./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b 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_6934e484-9db6-46a3-a087-1ee97bd6bf77/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6934e484-9db6-46a3-a087-1ee97bd6bf77/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6934e484-9db6-46a3-a087-1ee97bd6bf77/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6934e484-9db6-46a3-a087-1ee97bd6bf77/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6934e484-9db6-46a3-a087-1ee97bd6bf77/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6934e484-9db6-46a3-a087-1ee97bd6bf77/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:03:34,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:03:34,110 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6934e484-9db6-46a3-a087-1ee97bd6bf77/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:03:34,120 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:03:34,122 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:03:34,186 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:03:34,187 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:03:34,188 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:03:34,189 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:03:34,190 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:03:34,191 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:03:34,191 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:03:34,192 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:03:34,193 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:03:34,193 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:03:34,194 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:03:34,194 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:03:34,195 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:03:34,195 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:03:34,196 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:03:34,197 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:03:34,201 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:03:34,202 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:03:34,202 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:03:34,203 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:03:34,203 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:03:34,203 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:03:34,204 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:03:34,205 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:03:34,205 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:03:34,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:03:34,207 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:03:34,207 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:03:34,208 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:03:34,208 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:03:34,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:03:34,209 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:03:34,209 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:03:34,209 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:03:34,209 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:03:34,210 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:03:34,222 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_6934e484-9db6-46a3-a087-1ee97bd6bf77/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6934e484-9db6-46a3-a087-1ee97bd6bf77/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a [2023-11-06 22:03:34,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:03:34,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:03:34,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:03:34,641 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:03:34,641 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:03:34,643 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6934e484-9db6-46a3-a087-1ee97bd6bf77/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2023-11-06 22:03:37,890 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:03:38,262 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:03:38,263 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6934e484-9db6-46a3-a087-1ee97bd6bf77/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2023-11-06 22:03:38,301 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6934e484-9db6-46a3-a087-1ee97bd6bf77/bin/uautomizer-verify-WvqO1wxjHP/data/e895d4c4d/a2858ce245774ccaa50b06e58d3e887e/FLAG959c5e0af [2023-11-06 22:03:38,327 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6934e484-9db6-46a3-a087-1ee97bd6bf77/bin/uautomizer-verify-WvqO1wxjHP/data/e895d4c4d/a2858ce245774ccaa50b06e58d3e887e [2023-11-06 22:03:38,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:03:38,332 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:03:38,333 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:03:38,334 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:03:38,342 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:03:38,343 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:03:38" (1/1) ... [2023-11-06 22:03:38,344 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eeaf443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:38, skipping insertion in model container [2023-11-06 22:03:38,344 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:03:38" (1/1) ... [2023-11-06 22:03:38,424 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:03:39,130 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:03:39,144 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:03:39,210 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:03:39,309 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:03:39,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:39 WrapperNode [2023-11-06 22:03:39,309 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:03:39,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:03:39,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:03:39,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:03:39,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:39" (1/1) ... [2023-11-06 22:03:39,347 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:39" (1/1) ... [2023-11-06 22:03:39,390 INFO L138 Inliner]: procedures = 365, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 55 [2023-11-06 22:03:39,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:03:39,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:03:39,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:03:39,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:03:39,403 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:39" (1/1) ... [2023-11-06 22:03:39,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:39" (1/1) ... [2023-11-06 22:03:39,408 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:39" (1/1) ... [2023-11-06 22:03:39,408 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:39" (1/1) ... [2023-11-06 22:03:39,424 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:39" (1/1) ... [2023-11-06 22:03:39,426 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:39" (1/1) ... [2023-11-06 22:03:39,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:39" (1/1) ... [2023-11-06 22:03:39,430 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:39" (1/1) ... [2023-11-06 22:03:39,433 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:03:39,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:03:39,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:03:39,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:03:39,435 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:39" (1/1) ... [2023-11-06 22:03:39,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:03:39,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6934e484-9db6-46a3-a087-1ee97bd6bf77/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:39,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6934e484-9db6-46a3-a087-1ee97bd6bf77/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:03:39,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6934e484-9db6-46a3-a087-1ee97bd6bf77/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:03:39,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:03:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:03:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:03:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:03:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:03:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:03:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 22:03:39,527 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 22:03:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:03:39,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:03:39,529 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:03:39,714 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:03:39,716 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:03:39,954 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:03:39,962 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:03:39,962 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:03:39,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:03:39 BoogieIcfgContainer [2023-11-06 22:03:39,965 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:03:39,967 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:03:39,967 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:03:39,972 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:03:39,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:03:38" (1/3) ... [2023-11-06 22:03:39,973 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef66cf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:03:39, skipping insertion in model container [2023-11-06 22:03:39,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:39" (2/3) ... [2023-11-06 22:03:39,973 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef66cf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:03:39, skipping insertion in model container [2023-11-06 22:03:39,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:03:39" (3/3) ... [2023-11-06 22:03:39,975 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2023-11-06 22:03:39,983 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:03:39,992 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:03:39,992 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-06 22:03:39,992 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:03:40,046 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:03:40,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 69 transitions, 142 flow [2023-11-06 22:03:40,133 INFO L124 PetriNetUnfolderBase]: 0/68 cut-off events. [2023-11-06 22:03:40,133 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:03:40,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 68 events. 0/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-06 22:03:40,137 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 69 transitions, 142 flow [2023-11-06 22:03:40,142 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 68 transitions, 139 flow [2023-11-06 22:03:40,147 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:03:40,159 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 68 transitions, 139 flow [2023-11-06 22:03:40,162 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 68 transitions, 139 flow [2023-11-06 22:03:40,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 68 transitions, 139 flow [2023-11-06 22:03:40,188 INFO L124 PetriNetUnfolderBase]: 0/68 cut-off events. [2023-11-06 22:03:40,189 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:03:40,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 68 events. 0/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-06 22:03:40,191 INFO L119 LiptonReduction]: Number of co-enabled transitions 1092 [2023-11-06 22:03:42,974 INFO L134 LiptonReduction]: Checked pairs total: 1539 [2023-11-06 22:03:42,975 INFO L136 LiptonReduction]: Total number of compositions: 62 [2023-11-06 22:03:43,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:03:43,020 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@62afe701, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:03:43,021 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-06 22:03:43,026 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:03:43,026 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-11-06 22:03:43,027 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:03:43,027 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:03:43,028 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-06 22:03:43,028 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-06 22:03:43,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:43,037 INFO L85 PathProgramCache]: Analyzing trace with hash 7790251, now seen corresponding path program 1 times [2023-11-06 22:03:43,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:43,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422813088] [2023-11-06 22:03:43,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:43,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:43,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:43,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:43,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422813088] [2023-11-06 22:03:43,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422813088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:43,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:43,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:03:43,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825726564] [2023-11-06 22:03:43,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:43,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:03:43,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:43,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:03:43,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:03:43,889 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 131 [2023-11-06 22:03:43,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 14 transitions, 31 flow. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:43,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:03:43,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 131 [2023-11-06 22:03:43,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:03:44,031 INFO L124 PetriNetUnfolderBase]: 26/66 cut-off events. [2023-11-06 22:03:44,031 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:03:44,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 66 events. 26/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 196 event pairs, 4 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 128. Up to 43 conditions per place. [2023-11-06 22:03:44,038 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 18 selfloop transitions, 5 changer transitions 4/27 dead transitions. [2023-11-06 22:03:44,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 27 transitions, 111 flow [2023-11-06 22:03:44,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:03:44,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:03:44,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2023-11-06 22:03:44,073 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5057251908396947 [2023-11-06 22:03:44,074 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 265 transitions. [2023-11-06 22:03:44,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 265 transitions. [2023-11-06 22:03:44,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:03:44,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 265 transitions. [2023-11-06 22:03:44,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:44,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:44,096 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:44,099 INFO L175 Difference]: Start difference. First operand has 18 places, 14 transitions, 31 flow. Second operand 4 states and 265 transitions. [2023-11-06 22:03:44,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 27 transitions, 111 flow [2023-11-06 22:03:44,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 27 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:03:44,105 INFO L231 Difference]: Finished difference. Result has 22 places, 16 transitions, 56 flow [2023-11-06 22:03:44,108 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=56, PETRI_PLACES=22, PETRI_TRANSITIONS=16} [2023-11-06 22:03:44,115 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 4 predicate places. [2023-11-06 22:03:44,116 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 56 flow [2023-11-06 22:03:44,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:44,117 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:03:44,117 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-06 22:03:44,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:03:44,118 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-06 22:03:44,118 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:44,118 INFO L85 PathProgramCache]: Analyzing trace with hash 7790163, now seen corresponding path program 1 times [2023-11-06 22:03:44,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:44,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9889385] [2023-11-06 22:03:44,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:44,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:44,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:44,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:44,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9889385] [2023-11-06 22:03:44,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9889385] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:44,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:44,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:03:44,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276018702] [2023-11-06 22:03:44,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:44,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:03:44,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:44,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:03:44,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:03:44,530 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 131 [2023-11-06 22:03:44,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:44,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:03:44,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 131 [2023-11-06 22:03:44,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:03:44,625 INFO L124 PetriNetUnfolderBase]: 16/46 cut-off events. [2023-11-06 22:03:44,626 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-11-06 22:03:44,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 46 events. 16/46 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 123 event pairs, 4 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 112. Up to 33 conditions per place. [2023-11-06 22:03:44,630 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 14 selfloop transitions, 6 changer transitions 2/22 dead transitions. [2023-11-06 22:03:44,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 22 transitions, 119 flow [2023-11-06 22:03:44,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:03:44,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:03:44,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 259 transitions. [2023-11-06 22:03:44,634 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49427480916030536 [2023-11-06 22:03:44,634 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 259 transitions. [2023-11-06 22:03:44,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 259 transitions. [2023-11-06 22:03:44,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:03:44,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 259 transitions. [2023-11-06 22:03:44,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:44,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:44,641 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:44,641 INFO L175 Difference]: Start difference. First operand has 22 places, 16 transitions, 56 flow. Second operand 4 states and 259 transitions. [2023-11-06 22:03:44,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 22 transitions, 119 flow [2023-11-06 22:03:44,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 22 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:03:44,645 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 83 flow [2023-11-06 22:03:44,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=83, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2023-11-06 22:03:44,650 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 8 predicate places. [2023-11-06 22:03:44,650 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 83 flow [2023-11-06 22:03:44,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:44,651 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:03:44,651 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:44,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:03:44,653 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-06 22:03:44,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:44,659 INFO L85 PathProgramCache]: Analyzing trace with hash 151969206, now seen corresponding path program 1 times [2023-11-06 22:03:44,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:44,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757224924] [2023-11-06 22:03:44,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:44,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:44,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:44,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:44,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757224924] [2023-11-06 22:03:44,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757224924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:44,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:44,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:03:44,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008359396] [2023-11-06 22:03:44,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:44,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:03:44,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:44,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:03:44,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:03:44,975 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 131 [2023-11-06 22:03:44,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:44,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:03:44,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 131 [2023-11-06 22:03:44,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:03:45,056 INFO L124 PetriNetUnfolderBase]: 12/46 cut-off events. [2023-11-06 22:03:45,056 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-11-06 22:03:45,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 46 events. 