./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/chunk3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/chunk3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya --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 19fa5e5331bf5f5328e727d3adbf080a08b9ec2fa548b9c0eb2f35cc19738b3d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:35:49,138 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:35:49,224 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 00:35:49,228 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:35:49,229 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:35:49,254 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:35:49,254 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:35:49,255 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:35:49,256 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:35:49,256 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:35:49,257 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:35:49,257 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:35:49,258 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:35:49,258 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:35:49,259 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:35:49,259 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:35:49,260 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:35:49,260 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:35:49,261 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:35:49,261 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:35:49,262 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:35:49,262 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:35:49,263 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 00:35:49,263 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:35:49,264 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:35:49,264 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:35:49,265 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:35:49,265 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:35:49,266 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:35:49,266 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:35:49,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:35:49,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:35:49,268 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:35:49,268 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:35:49,268 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:35:49,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:35:49,268 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:35:49,269 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:35:49,269 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:35:49,269 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:35:49,269 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:35:49,270 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_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19fa5e5331bf5f5328e727d3adbf080a08b9ec2fa548b9c0eb2f35cc19738b3d [2023-11-29 00:35:49,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:35:49,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:35:49,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:35:49,530 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:35:49,531 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:35:49,532 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-recursive-malloc/chunk3.i [2023-11-29 00:35:52,292 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:35:52,472 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:35:52,473 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/sv-benchmarks/c/termination-recursive-malloc/chunk3.i [2023-11-29 00:35:52,480 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/data/91505cfda/662cdd5c0f9a4c25951395834e500b41/FLAG93b49bb67 [2023-11-29 00:35:52,495 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/data/91505cfda/662cdd5c0f9a4c25951395834e500b41 [2023-11-29 00:35:52,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:35:52,500 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:35:52,501 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:35:52,501 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:35:52,507 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:35:52,507 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:35:52" (1/1) ... [2023-11-29 00:35:52,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b697a91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:52, skipping insertion in model container [2023-11-29 00:35:52,509 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:35:52" (1/1) ... [2023-11-29 00:35:52,531 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:35:52,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:35:52,722 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:35:52,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:35:52,755 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:35:52,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:52 WrapperNode [2023-11-29 00:35:52,756 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:35:52,757 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:35:52,757 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:35:52,757 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:35:52,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:52" (1/1) ... [2023-11-29 00:35:52,772 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:52" (1/1) ... [2023-11-29 00:35:52,791 INFO L138 Inliner]: procedures = 13, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2023-11-29 00:35:52,792 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:35:52,792 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:35:52,793 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:35:52,793 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:35:52,804 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:52" (1/1) ... [2023-11-29 00:35:52,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:52" (1/1) ... [2023-11-29 00:35:52,807 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:52" (1/1) ... [2023-11-29 00:35:52,825 INFO L175 MemorySlicer]: Split 22 memory accesses to 2 slices as follows [14, 8]. 64 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0]. The 11 writes are split as follows [7, 4]. [2023-11-29 00:35:52,825 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:52" (1/1) ... [2023-11-29 00:35:52,825 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:52" (1/1) ... [2023-11-29 00:35:52,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:52" (1/1) ... [2023-11-29 00:35:52,835 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:52" (1/1) ... [2023-11-29 00:35:52,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:52" (1/1) ... [2023-11-29 00:35:52,838 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:52" (1/1) ... [2023-11-29 00:35:52,841 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:35:52,842 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:35:52,842 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:35:52,842 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:35:52,843 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:52" (1/1) ... [2023-11-29 