./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c5d8219-451c-45d9-90a6-196c0fa9ce1f/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c5d8219-451c-45d9-90a6-196c0fa9ce1f/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_0c5d8219-451c-45d9-90a6-196c0fa9ce1f/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c5d8219-451c-45d9-90a6-196c0fa9ce1f/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c5d8219-451c-45d9-90a6-196c0fa9ce1f/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_0c5d8219-451c-45d9-90a6-196c0fa9ce1f/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 a6cef8f51d4b8dff634e07872101a48e47fb1f63ea17b45a5f4511bf6a262ddb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:27:44,398 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:27:44,494 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c5d8219-451c-45d9-90a6-196c0fa9ce1f/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:27:44,504 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:27:44,504 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:27:44,549 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:27:44,550 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:27:44,550 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:27:44,551 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:27:44,556 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:27:44,557 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:27:44,558 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:27:44,558 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:27:44,560 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:27:44,561 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:27:44,561 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:27:44,562 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:27:44,562 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:27:44,562 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:27:44,563 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:27:44,563 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:27:44,564 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:27:44,564 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:27:44,565 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:27:44,565 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:27:44,565 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:27:44,566 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:27:44,567 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:27:44,567 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:27:44,567 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:27:44,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:27:44,569 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:27:44,569 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:27:44,584 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:27:44,584 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:27:44,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:27:44,585 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:27:44,585 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:27:44,585 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:27:44,585 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:27:44,585 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:27:44,586 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_0c5d8219-451c-45d9-90a6-196c0fa9ce1f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c5d8219-451c-45d9-90a6-196c0fa9ce1f/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6cef8f51d4b8dff634e07872101a48e47fb1f63ea17b45a5f4511bf6a262ddb [2023-11-12 02:27:44,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:27:44,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:27:44,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:27:44,897 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:27:44,898 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:27:44,900 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c5d8219-451c-45d9-90a6-196c0fa9ce1f/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c [2023-11-12 02:27:47,951 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:27:48,236 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:27:48,237 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c5d8219-451c-45d9-90a6-196c0fa9ce1f/sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c [2023-11-12 02:27:48,249 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c5d8219-451c-45d9-90a6-196c0fa9ce1f/bin/uautomizer-verify-uTZkv6EMXl/data/09143f30e/fd9f78ceceed42f2b8aefe76100fede2/FLAG96971cadd [2023-11-12 02:27:48,267 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c5d8219-451c-45d9-90a6-196c0fa9ce1f/bin/uautomizer-verify-uTZkv6EMXl/data/09143f30e/fd9f78ceceed42f2b8aefe76100fede2 [2023-11-12 02:27:48,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:27:48,277 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:27:48,280 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:27:48,280 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:27:48,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:27:48,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:27:48" (1/1) ... [2023-11-12 02:27:48,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1008239a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:48, skipping insertion in model container [2023-11-12 02:27:48,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:27:48" (1/1) ... [2023-11-12 02:27:48,317 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:27:48,535 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:27:48,547 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:27:48,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:27:48,602 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:27:48,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:48 WrapperNode [2023-11-12 02:27:48,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:27:48,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:27:48,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:27:48,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:27:48,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:48" (1/1) ... [2023-11-12 02:27:48,622 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:48" (1/1) ... [2023-11-12 02:27:48,652 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 163 [2023-11-12 02:27:48,652 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:27:48,653 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:27:48,653 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:27:48,654 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:27:48,667 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:48" (1/1) ... [2023-11-12 02:27:48,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:48" (1/1) ... [2023-11-12 02:27:48,671 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:48" (1/1) ... [2023-11-12 02:27:48,671 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:48" (1/1) ... [2023-11-12 02:27:48,679 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:48" (1/1) ... [2023-11-12 02:27:48,681 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:48" (1/1) ... [2023-11-12 02:27:48,684 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:48" (1/1) ... [2023-11-12 02:27:48,685 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:48" (1/1) ... [2023-11-12 02:27:48,689 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:27:48,690 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:27:48,690 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:27:48,690 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:27:48,691 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:48" (1/1) ... [2023-11-12 02:27:48,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:27:48,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c5d8219-451c-45d9-90a6-196c0fa9ce1f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:48,737 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c5d8219-451c-45d9-90a6-196c0fa9ce1f/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:27:48,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c5d8219-451c-45d9-90a6-196c0fa9ce1f/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:27:48,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:27:48,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 02:27:48,786 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 02:27:48,787 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 02:27:48,787 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 02:27:48,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:27:48,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:27:48,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:27:48,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:27:48,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:27:48,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:27:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:27:48,790 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 02:27:48,956 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:27:48,964 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:27:49,529 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:27:49,546 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:27:49,546 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:27:49,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:27:49 BoogieIcfgContainer [2023-11-12 02:27:49,549 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:27:49,552 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:27:49,552 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:27:49,556 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:27:49,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:27:48" (1/3) ... [2023-11-12 02:27:49,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756e62ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:27:49, skipping insertion in model container [2023-11-12 02:27:49,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:48" (2/3) ... [2023-11-12 02:27:49,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756e62ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:27:49, skipping insertion in model container [2023-11-12 02:27:49,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:27:49" (3/3) ... [2023-11-12 02:27:49,562 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2023-11-12 02:27:49,572 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:27:49,585 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:27:49,585 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-12 02:27:49,586 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:27:49,766 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-12 02:27:49,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 212 places, 222 transitions, 458 flow [2023-11-12 02:27:49,935 INFO L124 PetriNetUnfolderBase]: 17/220 cut-off events. [2023-11-12 02:27:49,935 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:27:49,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 220 events. 17/220 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 465 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 147. Up to 2 conditions per place. [2023-11-12 02:27:49,951 INFO L82 GeneralOperation]: Start removeDead. Operand has 212 places, 222 transitions, 458 flow [2023-11-12 02:27:49,959 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 175 places, 182 transitions, 373 flow [2023-11-12 02:27:49,963 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:27:49,974 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 182 transitions, 373 flow [2023-11-12 02:27:49,978 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 182 transitions, 373 flow [2023-11-12 02:27:49,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 182 transitions, 373 flow [2023-11-12 02:27:50,032 INFO L124 PetriNetUnfolderBase]: 14/182 cut-off events. [2023-11-12 02:27:50,033 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 02:27:50,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 182 events. 14/182 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 399 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 147. Up to 2 conditions per place. [2023-11-12 02:27:50,046 INFO L119 LiptonReduction]: Number of co-enabled transitions 11288 [2023-11-12 02:28:03,342 INFO L134 LiptonReduction]: Checked pairs total: 10943 [2023-11-12 02:28:03,343 INFO L136 LiptonReduction]: Total number of compositions: 252 [2023-11-12 02:28:03,371 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:28:03,381 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;@7cecdf7c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:28:03,381 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-11-12 02:28:03,385 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:28:03,385 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-12 02:28:03,386 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:28:03,386 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:03,387 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-12 02:28:03,388 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-12 02:28:03,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:03,393 INFO L85 PathProgramCache]: Analyzing trace with hash 909948, now seen corresponding path program 1 times [2023-11-12 02:28:03,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:03,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672604678] [2023-11-12 02:28:03,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:03,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:03,630 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 02:28:03,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:03,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672604678] [2023-11-12 02:28:03,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672604678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:03,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:03,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:28:03,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333881520] [2023-11-12 02:28:03,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:03,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:28:03,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:03,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:28:03,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:28:03,689 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 474 [2023-11-12 02:28:03,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 51 flow. Second operand has 2 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 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 02:28:03,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:03,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 474 [2023-11-12 02:28:03,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:03,828 INFO L124 PetriNetUnfolderBase]: 105/202 cut-off events. [2023-11-12 02:28:03,829 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2023-11-12 02:28:03,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 202 events. 105/202 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 804 event pairs, 105 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 368. Up to 203 conditions per place. [2023-11-12 02:28:03,835 INFO L140 encePairwiseOnDemand]: 470/474 looper letters, 17 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2023-11-12 02:28:03,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 17 transitions, 77 flow [2023-11-12 02:28:03,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:28:03,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:28:03,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 441 transitions. [2023-11-12 02:28:03,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4651898734177215 [2023-11-12 02:28:03,865 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 441 transitions. [2023-11-12 02:28:03,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 441 transitions. [2023-11-12 02:28:03,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:03,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 441 transitions. [2023-11-12 02:28:03,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 220.5) internal successors, (441), 2 states have internal predecessors, (441), 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 02:28:03,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 474.0) internal successors, (1422), 3 states have internal predecessors, (1422), 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 02:28:03,889 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 474.0) internal successors, (1422), 3 states have internal predecessors, (1422), 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 02:28:03,891 INFO L175 Difference]: Start difference. First operand has 28 places, 21 transitions, 51 flow. Second operand 2 states and 441 transitions. [2023-11-12 02:28:03,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 17 transitions, 77 flow [2023-11-12 02:28:03,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 72 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-12 02:28:03,898 INFO L231 Difference]: Finished difference. Result has 22 places, 17 transitions, 38 flow [2023-11-12 02:28:03,900 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=38, PETRI_PLACES=22, PETRI_TRANSITIONS=17} [2023-11-12 02:28:03,905 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -6 predicate places. [2023-11-12 02:28:03,906 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 17 transitions, 38 flow [2023-11-12 02:28:03,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 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 02:28:03,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:03,907 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-12 02:28:03,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:28:03,908 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-12 02:28:03,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:03,909 INFO L85 PathProgramCache]: Analyzing trace with hash 909977, now seen corresponding path program 1 times [2023-11-12 02:28:03,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:03,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190530936] [2023-11-12 02:28:03,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:03,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:04,134 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 02:28:04,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:04,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190530936] [2023-11-12 02:28:04,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190530936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:04,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:04,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:28:04,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958515668] [2023-11-12 02:28:04,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:04,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:28:04,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:04,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:28:04,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:28:04,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 474 [2023-11-12 02:28:04,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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 02:28:04,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:04,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 474 [2023-11-12 02:28:04,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:04,278 INFO L124 PetriNetUnfolderBase]: 72/143 cut-off events. [2023-11-12 02:28:04,279 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-12 02:28:04,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 143 events. 72/143 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 514 event pairs, 72 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 297. Up to 143 conditions per place. [2023-11-12 02:28:04,283 INFO L140 encePairwiseOnDemand]: 471/474 looper letters, 14 selfloop transitions, 1 changer transitions 0/15 dead transitions. [2023-11-12 02:28:04,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 15 transitions, 64 flow [2023-11-12 02:28:04,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:28:04,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:28:04,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 641 transitions. [2023-11-12 02:28:04,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4507735583684951 [2023-11-12 02:28:04,288 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 641 transitions. [2023-11-12 02:28:04,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 641 transitions. [2023-11-12 02:28:04,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:04,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 641 transitions. [2023-11-12 02:28:04,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 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 02:28:04,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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 02:28:04,300 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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 02:28:04,301 INFO L175 Difference]: Start difference. First operand has 22 places, 17 transitions, 38 flow. Second operand 3 states and 641 transitions. [2023-11-12 02:28:04,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 15 transitions, 64 flow [2023-11-12 02:28:04,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 15 transitions, 64 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:28:04,306 INFO L231 Difference]: Finished difference. Result has 22 places, 15 transitions, 36 flow [2023-11-12 02:28:04,308 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=22, PETRI_TRANSITIONS=15} [2023-11-12 02:28:04,309 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -6 predicate places. [2023-11-12 02:28:04,310 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 15 transitions, 36 flow [2023-11-12 02:28:04,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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 02:28:04,312 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:04,312 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-12 02:28:04,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:28:04,320 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-12 02:28:04,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:04,321 INFO L85 PathProgramCache]: Analyzing trace with hash 909946, now seen corresponding path program 1 times [2023-11-12 02:28:04,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:04,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29808936] [2023-11-12 02:28:04,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:04,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:04,387 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 02:28:04,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:04,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29808936] [2023-11-12 02:28:04,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29808936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:04,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:04,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:28:04,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322227247] [2023-11-12 02:28:04,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:04,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:28:04,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:04,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:28:04,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:28:04,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 474 [2023-11-12 02:28:04,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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 02:28:04,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:04,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 474 [2023-11-12 02:28:04,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:04,482 INFO L124 PetriNetUnfolderBase]: 45/94 cut-off events. [2023-11-12 02:28:04,483 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:28:04,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 94 events. 45/94 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 288 event pairs, 45 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 198. Up to 94 conditions per place. [2023-11-12 02:28:04,484 INFO L140 encePairwiseOnDemand]: 471/474 looper letters, 12 selfloop transitions, 1 changer transitions 0/13 dead transitions. [2023-11-12 02:28:04,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 13 transitions, 58 flow [2023-11-12 02:28:04,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:28:04,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:28:04,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 639 transitions. [2023-11-12 02:28:04,488 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44936708860759494 [2023-11-12 02:28:04,489 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 639 transitions. [2023-11-12 02:28:04,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 639 transitions. [2023-11-12 02:28:04,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:04,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 639 transitions. [2023-11-12 02:28:04,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 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 02:28:04,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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 02:28:04,500 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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 02:28:04,500 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 36 flow. Second operand 3 states and 639 transitions. [2023-11-12 02:28:04,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 13 transitions, 58 flow [2023-11-12 02:28:04,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 13 transitions, 57 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:28:04,502 INFO L231 Difference]: Finished difference. Result has 21 places, 13 transitions, 33 flow [2023-11-12 02:28:04,502 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=33, PETRI_PLACES=21, PETRI_TRANSITIONS=13} [2023-11-12 02:28:04,504 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -7 predicate places. [2023-11-12 02:28:04,505 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 13 transitions, 33 flow [2023-11-12 02:28:04,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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 02:28:04,506 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:04,506 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-12 02:28:04,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:28:04,512 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-12 02:28:04,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:04,513 INFO L85 PathProgramCache]: Analyzing trace with hash 909975, now seen corresponding path program 1 times [2023-11-12 02:28:04,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:04,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178686405] [2023-11-12 02:28:04,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:04,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:04,647 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 02:28:04,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:04,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178686405] [2023-11-12 02:28:04,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178686405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:04,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:04,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:28:04,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501676776] [2023-11-12 02:28:04,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:04,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:28:04,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:04,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:28:04,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:28:04,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 474 [2023-11-12 02:28:04,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 13 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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 02:28:04,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:04,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 474 [2023-11-12 02:28:04,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:04,721 INFO L124 PetriNetUnfolderBase]: 24/55 cut-off events. [2023-11-12 02:28:04,721 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:28:04,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 55 events. 24/55 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 128 event pairs, 24 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 119. Up to 55 conditions per place. [2023-11-12 02:28:04,722 INFO L140 encePairwiseOnDemand]: 471/474 looper letters, 10 selfloop transitions, 1 changer transitions 0/11 dead transitions. [2023-11-12 02:28:04,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 11 transitions, 51 flow [2023-11-12 02:28:04,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:28:04,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:28:04,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 637 transitions. [2023-11-12 02:28:04,726 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4479606188466948 [2023-11-12 02:28:04,726 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 637 transitions. [2023-11-12 02:28:04,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 637 transitions. [2023-11-12 02:28:04,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:04,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 637 transitions. [2023-11-12 02:28:04,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 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 02:28:04,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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 02:28:04,736 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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 02:28:04,736 INFO L175 Difference]: Start difference. First operand has 21 places, 13 transitions, 33 flow. Second operand 3 states and 637 transitions. [2023-11-12 02:28:04,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 11 transitions, 51 flow [2023-11-12 02:28:04,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 11 transitions, 50 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:28:04,737 INFO L231 Difference]: Finished difference. Result has 20 places, 11 transitions, 30 flow [2023-11-12 02:28:04,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=30, PETRI_PLACES=20, PETRI_TRANSITIONS=11} [2023-11-12 02:28:04,739 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -8 predicate places. [2023-11-12 02:28:04,739 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 11 transitions, 30 flow [2023-11-12 02:28:04,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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 02:28:04,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:04,740 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-12 02:28:04,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:28:04,741 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-12 02:28:04,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:04,741 INFO L85 PathProgramCache]: Analyzing trace with hash 909976, now seen corresponding path program 1 times [2023-11-12 02:28:04,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:04,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802942000] [2023-11-12 02:28:04,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:04,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:04,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:04,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:04,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802942000] [2023-11-12 02:28:04,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802942000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:04,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:04,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:28:04,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337806496] [2023-11-12 02:28:04,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:04,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:28:04,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:04,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:28:04,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:28:04,806 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 474 [2023-11-12 02:28:04,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 11 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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 02:28:04,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:04,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 474 [2023-11-12 02:28:04,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:04,843 INFO L124 PetriNetUnfolderBase]: 9/26 cut-off events. [2023-11-12 02:28:04,844 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 02:28:04,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 26 events. 9/26 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 9 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 60. Up to 26 conditions per place. [2023-11-12 02:28:04,844 INFO L140 encePairwiseOnDemand]: 471/474 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions. [2023-11-12 02:28:04,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 9 transitions, 44 flow [2023-11-12 02:28:04,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:28:04,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:28:04,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 635 transitions. [2023-11-12 02:28:04,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44655414908579466 [2023-11-12 02:28:04,849 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 635 transitions. [2023-11-12 02:28:04,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 635 transitions. [2023-11-12 02:28:04,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:04,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 635 transitions. [2023-11-12 02:28:04,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 211.66666666666666) internal successors, (635), 3 states have internal predecessors, (635), 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 02:28:04,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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 02:28:04,859 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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 02:28:04,859 INFO L175 Difference]: Start difference. First operand has 20 places, 11 transitions, 30 flow. Second operand 3 states and 635 transitions. [2023-11-12 02:28:04,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 9 transitions, 44 flow [2023-11-12 02:28:04,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 9 transitions, 43 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:28:04,860 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2023-11-12 02:28:04,861 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=25, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2023-11-12 02:28:04,862 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -9 predicate places. [2023-11-12 02:28:04,862 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2023-11-12 02:28:04,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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 02:28:04,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2023-11-12 02:28:04,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2023-11-12 02:28:04,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2023-11-12 02:28:04,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2023-11-12 02:28:04,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2023-11-12 02:28:04,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2023-11-12 02:28:04,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2023-11-12 02:28:04,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2023-11-12 02:28:04,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2023-11-12 02:28:04,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2023-11-12 02:28:04,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2023-11-12 02:28:04,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2023-11-12 02:28:04,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2023-11-12 02:28:04,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2023-11-12 02:28:04,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2023-11-12 02:28:04,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2023-11-12 02:28:04,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2023-11-12 02:28:04,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2023-11-12 02:28:04,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2023-11-12 02:28:04,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2023-11-12 02:28:04,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2023-11-12 02:28:04,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2023-11-12 02:28:04,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2023-11-12 02:28:04,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2023-11-12 02:28:04,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2023-11-12 02:28:04,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2023-11-12 02:28:04,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:28:04,875 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 02:28:04,881 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:28:04,881 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:28:04,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:28:04 BasicIcfg [2023-11-12 02:28:04,906 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:28:04,907 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:28:04,907 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:28:04,908 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:28:04,908 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:27:49" (3/4) ... [2023-11-12 02:28:04,910 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:28:04,915 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-12 02:28:04,915 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-12 02:28:04,921 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-12 02:28:04,921 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 02:28:04,922 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:28:04,922 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:28:05,032 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c5d8219-451c-45d9-90a6-196c0fa9ce1f/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:28:05,034 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c5d8219-451c-45d9-90a6-196c0fa9ce1f/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:28:05,034 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:28:05,035 INFO L158 Benchmark]: Toolchain (without parser) took 16758.62ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 76.4MB in the beginning and 131.6MB in the end (delta: -55.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:28:05,036 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory was 86.6MB in the beginning and 86.5MB in the end (delta: 72.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:28:05,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.19ms. Allocated memory is still 115.3MB. Free memory was 76.1MB in the beginning and 64.8MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:28:05,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.59ms. Allocated memory is still 115.3MB. Free memory was 64.6MB 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 02:28:05,037 INFO L158 Benchmark]: Boogie Preprocessor took 35.97ms. Allocated memory is still 115.3MB. Free memory was 62.6MB in the beginning and 61.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:28:05,037 INFO L158 Benchmark]: RCFGBuilder took 858.86ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 61.0MB in the beginning and 137.4MB in the end (delta: -76.4MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2023-11-12 02:28:05,038 INFO L158 Benchmark]: TraceAbstraction took 15354.73ms. Allocated memory is still 167.8MB. Free memory was 136.3MB in the beginning and 135.8MB in the end (delta: 571.9kB). Peak memory consumption was 96.7MB. Max. memory is 16.1GB. [2023-11-12 02:28:05,038 INFO L158 Benchmark]: Witness Printer took 127.68ms. Allocated memory is still 167.8MB. Free memory was 135.8MB in the beginning and 131.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:28:05,042 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory was 86.6MB in the beginning and 86.5MB in the end (delta: 72.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.19ms. Allocated memory is still 115.3MB. Free memory was 76.1MB in the beginning and 64.8MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.59ms. Allocated memory is still 115.3MB. Free memory was 64.6MB in the beginning and 62.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.97ms. Allocated memory is still 115.3MB. Free memory was 62.6MB in the beginning and 61.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 858.86ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 61.0MB in the beginning and 137.4MB in the end (delta: -76.4MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * TraceAbstraction took 15354.73ms. Allocated memory is still 167.8MB. Free memory was 136.3MB in the beginning and 135.8MB in the end (delta: 571.9kB). Peak memory consumption was 96.7MB. Max. memory is 16.1GB. * Witness Printer took 127.68ms. Allocated memory is still 167.8MB. Free memory was 135.8MB in the beginning and 131.6MB 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: 13.4s, 175 PlacesBefore, 28 PlacesAfterwards, 182 TransitionsBefore, 21 TransitionsAfterwards, 11288 CoEnabledTransitionPairs, 8 FixpointIterations, 32 TrivialSequentialCompositions, 148 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 58 ConcurrentYvCompositions, 14 ChoiceCompositions, 252 TotalNumberOfCompositions, 10943 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10943, independent: 10943, independent conditional: 0, independent unconditional: 10943, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7009, independent: 7009, independent conditional: 0, independent unconditional: 7009, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10943, independent: 3934, independent conditional: 0, independent unconditional: 3934, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 7009, unknown conditional: 0, unknown unconditional: 7009] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: 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, 332 locations, 26 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: 15.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 122 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 119 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 18 mSDtfsCounter, 119 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 0.4s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 02:28:05,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c5d8219-451c-45d9-90a6-196c0fa9ce1f/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