./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --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 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:42:09,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:42:09,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:42:09,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:42:09,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:42:09,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:42:09,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:42:09,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:42:09,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:42:09,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:42:09,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:42:09,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:42:09,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:42:09,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:42:09,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:42:09,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:42:09,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:42:09,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:42:09,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:42:09,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:42:09,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:42:09,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:42:09,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:42:09,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:42:09,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:42:09,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:42:09,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:42:09,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:42:09,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:42:09,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:42:09,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:42:09,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:42:09,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:42:09,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:42:09,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:42:09,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:42:09,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:42:09,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:42:09,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:42:09,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:42:09,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:42:09,311 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-18 19:42:09,341 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:42:09,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:42:09,342 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:42:09,342 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:42:09,343 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:42:09,344 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:42:09,345 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:42:09,345 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:42:09,345 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:42:09,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:42:09,346 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:42:09,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:42:09,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:42:09,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:42:09,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:42:09,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:42:09,348 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 19:42:09,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:42:09,349 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:42:09,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:42:09,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:42:09,350 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:42:09,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:42:09,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:42:09,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:42:09,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:42:09,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:42:09,352 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:42:09,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:42:09,352 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:42:09,353 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:42:09,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:42:09,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac [2022-11-18 19:42:09,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:42:09,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:42:09,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:42:09,727 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:42:09,728 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:42:09,729 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2022-11-18 19:42:09,865 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/data/d4c2fefb5/a709d8bb2419437e896b166a4ab355e0/FLAG3a7f88402 [2022-11-18 19:42:10,446 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:42:10,447 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2022-11-18 19:42:10,456 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/data/d4c2fefb5/a709d8bb2419437e896b166a4ab355e0/FLAG3a7f88402 [2022-11-18 19:42:10,799 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/data/d4c2fefb5/a709d8bb2419437e896b166a4ab355e0 [2022-11-18 19:42:10,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:42:10,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:42:10,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:42:10,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:42:10,816 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:42:10,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:42:10" (1/1) ... [2022-11-18 19:42:10,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3072d57f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:10, skipping insertion in model container [2022-11-18 19:42:10,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:42:10" (1/1) ... [2022-11-18 19:42:10,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:42:10,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:42:11,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:42:11,120 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:42:11,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:42:11,168 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:42:11,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:11 WrapperNode [2022-11-18 19:42:11,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:42:11,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:42:11,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:42:11,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:42:11,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:11" (1/1) ... [2022-11-18 19:42:11,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:11" (1/1) ... [2022-11-18 19:42:11,219 INFO L138 Inliner]: procedures = 11, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-11-18 19:42:11,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:42:11,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:42:11,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:42:11,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:42:11,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:11" (1/1) ... [2022-11-18 19:42:11,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:11" (1/1) ... [2022-11-18 19:42:11,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:11" (1/1) ... [2022-11-18 19:42:11,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:11" (1/1) ... [2022-11-18 19:42:11,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:11" (1/1) ... [2022-11-18 19:42:11,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:11" (1/1) ... [2022-11-18 19:42:11,262 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:11" (1/1) ... [2022-11-18 19:42:11,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:11" (1/1) ... [2022-11-18 19:42:11,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:42:11,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:42:11,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:42:11,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:42:11,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:11" (1/1) ... [2022-11-18 19:42:11,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:42:11,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:42:11,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:42:11,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:42:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:42:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:42:11,390 INFO L130 BoogieDeclarations]: Found specification of procedure chunk [2022-11-18 19:42:11,390 INFO L138 BoogieDeclarations]: Found implementation of procedure chunk [2022-11-18 19:42:11,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:42:11,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:42:11,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:42:11,489 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:42:11,492 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:42:11,626 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:42:11,632 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:42:11,632 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:42:11,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:42:11 BoogieIcfgContainer [2022-11-18 19:42:11,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:42:11,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:42:11,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:42:11,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:42:11,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:42:10" (1/3) ... [2022-11-18 19:42:11,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762c0365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:42:11, skipping insertion in model container [2022-11-18 19:42:11,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:42:11" (2/3) ... [2022-11-18 19:42:11,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762c0365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:42:11, skipping insertion in model container [2022-11-18 19:42:11,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:42:11" (3/3) ... [2022-11-18 19:42:11,646 INFO L112 eAbstractionObserver]: Analyzing ICFG chunk1-2.i [2022-11-18 19:42:11,670 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:42:11,670 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 19:42:11,776 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:42:11,787 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=LoopsAndPotentialCycles, 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;@1e23f8c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:42:11,793 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 19:42:11,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 14 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) [2022-11-18 19:42:11,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 19:42:11,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:42:11,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:42:11,818 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 19:42:11,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:11,835 INFO L85 PathProgramCache]: Analyzing trace with hash -990003817, now seen corresponding path program 1 times [2022-11-18 19:42:11,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:11,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847442277] [2022-11-18 19:42:11,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:11,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:12,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:42:12,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:12,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847442277] [2022-11-18 19:42:12,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847442277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:42:12,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:42:12,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:42:12,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225629734] [2022-11-18 19:42:12,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:42:12,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:42:12,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:12,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:42:12,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:42:12,620 INFO L87 Difference]: Start difference. First operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 14 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 1.2) internal successors, (6), 6 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) [2022-11-18 19:42:12,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:42:12,771 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2022-11-18 19:42:12,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:42:12,775 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.2) internal successors, (6), 6 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 [2022-11-18 19:42:12,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:42:12,783 INFO L225 Difference]: With dead ends: 27 [2022-11-18 19:42:12,783 INFO L226 Difference]: Without dead ends: 16 [2022-11-18 19:42:12,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:42:12,791 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 20 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:42:12,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 58 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:42:12,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-18 19:42:12,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2022-11-18 19:42:12,831 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) [2022-11-18 19:42:12,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-11-18 19:42:12,833 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2022-11-18 19:42:12,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:42:12,834 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-11-18 19:42:12,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.2) internal successors, (6), 6 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) [2022-11-18 19:42:12,835 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-11-18 19:42:12,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 19:42:12,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:42:12,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:42:12,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:42:12,837 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 19:42:12,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:12,838 INFO L85 PathProgramCache]: Analyzing trace with hash -625347217, now seen corresponding path program 1 times [2022-11-18 19:42:12,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:12,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605162678] [2022-11-18 19:42:12,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:12,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:12,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:13,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:42:13,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:13,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605162678] [2022-11-18 19:42:13,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605162678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:42:13,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:42:13,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:42:13,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710857462] [2022-11-18 19:42:13,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:42:13,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:42:13,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:13,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:42:13,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:42:13,048 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 7 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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) [2022-11-18 19:42:13,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:42:13,130 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-11-18 19:42:13,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:42:13,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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 8 [2022-11-18 19:42:13,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:42:13,132 INFO L225 Difference]: With dead ends: 14 [2022-11-18 19:42:13,132 INFO L226 Difference]: Without dead ends: 13 [2022-11-18 19:42:13,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:42:13,135 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:42:13,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 12 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:42:13,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-18 19:42:13,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-18 19:42:13,142 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) [2022-11-18 19:42:13,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-11-18 19:42:13,143 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 8 [2022-11-18 19:42:13,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:42:13,144 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-11-18 19:42:13,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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) [2022-11-18 19:42:13,145 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-11-18 19:42:13,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 19:42:13,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:42:13,146 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:42:13,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:42:13,146 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 19:42:13,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:13,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1491874426, now seen corresponding path program 1 times [2022-11-18 19:42:13,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:13,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367242918] [2022-11-18 19:42:13,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:13,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:14,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:42:14,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:14,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367242918] [2022-11-18 19:42:14,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367242918] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:42:14,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385542857] [2022-11-18 19:42:14,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:14,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:42:14,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:42:14,137 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:42:14,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:42:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:14,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-18 19:42:14,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:42:14,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:42:14,388 INFO L350 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-18 19:42:14,587 INFO L350 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 19 treesize of output 18 [2022-11-18 19:42:14,722 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:42:14,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 12 [2022-11-18 19:42:14,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:42:14,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:42:15,053 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:42:15,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385542857] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:42:15,055 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:42:15,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 9] total 21 [2022-11-18 19:42:15,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788553462] [2022-11-18 19:42:15,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:42:15,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 19:42:15,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:15,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 19:42:15,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-11-18 19:42:15,060 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 22 states, 16 states have (on average 1.5625) internal successors, (25), 17 states have internal predecessors, (25), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:42:15,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:42:15,797 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-11-18 19:42:15,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:42:15,798 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 16 states have (on average 1.5625) internal successors, (25), 17 states have internal predecessors, (25), 6 states have call successors, (6), 5 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 12 [2022-11-18 19:42:15,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:42:15,799 INFO L225 Difference]: With dead ends: 14 [2022-11-18 19:42:15,799 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 19:42:15,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=163, Invalid=707, Unknown=0, NotChecked=0, Total=870 [2022-11-18 19:42:15,802 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:42:15,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 23 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:42:15,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 19:42:15,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 19:42:15,804 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) [2022-11-18 19:42:15,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 19:42:15,804 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-11-18 19:42:15,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:42:15,804 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:42:15,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 16 states have (on average 1.5625) internal successors, (25), 17 states have internal predecessors, (25), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:42:15,805 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 19:42:15,805 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 19:42:15,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-18 19:42:15,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-18 19:42:15,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:42:16,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:42:16,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 19:42:16,294 INFO L899 garLoopResultBuilder]: For program point chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2022-11-18 19:42:16,295 INFO L895 garLoopResultBuilder]: At program point L15(line 15) the Hoare annotation is: (let ((.cse8 (select |old(#memory_int)| |chunk_#in~data.base|))) (let ((.cse0 (select .cse8 |chunk_#in~data.offset|)) (.cse1 (select .cse8 12))) (or (and (not (= .cse0 .cse1)) (not (<= .cse0 2147483646))) (not (= |chunk_#in~data.offset| 0)) (not (<= 0 (+ .cse0 2147483648))) (not (<= .cse1 2147483647)) (let ((.cse6 (select |#memory_int| |chunk_#in~data.base|)) (.cse7 (select |#memory_int| chunk_~data.base))) (let ((.cse2 (select .cse7 chunk_~data.offset)) (.cse4 (select .cse6 12)) (.cse3 (select .cse7 12)) (.cse5 (select .cse6 |chunk_#in~data.offset|))) (and (<= 0 (+ 2147483648 .cse2)) (= chunk_~data.offset 0) (or (<= .cse2 2147483646) (= .cse3 .cse2)) (<= .cse4 2147483647) (or (<= .cse5 2147483646) (= .cse4 .cse5)) (<= .cse3 2147483647) (<= 0 (+ .cse5 2147483648)))))))) [2022-11-18 19:42:16,295 INFO L899 garLoopResultBuilder]: For program point chunkEXIT(lines 8 16) no Hoare annotation was computed. [2022-11-18 19:42:16,296 INFO L899 garLoopResultBuilder]: For program point chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2022-11-18 19:42:16,296 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2022-11-18 19:42:16,296 INFO L899 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2022-11-18 19:42:16,296 INFO L899 garLoopResultBuilder]: For program point chunkFINAL(lines 8 16) no Hoare annotation was computed. [2022-11-18 19:42:16,297 INFO L895 garLoopResultBuilder]: At program point chunkENTRY(lines 8 16) the Hoare annotation is: (let ((.cse10 (select |old(#memory_int)| |chunk_#in~data.base|)) (.cse9 (select |#memory_int| |chunk_#in~data.base|))) (let ((.cse2 (select .cse9 |chunk_#in~data.offset|)) (.cse4 (select .cse10 12)) (.cse3 (select .cse10 |chunk_#in~data.offset|))) (let ((.cse6 (not (= |chunk_#in~data.offset| 0))) (.cse7 (not (<= 0 (+ .cse3 2147483648)))) (.cse5 (not (<= .cse3 2147483646))) (.cse8 (not (<= .cse4 2147483647))) (.cse0 (select .cse9 12)) (.cse1 (<= .cse2 2147483646))) (and (or (and (<= .cse0 2147483647) (or .cse1 (= .cse0 .cse2)) (<= 0 (+ .cse2 2147483648))) (and (not (= .cse3 .cse4)) .cse5) .cse6 .cse7 .cse8) (or .cse6 .cse7 .cse5 .cse8 (and (not (= 2147483647 .cse4)) (not (< .cse3 2147483646))) (and (or (< .cse2 2147483646) (= 2147483647 .cse0)) .cse1)))))) [2022-11-18 19:42:16,297 INFO L899 garLoopResultBuilder]: For program point L9(lines 9 10) no Hoare annotation was computed. [2022-11-18 19:42:16,297 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 19:42:16,297 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 19:42:16,298 INFO L895 garLoopResultBuilder]: At program point L30(line 30) the Hoare annotation is: (let ((.cse2 (select |#memory_int| |ULTIMATE.start_main_~data~0#1.base|))) (let ((.cse1 (select .cse2 |ULTIMATE.start_main_~data~0#1.offset|)) (.cse0 (select .cse2 (+ 12 |ULTIMATE.start_main_~data~0#1.offset|)))) (and (<= .cse0 2147483647) (<= |ULTIMATE.start_main_~upper~0#1| 2147483647) (= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (<= 0 (+ .cse1 2147483648)) (<= .cse1 2147483646) (or (< .cse1 2147483646) (= 2147483647 .cse0))))) [2022-11-18 19:42:16,298 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 19:42:16,298 INFO L895 garLoopResultBuilder]: At program point L30-1(lines 19 33) the Hoare annotation is: (<= |ULTIMATE.start_main_~upper~0#1| 2147483647) [2022-11-18 19:42:16,298 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 19:42:16,299 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 26) no Hoare annotation was computed. [2022-11-18 19:42:16,303 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-18 19:42:16,306 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:42:16,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:42:16 BoogieIcfgContainer [2022-11-18 19:42:16,322 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:42:16,323 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:42:16,323 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:42:16,323 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:42:16,324 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:42:11" (3/4) ... [2022-11-18 19:42:16,328 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 19:42:16,336 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure chunk [2022-11-18 19:42:16,341 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-18 19:42:16,341 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 19:42:16,342 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:42:16,342 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:42:16,382 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:42:16,382 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:42:16,383 INFO L158 Benchmark]: Toolchain (without parser) took 5576.78ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 115.8MB in the beginning and 67.1MB in the end (delta: 48.7MB). Peak memory consumption was 81.6MB. Max. memory is 16.1GB. [2022-11-18 19:42:16,384 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 48.0MB in the beginning and 48.0MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:42:16,384 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.30ms. Allocated memory is still 148.9MB. Free memory was 115.5MB in the beginning and 125.2MB in the end (delta: -9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:42:16,385 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.19ms. Allocated memory is still 148.9MB. Free memory was 125.2MB in the beginning and 124.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:42:16,385 INFO L158 Benchmark]: Boogie Preprocessor took 52.57ms. Allocated memory is still 148.9MB. Free memory was 124.0MB in the beginning and 122.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:42:16,386 INFO L158 Benchmark]: RCFGBuilder took 360.83ms. Allocated memory is still 148.9MB. Free memory was 122.6MB in the beginning and 113.0MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:42:16,386 INFO L158 Benchmark]: TraceAbstraction took 4684.90ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 112.2MB in the beginning and 69.2MB in the end (delta: 43.0MB). Peak memory consumption was 76.2MB. Max. memory is 16.1GB. [2022-11-18 19:42:16,387 INFO L158 Benchmark]: Witness Printer took 59.49ms. Allocated memory is still 180.4MB. Free memory was 69.2MB in the beginning and 67.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:42:16,389 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 48.0MB in the beginning and 48.0MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.30ms. Allocated memory is still 148.9MB. Free memory was 115.5MB in the beginning and 125.2MB in the end (delta: -9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.19ms. Allocated memory is still 148.9MB. Free memory was 125.2MB in the beginning and 124.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.57ms. Allocated memory is still 148.9MB. Free memory was 124.0MB in the beginning and 122.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 360.83ms. Allocated memory is still 148.9MB. Free memory was 122.6MB in the beginning and 113.0MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4684.90ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 112.2MB in the beginning and 69.2MB in the end (delta: 43.0MB). Peak memory consumption was 76.2MB. Max. memory is 16.1GB. * Witness Printer took 59.49ms. Allocated memory is still 180.4MB. Free memory was 69.2MB in the beginning and 67.1MB 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.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: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 54 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 93 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 150 IncrementalHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 20 mSDtfsCounter, 150 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 26, 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 6 PreInvPairs, 7 NumberOfFragments, 327 HoareAnnotationTreeSize, 6 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 151 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 489 SizeOfPredicates, 11 NumberOfNonLiveVariables, 77 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 2/9 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: upper <= 2147483647 RESULT: Ultimate proved your program to be correct! [2022-11-18 19:42:16,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0412c6-1ae6-424e-93b0-61d1c99e205d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE