./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/rlim_invariant.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/rlim_invariant.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ --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 d395d439ec4556dc83dba3523bab6fe5cf68ec358a108cd3824067669c5e9bc5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:26:15,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:26:16,018 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 22:26:16,024 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:26:16,025 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:26:16,067 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:26:16,068 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:26:16,069 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:26:16,070 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:26:16,075 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:26:16,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:26:16,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:26:16,077 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:26:16,079 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:26:16,079 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:26:16,080 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:26:16,081 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:26:16,081 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:26:16,081 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:26:16,082 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:26:16,082 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:26:16,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:26:16,083 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:26:16,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:26:16,084 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 22:26:16,085 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:26:16,085 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:26:16,085 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:26:16,086 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:26:16,087 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:26:16,088 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:26:16,089 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:26:16,089 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:26:16,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:26:16,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:26:16,090 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:26:16,090 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:26:16,090 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:26:16,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:26:16,091 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:26:16,091 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:26:16,091 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:26:16,092 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:26:16,092 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:26:16,093 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_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d395d439ec4556dc83dba3523bab6fe5cf68ec358a108cd3824067669c5e9bc5 [2023-11-23 22:26:16,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:26:16,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:26:16,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:26:16,432 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:26:16,432 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:26:16,434 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/float-benchs/rlim_invariant.c [2023-11-23 22:26:19,648 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:26:19,848 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:26:19,848 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/sv-benchmarks/c/float-benchs/rlim_invariant.c [2023-11-23 22:26:19,857 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/data/743ceaaa2/03179f8da551494a95d5df51a20aadcc/FLAGdef25c6ff [2023-11-23 22:26:19,875 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/data/743ceaaa2/03179f8da551494a95d5df51a20aadcc [2023-11-23 22:26:19,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:26:19,880 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:26:19,881 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:26:19,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:26:19,887 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:26:19,888 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:26:19" (1/1) ... [2023-11-23 22:26:19,889 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@331b969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:19, skipping insertion in model container [2023-11-23 22:26:19,889 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:26:19" (1/1) ... [2023-11-23 22:26:19,915 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:26:20,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:26:20,157 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:26:20,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:26:20,199 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:26:20,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:20 WrapperNode [2023-11-23 22:26:20,200 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:26:20,202 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:26:20,202 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:26:20,202 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:26:20,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:20" (1/1) ... [2023-11-23 22:26:20,218 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:20" (1/1) ... [2023-11-23 22:26:20,242 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2023-11-23 22:26:20,242 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:26:20,243 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:26:20,243 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:26:20,244 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:26:20,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:20" (1/1) ... [2023-11-23 22:26:20,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:20" (1/1) ... [2023-11-23 22:26:20,263 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:20" (1/1) ... [2023-11-23 22:26:20,273 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 22:26:20,273 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:20" (1/1) ... [2023-11-23 22:26:20,273 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:20" (1/1) ... [2023-11-23 22:26:20,277 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:20" (1/1) ... [2023-11-23 22:26:20,281 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:20" (1/1) ... [2023-11-23 22:26:20,282 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:20" (1/1) ... [2023-11-23 22:26:20,283 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:20" (1/1) ... [2023-11-23 22:26:20,285 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:26:20,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:26:20,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:26:20,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:26:20,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:20" (1/1) ... [2023-11-23 22:26:20,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:26:20,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:26:20,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:26:20,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:26:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:26:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 22:26:20,367 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 22:26:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:26:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:26:20,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:26:20,442 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:26:20,445 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:26:20,661 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:26:20,703 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:26:20,704 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 22:26:20,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:26:20 BoogieIcfgContainer [2023-11-23 22:26:20,705 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:26:20,709 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:26:20,709 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:26:20,712 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:26:20,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:26:19" (1/3) ... [2023-11-23 22:26:20,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1b4c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:26:20, skipping insertion in model container [2023-11-23 22:26:20,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:20" (2/3) ... [2023-11-23 22:26:20,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1b4c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:26:20, skipping insertion in model container [2023-11-23 22:26:20,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:26:20" (3/3) ... [2023-11-23 22:26:20,719 INFO L112 eAbstractionObserver]: Analyzing ICFG rlim_invariant.c [2023-11-23 22:26:20,740 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:26:20,741 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 22:26:20,809 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:26:20,820 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;@216a6827, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:26:20,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 22:26:20,825 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 16 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 22:26:20,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 22:26:20,837 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:20,838 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:20,840 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-23 22:26:20,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:20,849 INFO L85 PathProgramCache]: Analyzing trace with hash -590686558, now seen corresponding path program 1 times [2023-11-23 22:26:20,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:20,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749148592] [2023-11-23 22:26:20,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:20,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:21,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 22:26:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:21,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 22:26:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:21,113 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:26:21,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:21,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749148592] [2023-11-23 22:26:21,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749148592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:21,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:21,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:21,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834013981] [2023-11-23 22:26:21,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:21,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:26:21,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:21,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:26:21,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:26:21,205 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 16 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 22:26:21,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:21,235 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2023-11-23 22:26:21,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:26:21,238 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2023-11-23 22:26:21,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:21,245 INFO L225 Difference]: With dead ends: 39 [2023-11-23 22:26:21,245 INFO L226 Difference]: Without dead ends: 18 [2023-11-23 22:26:21,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:26:21,252 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:26:21,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:26:21,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-11-23 22:26:21,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-11-23 22:26:21,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 22:26:21,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2023-11-23 22:26:21,290 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 18 [2023-11-23 22:26:21,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:21,290 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2023-11-23 22:26:21,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 22:26:21,291 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-23 22:26:21,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 22:26:21,292 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:21,293 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:21,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:26:21,293 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-23 22:26:21,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:21,294 INFO L85 PathProgramCache]: Analyzing trace with hash -921745438, now seen corresponding path program 1 times [2023-11-23 22:26:21,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:21,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881253431] [2023-11-23 22:26:21,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:21,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:21,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 22:26:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:21,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 22:26:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:21,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:26:21,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:21,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881253431] [2023-11-23 22:26:21,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881253431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:21,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:21,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:26:21,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494571990] [2023-11-23 22:26:21,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:21,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:26:21,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:21,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:26:21,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:26:21,504 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:26:21,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:21,550 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2023-11-23 22:26:21,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:26:21,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-23 22:26:21,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:21,552 INFO L225 Difference]: With dead ends: 31 [2023-11-23 22:26:21,552 INFO L226 Difference]: Without dead ends: 29 [2023-11-23 22:26:21,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:26:21,554 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:26:21,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 47 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:26:21,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-23 22:26:21,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-23 22:26:21,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-23 22:26:21,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2023-11-23 22:26:21,564 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 18 [2023-11-23 22:26:21,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:21,566 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2023-11-23 22:26:21,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:26:21,566 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2023-11-23 22:26:21,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 22:26:21,568 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:21,568 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-23 22:26:21,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:26:21,569 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-23 22:26:21,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:21,570 INFO L85 PathProgramCache]: Analyzing trace with hash 885639803, now seen corresponding path program 1 times [2023-11-23 22:26:21,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:21,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863180386] [2023-11-23 22:26:21,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:21,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:21,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 22:26:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:21,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 22:26:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:21,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 22:26:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:21,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 22:26:21,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:21,823 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-23 22:26:21,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:21,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863180386] [2023-11-23 22:26:21,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863180386] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:26:21,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118170437] [2023-11-23 22:26:21,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:21,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:21,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:26:21,840 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:26:21,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:26:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:21,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:26:21,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:26:22,155 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-23 22:26:22,156 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:26:22,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118170437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:22,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:26:22,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-23 22:26:22,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306311684] [2023-11-23 22:26:22,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:22,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:26:22,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:22,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:26:22,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:26:22,161 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:26:22,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:22,248 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2023-11-23 22:26:22,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:26:22,249 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2023-11-23 22:26:22,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:22,252 INFO L225 Difference]: With dead ends: 29 [2023-11-23 22:26:22,253 INFO L226 Difference]: Without dead ends: 28 [2023-11-23 22:26:22,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:26:22,258 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 14 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:26:22,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 89 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:26:22,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-23 22:26:22,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-23 22:26:22,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-23 22:26:22,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2023-11-23 22:26:22,275 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 36 [2023-11-23 22:26:22,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:22,276 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2023-11-23 22:26:22,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:26:22,276 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2023-11-23 22:26:22,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-23 22:26:22,278 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:22,278 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-23 22:26:22,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:26:22,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:22,503 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-23 22:26:22,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:22,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1685030190, now seen corresponding path program 1 times [2023-11-23 22:26:22,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:22,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569422636] [2023-11-23 22:26:22,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:22,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:22,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 22:26:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:22,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 22:26:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:22,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 22:26:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:22,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 22:26:22,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:22,729 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-23 22:26:22,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:22,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569422636] [2023-11-23 22:26:22,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569422636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:22,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:22,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:26:22,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280165403] [2023-11-23 22:26:22,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:22,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:26:22,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:22,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:26:22,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:26:22,764 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:26:22,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:22,800 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2023-11-23 22:26:22,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:26:22,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2023-11-23 22:26:22,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:22,802 INFO L225 Difference]: With dead ends: 28 [2023-11-23 22:26:22,802 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 22:26:22,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:26:22,810 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:26:22,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 33 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:26:22,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 22:26:22,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 22:26:22,812 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) [2023-11-23 22:26:22,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 22:26:22,812 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2023-11-23 22:26:22,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:22,812 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:26:22,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:26:22,813 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 22:26:22,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 22:26:22,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-23 22:26:22,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-23 22:26:22,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:26:22,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 22:26:22,872 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-11-23 22:26:22,874 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 22:26:22,874 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 30) no Hoare annotation was computed. [2023-11-23 22:26:22,874 INFO L895 garLoopResultBuilder]: At program point L23(line 23) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 99999))) [2023-11-23 22:26:22,876 INFO L895 garLoopResultBuilder]: At program point L23-1(line 23) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 99999))) [2023-11-23 22:26:22,876 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-23 22:26:22,876 INFO L899 garLoopResultBuilder]: For program point L19-4(line 19) no Hoare annotation was computed. [2023-11-23 22:26:22,876 INFO L895 garLoopResultBuilder]: At program point L19-5(lines 19 33) the Hoare annotation is: (or (< 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0)) [2023-11-23 22:26:22,877 INFO L899 garLoopResultBuilder]: For program point L19-6(lines 19 33) no Hoare annotation was computed. [2023-11-23 22:26:22,877 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 22:26:22,877 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-11-23 22:26:22,877 INFO L899 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2023-11-23 22:26:22,878 INFO L899 garLoopResultBuilder]: For program point L30-2(lines 29 30) no Hoare annotation was computed. [2023-11-23 22:26:22,878 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2023-11-23 22:26:22,878 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2023-11-23 22:26:22,878 INFO L899 garLoopResultBuilder]: For program point L10-3(line 10) no Hoare annotation was computed. [2023-11-23 22:26:22,879 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2023-11-23 22:26:22,879 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2023-11-23 22:26:22,880 INFO L899 garLoopResultBuilder]: For program point L8-2(lines 7 9) no Hoare annotation was computed. [2023-11-23 22:26:22,880 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2023-11-23 22:26:22,893 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-23 22:26:22,895 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:26:22,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:26:22 BoogieIcfgContainer [2023-11-23 22:26:22,909 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:26:22,910 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:26:22,910 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:26:22,911 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:26:22,911 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:26:20" (3/4) ... [2023-11-23 22:26:22,913 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 22:26:22,918 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-23 22:26:22,925 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-23 22:26:22,929 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 22:26:22,930 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 22:26:22,930 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 22:26:23,042 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 22:26:23,042 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 22:26:23,043 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:26:23,044 INFO L158 Benchmark]: Toolchain (without parser) took 3164.84ms. Allocated memory is still 148.9MB. Free memory was 111.6MB in the beginning and 108.6MB in the end (delta: 3.0MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2023-11-23 22:26:23,045 INFO L158 Benchmark]: CDTParser took 2.39ms. Allocated memory is still 102.8MB. Free memory is still 54.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:26:23,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.52ms. Allocated memory is still 148.9MB. Free memory was 111.6MB in the beginning and 101.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 22:26:23,052 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.91ms. Allocated memory is still 148.9MB. Free memory was 101.1MB in the beginning and 99.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:26:23,052 INFO L158 Benchmark]: Boogie Preprocessor took 42.14ms. Allocated memory is still 148.9MB. Free memory was 99.5MB in the beginning and 97.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:26:23,053 INFO L158 Benchmark]: RCFGBuilder took 419.67ms. Allocated memory is still 148.9MB. Free memory was 97.9MB in the beginning and 86.9MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 22:26:23,054 INFO L158 Benchmark]: TraceAbstraction took 2200.96ms. Allocated memory is still 148.9MB. Free memory was 86.5MB in the beginning and 113.9MB in the end (delta: -27.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:26:23,054 INFO L158 Benchmark]: Witness Printer took 133.58ms. Allocated memory is still 148.9MB. Free memory was 113.9MB in the beginning and 108.6MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 22:26:23,057 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.39ms. Allocated memory is still 102.8MB. Free memory is still 54.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.52ms. Allocated memory is still 148.9MB. Free memory was 111.6MB in the beginning and 101.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.91ms. Allocated memory is still 148.9MB. Free memory was 101.1MB in the beginning and 99.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.14ms. Allocated memory is still 148.9MB. Free memory was 99.5MB in the beginning and 97.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 419.67ms. Allocated memory is still 148.9MB. Free memory was 97.9MB in the beginning and 86.9MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2200.96ms. Allocated memory is still 148.9MB. Free memory was 86.5MB in the beginning and 113.9MB in the end (delta: -27.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 133.58ms. Allocated memory is still 148.9MB. Free memory was 113.9MB in the beginning and 108.6MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 189 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 114 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 75 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=2, InterpolantAutomatonStates: 16, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 9 PreInvPairs, 15 NumberOfFragments, 30 HoareAnnotationTreeSize, 9 FomulaSimplifications, 21 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 252 SizeOfPredicates, 2 NumberOfNonLiveVariables, 90 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 99/108 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 2 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) RESULT: Ultimate proved your program to be correct! [2023-11-23 22:26:23,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7bdf27-4d4e-4fa8-8735-4b83c0b45daa/bin/uautomizer-verify-zZY32mL2XJ/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