12/46 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 143 event pairs, 2 based on Foata normal form. 3/44 useless extension candidates. Maximal degree in co-relation 127. Up to 24 conditions per place. [2023-11-06 22:03:45,059 INFO L140 encePairwiseOnDemand]: 127/131 looper letters, 20 selfloop transitions, 4 changer transitions 1/25 dead transitions. [2023-11-06 22:03:45,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 25 transitions, 155 flow [2023-11-06 22:03:45,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:03:45,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:03:45,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2023-11-06 22:03:45,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5089058524173028 [2023-11-06 22:03:45,063 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 200 transitions. [2023-11-06 22:03:45,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 200 transitions. [2023-11-06 22:03:45,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:03:45,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 200 transitions. [2023-11-06 22:03:45,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:45,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:45,068 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:45,068 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 83 flow. Second operand 3 states and 200 transitions. [2023-11-06 22:03:45,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 25 transitions, 155 flow [2023-11-06 22:03:45,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 25 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:03:45,072 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 98 flow [2023-11-06 22:03:45,072 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2023-11-06 22:03:45,074 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 10 predicate places. [2023-11-06 22:03:45,075 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 98 flow [2023-11-06 22:03:45,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:45,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:03:45,075 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:45,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:03:45,081 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-06 22:03:45,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:45,082 INFO L85 PathProgramCache]: Analyzing trace with hash 149275559, now seen corresponding path program 1 times [2023-11-06 22:03:45,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:45,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781181717] [2023-11-06 22:03:45,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:45,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:45,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:45,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:45,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781181717] [2023-11-06 22:03:45,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781181717] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:45,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:45,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:03:45,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43409152] [2023-11-06 22:03:45,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:45,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:03:45,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:45,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:03:45,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:03:45,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 131 [2023-11-06 22:03:45,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:45,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:03:45,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 131 [2023-11-06 22:03:45,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:03:45,436 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-06 22:03:45,436 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-11-06 22:03:45,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 18 events. 0/18 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 25 event pairs, 0 based on Foata normal form. 3/19 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2023-11-06 22:03:45,437 INFO L140 encePairwiseOnDemand]: 128/131 looper letters, 13 selfloop transitions, 3 changer transitions 0/16 dead transitions. [2023-11-06 22:03:45,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 16 transitions, 113 flow [2023-11-06 22:03:45,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:03:45,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:03:45,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 192 transitions. [2023-11-06 22:03:45,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48854961832061067 [2023-11-06 22:03:45,439 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 192 transitions. [2023-11-06 22:03:45,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 192 transitions. [2023-11-06 22:03:45,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:03:45,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 192 transitions. [2023-11-06 22:03:45,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:45,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:45,443 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:45,443 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 98 flow. Second operand 3 states and 192 transitions. [2023-11-06 22:03:45,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 16 transitions, 113 flow [2023-11-06 22:03:45,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 16 transitions, 105 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-06 22:03:45,446 INFO L231 Difference]: Finished difference. Result has 29 places, 16 transitions, 86 flow [2023-11-06 22:03:45,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=29, PETRI_TRANSITIONS=16} [2023-11-06 22:03:45,449 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 11 predicate places. [2023-11-06 22:03:45,449 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 16 transitions, 86 flow [2023-11-06 22:03:45,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:45,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:03:45,450 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:45,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:03:45,450 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-06 22:03:45,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:45,451 INFO L85 PathProgramCache]: Analyzing trace with hash 396289072, now seen corresponding path program 1 times [2023-11-06 22:03:45,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:45,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346066049] [2023-11-06 22:03:45,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:45,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:46,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:46,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:46,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346066049] [2023-11-06 22:03:46,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346066049] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:46,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:46,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:03:46,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564517740] [2023-11-06 22:03:46,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:46,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:03:46,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:46,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:03:46,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:03:46,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 131 [2023-11-06 22:03:46,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 16 transitions, 86 flow. Second operand has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:46,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:03:46,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 131 [2023-11-06 22:03:46,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:03:46,390 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2023-11-06 22:03:46,391 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2023-11-06 22:03:46,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 17 events. 0/17 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 21 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2023-11-06 22:03:46,391 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 8 selfloop transitions, 7 changer transitions 2/17 dead transitions. [2023-11-06 22:03:46,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 17 transitions, 120 flow [2023-11-06 22:03:46,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:03:46,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 22:03:46,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 434 transitions. [2023-11-06 22:03:46,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41412213740458015 [2023-11-06 22:03:46,395 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 434 transitions. [2023-11-06 22:03:46,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 434 transitions. [2023-11-06 22:03:46,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:03:46,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 434 transitions. [2023-11-06 22:03:46,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 54.25) internal successors, (434), 8 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:46,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:46,403 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:46,403 INFO L175 Difference]: Start difference. First operand has 29 places, 16 transitions, 86 flow. Second operand 8 states and 434 transitions. [2023-11-06 22:03:46,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 17 transitions, 120 flow [2023-11-06 22:03:46,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 17 transitions, 114 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:03:46,408 INFO L231 Difference]: Finished difference. Result has 33 places, 15 transitions, 90 flow [2023-11-06 22:03:46,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=90, PETRI_PLACES=33, PETRI_TRANSITIONS=15} [2023-11-06 22:03:46,411 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 15 predicate places. [2023-11-06 22:03:46,411 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 15 transitions, 90 flow [2023-11-06 22:03:46,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:46,412 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:03:46,412 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:46,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:03:46,412 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-06 22:03:46,413 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:46,413 INFO L85 PathProgramCache]: Analyzing trace with hash 396289081, now seen corresponding path program 1 times [2023-11-06 22:03:46,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:46,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294920655] [2023-11-06 22:03:46,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:46,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:46,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:46,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:46,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294920655] [2023-11-06 22:03:46,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294920655] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:46,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:46,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:03:46,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758743089] [2023-11-06 22:03:46,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:46,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:03:46,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:46,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:03:46,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:03:47,016 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 131 [2023-11-06 22:03:47,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 15 transitions, 90 flow. Second operand has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:47,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:03:47,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 131 [2023-11-06 22:03:47,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:03:47,138 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2023-11-06 22:03:47,138 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-11-06 22:03:47,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 15 events. 0/15 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2023-11-06 22:03:47,139 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 6 selfloop transitions, 3 changer transitions 6/15 dead transitions. [2023-11-06 22:03:47,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 15 transitions, 118 flow [2023-11-06 22:03:47,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:03:47,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 22:03:47,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 484 transitions. [2023-11-06 22:03:47,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41051738761662426 [2023-11-06 22:03:47,142 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 484 transitions. [2023-11-06 22:03:47,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 484 transitions. [2023-11-06 22:03:47,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:03:47,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 484 transitions. [2023-11-06 22:03:47,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 53.77777777777778) internal successors, (484), 9 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:47,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:47,149 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:47,149 INFO L175 Difference]: Start difference. First operand has 33 places, 15 transitions, 90 flow. Second operand 9 states and 484 transitions. [2023-11-06 22:03:47,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 15 transitions, 118 flow [2023-11-06 22:03:47,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 15 transitions, 98 flow, removed 2 selfloop flow, removed 7 redundant places. [2023-11-06 22:03:47,152 INFO L231 Difference]: Finished difference. Result has 33 places, 9 transitions, 47 flow [2023-11-06 22:03:47,152 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=47, PETRI_PLACES=33, PETRI_TRANSITIONS=9} [2023-11-06 22:03:47,153 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 15 predicate places. [2023-11-06 22:03:47,153 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 9 transitions, 47 flow [2023-11-06 22:03:47,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:47,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:03:47,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:47,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:03:47,155 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-06 22:03:47,155 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:47,155 INFO L85 PathProgramCache]: Analyzing trace with hash 322379611, now seen corresponding path program 1 times [2023-11-06 22:03:47,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:47,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790904313] [2023-11-06 22:03:47,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:47,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:47,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:47,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:47,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790904313] [2023-11-06 22:03:47,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790904313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:47,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:47,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:03:47,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069905790] [2023-11-06 22:03:47,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:47,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:03:47,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:47,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:03:47,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:03:47,634 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 131 [2023-11-06 22:03:47,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 9 transitions, 47 flow. Second operand has 8 states, 8 states have (on average 52.0) internal successors, (416), 8 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:47,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:03:47,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 131 [2023-11-06 22:03:47,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:03:47,692 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-11-06 22:03:47,692 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-06 22:03:47,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 8 events. 0/8 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2023-11-06 22:03:47,693 INFO L140 encePairwiseOnDemand]: 124/131 looper letters, 2 selfloop transitions, 6 changer transitions 0/8 dead transitions. [2023-11-06 22:03:47,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 8 transitions, 59 flow [2023-11-06 22:03:47,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:03:47,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:03:47,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 315 transitions. [2023-11-06 22:03:47,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40076335877862596 [2023-11-06 22:03:47,696 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 315 transitions. [2023-11-06 22:03:47,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 315 transitions. [2023-11-06 22:03:47,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:03:47,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 315 transitions. [2023-11-06 22:03:47,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 52.5) internal successors, (315), 6 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:47,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:47,700 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:47,700 INFO L175 Difference]: Start difference. First operand has 33 places, 9 transitions, 47 flow. Second operand 6 states and 315 transitions. [2023-11-06 22:03:47,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 8 transitions, 59 flow [2023-11-06 22:03:47,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 8 transitions, 43 flow, removed 2 selfloop flow, removed 7 redundant places. [2023-11-06 22:03:47,702 INFO L231 Difference]: Finished difference. Result has 19 places, 8 transitions, 39 flow [2023-11-06 22:03:47,702 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=27, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=39, PETRI_PLACES=19, PETRI_TRANSITIONS=8} [2023-11-06 22:03:47,703 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places. [2023-11-06 22:03:47,703 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 8 transitions, 39 flow [2023-11-06 22:03:47,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 52.0) internal successors, (416), 8 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:47,704 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:03:47,704 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:47,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:03:47,704 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-06 22:03:47,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:47,705 INFO L85 PathProgramCache]: Analyzing trace with hash 322379629, now seen corresponding path program 1 times [2023-11-06 22:03:47,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:47,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192713445] [2023-11-06 22:03:47,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:47,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:48,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:48,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:48,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192713445] [2023-11-06 22:03:48,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192713445] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:48,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:48,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:03:48,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269526230] [2023-11-06 22:03:48,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:48,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:03:48,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:48,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:03:48,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:03:48,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 131 [2023-11-06 22:03:48,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 8 transitions, 39 flow. Second operand has 8 states, 8 states have (on average 49.0) internal successors, (392), 8 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:48,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:03:48,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 131 [2023-11-06 22:03:48,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:03:48,352 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2023-11-06 22:03:48,352 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-06 22:03:48,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 7 events. 0/7 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2023-11-06 22:03:48,353 INFO L140 encePairwiseOnDemand]: 124/131 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2023-11-06 22:03:48,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 7 transitions, 51 flow [2023-11-06 22:03:48,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:03:48,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 22:03:48,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 392 transitions. [2023-11-06 22:03:48,355 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37404580152671757 [2023-11-06 22:03:48,356 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 392 transitions. [2023-11-06 22:03:48,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 392 transitions. [2023-11-06 22:03:48,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:03:48,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 392 transitions. [2023-11-06 22:03:48,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 49.0) internal successors, (392), 8 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:48,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:48,363 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:48,363 INFO L175 Difference]: Start difference. First operand has 19 places, 8 transitions, 39 flow. Second operand 8 states and 392 transitions. [2023-11-06 22:03:48,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 7 transitions, 51 flow [2023-11-06 22:03:48,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 7 transitions, 39 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-11-06 22:03:48,365 INFO L231 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2023-11-06 22:03:48,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=25, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=20, PETRI_TRANSITIONS=0} [2023-11-06 22:03:48,368 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 2 predicate places. [2023-11-06 22:03:48,368 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 0 transitions, 0 flow [2023-11-06 22:03:48,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 49.0) internal successors, (392), 8 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:48,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-11-06 22:03:48,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-11-06 22:03:48,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-06 22:03:48,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2023-11-06 22:03:48,374 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-11-06 22:03:48,374 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-11-06 22:03:48,374 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-11-06 22:03:48,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:03:48,375 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:48,381 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:03:48,381 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:03:48,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:03:48 BasicIcfg [2023-11-06 22:03:48,397 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:03:48,397 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:03:48,398 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:03:48,398 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:03:48,398 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:03:39" (3/4) ... [2023-11-06 22:03:48,400 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:03:48,406 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-06 22:03:48,413 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-06 22:03:48,413 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:03:48,414 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:03:48,474 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6934e484-9db6-46a3-a087-1ee97bd6bf77/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:03:48,475 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6934e484-9db6-46a3-a087-1ee97bd6bf77/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:03:48,475 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:03:48,476 INFO L158 Benchmark]: Toolchain (without parser) took 10144.03ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 140.5MB in the beginning and 163.8MB in the end (delta: -23.2MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2023-11-06 22:03:48,476 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory was 97.7MB in the beginning and 97.6MB in the end (delta: 74.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:03:48,476 INFO L158 Benchmark]: CACSL2BoogieTranslator took 976.34ms. Allocated memory is still 172.0MB. Free memory was 139.9MB in the beginning and 103.6MB in the end (delta: 36.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-06 22:03:48,477 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.05ms. Allocated memory is still 172.0MB. Free memory was 103.6MB in the beginning and 100.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:03:48,477 INFO L158 Benchmark]: Boogie Preprocessor took 41.34ms. Allocated memory is still 172.0MB. Free memory was 100.8MB in the beginning and 99.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:03:48,478 INFO L158 Benchmark]: RCFGBuilder took 530.53ms. Allocated memory is still 172.0MB. Free memory was 99.4MB in the beginning and 129.6MB in the end (delta: -30.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-06 22:03:48,478 INFO L158 Benchmark]: TraceAbstraction took 8430.20ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 128.8MB in the beginning and 166.9MB in the end (delta: -38.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:03:48,479 INFO L158 Benchmark]: Witness Printer took 77.55ms. Allocated memory is still 207.6MB. Free memory was 166.9MB in the beginning and 163.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:03:48,483 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 125.8MB. Free memory was 97.7MB in the beginning and 97.6MB in the end (delta: 74.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 976.34ms. Allocated memory is still 172.0MB. Free memory was 139.9MB in the beginning and 103.6MB in the end (delta: 36.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.05ms. Allocated memory is still 172.0MB. Free memory was 103.6MB in the beginning and 100.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.34ms. Allocated memory is still 172.0MB. Free memory was 100.8MB in the beginning and 99.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 530.53ms. Allocated memory is still 172.0MB. Free memory was 99.4MB in the beginning and 129.6MB in the end (delta: -30.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8430.20ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 128.8MB in the beginning and 166.9MB in the end (delta: -38.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 77.55ms. Allocated memory is still 207.6MB. Free memory was 166.9MB in the beginning and 163.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 72 PlacesBefore, 18 PlacesAfterwards, 68 TransitionsBefore, 14 TransitionsAfterwards, 1092 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 62 TotalNumberOfCompositions, 1539 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1046, independent: 946, independent conditional: 0, independent unconditional: 946, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 598, independent: 578, independent conditional: 0, independent unconditional: 578, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1046, independent: 368, independent conditional: 0, independent unconditional: 368, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 598, unknown conditional: 0, unknown unconditional: 598] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 23, Positive conditional cache size: 0, Positive unconditional cache size: 23, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 93 locations, 7 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: 8.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 657 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 459 mSDsluCounter, 434 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 389 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1206 IncrementalHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 45 mSDtfsCounter, 1206 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=3, InterpolantAutomatonStates: 45, 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, 2.8s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 477 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:03:48,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6934e484-9db6-46a3-a087-1ee97bd6bf77/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE