./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe035_power.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_17d0beed-64aa-4945-b864-36ecf4bace58/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d0beed-64aa-4945-b864-36ecf4bace58/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_17d0beed-64aa-4945-b864-36ecf4bace58/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d0beed-64aa-4945-b864-36ecf4bace58/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe035_power.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d0beed-64aa-4945-b864-36ecf4bace58/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_17d0beed-64aa-4945-b864-36ecf4bace58/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 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:46,867 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:46,948 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d0beed-64aa-4945-b864-36ecf4bace58/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 21:59:46,953 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:46,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:46,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:46,990 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:46,991 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:46,991 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:59:46,992 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:59:46,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:59:46,993 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:59:46,994 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:46,997 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:46,998 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:46,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:46,999 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:59:46,999 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:59:46,999 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:46,999 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:59:47,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:47,004 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:59:47,005 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:59:47,005 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:59:47,005 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:47,006 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 21:59:47,006 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:59:47,006 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:59:47,007 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:47,007 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:47,007 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:47,008 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:47,008 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:59:47,008 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:59:47,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:47,009 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:47,010 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:59:47,010 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:59:47,010 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:47,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:59:47,011 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:59:47,011 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:59:47,011 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:59:47,012 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:59:47,012 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_17d0beed-64aa-4945-b864-36ecf4bace58/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d0beed-64aa-4945-b864-36ecf4bace58/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 [2024-10-31 21:59:47,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:47,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:47,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:47,357 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:47,358 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:47,359 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d0beed-64aa-4945-b864-36ecf4bace58/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/safe035_power.i Unable to find full path for "g++" [2024-10-31 21:59:49,732 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:50,030 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:50,030 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d0beed-64aa-4945-b864-36ecf4bace58/sv-benchmarks/c/pthread-wmm/safe035_power.i [2024-10-31 21:59:50,053 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d0beed-64aa-4945-b864-36ecf4bace58/bin/uautomizer-verify-4GaUIPS5ZU/data/0adb2978e/748e15fa82c742e88a6872690d07ade3/FLAG115f19710 [2024-10-31 21:59:50,069 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d0beed-64aa-4945-b864-36ecf4bace58/bin/uautomizer-verify-4GaUIPS5ZU/data/0adb2978e/748e15fa82c742e88a6872690d07ade3 [2024-10-31 21:59:50,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:50,074 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:50,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:50,075 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:50,085 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:50,086 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:50" (1/1) ... [2024-10-31 21:59:50,089 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a09f400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:50, skipping insertion in model container [2024-10-31 21:59:50,090 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:50" (1/1) ... [2024-10-31 21:59:50,161 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:50,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:50,815 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:59:50,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:50,984 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:59:50,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:50 WrapperNode [2024-10-31 21:59:50,985 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:50,986 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:50,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:59:50,987 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:59:50,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:50" (1/1) ... [2024-10-31 21:59:51,018 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:50" (1/1) ... [2024-10-31 21:59:51,075 INFO L138 Inliner]: procedures = 175, calls = 49, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 171 [2024-10-31 21:59:51,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:51,076 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:59:51,077 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:59:51,077 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:59:51,089 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:50" (1/1) ... [2024-10-31 21:59:51,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:50" (1/1) ... [2024-10-31 21:59:51,098 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:50" (1/1) ... [2024-10-31 21:59:51,133 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 21:59:51,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:50" (1/1) ... [2024-10-31 21:59:51,135 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:50" (1/1) ... [2024-10-31 21:59:51,152 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:50" (1/1) ... [2024-10-31 21:59:51,155 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:50" (1/1) ... [2024-10-31 21:59:51,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:50" (1/1) ... [2024-10-31 21:59:51,166 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:50" (1/1) ... [2024-10-31 21:59:51,174 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:59:51,175 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:59:51,176 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:59:51,176 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:59:51,177 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:50" (1/1) ... [2024-10-31 21:59:51,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:51,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d0beed-64aa-4945-b864-36ecf4bace58/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:51,212 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d0beed-64aa-4945-b864-36ecf4bace58/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:51,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d0beed-64aa-4945-b864-36ecf4bace58/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:59:51,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 21:59:51,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:59:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 21:59:51,251 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 21:59:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 21:59:51,251 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 21:59:51,252 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-31 21:59:51,252 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-31 21:59:51,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:59:51,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 21:59:51,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:59:51,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:59:51,256 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 21:59:51,452 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:59:51,455 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:59:52,232 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 21:59:52,233 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:59:52,615 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:59:52,616 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 21:59:52,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:52 BoogieIcfgContainer [2024-10-31 21:59:52,616 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:59:52,620 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:59:52,620 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:59:52,624 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:59:52,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:59:50" (1/3) ... [2024-10-31 21:59:52,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4686affc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:52, skipping insertion in model container [2024-10-31 21:59:52,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:50" (2/3) ... [2024-10-31 21:59:52,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4686affc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:52, skipping insertion in model container [2024-10-31 21:59:52,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:52" (3/3) ... [2024-10-31 21:59:52,630 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2024-10-31 21:59:52,691 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:59:52,691 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-31 21:59:52,691 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 21:59:52,775 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 21:59:52,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 42 transitions, 96 flow [2024-10-31 21:59:52,858 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2024-10-31 21:59:52,858 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:59:52,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 39 events. 0/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 90 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-10-31 21:59:52,860 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 42 transitions, 96 flow [2024-10-31 21:59:52,864 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 39 transitions, 87 flow [2024-10-31 21:59:52,873 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:59:52,880 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;@14fb69dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:59:52,880 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-10-31 21:59:52,893 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:59:52,893 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-10-31 21:59:52,894 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:59:52,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:52,894 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:52,895 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-31 21:59:52,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:52,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1059153671, now seen corresponding path program 1 times [2024-10-31 21:59:52,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:52,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686400619] [2024-10-31 21:59:52,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:52,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:53,454 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 21:59:53,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:53,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686400619] [2024-10-31 21:59:53,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686400619] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:53,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:53,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 21:59:53,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641899485] [2024-10-31 21:59:53,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:53,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:53,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:53,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:53,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:53,507 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-10-31 21:59:53,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 21:59:53,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:53,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-10-31 21:59:53,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:55,558 INFO L124 PetriNetUnfolderBase]: 4989/7129 cut-off events. [2024-10-31 21:59:55,558 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-31 21:59:55,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14334 conditions, 7129 events. 4989/7129 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 39002 event pairs, 4989 based on Foata normal form. 0/6199 useless extension candidates. Maximal degree in co-relation 14323. Up to 7102 conditions per place. [2024-10-31 21:59:55,622 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 28 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2024-10-31 21:59:55,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 139 flow [2024-10-31 21:59:55,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:55,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:55,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-10-31 21:59:55,635 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49206349206349204 [2024-10-31 21:59:55,637 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 87 flow. Second operand 3 states and 62 transitions. [2024-10-31 21:59:55,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 139 flow [2024-10-31 21:59:55,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 136 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 21:59:55,647 INFO L231 Difference]: Finished difference. Result has 45 places, 36 transitions, 80 flow [2024-10-31 21:59:55,650 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=45, PETRI_TRANSITIONS=36} [2024-10-31 21:59:55,656 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -4 predicate places. [2024-10-31 21:59:55,657 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 80 flow [2024-10-31 21:59:55,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 21:59:55,657 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:55,657 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:55,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:59:55,658 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-31 21:59:55,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:55,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1059153672, now seen corresponding path program 1 times [2024-10-31 21:59:55,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:55,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417050316] [2024-10-31 21:59:55,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:55,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:55,795 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 21:59:55,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:55,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417050316] [2024-10-31 21:59:55,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417050316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:55,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:55,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 21:59:55,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856927928] [2024-10-31 21:59:55,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:55,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:55,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:55,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:55,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:55,805 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-10-31 21:59:55,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 21:59:55,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:55,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-10-31 21:59:55,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:57,253 INFO L124 PetriNetUnfolderBase]: 3935/5697 cut-off events. [2024-10-31 21:59:57,253 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:59:57,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11451 conditions, 5697 events. 3935/5697 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 31603 event pairs, 1307 based on Foata normal form. 0/5242 useless extension candidates. Maximal degree in co-relation 11445. Up to 4503 conditions per place. [2024-10-31 21:59:57,290 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 46 selfloop transitions, 4 changer transitions 0/57 dead transitions. [2024-10-31 21:59:57,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 57 transitions, 226 flow [2024-10-31 21:59:57,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:57,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:57,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2024-10-31 21:59:57,293 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6587301587301587 [2024-10-31 21:59:57,293 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 80 flow. Second operand 3 states and 83 transitions. [2024-10-31 21:59:57,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 57 transitions, 226 flow [2024-10-31 21:59:57,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 57 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 21:59:57,295 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 109 flow [2024-10-31 21:59:57,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2024-10-31 21:59:57,296 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -2 predicate places. [2024-10-31 21:59:57,297 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 109 flow [2024-10-31 21:59:57,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 21:59:57,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:57,297 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:57,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:59:57,298 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-31 21:59:57,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:57,298 INFO L85 PathProgramCache]: Analyzing trace with hash 974045189, now seen corresponding path program 1 times [2024-10-31 21:59:57,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:57,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120893853] [2024-10-31 21:59:57,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:57,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:57,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:57,534 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 21:59:57,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:57,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120893853] [2024-10-31 21:59:57,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120893853] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:57,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:57,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:57,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857348484] [2024-10-31 21:59:57,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:57,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:57,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:57,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:57,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:57,542 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-10-31 21:59:57,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 109 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 21:59:57,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:57,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-10-31 21:59:57,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:58,923 INFO L124 PetriNetUnfolderBase]: 3167/4597 cut-off events. [2024-10-31 21:59:58,923 INFO L125 PetriNetUnfolderBase]: For 388/388 co-relation queries the response was YES. [2024-10-31 21:59:58,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10281 conditions, 4597 events. 3167/4597 cut-off events. For 388/388 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 25070 event pairs, 837 based on Foata normal form. 0/4510 useless extension candidates. Maximal degree in co-relation 10273. Up to 1958 conditions per place. [2024-10-31 21:59:58,963 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 62 selfloop transitions, 7 changer transitions 3/79 dead transitions. [2024-10-31 21:59:58,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 79 transitions, 345 flow [2024-10-31 21:59:58,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:58,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 21:59:58,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 115 transitions. [2024-10-31 21:59:58,966 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6845238095238095 [2024-10-31 21:59:58,967 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 109 flow. Second operand 4 states and 115 transitions. [2024-10-31 21:59:58,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 79 transitions, 345 flow [2024-10-31 21:59:58,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 79 transitions, 341 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 21:59:58,973 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 131 flow [2024-10-31 21:59:58,974 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2024-10-31 21:59:58,977 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 1 predicate places. [2024-10-31 21:59:58,977 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 131 flow [2024-10-31 21:59:58,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 21:59:58,978 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:58,978 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, 1, 1, 1, 1] [2024-10-31 21:59:58,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:59:58,978 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-31 21:59:58,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:58,979 INFO L85 PathProgramCache]: Analyzing trace with hash -200171123, now seen corresponding path program 1 times [2024-10-31 21:59:58,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:58,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307013010] [2024-10-31 21:59:58,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:58,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:59,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:59,275 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 21:59:59,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:59,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307013010] [2024-10-31 21:59:59,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307013010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:59,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:59,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:59,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803487331] [2024-10-31 21:59:59,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:59,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:59,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:59,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:59,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:59,289 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-10-31 21:59:59,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 21:59:59,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:59,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-10-31 21:59:59,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:00,436 INFO L124 PetriNetUnfolderBase]: 2899/4209 cut-off events. [2024-10-31 22:00:00,436 INFO L125 PetriNetUnfolderBase]: For 2058/2058 co-relation queries the response was YES. [2024-10-31 22:00:00,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9955 conditions, 4209 events. 2899/4209 cut-off events. For 2058/2058 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 23259 event pairs, 777 based on Foata normal form. 72/4266 useless extension candidates. Maximal degree in co-relation 9945. Up to 1958 conditions per place. [2024-10-31 22:00:00,450 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2024-10-31 22:00:00,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 73 transitions, 325 flow [2024-10-31 22:00:00,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:00:00,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:00:00,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2024-10-31 22:00:00,454 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2024-10-31 22:00:00,454 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 131 flow. Second operand 5 states and 119 transitions. [2024-10-31 22:00:00,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 73 transitions, 325 flow [2024-10-31 22:00:00,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 73 transitions, 301 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-10-31 22:00:00,461 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2024-10-31 22:00:00,462 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2024-10-31 22:00:00,463 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -2 predicate places. [2024-10-31 22:00:00,465 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2024-10-31 22:00:00,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 22:00:00,468 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2024-10-31 22:00:00,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2024-10-31 22:00:00,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2024-10-31 22:00:00,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2024-10-31 22:00:00,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2024-10-31 22:00:00,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2024-10-31 22:00:00,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-10-31 22:00:00,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2024-10-31 22:00:00,472 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2024-10-31 22:00:00,472 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2024-10-31 22:00:00,472 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2024-10-31 22:00:00,472 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2024-10-31 22:00:00,473 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2024-10-31 22:00:00,473 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2024-10-31 22:00:00,473 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2024-10-31 22:00:00,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:00:00,474 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-31 22:00:00,480 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:00:00,480 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:00:00,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:00:00 BasicIcfg [2024-10-31 22:00:00,487 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:00:00,487 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:00:00,488 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:00:00,488 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:00:00,488 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:52" (3/4) ... [2024-10-31 22:00:00,490 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 22:00:00,493 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-31 22:00:00,494 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-31 22:00:00,494 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-31 22:00:00,499 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 93 nodes and edges [2024-10-31 22:00:00,500 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-10-31 22:00:00,500 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-31 22:00:00,500 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-31 22:00:00,589 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d0beed-64aa-4945-b864-36ecf4bace58/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:00:00,589 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d0beed-64aa-4945-b864-36ecf4bace58/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 22:00:00,589 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:00:00,590 INFO L158 Benchmark]: Toolchain (without parser) took 10516.49ms. Allocated memory was 163.6MB in the beginning and 606.1MB in the end (delta: 442.5MB). Free memory was 121.7MB in the beginning and 370.2MB in the end (delta: -248.5MB). Peak memory consumption was 195.3MB. Max. memory is 16.1GB. [2024-10-31 22:00:00,590 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 61.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:00:00,591 INFO L158 Benchmark]: CACSL2BoogieTranslator took 910.59ms. Allocated memory is still 163.6MB. Free memory was 121.7MB in the beginning and 91.5MB in the end (delta: 30.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-31 22:00:00,591 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.62ms. Allocated memory is still 163.6MB. Free memory was 91.5MB in the beginning and 87.6MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:00:00,592 INFO L158 Benchmark]: Boogie Preprocessor took 98.23ms. Allocated memory is still 163.6MB. Free memory was 87.6MB in the beginning and 81.9MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-31 22:00:00,592 INFO L158 Benchmark]: RCFGBuilder took 1441.25ms. Allocated memory was 163.6MB in the beginning and 211.8MB in the end (delta: 48.2MB). Free memory was 81.9MB in the beginning and 101.9MB in the end (delta: -20.0MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2024-10-31 22:00:00,592 INFO L158 Benchmark]: TraceAbstraction took 7866.66ms. Allocated memory was 211.8MB in the beginning and 606.1MB in the end (delta: 394.3MB). Free memory was 100.8MB in the beginning and 376.5MB in the end (delta: -275.7MB). Peak memory consumption was 339.1MB. Max. memory is 16.1GB. [2024-10-31 22:00:00,593 INFO L158 Benchmark]: Witness Printer took 102.07ms. Allocated memory is still 606.1MB. Free memory was 375.4MB in the beginning and 370.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:00:00,595 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 61.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 910.59ms. Allocated memory is still 163.6MB. Free memory was 121.7MB in the beginning and 91.5MB in the end (delta: 30.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.62ms. Allocated memory is still 163.6MB. Free memory was 91.5MB in the beginning and 87.6MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.23ms. Allocated memory is still 163.6MB. Free memory was 87.6MB in the beginning and 81.9MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1441.25ms. Allocated memory was 163.6MB in the beginning and 211.8MB in the end (delta: 48.2MB). Free memory was 81.9MB in the beginning and 101.9MB in the end (delta: -20.0MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7866.66ms. Allocated memory was 211.8MB in the beginning and 606.1MB in the end (delta: 394.3MB). Free memory was 100.8MB in the beginning and 376.5MB in the end (delta: -275.7MB). Peak memory consumption was 339.1MB. Max. memory is 16.1GB. * Witness Printer took 102.07ms. Allocated memory is still 606.1MB. Free memory was 375.4MB in the beginning and 370.2MB 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: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 853]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 853]: 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, 76 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 249 IncrementalHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 0 mSDtfsCounter, 249 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=3, InterpolantAutomatonStates: 15, 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, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 22:00:00,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d0beed-64aa-4945-b864-36ecf4bace58/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE