./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ddd4991c5cc906892e1dead1f9e74e1cbe4e48f2d3e17b392b8efb86f500387 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:02:10,358 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:02:10,427 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 12:02:10,433 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:02:10,434 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:02:10,460 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:02:10,461 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:02:10,462 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:02:10,463 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:02:10,463 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:02:10,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:02:10,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:02:10,465 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:02:10,466 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:02:10,466 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:02:10,467 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:02:10,467 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:02:10,468 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:02:10,468 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:02:10,469 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:02:10,469 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:02:10,470 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:02:10,470 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:02:10,471 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:02:10,471 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:02:10,471 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:02:10,472 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:02:10,472 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:02:10,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:02:10,473 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:02:10,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:02:10,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:10,474 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:02:10,475 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:02:10,475 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:02:10,475 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:02:10,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:02:10,476 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:02:10,476 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:02:10,476 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:02:10,476 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:02:10,477 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:02:10,477 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_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ddd4991c5cc906892e1dead1f9e74e1cbe4e48f2d3e17b392b8efb86f500387 [2023-11-26 12:02:10,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:02:10,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:02:10,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:02:10,825 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:02:10,826 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:02:10,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2023-11-26 12:02:13,971 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:02:14,166 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:02:14,166 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2023-11-26 12:02:14,175 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/data/01eada29d/fc758ea3d87147629396e7e11207335b/FLAG5bb43a529 [2023-11-26 12:02:14,192 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/data/01eada29d/fc758ea3d87147629396e7e11207335b [2023-11-26 12:02:14,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:02:14,202 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:02:14,206 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:14,206 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:02:14,212 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:02:14,217 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:14" (1/1) ... [2023-11-26 12:02:14,219 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e1bd6fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:14, skipping insertion in model container [2023-11-26 12:02:14,219 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:14" (1/1) ... [2023-11-26 12:02:14,249 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:02:14,434 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c[2265,2278] [2023-11-26 12:02:14,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:14,461 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:02:14,485 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c[2265,2278] [2023-11-26 12:02:14,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:14,505 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:02:14,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:14 WrapperNode [2023-11-26 12:02:14,506 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:14,507 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:14,507 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:02:14,507 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:02:14,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:14" (1/1) ... [2023-11-26 12:02:14,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:14" (1/1) ... [2023-11-26 12:02:14,544 INFO L138 Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 122 [2023-11-26 12:02:14,545 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:14,546 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:02:14,546 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:02:14,546 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:02:14,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:14" (1/1) ... [2023-11-26 12:02:14,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:14" (1/1) ... [2023-11-26 12:02:14,558 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:14" (1/1) ... [2023-11-26 12:02:14,572 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 12:02:14,572 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:14" (1/1) ... [2023-11-26 12:02:14,573 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:14" (1/1) ... [2023-11-26 12:02:14,577 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:14" (1/1) ... [2023-11-26 12:02:14,579 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:14" (1/1) ... [2023-11-26 12:02:14,581 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:14" (1/1) ... [2023-11-26 12:02:14,582 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:14" (1/1) ... [2023-11-26 12:02:14,596 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:02:14,597 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:02:14,597 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:02:14,597 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:02:14,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:14" (1/1) ... [2023-11-26 12:02:14,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:14,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:14,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:14,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:02:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:02:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:02:14,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:02:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:02:14,729 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:02:14,731 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:02:14,929 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:02:15,012 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:02:15,013 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 12:02:15,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:15 BoogieIcfgContainer [2023-11-26 12:02:15,024 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:02:15,045 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:02:15,045 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:02:15,051 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:02:15,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:02:14" (1/3) ... [2023-11-26 12:02:15,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135b4275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:15, skipping insertion in model container [2023-11-26 12:02:15,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:14" (2/3) ... [2023-11-26 12:02:15,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135b4275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:15, skipping insertion in model container [2023-11-26 12:02:15,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:15" (3/3) ... [2023-11-26 12:02:15,054 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3.c.v+lhb-reducer.c [2023-11-26 12:02:15,071 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:02:15,072 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:02:15,115 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:02:15,122 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;@1de96220, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:02:15,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:02:15,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 states have internal predecessors, (30), 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) [2023-11-26 12:02:15,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 12:02:15,132 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:15,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:15,133 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:15,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:15,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1546774585, now seen corresponding path program 1 times [2023-11-26 12:02:15,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:15,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541927481] [2023-11-26 12:02:15,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:15,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:16,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:16,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541927481] [2023-11-26 12:02:16,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541927481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:16,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:16,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:02:16,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291825971] [2023-11-26 12:02:16,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:16,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:02:16,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:16,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:02:16,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:02:16,162 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 states have internal predecessors, (30), 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) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-11-26 12:02:20,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 12:02:21,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:21,192 INFO L93 Difference]: Finished difference Result 68 states and 102 transitions. [2023-11-26 12:02:21,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 12:02:21,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) Word has length 10 [2023-11-26 12:02:21,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:21,203 INFO L225 Difference]: With dead ends: 68 [2023-11-26 12:02:21,203 INFO L226 Difference]: Without dead ends: 36 [2023-11-26 12:02:21,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:02:21,209 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 21 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:21,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 64 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 84 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2023-11-26 12:02:21,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-26 12:02:21,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2023-11-26 12:02:21,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 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) [2023-11-26 12:02:21,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2023-11-26 12:02:21,245 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 10 [2023-11-26 12:02:21,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:21,246 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2023-11-26 12:02:21,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-11-26 12:02:21,246 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2023-11-26 12:02:21,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-26 12:02:21,247 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:21,248 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:21,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:02:21,248 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:21,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:21,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1967246895, now seen corresponding path program 1 times [2023-11-26 12:02:21,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:21,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414420008] [2023-11-26 12:02:21,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:21,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:22,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:22,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:22,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414420008] [2023-11-26 12:02:22,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414420008] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:02:22,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416884330] [2023-11-26 12:02:22,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:22,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:22,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:22,031 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:02:22,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 12:02:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:22,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-26 12:02:22,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:23,007 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:23,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:02:23,260 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:02:23,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416884330] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-26 12:02:23,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:02:23,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 7] total 12 [2023-11-26 12:02:23,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701957663] [2023-11-26 12:02:23,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:23,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:02:23,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:23,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:02:23,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-26 12:02:23,265 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-26 12:02:23,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:23,490 INFO L93 Difference]: Finished difference Result 49 states and 64 transitions. [2023-11-26 12:02:23,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:02:23,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) Word has length 17 [2023-11-26 12:02:23,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:23,491 INFO L225 Difference]: With dead ends: 49 [2023-11-26 12:02:23,492 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 12:02:23,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-11-26 12:02:23,494 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 5 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:23,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 34 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:02:23,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 12:02:23,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 12:02:23,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-11-26 12:02:23,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 12:02:23,497 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2023-11-26 12:02:23,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:23,498 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 12:02:23,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-26 12:02:23,498 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 12:02:23,499 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 12:02:23,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 12:02:23,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-26 12:02:23,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:23,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 12:02:23,713 INFO L899 garLoopResultBuilder]: For program point L97(lines 97 106) no Hoare annotation was computed. [2023-11-26 12:02:23,713 INFO L899 garLoopResultBuilder]: For program point L23(lines 23 150) no Hoare annotation was computed. [2023-11-26 12:02:23,714 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 85) no Hoare annotation was computed. [2023-11-26 12:02:23,714 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 16 151) no Hoare annotation was computed. [2023-11-26 12:02:23,714 INFO L899 garLoopResultBuilder]: For program point L90(lines 90 112) no Hoare annotation was computed. [2023-11-26 12:02:23,714 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 99) no Hoare annotation was computed. [2023-11-26 12:02:23,714 INFO L899 garLoopResultBuilder]: For program point L53(lines 25 145) no Hoare annotation was computed. [2023-11-26 12:02:23,715 INFO L899 garLoopResultBuilder]: For program point L20(lines 17 151) no Hoare annotation was computed. [2023-11-26 12:02:23,715 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 113) no Hoare annotation was computed. [2023-11-26 12:02:23,715 INFO L899 garLoopResultBuilder]: For program point L99(line 99) no Hoare annotation was computed. [2023-11-26 12:02:23,715 INFO L899 garLoopResultBuilder]: For program point L33(lines 26 114) no Hoare annotation was computed. [2023-11-26 12:02:23,715 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 12:02:23,715 INFO L899 garLoopResultBuilder]: For program point L128(lines 128 143) no Hoare annotation was computed. [2023-11-26 12:02:23,716 INFO L899 garLoopResultBuilder]: For program point L62(lines 62 84) no Hoare annotation was computed. [2023-11-26 12:02:23,716 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 145) no Hoare annotation was computed. [2023-11-26 12:02:23,716 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 12:02:23,716 INFO L899 garLoopResultBuilder]: For program point L30(lines 26 114) no Hoare annotation was computed. [2023-11-26 12:02:23,716 INFO L899 garLoopResultBuilder]: For program point L117(lines 117 144) no Hoare annotation was computed. [2023-11-26 12:02:23,717 INFO L899 garLoopResultBuilder]: For program point L80(lines 25 145) no Hoare annotation was computed. [2023-11-26 12:02:23,717 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 86) no Hoare annotation was computed. [2023-11-26 12:02:23,717 INFO L899 garLoopResultBuilder]: For program point L68(lines 25 145) no Hoare annotation was computed. [2023-11-26 12:02:23,721 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 12:02:23,724 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:02:23,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:02:23 BoogieIcfgContainer [2023-11-26 12:02:23,730 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:02:23,731 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:02:23,731 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:02:23,731 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:02:23,731 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:15" (3/4) ... [2023-11-26 12:02:23,737 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 12:02:23,749 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-26 12:02:23,750 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 12:02:23,750 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 12:02:23,751 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 12:02:23,868 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:02:23,868 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 12:02:23,868 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:02:23,869 INFO L158 Benchmark]: Toolchain (without parser) took 9667.28ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 119.7MB in the beginning and 137.8MB in the end (delta: -18.1MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2023-11-26 12:02:23,869 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory was 82.5MB in the beginning and 82.5MB in the end (delta: 29.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:02:23,870 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.17ms. Allocated memory is still 165.7MB. Free memory was 119.5MB in the beginning and 107.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 12:02:23,870 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.33ms. Allocated memory is still 165.7MB. Free memory was 107.8MB in the beginning and 106.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:02:23,871 INFO L158 Benchmark]: Boogie Preprocessor took 50.68ms. Allocated memory is still 165.7MB. Free memory was 106.0MB in the beginning and 104.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:02:23,871 INFO L158 Benchmark]: RCFGBuilder took 444.90ms. Allocated memory is still 165.7MB. Free memory was 104.3MB in the beginning and 134.0MB in the end (delta: -29.7MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2023-11-26 12:02:23,872 INFO L158 Benchmark]: TraceAbstraction took 8685.35ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 133.4MB in the beginning and 143.0MB in the end (delta: -9.6MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2023-11-26 12:02:23,872 INFO L158 Benchmark]: Witness Printer took 137.96ms. Allocated memory is still 199.2MB. Free memory was 143.0MB in the beginning and 137.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:02:23,874 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory was 82.5MB in the beginning and 82.5MB in the end (delta: 29.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.17ms. Allocated memory is still 165.7MB. Free memory was 119.5MB in the beginning and 107.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.33ms. Allocated memory is still 165.7MB. Free memory was 107.8MB in the beginning and 106.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.68ms. Allocated memory is still 165.7MB. Free memory was 106.0MB in the beginning and 104.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 444.90ms. Allocated memory is still 165.7MB. Free memory was 104.3MB in the beginning and 134.0MB in the end (delta: -29.7MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8685.35ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 133.4MB in the beginning and 143.0MB in the end (delta: -9.6MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * Witness Printer took 137.96ms. Allocated memory is still 199.2MB. Free memory was 143.0MB in the beginning and 137.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 99]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 98 SdHoareTripleChecker+Invalid, 5.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 102 IncrementalHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 34 mSDtfsCounter, 102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=1, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 907 SizeOfPredicates, 2 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 7/12 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 12:02:23,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3103139-3997-473e-8620-677dfa4e6a16/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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