00:35:52,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:35:52,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:35:52,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:35:52,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:35:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 00:35:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 00:35:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure chunk [2023-11-29 00:35:52,902 INFO L138 BoogieDeclarations]: Found implementation of procedure chunk [2023-11-29 00:35:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 00:35:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 00:35:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 00:35:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 00:35:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 00:35:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:35:52,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:35:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 00:35:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 00:35:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:35:52,984 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:35:52,986 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:35:53,195 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:35:53,220 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:35:53,220 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 00:35:53,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:35:53 BoogieIcfgContainer [2023-11-29 00:35:53,221 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:35:53,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:35:53,224 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:35:53,227 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:35:53,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:35:52" (1/3) ... [2023-11-29 00:35:53,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348ebd72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:35:53, skipping insertion in model container [2023-11-29 00:35:53,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:52" (2/3) ... [2023-11-29 00:35:53,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348ebd72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:35:53, skipping insertion in model container [2023-11-29 00:35:53,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:35:53" (3/3) ... [2023-11-29 00:35:53,230 INFO L112 eAbstractionObserver]: Analyzing ICFG chunk3.i [2023-11-29 00:35:53,245 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:35:53,245 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 00:35:53,286 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:35:53,293 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;@1d63f78c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:35:53,293 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 00:35:53,296 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 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) [2023-11-29 00:35:53,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 00:35:53,302 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:35:53,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 00:35:53,303 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 00:35:53,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:35:53,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1736100445, now seen corresponding path program 1 times [2023-11-29 00:35:53,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:35:53,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441467454] [2023-11-29 00:35:53,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:35:53,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:35:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:35:54,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:35:54,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:35:54,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441467454] [2023-11-29 00:35:54,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441467454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:35:54,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:35:54,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:35:54,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498594526] [2023-11-29 00:35:54,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:35:54,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 00:35:54,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:35:54,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:35:54,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:35:54,191 INFO L87 Difference]: Start difference. First operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 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 7 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:54,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:35:54,445 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2023-11-29 00:35:54,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:35:54,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 00:35:54,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:35:54,453 INFO L225 Difference]: With dead ends: 26 [2023-11-29 00:35:54,453 INFO L226 Difference]: Without dead ends: 15 [2023-11-29 00:35:54,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:35:54,460 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 14 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:35:54,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 33 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:35:54,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-29 00:35:54,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2023-11-29 00:35:54,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:54,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-11-29 00:35:54,490 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 6 [2023-11-29 00:35:54,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:35:54,491 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-11-29 00:35:54,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:54,491 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-11-29 00:35:54,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 00:35:54,492 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:35:54,492 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:35:54,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:35:54,492 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 00:35:54,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:35:54,493 INFO L85 PathProgramCache]: Analyzing trace with hash -2015461015, now seen corresponding path program 1 times [2023-11-29 00:35:54,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:35:54,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074572381] [2023-11-29 00:35:54,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:35:54,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:35:54,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:35:54,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:35:54,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:35:54,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074572381] [2023-11-29 00:35:54,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074572381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:35:54,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:35:54,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:35:54,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141103166] [2023-11-29 00:35:54,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:35:54,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 00:35:54,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:35:54,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:35:54,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:35:54,948 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:55,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:35:55,104 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-11-29 00:35:55,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:35:55,105 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 00:35:55,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:35:55,106 INFO L225 Difference]: With dead ends: 15 [2023-11-29 00:35:55,106 INFO L226 Difference]: Without dead ends: 14 [2023-11-29 00:35:55,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:35:55,108 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:35:55,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 19 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:35:55,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-29 00:35:55,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-29 00:35:55,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:55,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-29 00:35:55,114 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2023-11-29 00:35:55,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:35:55,114 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-11-29 00:35:55,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:55,115 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-11-29 00:35:55,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 00:35:55,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:35:55,116 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:35:55,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 00:35:55,116 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 00:35:55,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:35:55,117 INFO L85 PathProgramCache]: Analyzing trace with hash -2003363278, now seen corresponding path program 1 times [2023-11-29 00:35:55,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:35:55,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092026348] [2023-11-29 00:35:55,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:35:55,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:35:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:35:55,997 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:35:55,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:35:55,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092026348] [2023-11-29 00:35:55,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092026348] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:35:55,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90869816] [2023-11-29 00:35:55,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:35:55,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:35:55,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:35:56,002 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:35:56,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 00:35:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:35:56,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 57 conjunts are in the unsatisfiable core [2023-11-29 00:35:56,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:35:56,219 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 00:35:56,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 103 treesize of output 107 [2023-11-29 00:35:56,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 1 [2023-11-29 00:35:56,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 45 [2023-11-29 00:35:56,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2023-11-29 00:35:56,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2023-11-29 00:35:56,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 21 [2023-11-29 00:35:56,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2023-11-29 00:35:56,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 00:35:56,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-29 00:35:56,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:35:56,739 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:35:56,857 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 00:35:56,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2023-11-29 00:35:56,868 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 00:35:56,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 59 [2023-11-29 00:35:56,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-11-29 00:35:57,058 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:35:57,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90869816] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:35:57,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:35:57,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 25 [2023-11-29 00:35:57,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461708312] [2023-11-29 00:35:57,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:35:57,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 00:35:57,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:35:57,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 00:35:57,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2023-11-29 00:35:57,062 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 26 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:57,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:35:57,888 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-11-29 00:35:57,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:35:57,888 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-29 00:35:57,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:35:57,889 INFO L225 Difference]: With dead ends: 15 [2023-11-29 00:35:57,889 INFO L226 Difference]: Without dead ends: 14 [2023-11-29 00:35:57,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=153, Invalid=969, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 00:35:57,891 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 28 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:35:57,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 21 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:35:57,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-29 00:35:57,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-11-29 00:35:57,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:57,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-11-29 00:35:57,895 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2023-11-29 00:35:57,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:35:57,895 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-11-29 00:35:57,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:57,896 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-11-29 00:35:57,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 00:35:57,896 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:35:57,896 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 00:35:57,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:35:58,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:35:58,101 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 00:35:58,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:35:58,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1974719436, now seen corresponding path program 1 times [2023-11-29 00:35:58,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:35:58,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003597459] [2023-11-29 00:35:58,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:35:58,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:35:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:35:58,156 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:35:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:35:58,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:35:58,217 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 00:35:58,218 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 00:35:58,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 00:35:58,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 00:35:58,224 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-29 00:35:58,228 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 00:35:58,246 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-29 00:35:58,247 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-29 00:35:58,248 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-29 00:35:58,248 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-29 00:35:58,249 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated [2023-11-29 00:35:58,249 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated [2023-11-29 00:35:58,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 12:35:58 BoogieIcfgContainer [2023-11-29 00:35:58,258 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 00:35:58,259 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:35:58,259 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:35:58,259 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:35:58,260 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:35:53" (3/4) ... [2023-11-29 00:35:58,261 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-29 00:35:58,267 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-29 00:35:58,267 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-29 00:35:58,268 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-29 00:35:58,268 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-29 00:35:58,268 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated [2023-11-29 00:35:58,268 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated [2023-11-29 00:35:58,305 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 00:35:58,305 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:35:58,306 INFO L158 Benchmark]: Toolchain (without parser) took 5806.32ms. Allocated memory was 174.1MB in the beginning and 251.7MB in the end (delta: 77.6MB). Free memory was 137.1MB in the beginning and 204.0MB in the end (delta: -66.8MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2023-11-29 00:35:58,306 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:35:58,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.41ms. Allocated memory is still 174.1MB. Free memory was 136.8MB in the beginning and 137.8MB in the end (delta: -970.0kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 00:35:58,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.64ms. Allocated memory is still 174.1MB. Free memory was 137.8MB in the beginning and 136.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:35:58,307 INFO L158 Benchmark]: Boogie Preprocessor took 48.70ms. Allocated memory is still 174.1MB. Free memory was 136.2MB in the beginning and 134.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:35:58,308 INFO L158 Benchmark]: RCFGBuilder took 379.09ms. Allocated memory is still 174.1MB. Free memory was 133.7MB in the beginning and 118.7MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 00:35:58,308 INFO L158 Benchmark]: TraceAbstraction took 5034.53ms. Allocated memory was 174.1MB in the beginning and 251.7MB in the end (delta: 77.6MB). Free memory was 118.1MB in the beginning and 206.1MB in the end (delta: -88.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:35:58,309 INFO L158 Benchmark]: Witness Printer took 46.38ms. Allocated memory is still 251.7MB. Free memory was 206.1MB in the beginning and 204.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:35:58,311 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.41ms. Allocated memory is still 174.1MB. Free memory was 136.8MB in the beginning and 137.8MB in the end (delta: -970.0kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.64ms. Allocated memory is still 174.1MB. Free memory was 137.8MB in the beginning and 136.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.70ms. Allocated memory is still 174.1MB. Free memory was 136.2MB in the beginning and 134.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 379.09ms. Allocated memory is still 174.1MB. Free memory was 133.7MB in the beginning and 118.7MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5034.53ms. Allocated memory was 174.1MB in the beginning and 251.7MB in the end (delta: 77.6MB). Free memory was 118.1MB in the beginning and 206.1MB in the end (delta: -88.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 46.38ms. Allocated memory is still 251.7MB. Free memory was 206.1MB in the beginning and 204.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 17]: integer overflow possible integer overflow possible We found a FailurePath: [L32] int **data = malloc(4*sizeof(int*)); [L35] int *p0 = malloc(sizeof(int)); [L36] int *p1 = malloc(sizeof(int)); [L37] int *p2 = malloc(sizeof(int)); [L38] int *p3 = malloc(sizeof(int)); [L41] int i = __VERIFIER_nondet_int(); [L42] int upper = __VERIFIER_nondet_int(); [L44] COND FALSE !(i >= upper) [L47] *p0 = i [L48] *p3 = upper [L52] data[0] = p0 [L53] data[1] = p1 [L54] data[2] = p2 [L55] data[3] = p3 [L59] CALL chunk(data) VAL [data={-1:0}] [L9] EXPR data[0] [L9] int *p0 = data[0]; [L10] EXPR data[1] [L10] int *p1 = data[1]; [L11] EXPR data[2] [L11] int *p2 = data[2]; [L12] EXPR data[3] [L12] int *p3 = data[3]; [L14] EXPR \read(*p0) [L14] EXPR \read(*p3) VAL [data={-1:0}, data={-1:0}, p0={-3:0}, p1={-4:0}, p2={-5:0}, p3={-2:0}] [L14] COND FALSE !(*p0 >= *p3) [L17] EXPR \read(*p0) [L17] (*p0)++ [L17] (*p0)++ [L19] EXPR \read(*p3) [L19] *p2 = *p3 [L21] data[1] = malloc(sizeof(int*)) [L22] EXPR data[1] [L22] data[2] = data[1] [L23] EXPR data[2] [L23] data[3] = data[2] [L25] CALL chunk(data) VAL [data={-1:0}] [L9] EXPR data[0] [L9] int *p0 = data[0]; [L10] EXPR data[1] [L10] int *p1 = data[1]; [L11] EXPR data[2] [L11] int *p2 = data[2]; [L12] EXPR data[3] [L12] int *p3 = data[3]; [L14] EXPR \read(*p0) [L14] EXPR \read(*p3) VAL [data={-1:0}, data={-1:0}, p0={-3:0}, p1={-6:0}, p2={-6:0}, p3={-6:0}] [L14] COND FALSE !(*p0 >= *p3) [L17] EXPR \read(*p0) [L17] (*p0)++ VAL [data={-1:0}, data={-1:0}, p0={-3:0}, p1={-6:0}, p2={-6:0}, p3={-6:0}] - UnprovableResult [Line: 17]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 73 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 259 IncrementalHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 13 mSDtfsCounter, 259 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 29, 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 695 SizeOfPredicates, 24 NumberOfNonLiveVariables, 283 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 1/9 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-29 00:35:58,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_751a2eae-ca2d-47bb-9a0a-c83b0ca1b986/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)