./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-theta/unwind1-nondet.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-theta/unwind1-nondet.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1 --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 591990a0070f9287f734f2988edce5e1b5a43791c74b5c6b7374ff93ddaa2267 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:04:24,125 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:04:24,179 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 07:04:24,183 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:04:24,183 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:04:24,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:04:24,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:04:24,204 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:04:24,204 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:04:24,204 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:04:24,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:04:24,205 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:04:24,205 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:04:24,205 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:04:24,205 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:04:24,205 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:04:24,206 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:04:24,206 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:04:24,206 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:04:24,206 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:04:24,206 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:04:24,206 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:04:24,206 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:04:24,206 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:04:24,206 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 07:04:24,206 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:04:24,206 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:04:24,207 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:04:24,207 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:04:24,207 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:04:24,207 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:04:24,207 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:04:24,207 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:04:24,207 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:04:24,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:04:24,207 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:04:24,207 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:04:24,207 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:04:24,208 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:04:24,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:04:24,208 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:04:24,208 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:04:24,208 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:04:24,208 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:04:24,208 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:04:24,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:04:24,208 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:04:24,209 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:04:24,209 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:04:24,209 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:04:24,209 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1 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 -> 591990a0070f9287f734f2988edce5e1b5a43791c74b5c6b7374ff93ddaa2267 [2024-12-02 07:04:24,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:04:24,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:04:24,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:04:24,430 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:04:24,431 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:04:24,432 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/pthread-theta/unwind1-nondet.i [2024-12-02 07:04:27,010 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/data/16a79b309/3ff32f414d384cbc8e31ce5647d26eed/FLAG78277bf77 [2024-12-02 07:04:27,253 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:04:27,254 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/sv-benchmarks/c/pthread-theta/unwind1-nondet.i [2024-12-02 07:04:27,264 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/data/16a79b309/3ff32f414d384cbc8e31ce5647d26eed/FLAG78277bf77 [2024-12-02 07:04:27,587 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/data/16a79b309/3ff32f414d384cbc8e31ce5647d26eed [2024-12-02 07:04:27,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:04:27,590 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:04:27,591 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:04:27,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:04:27,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:04:27,595 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:04:27" (1/1) ... [2024-12-02 07:04:27,596 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a53bbcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:27, skipping insertion in model container [2024-12-02 07:04:27,596 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:04:27" (1/1) ... [2024-12-02 07:04:27,622 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:04:27,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:04:27,860 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:04:27,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:04:27,930 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:04:27,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:27 WrapperNode [2024-12-02 07:04:27,930 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:04:27,931 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:04:27,931 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:04:27,931 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:04:27,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:27" (1/1) ... [2024-12-02 07:04:27,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:27" (1/1) ... [2024-12-02 07:04:27,959 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-12-02 07:04:27,959 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:04:27,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:04:27,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:04:27,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:04:27,967 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:27" (1/1) ... [2024-12-02 07:04:27,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:27" (1/1) ... [2024-12-02 07:04:27,968 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:27" (1/1) ... [2024-12-02 07:04:27,978 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]. [2024-12-02 07:04:27,978 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:27" (1/1) ... [2024-12-02 07:04:27,978 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:27" (1/1) ... [2024-12-02 07:04:27,982 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:27" (1/1) ... [2024-12-02 07:04:27,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:27" (1/1) ... [2024-12-02 07:04:27,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:27" (1/1) ... [2024-12-02 07:04:27,985 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:27" (1/1) ... [2024-12-02 07:04:27,986 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:27" (1/1) ... [2024-12-02 07:04:27,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:04:27,988 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:04:27,988 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:04:27,988 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:04:27,989 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:27" (1/1) ... [2024-12-02 07:04:27,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:04:28,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:28,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:04:28,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:04:28,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:04:28,035 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-12-02 07:04:28,035 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-12-02 07:04:28,035 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-12-02 07:04:28,036 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-12-02 07:04:28,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:04:28,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:04:28,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:04:28,037 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 07:04:28,135 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:04:28,136 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:04:28,249 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 07:04:28,249 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:04:28,331 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:04:28,332 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 07:04:28,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:04:28 BoogieIcfgContainer [2024-12-02 07:04:28,332 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:04:28,333 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:04:28,333 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:04:28,337 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:04:28,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:04:27" (1/3) ... [2024-12-02 07:04:28,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49377e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:04:28, skipping insertion in model container [2024-12-02 07:04:28,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:27" (2/3) ... [2024-12-02 07:04:28,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49377e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:04:28, skipping insertion in model container [2024-12-02 07:04:28,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:04:28" (3/3) ... [2024-12-02 07:04:28,339 INFO L128 eAbstractionObserver]: Analyzing ICFG unwind1-nondet.i [2024-12-02 07:04:28,350 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:04:28,351 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG unwind1-nondet.i that has 3 procedures, 26 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2024-12-02 07:04:28,351 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 07:04:28,390 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-12-02 07:04:28,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 27 transitions, 68 flow [2024-12-02 07:04:28,447 INFO L124 PetriNetUnfolderBase]: 2/25 cut-off events. [2024-12-02 07:04:28,449 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-12-02 07:04:28,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 25 events. 2/25 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 48 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2024-12-02 07:04:28,451 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 27 transitions, 68 flow [2024-12-02 07:04:28,453 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 23 transitions, 55 flow [2024-12-02 07:04:28,459 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:04:28,469 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;@4a8739cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:04:28,469 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-12-02 07:04:28,475 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 07:04:28,475 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-12-02 07:04:28,475 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:04:28,475 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:04:28,476 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 07:04:28,476 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-12-02 07:04:28,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:28,482 INFO L85 PathProgramCache]: Analyzing trace with hash 220118807, now seen corresponding path program 1 times [2024-12-02 07:04:28,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:28,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867904634] [2024-12-02 07:04:28,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:28,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:28,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:28,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:28,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867904634] [2024-12-02 07:04:28,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867904634] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:04:28,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:04:28,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 07:04:28,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155649966] [2024-12-02 07:04:28,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:04:28,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:04:28,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:28,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:04:28,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:04:28,722 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-12-02 07:04:28,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-12-02 07:04:28,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:04:28,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-12-02 07:04:28,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:04:28,796 INFO L124 PetriNetUnfolderBase]: 82/192 cut-off events. [2024-12-02 07:04:28,796 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-12-02 07:04:28,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 192 events. 82/192 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 841 event pairs, 66 based on Foata normal form. 10/163 useless extension candidates. Maximal degree in co-relation 328. Up to 144 conditions per place. [2024-12-02 07:04:28,800 INFO L140 encePairwiseOnDemand]: 25/27 looper letters, 14 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2024-12-02 07:04:28,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 22 transitions, 83 flow [2024-12-02 07:04:28,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:04:28,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:04:28,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2024-12-02 07:04:28,810 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5308641975308642 [2024-12-02 07:04:28,811 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 55 flow. Second operand 3 states and 43 transitions. [2024-12-02 07:04:28,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 22 transitions, 83 flow [2024-12-02 07:04:28,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 22 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-02 07:04:28,816 INFO L231 Difference]: Finished difference. Result has 26 places, 22 transitions, 50 flow [2024-12-02 07:04:28,819 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=26, PETRI_TRANSITIONS=22} [2024-12-02 07:04:28,822 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2024-12-02 07:04:28,822 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 50 flow [2024-12-02 07:04:28,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-12-02 07:04:28,822 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:04:28,822 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 07:04:28,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:04:28,823 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-12-02 07:04:28,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:28,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1766251334, now seen corresponding path program 1 times [2024-12-02 07:04:28,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:28,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899165085] [2024-12-02 07:04:28,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:28,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:28,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:28,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:28,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899165085] [2024-12-02 07:04:28,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899165085] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:04:28,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:04:28,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 07:04:28,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529177563] [2024-12-02 07:04:28,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:04:28,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:04:28,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:28,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:04:28,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:04:28,895 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-12-02 07:04:28,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-12-02 07:04:28,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:04:28,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-12-02 07:04:28,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:04:28,953 INFO L124 PetriNetUnfolderBase]: 82/189 cut-off events. [2024-12-02 07:04:28,954 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-12-02 07:04:28,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 189 events. 82/189 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 801 event pairs, 66 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 344. Up to 144 conditions per place. [2024-12-02 07:04:28,955 INFO L140 encePairwiseOnDemand]: 25/27 looper letters, 14 selfloop transitions, 1 changer transitions 0/21 dead transitions. [2024-12-02 07:04:28,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 21 transitions, 78 flow [2024-12-02 07:04:28,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:04:28,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:04:28,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2024-12-02 07:04:28,957 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49382716049382713 [2024-12-02 07:04:28,957 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 50 flow. Second operand 3 states and 40 transitions. [2024-12-02 07:04:28,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 21 transitions, 78 flow [2024-12-02 07:04:28,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 21 transitions, 77 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 07:04:28,958 INFO L231 Difference]: Finished difference. Result has 26 places, 21 transitions, 49 flow [2024-12-02 07:04:28,958 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=49, PETRI_PLACES=26, PETRI_TRANSITIONS=21} [2024-12-02 07:04:28,959 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2024-12-02 07:04:28,959 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 21 transitions, 49 flow [2024-12-02 07:04:28,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-12-02 07:04:28,959 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:04:28,959 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:04:28,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:04:28,959 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-12-02 07:04:28,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:28,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1077630793, now seen corresponding path program 1 times [2024-12-02 07:04:28,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:28,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198207285] [2024-12-02 07:04:28,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:28,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:29,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:29,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:29,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198207285] [2024-12-02 07:04:29,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198207285] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:04:29,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:04:29,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:04:29,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246437292] [2024-12-02 07:04:29,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:04:29,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:04:29,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:29,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:04:29,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:04:29,061 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-12-02 07:04:29,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 49 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-12-02 07:04:29,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:04:29,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-12-02 07:04:29,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:04:29,158 INFO L124 PetriNetUnfolderBase]: 72/157 cut-off events. [2024-12-02 07:04:29,159 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-12-02 07:04:29,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 157 events. 72/157 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 539 event pairs, 18 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 307. Up to 55 conditions per place. [2024-12-02 07:04:29,160 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 15 selfloop transitions, 3 changer transitions 13/36 dead transitions. [2024-12-02 07:04:29,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 36 transitions, 144 flow [2024-12-02 07:04:29,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:04:29,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 07:04:29,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2024-12-02 07:04:29,161 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5777777777777777 [2024-12-02 07:04:29,161 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 49 flow. Second operand 5 states and 78 transitions. [2024-12-02 07:04:29,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 36 transitions, 144 flow [2024-12-02 07:04:29,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 36 transitions, 143 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 07:04:29,163 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 61 flow [2024-12-02 07:04:29,164 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=61, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2024-12-02 07:04:29,164 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 4 predicate places. [2024-12-02 07:04:29,164 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 61 flow [2024-12-02 07:04:29,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-12-02 07:04:29,165 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:04:29,165 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:04:29,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:04:29,165 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-12-02 07:04:29,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:29,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1474817840, now seen corresponding path program 1 times [2024-12-02 07:04:29,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:29,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083761265] [2024-12-02 07:04:29,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:29,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:29,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:29,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:29,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083761265] [2024-12-02 07:04:29,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083761265] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:04:29,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:04:29,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:04:29,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505681310] [2024-12-02 07:04:29,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:04:29,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:04:29,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:29,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:04:29,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:04:29,230 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-12-02 07:04:29,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 61 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-12-02 07:04:29,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:04:29,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-12-02 07:04:29,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:04:29,297 INFO L124 PetriNetUnfolderBase]: 50/121 cut-off events. [2024-12-02 07:04:29,297 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-12-02 07:04:29,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 121 events. 50/121 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 332 event pairs, 32 based on Foata normal form. 5/115 useless extension candidates. Maximal degree in co-relation 266. Up to 80 conditions per place. [2024-12-02 07:04:29,298 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 20 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2024-12-02 07:04:29,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 129 flow [2024-12-02 07:04:29,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:04:29,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 07:04:29,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions. [2024-12-02 07:04:29,300 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5648148148148148 [2024-12-02 07:04:29,300 INFO L175 Difference]: Start difference. First operand has 32 places, 20 transitions, 61 flow. Second operand 4 states and 61 transitions. [2024-12-02 07:04:29,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 129 flow [2024-12-02 07:04:29,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 115 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-12-02 07:04:29,301 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 73 flow [2024-12-02 07:04:29,301 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=73, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2024-12-02 07:04:29,302 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 2 predicate places. [2024-12-02 07:04:29,302 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 73 flow [2024-12-02 07:04:29,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-12-02 07:04:29,302 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:04:29,302 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:04:29,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:04:29,303 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-12-02 07:04:29,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:29,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1217413740, now seen corresponding path program 1 times [2024-12-02 07:04:29,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:29,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085902429] [2024-12-02 07:04:29,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:29,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:29,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:29,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:29,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085902429] [2024-12-02 07:04:29,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085902429] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:04:29,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929850554] [2024-12-02 07:04:29,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:29,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:29,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:29,384 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:04:29,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:04:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:29,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 07:04:29,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:04:29,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:29,500 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:04:29,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929850554] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:04:29,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:04:29,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-12-02 07:04:29,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589702690] [2024-12-02 07:04:29,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:04:29,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:04:29,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:29,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:04:29,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:04:29,512 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-12-02 07:04:29,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 73 flow. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:04:29,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:04:29,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-12-02 07:04:29,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:04:29,607 INFO L124 PetriNetUnfolderBase]: 45/111 cut-off events. [2024-12-02 07:04:29,607 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-12-02 07:04:29,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 111 events. 45/111 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 289 event pairs, 12 based on Foata normal form. 5/105 useless extension candidates. Maximal degree in co-relation 260. Up to 35 conditions per place. [2024-12-02 07:04:29,608 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 23 selfloop transitions, 5 changer transitions 0/33 dead transitions. [2024-12-02 07:04:29,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 33 transitions, 153 flow [2024-12-02 07:04:29,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:04:29,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 07:04:29,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 83 transitions. [2024-12-02 07:04:29,610 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5123456790123457 [2024-12-02 07:04:29,610 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 73 flow. Second operand 6 states and 83 transitions. [2024-12-02 07:04:29,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 33 transitions, 153 flow [2024-12-02 07:04:29,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 33 transitions, 151 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 07:04:29,612 INFO L231 Difference]: Finished difference. Result has 33 places, 21 transitions, 77 flow [2024-12-02 07:04:29,612 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=77, PETRI_PLACES=33, PETRI_TRANSITIONS=21} [2024-12-02 07:04:29,613 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 5 predicate places. [2024-12-02 07:04:29,613 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 77 flow [2024-12-02 07:04:29,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:04:29,613 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:04:29,613 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:04:29,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:04:29,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:29,814 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-12-02 07:04:29,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:29,814 INFO L85 PathProgramCache]: Analyzing trace with hash -914879475, now seen corresponding path program 1 times [2024-12-02 07:04:29,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:29,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549517507] [2024-12-02 07:04:29,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:29,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:29,887 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:29,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:29,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549517507] [2024-12-02 07:04:29,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549517507] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:04:29,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850906288] [2024-12-02 07:04:29,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:29,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:29,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:29,890 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:04:29,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:04:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:29,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 07:04:29,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:04:29,979 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:29,979 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:04:30,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:30,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850906288] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:04:30,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:04:30,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-12-02 07:04:30,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759203167] [2024-12-02 07:04:30,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:04:30,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 07:04:30,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:30,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 07:04:30,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:04:30,046 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-12-02 07:04:30,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 77 flow. Second operand has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 12 states have internal predecessors, (127), 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) [2024-12-02 07:04:30,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:04:30,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-12-02 07:04:30,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:04:30,194 INFO L124 PetriNetUnfolderBase]: 75/186 cut-off events. [2024-12-02 07:04:30,194 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2024-12-02 07:04:30,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 186 events. 75/186 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 490 event pairs, 27 based on Foata normal form. 15/195 useless extension candidates. Maximal degree in co-relation 475. Up to 70 conditions per place. [2024-12-02 07:04:30,195 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 37 selfloop transitions, 9 changer transitions 0/51 dead transitions. [2024-12-02 07:04:30,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 261 flow [2024-12-02 07:04:30,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:04:30,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 07:04:30,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 139 transitions. [2024-12-02 07:04:30,197 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5148148148148148 [2024-12-02 07:04:30,197 INFO L175 Difference]: Start difference. First operand has 33 places, 21 transitions, 77 flow. Second operand 10 states and 139 transitions. [2024-12-02 07:04:30,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 261 flow [2024-12-02 07:04:30,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 51 transitions, 235 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-12-02 07:04:30,199 INFO L231 Difference]: Finished difference. Result has 40 places, 27 transitions, 121 flow [2024-12-02 07:04:30,199 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=121, PETRI_PLACES=40, PETRI_TRANSITIONS=27} [2024-12-02 07:04:30,200 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 12 predicate places. [2024-12-02 07:04:30,200 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 27 transitions, 121 flow [2024-12-02 07:04:30,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 12 states have internal predecessors, (127), 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) [2024-12-02 07:04:30,200 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:04:30,200 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:04:30,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:04:30,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:30,401 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-12-02 07:04:30,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:30,401 INFO L85 PathProgramCache]: Analyzing trace with hash -462949079, now seen corresponding path program 2 times [2024-12-02 07:04:30,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:30,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592633577] [2024-12-02 07:04:30,401 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:04:30,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:30,411 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:04:30,411 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:04:30,460 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-02 07:04:30,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:30,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592633577] [2024-12-02 07:04:30,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592633577] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:04:30,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853576800] [2024-12-02 07:04:30,461 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:04:30,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:30,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:30,462 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:04:30,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 07:04:30,516 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:04:30,517 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:04:30,517 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 07:04:30,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:04:30,600 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-02 07:04:30,600 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:04:30,672 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-02 07:04:30,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853576800] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:04:30,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:04:30,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-12-02 07:04:30,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202952423] [2024-12-02 07:04:30,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:04:30,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 07:04:30,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:30,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 07:04:30,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:04:30,721 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2024-12-02 07:04:30,721 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 121 flow. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 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) [2024-12-02 07:04:30,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:04:30,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2024-12-02 07:04:30,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:04:30,889 INFO L124 PetriNetUnfolderBase]: 134/326 cut-off events. [2024-12-02 07:04:30,889 INFO L125 PetriNetUnfolderBase]: For 412/412 co-relation queries the response was YES. [2024-12-02 07:04:30,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 886 conditions, 326 events. 134/326 cut-off events. For 412/412 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1158 event pairs, 18 based on Foata normal form. 10/331 useless extension candidates. Maximal degree in co-relation 874. Up to 55 conditions per place. [2024-12-02 07:04:30,891 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2024-12-02 07:04:30,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 54 transitions, 328 flow [2024-12-02 07:04:30,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:04:30,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-12-02 07:04:30,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 70 transitions. [2024-12-02 07:04:30,892 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.32407407407407407 [2024-12-02 07:04:30,892 INFO L175 Difference]: Start difference. First operand has 40 places, 27 transitions, 121 flow. Second operand 8 states and 70 transitions. [2024-12-02 07:04:30,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 54 transitions, 328 flow [2024-12-02 07:04:30,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 54 transitions, 288 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-12-02 07:04:30,895 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2024-12-02 07:04:30,895 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2024-12-02 07:04:30,896 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 12 predicate places. [2024-12-02 07:04:30,896 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2024-12-02 07:04:30,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 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) [2024-12-02 07:04:30,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-12-02 07:04:30,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2024-12-02 07:04:30,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-12-02 07:04:30,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-12-02 07:04:30,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-12-02 07:04:30,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-12-02 07:04:30,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-12-02 07:04:30,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-12-02 07:04:30,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-12-02 07:04:30,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-12-02 07:04:30,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 07:04:31,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:31,101 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-12-02 07:04:31,104 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-02 07:04:31,104 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:04:31,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:04:31 BasicIcfg [2024-12-02 07:04:31,108 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:04:31,108 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:04:31,108 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:04:31,108 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:04:31,109 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:04:28" (3/4) ... [2024-12-02 07:04:31,110 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 07:04:31,112 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2024-12-02 07:04:31,112 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f2 [2024-12-02 07:04:31,114 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-12-02 07:04:31,114 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-12-02 07:04:31,114 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-02 07:04:31,115 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 07:04:31,165 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 07:04:31,165 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 07:04:31,165 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:04:31,166 INFO L158 Benchmark]: Toolchain (without parser) took 3576.35ms. Allocated memory is still 142.6MB. Free memory was 115.5MB in the beginning and 90.6MB in the end (delta: 24.9MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2024-12-02 07:04:31,166 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:04:31,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.91ms. Allocated memory is still 142.6MB. Free memory was 115.3MB in the beginning and 95.6MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 07:04:31,167 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.10ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 94.0MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:04:31,167 INFO L158 Benchmark]: Boogie Preprocessor took 28.22ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 92.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:04:31,167 INFO L158 Benchmark]: RCFGBuilder took 343.98ms. Allocated memory is still 142.6MB. Free memory was 92.2MB in the beginning and 71.9MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 07:04:31,167 INFO L158 Benchmark]: TraceAbstraction took 2774.63ms. Allocated memory is still 142.6MB. Free memory was 71.3MB in the beginning and 95.1MB in the end (delta: -23.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:04:31,168 INFO L158 Benchmark]: Witness Printer took 57.14ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 90.6MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:04:31,169 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.91ms. Allocated memory is still 142.6MB. Free memory was 115.3MB in the beginning and 95.6MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.10ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 94.0MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.22ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 92.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 343.98ms. Allocated memory is still 142.6MB. Free memory was 92.2MB in the beginning and 71.9MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2774.63ms. Allocated memory is still 142.6MB. Free memory was 71.3MB in the beginning and 95.1MB in the end (delta: -23.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.14ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 90.6MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: 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 5 procedures, 45 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 258 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 218 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 81 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 558 IncrementalHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 21 mSDtfsCounter, 558 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=6, InterpolantAutomatonStates: 39, 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, 0.7s InterpolantComputationTime, 128 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 409 SizeOfPredicates, 9 NumberOfNonLiveVariables, 235 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 68/103 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 07:04:31,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdbed9a-8cd6-4191-b9fa-ecc6eaba02a3/bin/uautomizer-verify-84ZbGMXZE1/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