./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/a.08-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4fa349-9ee7-4853-91b1-61845045fe14/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4fa349-9ee7-4853-91b1-61845045fe14/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_db4fa349-9ee7-4853-91b1-61845045fe14/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4fa349-9ee7-4853-91b1-61845045fe14/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/a.08-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4fa349-9ee7-4853-91b1-61845045fe14/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4fa349-9ee7-4853-91b1-61845045fe14/bin/uautomizer-verify-VRDe98Ueme --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 64bit --witnessprinter.graph.data.programhash 6c2edc31dcdc4b2a4abe4268de27cc56aedb322bc6628c226d1c7bd6753071a5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:04:38,245 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:04:38,345 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4fa349-9ee7-4853-91b1-61845045fe14/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-26 12:04:38,355 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:04:38,357 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:04:38,398 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:04:38,399 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:04:38,399 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:04:38,400 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:04:38,405 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:04:38,406 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:04:38,407 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:04:38,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:04:38,410 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:04:38,410 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:04:38,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:04:38,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:04:38,411 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:04:38,412 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:04:38,412 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:04:38,413 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:04:38,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:04:38,414 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 12:04:38,414 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:04:38,414 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:04:38,415 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:04:38,416 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:04:38,416 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:04:38,417 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:04:38,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:04:38,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:38,419 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:04:38,419 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:04:38,419 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:04:38,419 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:04:38,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:04:38,420 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:04:38,420 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:04:38,420 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:04:38,421 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:04:38,421 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:04:38,421 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_db4fa349-9ee7-4853-91b1-61845045fe14/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4fa349-9ee7-4853-91b1-61845045fe14/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c2edc31dcdc4b2a4abe4268de27cc56aedb322bc6628c226d1c7bd6753071a5 [2023-11-26 12:04:38,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:04:38,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:04:38,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:04:38,747 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:04:38,748 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:04:38,749 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4fa349-9ee7-4853-91b1-61845045fe14/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/termination-memory-alloca/a.08-alloca.i [2023-11-26 12:04:41,959 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:04:42,239 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:04:42,239 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4fa349-9ee7-4853-91b1-61845045fe14/sv-benchmarks/c/termination-memory-alloca/a.08-alloca.i [2023-11-26 12:04:42,256 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4fa349-9ee7-4853-91b1-61845045fe14/bin/uautomizer-verify-VRDe98Ueme/data/18d28d091/c945184c0760486b89434853a94cdd82/FLAG553648172 [2023-11-26 12:04:42,280 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4fa349-9ee7-4853-91b1-61845045fe14/bin/uautomizer-verify-VRDe98Ueme/data/18d28d091/c945184c0760486b89434853a94cdd82 [2023-11-26 12:04:42,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:04:42,285 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:04:42,286 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:42,286 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:04:42,296 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:04:42,297 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:42" (1/1) ... [2023-11-26 12:04:42,298 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c462f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:42, skipping insertion in model container [2023-11-26 12:04:42,299 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:42" (1/1) ... [2023-11-26 12:04:42,342 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:04:42,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:42,685 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:04:42,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:42,776 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:04:42,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:42 WrapperNode [2023-11-26 12:04:42,777 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:42,778 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:42,778 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:04:42,778 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:04:42,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:42" (1/1) ... [2023-11-26 12:04:42,798 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:42" (1/1) ... [2023-11-26 12:04:42,818 INFO L138 Inliner]: procedures = 111, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2023-11-26 12:04:42,818 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:42,819 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:04:42,819 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:04:42,819 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:04:42,830 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:42" (1/1) ... [2023-11-26 12:04:42,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:42" (1/1) ... [2023-11-26 12:04:42,834 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:42" (1/1) ... [2023-11-26 12:04:42,856 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 4, 5]. 45 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0, 0]. The 5 writes are split as follows [1, 2, 2]. [2023-11-26 12:04:42,856 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:42" (1/1) ... [2023-11-26 12:04:42,857 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:42" (1/1) ... [2023-11-26 12:04:42,862 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:42" (1/1) ... [2023-11-26 12:04:42,865 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:42" (1/1) ... [2023-11-26 12:04:42,867 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:42" (1/1) ... [2023-11-26 12:04:42,868 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:42" (1/1) ... [2023-11-26 12:04:42,871 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:04:42,872 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:04:42,873 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:04:42,873 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:04:42,874 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:42" (1/1) ... [2023-11-26 12:04:42,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:42,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4fa349-9ee7-4853-91b1-61845045fe14/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:04:42,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4fa349-9ee7-4853-91b1-61845045fe14/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:04:42,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4fa349-9ee7-4853-91b1-61845045fe14/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:04:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 12:04:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 12:04:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 12:04:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 12:04:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 12:04:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 12:04:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:04:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:04:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:04:42,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:04:43,076 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:04:43,078 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:04:43,262 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:04:43,339 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:04:43,339 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:04:43,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:43 BoogieIcfgContainer [2023-11-26 12:04:43,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:04:43,345 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:04:43,345 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:04:43,349 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:04:43,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:04:42" (1/3) ... [2023-11-26 12:04:43,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21078857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:04:43, skipping insertion in model container [2023-11-26 12:04:43,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:42" (2/3) ... [2023-11-26 12:04:43,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21078857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:04:43, skipping insertion in model container [2023-11-26 12:04:43,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:43" (3/3) ... [2023-11-26 12:04:43,352 INFO L112 eAbstractionObserver]: Analyzing ICFG a.08-alloca.i [2023-11-26 12:04:43,373 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:04:43,373 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-26 12:04:43,418 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:04:43,425 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;@1cd3d4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:04:43,425 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-26 12:04:43,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 states have internal predecessors, (16), 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 12:04:43,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-26 12:04:43,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:43,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-26 12:04:43,435 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 12:04:43,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:43,440 INFO L85 PathProgramCache]: Analyzing trace with hash 63018152, now seen corresponding path program 1 times [2023-11-26 12:04:43,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:43,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878121850] [2023-11-26 12:04:43,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:43,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:44,054 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 12:04:44,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:44,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878121850] [2023-11-26 12:04:44,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878121850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:44,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:44,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:44,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938004593] [2023-11-26 12:04:44,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:44,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:04:44,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:44,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:04:44,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:04:44,121 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 states have internal predecessors, (16), 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 12:04:44,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:44,192 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2023-11-26 12:04:44,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:04:44,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-11-26 12:04:44,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:44,202 INFO L225 Difference]: With dead ends: 16 [2023-11-26 12:04:44,203 INFO L226 Difference]: Without dead ends: 11 [2023-11-26 12:04:44,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:04:44,209 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 11 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:44,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:04:44,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-11-26 12:04:44,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-26 12:04:44,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.5) internal successors, (12), 10 states have internal predecessors, (12), 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 12:04:44,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2023-11-26 12:04:44,244 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 5 [2023-11-26 12:04:44,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:44,245 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-11-26 12:04:44,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 12:04:44,245 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-11-26 12:04:44,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 12:04:44,246 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:44,246 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-26 12:04:44,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:04:44,246 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 12:04:44,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:44,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1953562764, now seen corresponding path program 1 times [2023-11-26 12:04:44,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:44,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523399357] [2023-11-26 12:04:44,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:44,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:44,499 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 12:04:44,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:44,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523399357] [2023-11-26 12:04:44,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523399357] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:44,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:44,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:04:44,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090049213] [2023-11-26 12:04:44,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:44,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:04:44,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:44,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:04:44,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:04:44,505 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 12:04:44,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:44,541 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2023-11-26 12:04:44,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:04:44,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2023-11-26 12:04:44,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:44,543 INFO L225 Difference]: With dead ends: 11 [2023-11-26 12:04:44,543 INFO L226 Difference]: Without dead ends: 10 [2023-11-26 12:04:44,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:04:44,545 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:44,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 18 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:04:44,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-26 12:04:44,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-26 12:04:44,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 12:04:44,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2023-11-26 12:04:44,550 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2023-11-26 12:04:44,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:44,551 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2023-11-26 12:04:44,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 12:04:44,551 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-11-26 12:04:44,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-26 12:04:44,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:44,552 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:44,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:04:44,553 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 12:04:44,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:44,553 INFO L85 PathProgramCache]: Analyzing trace with hash 430903594, now seen corresponding path program 1 times [2023-11-26 12:04:44,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:44,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949410588] [2023-11-26 12:04:44,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:44,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:44,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:44,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:44,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949410588] [2023-11-26 12:04:44,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949410588] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:44,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:44,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:44,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227788600] [2023-11-26 12:04:44,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:44,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:04:44,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:44,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:04:44,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:04:44,786 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 12:04:44,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:44,831 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2023-11-26 12:04:44,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:04:44,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-11-26 12:04:44,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:44,834 INFO L225 Difference]: With dead ends: 10 [2023-11-26 12:04:44,834 INFO L226 Difference]: Without dead ends: 9 [2023-11-26 12:04:44,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:04:44,844 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 8 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 [2023-11-26 12:04:44,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 8 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:04:44,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-26 12:04:44,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-26 12:04:44,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 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 12:04:44,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2023-11-26 12:04:44,855 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 7 [2023-11-26 12:04:44,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:44,856 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-11-26 12:04:44,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 12:04:44,857 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-11-26 12:04:44,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-26 12:04:44,859 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:44,860 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:44,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:04:44,860 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 12:04:44,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:44,866 INFO L85 PathProgramCache]: Analyzing trace with hash 473109582, now seen corresponding path program 1 times [2023-11-26 12:04:44,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:44,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712818968] [2023-11-26 12:04:44,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:44,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:45,199 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 12:04:45,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:45,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712818968] [2023-11-26 12:04:45,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712818968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:45,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:45,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:04:45,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649100521] [2023-11-26 12:04:45,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:45,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:04:45,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:45,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:04:45,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:04:45,204 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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 12:04:45,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:45,286 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2023-11-26 12:04:45,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:04:45,287 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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 8 [2023-11-26 12:04:45,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:45,288 INFO L225 Difference]: With dead ends: 9 [2023-11-26 12:04:45,288 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 12:04:45,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:04:45,301 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:45,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:04:45,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 12:04:45,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 12:04:45,307 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 12:04:45,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 12:04:45,307 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2023-11-26 12:04:45,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:45,308 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 12:04:45,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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 12:04:45,308 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 12:04:45,308 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 12:04:45,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-26 12:04:45,312 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-26 12:04:45,312 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-26 12:04:45,313 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-26 12:04:45,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:04:45,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 12:04:45,340 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 556) no Hoare annotation was computed. [2023-11-26 12:04:45,340 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 12:04:45,340 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 557) no Hoare annotation was computed. [2023-11-26 12:04:45,340 INFO L899 garLoopResultBuilder]: For program point L556(line 556) no Hoare annotation was computed. [2023-11-26 12:04:45,341 INFO L899 garLoopResultBuilder]: For program point L556-1(line 556) no Hoare annotation was computed. [2023-11-26 12:04:45,341 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 12:04:45,341 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 556) no Hoare annotation was computed. [2023-11-26 12:04:45,341 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 557) no Hoare annotation was computed. [2023-11-26 12:04:45,341 INFO L899 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2023-11-26 12:04:45,342 INFO L899 garLoopResultBuilder]: For program point L557-1(line 557) no Hoare annotation was computed. [2023-11-26 12:04:45,343 INFO L899 garLoopResultBuilder]: For program point L555-1(line 555) no Hoare annotation was computed. [2023-11-26 12:04:45,344 INFO L899 garLoopResultBuilder]: For program point L555-3(lines 555 558) no Hoare annotation was computed. [2023-11-26 12:04:45,344 INFO L895 garLoopResultBuilder]: At program point L555-5(lines 555 558) the Hoare annotation is: (and (<= 0 (+ (select (select |#memory_int#2| |ULTIMATE.start_test_fun_~x_ref~0#1.base|) |ULTIMATE.start_test_fun_~x_ref~0#1.offset|) 2147483648)) (<= 0 (+ (select (select |#memory_int#1| |ULTIMATE.start_test_fun_~y_ref~0#1.base|) |ULTIMATE.start_test_fun_~y_ref~0#1.offset|) 2147483648))) [2023-11-26 12:04:45,344 INFO L899 garLoopResultBuilder]: For program point L555-6(lines 555 558) no Hoare annotation was computed. [2023-11-26 12:04:45,348 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-26 12:04:45,351 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:04:45,364 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~x_ref~0!base][~x_ref~0!offset] could not be translated [2023-11-26 12:04:45,365 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~y_ref~0!base][~y_ref~0!offset] could not be translated [2023-11-26 12:04:45,366 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:04:45 BoogieIcfgContainer [2023-11-26 12:04:45,366 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:04:45,367 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:04:45,367 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:04:45,367 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:04:45,368 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:43" (3/4) ... [2023-11-26 12:04:45,370 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 12:04:45,378 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-26 12:04:45,378 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-26 12:04:45,379 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-26 12:04:45,379 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 12:04:45,465 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4fa349-9ee7-4853-91b1-61845045fe14/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:04:45,465 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4fa349-9ee7-4853-91b1-61845045fe14/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 12:04:45,465 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:04:45,466 INFO L158 Benchmark]: Toolchain (without parser) took 3181.15ms. Allocated memory is still 161.5MB. Free memory was 117.9MB in the beginning and 66.8MB in the end (delta: 51.1MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. [2023-11-26 12:04:45,466 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 60.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:04:45,467 INFO L158 Benchmark]: CACSL2BoogieTranslator took 490.97ms. Allocated memory is still 161.5MB. Free memory was 117.5MB in the beginning and 101.5MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 12:04:45,467 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.57ms. Allocated memory is still 161.5MB. Free memory was 101.5MB in the beginning and 99.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:45,467 INFO L158 Benchmark]: Boogie Preprocessor took 52.40ms. Allocated memory is still 161.5MB. Free memory was 99.5MB in the beginning and 97.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:04:45,468 INFO L158 Benchmark]: RCFGBuilder took 467.97ms. Allocated memory is still 161.5MB. Free memory was 97.8MB in the beginning and 130.8MB in the end (delta: -33.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 12:04:45,468 INFO L158 Benchmark]: TraceAbstraction took 2021.15ms. Allocated memory is still 161.5MB. Free memory was 130.1MB in the beginning and 71.0MB in the end (delta: 59.2MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2023-11-26 12:04:45,468 INFO L158 Benchmark]: Witness Printer took 98.66ms. Allocated memory is still 161.5MB. Free memory was 71.0MB in the beginning and 66.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:04:45,470 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 60.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 490.97ms. Allocated memory is still 161.5MB. Free memory was 117.5MB in the beginning and 101.5MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.57ms. Allocated memory is still 161.5MB. Free memory was 101.5MB in the beginning and 99.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.40ms. Allocated memory is still 161.5MB. Free memory was 99.5MB in the beginning and 97.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 467.97ms. Allocated memory is still 161.5MB. Free memory was 97.8MB in the beginning and 130.8MB in the end (delta: -33.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2021.15ms. Allocated memory is still 161.5MB. Free memory was 130.1MB in the beginning and 71.0MB in the end (delta: 59.2MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. * Witness Printer took 98.66ms. Allocated memory is still 161.5MB. Free memory was 71.0MB in the beginning and 66.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~x_ref~0!base][~x_ref~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~y_ref~0!base][~y_ref~0!offset] could not be translated * 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: 556]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 556]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 557]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 557]: 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 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 19 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 19 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 145 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-26 12:04:45,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4fa349-9ee7-4853-91b1-61845045fe14/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