./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix022_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_8649bf3e-4840-4697-bc05-90771dbcbed9/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8649bf3e-4840-4697-bc05-90771dbcbed9/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8649bf3e-4840-4697-bc05-90771dbcbed9/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8649bf3e-4840-4697-bc05-90771dbcbed9/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix022_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8649bf3e-4840-4697-bc05-90771dbcbed9/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8649bf3e-4840-4697-bc05-90771dbcbed9/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c9c6cc212d45f96c9e6587b0ee0d7644c3fabb2c198a03ef385d6df2e7b46689 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:26:04,383 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:26:04,465 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8649bf3e-4840-4697-bc05-90771dbcbed9/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:26:04,470 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:26:04,471 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:26:04,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:26:04,501 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:26:04,502 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:26:04,503 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:26:04,503 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:26:04,504 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:26:04,505 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:26:04,506 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:26:04,506 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:26:04,507 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:26:04,508 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:26:04,508 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:26:04,509 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:26:04,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:26:04,510 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:26:04,511 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:26:04,512 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:26:04,512 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:26:04,513 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:26:04,514 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:26:04,514 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:26:04,515 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:26:04,516 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:26:04,516 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:26:04,517 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:26:04,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:26:04,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:26:04,519 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:26:04,520 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:26:04,520 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:26:04,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:26:04,521 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:26:04,522 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:26:04,523 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:26:04,523 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:26:04,524 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:26:04,524 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_8649bf3e-4840-4697-bc05-90771dbcbed9/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8649bf3e-4840-4697-bc05-90771dbcbed9/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9c6cc212d45f96c9e6587b0ee0d7644c3fabb2c198a03ef385d6df2e7b46689 [2023-11-12 02:26:04,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:26:04,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:26:04,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:26:04,873 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:26:04,874 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:26:04,876 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8649bf3e-4840-4697-bc05-90771dbcbed9/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-wmm/mix022_tso.i [2023-11-12 02:26:08,248 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:26:08,501 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:26:08,501 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8649bf3e-4840-4697-bc05-90771dbcbed9/sv-benchmarks/c/pthread-wmm/mix022_tso.i [2023-11-12 02:26:08,519 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8649bf3e-4840-4697-bc05-90771dbcbed9/bin/uautomizer-verify-uTZkv6EMXl/data/2fd939207/86a5bf7117e44e3cb10e1dc6844c0799/FLAG33fe1ef13 [2023-11-12 02:26:08,538 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8649bf3e-4840-4697-bc05-90771dbcbed9/bin/uautomizer-verify-uTZkv6EMXl/data/2fd939207/86a5bf7117e44e3cb10e1dc6844c0799 [2023-11-12 02:26:08,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:26:08,549 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:26:08,551 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:26:08,552 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:26:08,557 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:26:08,560 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:26:08" (1/1) ... [2023-11-12 02:26:08,561 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@307035f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:08, skipping insertion in model container [2023-11-12 02:26:08,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:26:08" (1/1) ... [2023-11-12 02:26:08,638 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:26:09,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:26:09,138 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:26:09,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:26:09,273 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:26:09,274 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:26:09,280 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:26:09,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:09 WrapperNode [2023-11-12 02:26:09,281 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:26:09,282 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:26:09,282 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:26:09,282 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:26:09,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:09" (1/1) ... [2023-11-12 02:26:09,308 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:09" (1/1) ... [2023-11-12 02:26:09,346 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 157 [2023-11-12 02:26:09,347 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:26:09,347 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:26:09,348 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:26:09,348 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:26:09,357 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:09" (1/1) ... [2023-11-12 02:26:09,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:09" (1/1) ... [2023-11-12 02:26:09,362 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:09" (1/1) ... [2023-11-12 02:26:09,363 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:09" (1/1) ... [2023-11-12 02:26:09,373 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:09" (1/1) ... [2023-11-12 02:26:09,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:09" (1/1) ... [2023-11-12 02:26:09,379 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:09" (1/1) ... [2023-11-12 02:26:09,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:09" (1/1) ... [2023-11-12 02:26:09,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:26:09,386 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:26:09,386 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:26:09,386 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:26:09,387 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:09" (1/1) ... [2023-11-12 02:26:09,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:26:09,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8649bf3e-4840-4697-bc05-90771dbcbed9/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:09,442 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8649bf3e-4840-4697-bc05-90771dbcbed9/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:09,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8649bf3e-4840-4697-bc05-90771dbcbed9/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:26:09,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:26:09,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:26:09,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:26:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:26:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:26:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 02:26:09,490 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 02:26:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 02:26:09,490 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 02:26:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:26:09,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:26:09,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:26:09,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:26:09,493 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:26:09,671 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:26:09,673 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:26:10,018 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:26:10,218 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:26:10,218 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:26:10,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:10 BoogieIcfgContainer [2023-11-12 02:26:10,221 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:26:10,223 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:26:10,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:26:10,227 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:26:10,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:26:08" (1/3) ... [2023-11-12 02:26:10,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637b8b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:26:10, skipping insertion in model container [2023-11-12 02:26:10,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:09" (2/3) ... [2023-11-12 02:26:10,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637b8b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:26:10, skipping insertion in model container [2023-11-12 02:26:10,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:10" (3/3) ... [2023-11-12 02:26:10,230 INFO L112 eAbstractionObserver]: Analyzing ICFG mix022_tso.i [2023-11-12 02:26:10,238 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:26:10,249 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:26:10,249 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-12 02:26:10,250 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:26:10,300 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:26:10,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 99 transitions, 206 flow [2023-11-12 02:26:10,416 INFO L124 PetriNetUnfolderBase]: 3/97 cut-off events. [2023-11-12 02:26:10,417 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:26:10,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 97 events. 3/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2023-11-12 02:26:10,423 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 99 transitions, 206 flow [2023-11-12 02:26:10,430 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 97 transitions, 200 flow [2023-11-12 02:26:10,434 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:26:10,451 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 97 transitions, 200 flow [2023-11-12 02:26:10,460 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 97 transitions, 200 flow [2023-11-12 02:26:10,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 97 transitions, 200 flow [2023-11-12 02:26:10,501 INFO L124 PetriNetUnfolderBase]: 3/97 cut-off events. [2023-11-12 02:26:10,501 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:26:10,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 97 events. 3/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2023-11-12 02:26:10,509 INFO L119 LiptonReduction]: Number of co-enabled transitions 1636 [2023-11-12 02:26:15,426 INFO L134 LiptonReduction]: Checked pairs total: 4552 [2023-11-12 02:26:15,426 INFO L136 LiptonReduction]: Total number of compositions: 87 [2023-11-12 02:26:15,443 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:26:15,451 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@38022ffc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:26:15,451 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-12 02:26:15,459 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:26:15,459 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-12 02:26:15,459 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:26:15,459 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:15,460 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:26:15,461 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:26:15,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:15,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1911846926, now seen corresponding path program 1 times [2023-11-12 02:26:15,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:15,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575904954] [2023-11-12 02:26:15,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:15,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:15,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:15,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:15,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575904954] [2023-11-12 02:26:15,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575904954] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:15,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:15,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:26:15,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843783485] [2023-11-12 02:26:15,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:15,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:26:15,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:16,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:26:16,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:26:16,027 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 186 [2023-11-12 02:26:16,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 20 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2023-11-12 02:26:16,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:16,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 186 [2023-11-12 02:26:16,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:16,250 INFO L124 PetriNetUnfolderBase]: 123/236 cut-off events. [2023-11-12 02:26:16,250 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:26:16,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 236 events. 123/236 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 865 event pairs, 61 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 468. Up to 116 conditions per place. [2023-11-12 02:26:16,255 INFO L140 encePairwiseOnDemand]: 179/186 looper letters, 25 selfloop transitions, 3 changer transitions 2/32 dead transitions. [2023-11-12 02:26:16,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 32 transitions, 133 flow [2023-11-12 02:26:16,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:26:16,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:26:16,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 274 transitions. [2023-11-12 02:26:16,271 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4910394265232975 [2023-11-12 02:26:16,272 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 274 transitions. [2023-11-12 02:26:16,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 274 transitions. [2023-11-12 02:26:16,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:16,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 274 transitions. [2023-11-12 02:26:16,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2023-11-12 02:26:16,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 186.0) internal successors, (744), 4 states have internal predecessors, (744), 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) [2023-11-12 02:26:16,287 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 186.0) internal successors, (744), 4 states have internal predecessors, (744), 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) [2023-11-12 02:26:16,289 INFO L175 Difference]: Start difference. First operand has 27 places, 20 transitions, 46 flow. Second operand 3 states and 274 transitions. [2023-11-12 02:26:16,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 32 transitions, 133 flow [2023-11-12 02:26:16,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 32 transitions, 130 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:26:16,295 INFO L231 Difference]: Finished difference. Result has 28 places, 20 transitions, 61 flow [2023-11-12 02:26:16,297 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=28, PETRI_TRANSITIONS=20} [2023-11-12 02:26:16,302 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2023-11-12 02:26:16,302 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 20 transitions, 61 flow [2023-11-12 02:26:16,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2023-11-12 02:26:16,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:16,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:16,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:26:16,303 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:26:16,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:16,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1873344826, now seen corresponding path program 1 times [2023-11-12 02:26:16,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:16,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875934223] [2023-11-12 02:26:16,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:16,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:16,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:16,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:16,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875934223] [2023-11-12 02:26:16,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875934223] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:16,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:16,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:26:16,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193393104] [2023-11-12 02:26:16,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:16,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:26:16,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:16,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:26:16,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:26:16,549 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 186 [2023-11-12 02:26:16,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 20 transitions, 61 flow. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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) [2023-11-12 02:26:16,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:16,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 186 [2023-11-12 02:26:16,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:16,710 INFO L124 PetriNetUnfolderBase]: 110/211 cut-off events. [2023-11-12 02:26:16,710 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2023-11-12 02:26:16,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 211 events. 110/211 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 758 event pairs, 61 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 486. Up to 116 conditions per place. [2023-11-12 02:26:16,719 INFO L140 encePairwiseOnDemand]: 181/186 looper letters, 23 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2023-11-12 02:26:16,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 28 transitions, 127 flow [2023-11-12 02:26:16,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:26:16,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:26:16,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 348 transitions. [2023-11-12 02:26:16,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46774193548387094 [2023-11-12 02:26:16,729 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 348 transitions. [2023-11-12 02:26:16,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 348 transitions. [2023-11-12 02:26:16,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:16,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 348 transitions. [2023-11-12 02:26:16,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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) [2023-11-12 02:26:16,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 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) [2023-11-12 02:26:16,744 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 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) [2023-11-12 02:26:16,744 INFO L175 Difference]: Start difference. First operand has 28 places, 20 transitions, 61 flow. Second operand 4 states and 348 transitions. [2023-11-12 02:26:16,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 28 transitions, 127 flow [2023-11-12 02:26:16,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:26:16,747 INFO L231 Difference]: Finished difference. Result has 28 places, 18 transitions, 56 flow [2023-11-12 02:26:16,747 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=50, 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=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=56, PETRI_PLACES=28, PETRI_TRANSITIONS=18} [2023-11-12 02:26:16,753 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2023-11-12 02:26:16,754 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 56 flow [2023-11-12 02:26:16,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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) [2023-11-12 02:26:16,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:16,760 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:16,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:26:16,760 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:26:16,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:16,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1873344825, now seen corresponding path program 1 times [2023-11-12 02:26:16,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:16,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318325138] [2023-11-12 02:26:16,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:16,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:16,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:16,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:16,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318325138] [2023-11-12 02:26:16,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318325138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:16,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:16,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:26:16,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897378786] [2023-11-12 02:26:16,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:16,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:26:16,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:16,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:26:16,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:26:16,923 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 186 [2023-11-12 02:26:16,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 18 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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) [2023-11-12 02:26:16,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:16,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 186 [2023-11-12 02:26:16,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:17,042 INFO L124 PetriNetUnfolderBase]: 104/197 cut-off events. [2023-11-12 02:26:17,042 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2023-11-12 02:26:17,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 197 events. 104/197 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 712 event pairs, 61 based on Foata normal form. 8/201 useless extension candidates. Maximal degree in co-relation 450. Up to 116 conditions per place. [2023-11-12 02:26:17,043 INFO L140 encePairwiseOnDemand]: 181/186 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2023-11-12 02:26:17,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 26 transitions, 118 flow [2023-11-12 02:26:17,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:26:17,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:26:17,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 346 transitions. [2023-11-12 02:26:17,046 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4650537634408602 [2023-11-12 02:26:17,046 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 346 transitions. [2023-11-12 02:26:17,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 346 transitions. [2023-11-12 02:26:17,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:17,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 346 transitions. [2023-11-12 02:26:17,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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) [2023-11-12 02:26:17,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 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) [2023-11-12 02:26:17,051 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 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) [2023-11-12 02:26:17,051 INFO L175 Difference]: Start difference. First operand has 28 places, 18 transitions, 56 flow. Second operand 4 states and 346 transitions. [2023-11-12 02:26:17,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 26 transitions, 118 flow [2023-11-12 02:26:17,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 26 transitions, 111 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-12 02:26:17,052 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2023-11-12 02:26:17,053 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2023-11-12 02:26:17,053 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -1 predicate places. [2023-11-12 02:26:17,054 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2023-11-12 02:26:17,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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) [2023-11-12 02:26:17,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-11-12 02:26:17,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-11-12 02:26:17,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-11-12 02:26:17,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-11-12 02:26:17,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-11-12 02:26:17,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-11-12 02:26:17,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-11-12 02:26:17,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-11-12 02:26:17,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-11-12 02:26:17,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-11-12 02:26:17,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:26:17,060 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-12 02:26:17,066 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:26:17,066 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:26:17,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:26:17 BasicIcfg [2023-11-12 02:26:17,070 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:26:17,071 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:26:17,071 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:26:17,071 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:26:17,072 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:10" (3/4) ... [2023-11-12 02:26:17,074 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:26:17,077 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-12 02:26:17,077 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-12 02:26:17,083 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2023-11-12 02:26:17,084 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-12 02:26:17,084 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 02:26:17,084 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:26:17,175 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8649bf3e-4840-4697-bc05-90771dbcbed9/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:26:17,176 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8649bf3e-4840-4697-bc05-90771dbcbed9/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:26:17,176 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:26:17,177 INFO L158 Benchmark]: Toolchain (without parser) took 8628.02ms. Allocated memory was 134.2MB in the beginning and 216.0MB in the end (delta: 81.8MB). Free memory was 91.6MB in the beginning and 92.0MB in the end (delta: -340.7kB). Peak memory consumption was 84.4MB. Max. memory is 16.1GB. [2023-11-12 02:26:17,177 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 134.2MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:26:17,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 729.90ms. Allocated memory is still 134.2MB. Free memory was 91.4MB in the beginning and 67.7MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-12 02:26:17,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.70ms. Allocated memory is still 134.2MB. Free memory was 67.7MB in the beginning and 64.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:26:17,179 INFO L158 Benchmark]: Boogie Preprocessor took 38.10ms. Allocated memory is still 134.2MB. Free memory was 64.7MB in the beginning and 62.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:26:17,179 INFO L158 Benchmark]: RCFGBuilder took 834.78ms. Allocated memory is still 134.2MB. Free memory was 62.6MB in the beginning and 68.6MB in the end (delta: -6.0MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2023-11-12 02:26:17,180 INFO L158 Benchmark]: TraceAbstraction took 6847.30ms. Allocated memory was 134.2MB in the beginning and 216.0MB in the end (delta: 81.8MB). Free memory was 68.1MB in the beginning and 96.2MB in the end (delta: -28.1MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2023-11-12 02:26:17,180 INFO L158 Benchmark]: Witness Printer took 105.09ms. Allocated memory is still 216.0MB. Free memory was 96.2MB in the beginning and 92.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:26:17,183 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 134.2MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 729.90ms. Allocated memory is still 134.2MB. Free memory was 91.4MB in the beginning and 67.7MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.70ms. Allocated memory is still 134.2MB. Free memory was 67.7MB in the beginning and 64.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.10ms. Allocated memory is still 134.2MB. Free memory was 64.7MB in the beginning and 62.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 834.78ms. Allocated memory is still 134.2MB. Free memory was 62.6MB in the beginning and 68.6MB in the end (delta: -6.0MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6847.30ms. Allocated memory was 134.2MB in the beginning and 216.0MB in the end (delta: 81.8MB). Free memory was 68.1MB in the beginning and 96.2MB in the end (delta: -28.1MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. * Witness Printer took 105.09ms. Allocated memory is still 216.0MB. Free memory was 96.2MB in the beginning and 92.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0s, 101 PlacesBefore, 27 PlacesAfterwards, 97 TransitionsBefore, 20 TransitionsAfterwards, 1636 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 3 ChoiceCompositions, 87 TotalNumberOfCompositions, 4552 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2195, independent: 2018, independent conditional: 0, independent unconditional: 2018, dependent: 177, dependent conditional: 0, dependent unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 937, independent: 892, independent conditional: 0, independent unconditional: 892, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2195, independent: 1126, independent conditional: 0, independent unconditional: 1126, dependent: 132, dependent conditional: 0, dependent unconditional: 132, unknown: 937, unknown conditional: 0, unknown unconditional: 937] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 751]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 751]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 120 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 60 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 8 mSDtfsCounter, 127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=1, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2023-11-12 02:26:17,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8649bf3e-4840-4697-bc05-90771dbcbed9/bin/uautomizer-verify-uTZkv6EMXl/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