,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 43 transitions, 194 flow [2023-11-29 05:06:19,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:06:19,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 05:06:19,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2023-11-29 05:06:19,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6324786324786325 [2023-11-29 05:06:19,923 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 74 transitions. [2023-11-29 05:06:19,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 74 transitions. [2023-11-29 05:06:19,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:06:19,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 74 transitions. [2023-11-29 05:06:19,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2023-11-29 05:06:19,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:19,925 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:19,925 INFO L175 Difference]: Start difference. First operand has 45 places, 33 transitions, 103 flow. Second operand 3 states and 74 transitions. [2023-11-29 05:06:19,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 43 transitions, 194 flow [2023-11-29 05:06:19,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 43 transitions, 183 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-29 05:06:19,933 INFO L231 Difference]: Finished difference. Result has 44 places, 33 transitions, 104 flow [2023-11-29 05:06:19,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=44, PETRI_TRANSITIONS=33} [2023-11-29 05:06:19,935 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 2 predicate places. [2023-11-29 05:06:19,935 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 33 transitions, 104 flow [2023-11-29 05:06:19,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2023-11-29 05:06:19,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:06:19,935 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:19,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:06:19,936 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-11-29 05:06:19,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:19,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1884255555, now seen corresponding path program 1 times [2023-11-29 05:06:19,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:06:19,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537519045] [2023-11-29 05:06:19,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:19,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:06:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:20,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:06:20,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:06:20,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537519045] [2023-11-29 05:06:20,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537519045] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:20,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:20,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:06:20,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629240598] [2023-11-29 05:06:20,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:20,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:06:20,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:06:20,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:06:20,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:06:20,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 39 [2023-11-29 05:06:20,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 33 transitions, 104 flow. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2023-11-29 05:06:20,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:06:20,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 39 [2023-11-29 05:06:20,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:06:20,198 INFO L124 PetriNetUnfolderBase]: 257/558 cut-off events. [2023-11-29 05:06:20,198 INFO L125 PetriNetUnfolderBase]: For 155/155 co-relation queries the response was YES. [2023-11-29 05:06:20,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1315 conditions, 558 events. 257/558 cut-off events. For 155/155 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2659 event pairs, 92 based on Foata normal form. 22/572 useless extension candidates. Maximal degree in co-relation 934. Up to 416 conditions per place. [2023-11-29 05:06:20,202 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 39 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2023-11-29 05:06:20,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 49 transitions, 236 flow [2023-11-29 05:06:20,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:06:20,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 05:06:20,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2023-11-29 05:06:20,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4564102564102564 [2023-11-29 05:06:20,204 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 89 transitions. [2023-11-29 05:06:20,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 89 transitions. [2023-11-29 05:06:20,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:06:20,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 89 transitions. [2023-11-29 05:06:20,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2023-11-29 05:06:20,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 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) [2023-11-29 05:06:20,207 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 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) [2023-11-29 05:06:20,207 INFO L175 Difference]: Start difference. First operand has 44 places, 33 transitions, 104 flow. Second operand 5 states and 89 transitions. [2023-11-29 05:06:20,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 49 transitions, 236 flow [2023-11-29 05:06:20,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 49 transitions, 226 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 05:06:20,211 INFO L231 Difference]: Finished difference. Result has 46 places, 32 transitions, 102 flow [2023-11-29 05:06:20,211 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=46, PETRI_TRANSITIONS=32} [2023-11-29 05:06:20,211 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 4 predicate places. [2023-11-29 05:06:20,212 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 32 transitions, 102 flow [2023-11-29 05:06:20,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2023-11-29 05:06:20,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:06:20,212 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:20,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:06:20,212 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-11-29 05:06:20,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:20,213 INFO L85 PathProgramCache]: Analyzing trace with hash 762702941, now seen corresponding path program 1 times [2023-11-29 05:06:20,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:06:20,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126033882] [2023-11-29 05:06:20,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:20,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:06:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:20,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:06:20,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:06:20,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126033882] [2023-11-29 05:06:20,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126033882] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:20,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:20,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:06:20,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454436483] [2023-11-29 05:06:20,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:20,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:06:20,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:06:20,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:06:20,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:06:20,312 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 39 [2023-11-29 05:06:20,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 32 transitions, 102 flow. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2023-11-29 05:06:20,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:06:20,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 39 [2023-11-29 05:06:20,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:06:20,472 INFO L124 PetriNetUnfolderBase]: 235/516 cut-off events. [2023-11-29 05:06:20,472 INFO L125 PetriNetUnfolderBase]: For 195/195 co-relation queries the response was YES. [2023-11-29 05:06:20,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1177 conditions, 516 events. 235/516 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2410 event pairs, 63 based on Foata normal form. 16/523 useless extension candidates. Maximal degree in co-relation 802. Up to 155 conditions per place. [2023-11-29 05:06:20,475 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 46 selfloop transitions, 5 changer transitions 0/57 dead transitions. [2023-11-29 05:06:20,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 57 transitions, 267 flow [2023-11-29 05:06:20,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:06:20,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 05:06:20,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions. [2023-11-29 05:06:20,477 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49743589743589745 [2023-11-29 05:06:20,477 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 97 transitions. [2023-11-29 05:06:20,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 97 transitions. [2023-11-29 05:06:20,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:06:20,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 97 transitions. [2023-11-29 05:06:20,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 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) [2023-11-29 05:06:20,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 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) [2023-11-29 05:06:20,479 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 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) [2023-11-29 05:06:20,479 INFO L175 Difference]: Start difference. First operand has 46 places, 32 transitions, 102 flow. Second operand 5 states and 97 transitions. [2023-11-29 05:06:20,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 57 transitions, 267 flow [2023-11-29 05:06:20,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 57 transitions, 261 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 05:06:20,482 INFO L231 Difference]: Finished difference. Result has 46 places, 31 transitions, 102 flow [2023-11-29 05:06:20,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=46, PETRI_TRANSITIONS=31} [2023-11-29 05:06:20,484 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 4 predicate places. [2023-11-29 05:06:20,484 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 31 transitions, 102 flow [2023-11-29 05:06:20,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2023-11-29 05:06:20,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:06:20,484 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:20,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 05:06:20,485 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-11-29 05:06:20,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:20,485 INFO L85 PathProgramCache]: Analyzing trace with hash -193184711, now seen corresponding path program 1 times [2023-11-29 05:06:20,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:06:20,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523612533] [2023-11-29 05:06:20,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:20,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:06:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:20,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:06:20,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:06:20,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523612533] [2023-11-29 05:06:20,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523612533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:20,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:20,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:06:20,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488663564] [2023-11-29 05:06:20,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:20,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:06:20,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:06:20,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:06:20,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:06:20,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 39 [2023-11-29 05:06:20,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 31 transitions, 102 flow. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2023-11-29 05:06:20,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:06:20,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 39 [2023-11-29 05:06:20,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:06:20,714 INFO L124 PetriNetUnfolderBase]: 205/468 cut-off events. [2023-11-29 05:06:20,714 INFO L125 PetriNetUnfolderBase]: For 225/225 co-relation queries the response was YES. [2023-11-29 05:06:20,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1075 conditions, 468 events. 205/468 cut-off events. For 225/225 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2204 event pairs, 70 based on Foata normal form. 19/482 useless extension candidates. Maximal degree in co-relation 756. Up to 180 conditions per place. [2023-11-29 05:06:20,717 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 23 selfloop transitions, 2 changer transitions 23/54 dead transitions. [2023-11-29 05:06:20,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 54 transitions, 256 flow [2023-11-29 05:06:20,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:06:20,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 05:06:20,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 94 transitions. [2023-11-29 05:06:20,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48205128205128206 [2023-11-29 05:06:20,718 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 94 transitions. [2023-11-29 05:06:20,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 94 transitions. [2023-11-29 05:06:20,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:06:20,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 94 transitions. [2023-11-29 05:06:20,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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) [2023-11-29 05:06:20,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 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) [2023-11-29 05:06:20,721 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 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) [2023-11-29 05:06:20,721 INFO L175 Difference]: Start difference. First operand has 46 places, 31 transitions, 102 flow. Second operand 5 states and 94 transitions. [2023-11-29 05:06:20,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 54 transitions, 256 flow [2023-11-29 05:06:20,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 54 transitions, 246 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-11-29 05:06:20,724 INFO L231 Difference]: Finished difference. Result has 46 places, 24 transitions, 70 flow [2023-11-29 05:06:20,724 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=70, PETRI_PLACES=46, PETRI_TRANSITIONS=24} [2023-11-29 05:06:20,725 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 4 predicate places. [2023-11-29 05:06:20,725 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 24 transitions, 70 flow [2023-11-29 05:06:20,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2023-11-29 05:06:20,725 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:06:20,725 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:20,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 05:06:20,726 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-11-29 05:06:20,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:20,726 INFO L85 PathProgramCache]: Analyzing trace with hash -2126012336, now seen corresponding path program 1 times [2023-11-29 05:06:20,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:06:20,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563562203] [2023-11-29 05:06:20,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:20,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:06:20,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:20,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:06:20,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:06:20,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563562203] [2023-11-29 05:06:20,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563562203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:20,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:20,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:06:20,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376155324] [2023-11-29 05:06:20,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:20,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:06:20,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:06:20,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:06:20,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:06:20,808 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 39 [2023-11-29 05:06:20,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 24 transitions, 70 flow. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2023-11-29 05:06:20,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:06:20,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 39 [2023-11-29 05:06:20,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:06:20,888 INFO L124 PetriNetUnfolderBase]: 97/222 cut-off events. [2023-11-29 05:06:20,888 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2023-11-29 05:06:20,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 222 events. 97/222 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 763 event pairs, 32 based on Foata normal form. 16/233 useless extension candidates. Maximal degree in co-relation 497. Up to 103 conditions per place. [2023-11-29 05:06:20,889 INFO L140 encePairwiseOnDemand]: 35/39 looper letters, 0 selfloop transitions, 0 changer transitions 36/36 dead transitions. [2023-11-29 05:06:20,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 36 transitions, 159 flow [2023-11-29 05:06:20,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:06:20,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 05:06:20,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions. [2023-11-29 05:06:20,891 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38974358974358975 [2023-11-29 05:06:20,891 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 76 transitions. [2023-11-29 05:06:20,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 76 transitions. [2023-11-29 05:06:20,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:06:20,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 76 transitions. [2023-11-29 05:06:20,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 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) [2023-11-29 05:06:20,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 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) [2023-11-29 05:06:20,893 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 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) [2023-11-29 05:06:20,893 INFO L175 Difference]: Start difference. First operand has 46 places, 24 transitions, 70 flow. Second operand 5 states and 76 transitions. [2023-11-29 05:06:20,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 36 transitions, 159 flow [2023-11-29 05:06:20,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 36 transitions, 153 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 05:06:20,894 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2023-11-29 05:06:20,894 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2023-11-29 05:06:20,895 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -4 predicate places. [2023-11-29 05:06:20,895 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 0 transitions, 0 flow [2023-11-29 05:06:20,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2023-11-29 05:06:20,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 11 remaining) [2023-11-29 05:06:20,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2023-11-29 05:06:20,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2023-11-29 05:06:20,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2023-11-29 05:06:20,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2023-11-29 05:06:20,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 11 remaining) [2023-11-29 05:06:20,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2023-11-29 05:06:20,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2023-11-29 05:06:20,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2023-11-29 05:06:20,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2023-11-29 05:06:20,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2023-11-29 05:06:20,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 05:06:20,901 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-29 05:06:20,906 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 05:06:20,906 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:06:20,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:06:20 BasicIcfg [2023-11-29 05:06:20,912 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:06:20,912 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:06:20,912 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:06:20,912 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:06:20,913 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:06:18" (3/4) ... [2023-11-29 05:06:20,914 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 05:06:20,917 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-29 05:06:20,917 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-29 05:06:20,917 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-29 05:06:20,922 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2023-11-29 05:06:20,922 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-29 05:06:20,922 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 05:06:20,923 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-29 05:06:21,001 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c99222-18d6-41ba-a21e-b4de3b05d815/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 05:06:21,002 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c99222-18d6-41ba-a21e-b4de3b05d815/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 05:06:21,002 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:06:21,003 INFO L158 Benchmark]: Toolchain (without parser) took 3441.00ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 118.6MB in the beginning and 81.8MB in the end (delta: 36.7MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. [2023-11-29 05:06:21,003 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 117.4MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:06:21,004 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.73ms. Allocated memory is still 148.9MB. Free memory was 118.0MB in the beginning and 98.4MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 05:06:21,004 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.14ms. Allocated memory is still 148.9MB. Free memory was 98.4MB in the beginning and 96.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:06:21,004 INFO L158 Benchmark]: Boogie Preprocessor took 46.31ms. Allocated memory is still 148.9MB. Free memory was 96.6MB in the beginning and 94.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:06:21,005 INFO L158 Benchmark]: RCFGBuilder took 533.81ms. Allocated memory is still 148.9MB. Free memory was 94.2MB in the beginning and 117.9MB in the end (delta: -23.7MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2023-11-29 05:06:21,005 INFO L158 Benchmark]: TraceAbstraction took 2305.00ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 116.7MB in the beginning and 87.1MB in the end (delta: 29.6MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. [2023-11-29 05:06:21,006 INFO L158 Benchmark]: Witness Printer took 90.33ms. Allocated memory is still 180.4MB. Free memory was 87.1MB in the beginning and 81.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:06:21,008 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 117.4MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.73ms. Allocated memory is still 148.9MB. Free memory was 118.0MB in the beginning and 98.4MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.14ms. Allocated memory is still 148.9MB. Free memory was 98.4MB in the beginning and 96.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.31ms. Allocated memory is still 148.9MB. Free memory was 96.6MB in the beginning and 94.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 533.81ms. Allocated memory is still 148.9MB. Free memory was 94.2MB in the beginning and 117.9MB in the end (delta: -23.7MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2305.00ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 116.7MB in the beginning and 87.1MB in the end (delta: 29.6MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. * Witness Printer took 90.33ms. Allocated memory is still 180.4MB. Free memory was 87.1MB in the beginning and 81.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 707]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 707]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 714]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 714]: 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 7 procedures, 69 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: 2.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 250 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 208 mSDsluCounter, 69 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 587 IncrementalHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 39 mSDtfsCounter, 587 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=2, InterpolantAutomatonStates: 28, 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, 0.5s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 213 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 05:06:21,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c99222-18d6-41ba-a21e-b4de3b05d815/bin/uautomizer-verify-BQ2R08f2Ya/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