./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/memsafety-ext2/length_test03-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_750236b6-232a-4b68-913a-44b0b7ffa458/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_750236b6-232a-4b68-913a-44b0b7ffa458/bin/ukojak-jW3SillKbg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_750236b6-232a-4b68-913a-44b0b7ffa458/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_750236b6-232a-4b68-913a-44b0b7ffa458/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/memsafety-ext2/length_test03-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_750236b6-232a-4b68-913a-44b0b7ffa458/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_750236b6-232a-4b68-913a-44b0b7ffa458/bin/ukojak-jW3SillKbg --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d477dcc38abb71f88978d460e8393ef9ba09f24c134f3de362c4df2a3599c9a --- 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-b5237d8 [2022-11-21 23:56:33,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 23:56:33,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 23:56:33,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 23:56:33,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 23:56:33,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 23:56:33,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 23:56:33,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 23:56:33,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 23:56:33,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 23:56:33,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 23:56:33,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 23:56:33,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 23:56:33,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 23:56:33,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 23:56:33,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 23:56:33,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 23:56:33,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 23:56:33,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 23:56:33,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 23:56:33,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 23:56:33,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 23:56:33,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 23:56:33,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 23:56:33,645 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 23:56:33,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 23:56:33,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 23:56:33,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 23:56:33,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 23:56:33,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 23:56:33,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 23:56:33,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 23:56:33,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 23:56:33,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 23:56:33,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 23:56:33,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 23:56:33,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 23:56:33,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 23:56:33,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 23:56:33,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 23:56:33,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 23:56:33,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_750236b6-232a-4b68-913a-44b0b7ffa458/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-11-21 23:56:33,698 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 23:56:33,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 23:56:33,706 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 23:56:33,706 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 23:56:33,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 23:56:33,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 23:56:33,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 23:56:33,707 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 23:56:33,708 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 23:56:33,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 23:56:33,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 23:56:33,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 23:56:33,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 23:56:33,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 23:56:33,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 23:56:33,710 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 23:56:33,710 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 23:56:33,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 23:56:33,711 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 23:56:33,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 23:56:33,711 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 23:56:33,711 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 23:56:33,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 23:56:33,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:56:33,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 23:56:33,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 23:56:33,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 23:56:33,713 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 23:56:33,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 23:56:33,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 23:56:33,714 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_750236b6-232a-4b68-913a-44b0b7ffa458/bin/ukojak-jW3SillKbg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_750236b6-232a-4b68-913a-44b0b7ffa458/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d477dcc38abb71f88978d460e8393ef9ba09f24c134f3de362c4df2a3599c9a [2022-11-21 23:56:34,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 23:56:34,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 23:56:34,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 23:56:34,065 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 23:56:34,065 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 23:56:34,066 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_750236b6-232a-4b68-913a-44b0b7ffa458/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/memsafety-ext2/length_test03-2.i [2022-11-21 23:56:37,105 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 23:56:37,489 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 23:56:37,490 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_750236b6-232a-4b68-913a-44b0b7ffa458/sv-benchmarks/c/memsafety-ext2/length_test03-2.i [2022-11-21 23:56:37,515 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_750236b6-232a-4b68-913a-44b0b7ffa458/bin/ukojak-jW3SillKbg/data/833b4c497/ad768b9fc7894addbac88020bcf9cbe6/FLAG2438c9875 [2022-11-21 23:56:37,532 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_750236b6-232a-4b68-913a-44b0b7ffa458/bin/ukojak-jW3SillKbg/data/833b4c497/ad768b9fc7894addbac88020bcf9cbe6 [2022-11-21 23:56:37,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 23:56:37,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 23:56:37,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 23:56:37,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 23:56:37,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 23:56:37,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:56:37" (1/1) ... [2022-11-21 23:56:37,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20de8273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:56:37, skipping insertion in model container [2022-11-21 23:56:37,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:56:37" (1/1) ... [2022-11-21 23:56:37,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 23:56:37,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 23:56:38,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:56:38,119 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 23:56:38,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:56:38,224 INFO L208 MainTranslator]: Completed translation [2022-11-21 23:56:38,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:56:38 WrapperNode [2022-11-21 23:56:38,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 23:56:38,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 23:56:38,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 23:56:38,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 23:56:38,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:56:38" (1/1) ... [2022-11-21 23:56:38,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:56:38" (1/1) ... [2022-11-21 23:56:38,311 INFO L138 Inliner]: procedures = 123, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 89 [2022-11-21 23:56:38,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 23:56:38,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 23:56:38,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 23:56:38,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 23:56:38,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:56:38" (1/1) ... [2022-11-21 23:56:38,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:56:38" (1/1) ... [2022-11-21 23:56:38,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:56:38" (1/1) ... [2022-11-21 23:56:38,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:56:38" (1/1) ... [2022-11-21 23:56:38,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:56:38" (1/1) ... [2022-11-21 23:56:38,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:56:38" (1/1) ... [2022-11-21 23:56:38,374 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:56:38" (1/1) ... [2022-11-21 23:56:38,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:56:38" (1/1) ... [2022-11-21 23:56:38,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 23:56:38,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 23:56:38,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 23:56:38,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 23:56:38,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:56:38" (1/1) ... [2022-11-21 23:56:38,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:56:38,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_750236b6-232a-4b68-913a-44b0b7ffa458/bin/ukojak-jW3SillKbg/z3 [2022-11-21 23:56:38,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_750236b6-232a-4b68-913a-44b0b7ffa458/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 23:56:38,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_750236b6-232a-4b68-913a-44b0b7ffa458/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 23:56:38,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 23:56:38,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 23:56:38,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 23:56:38,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 23:56:38,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 23:56:38,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 23:56:38,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 23:56:38,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 23:56:38,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 23:56:38,468 INFO L130 BoogieDeclarations]: Found specification of procedure append [2022-11-21 23:56:38,468 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2022-11-21 23:56:38,573 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 23:56:38,589 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 23:56:39,030 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 23:56:39,177 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 23:56:39,182 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-21 23:56:39,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:56:39 BoogieIcfgContainer [2022-11-21 23:56:39,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 23:56:39,187 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 23:56:39,188 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 23:56:39,199 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 23:56:39,199 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:56:39" (1/1) ... [2022-11-21 23:56:39,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 23:56:39,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:56:39,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2022-11-21 23:56:39,290 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-11-21 23:56:39,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 23:56:39,296 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:56:39,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:56:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:56:39,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:56:39,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:56:39,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2022-11-21 23:56:39,576 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-11-21 23:56:39,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 23:56:39,577 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:56:39,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:56:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:56:39,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:56:40,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:56:40,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2022-11-21 23:56:40,186 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-11-21 23:56:40,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 23:56:40,187 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:56:40,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:56:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:56:40,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 23:56:40,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:56:40,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2022-11-21 23:56:40,704 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2022-11-21 23:56:40,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-21 23:56:40,706 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:56:40,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:56:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:56:41,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 23:56:41,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:56:41,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2022-11-21 23:56:41,128 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2022-11-21 23:56:41,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-21 23:56:41,130 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:56:41,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:56:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:56:41,491 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 23:56:41,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:56:41,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 28 states and 35 transitions. [2022-11-21 23:56:41,559 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2022-11-21 23:56:41,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-21 23:56:41,560 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:56:41,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:56:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:56:41,848 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-21 23:56:41,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:56:41,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 34 transitions. [2022-11-21 23:56:41,970 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2022-11-21 23:56:41,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-21 23:56:41,972 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:56:41,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:56:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:56:42,345 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-21 23:56:42,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:56:42,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 26 states and 31 transitions. [2022-11-21 23:56:42,670 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-11-21 23:56:42,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-21 23:56:42,670 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:56:42,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:56:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:56:43,021 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-21 23:56:43,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:56:43,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 28 states and 34 transitions. [2022-11-21 23:56:43,078 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-11-21 23:56:43,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-21 23:56:43,079 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:56:43,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:56:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:56:43,366 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-21 23:56:43,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:56:43,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 35 transitions. [2022-11-21 23:56:43,387 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-11-21 23:56:43,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-21 23:56:43,389 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:56:43,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:56:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:56:43,683 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-21 23:56:43,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:56:43,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 28 states and 34 transitions. [2022-11-21 23:56:43,752 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-11-21 23:56:43,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-21 23:56:43,753 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:56:43,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:56:43,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:56:44,117 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-21 23:56:44,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:56:44,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 33 states and 40 transitions. [2022-11-21 23:56:44,442 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2022-11-21 23:56:44,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-21 23:56:44,443 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:56:44,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:56:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:56:44,983 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-21 23:56:45,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:56:45,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 38 states and 46 transitions. [2022-11-21 23:56:45,355 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2022-11-21 23:56:45,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-21 23:56:45,355 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:56:45,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:56:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:56:46,050 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-21 23:56:46,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:56:46,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 43 states and 52 transitions. [2022-11-21 23:56:46,462 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2022-11-21 23:56:46,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-21 23:56:46,463 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:56:46,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:56:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:56:47,212 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-21 23:56:47,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:56:47,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 48 states and 57 transitions. [2022-11-21 23:56:47,545 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2022-11-21 23:56:47,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-21 23:56:47,546 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:56:47,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:56:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:56:48,226 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-21 23:56:48,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:56:48,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 47 states and 55 transitions. [2022-11-21 23:56:48,474 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2022-11-21 23:56:48,474 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 23:56:48,475 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 16 iterations. [2022-11-21 23:56:48,483 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-21 23:56:48,594 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 23:56:48,598 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2022-11-21 23:56:48,614 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 23:56:48,614 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 23:56:48,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 11:56:48 ImpRootNode [2022-11-21 23:56:48,616 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 23:56:48,617 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 23:56:48,617 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 23:56:48,617 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 23:56:48,618 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:56:39" (3/4) ... [2022-11-21 23:56:48,622 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 23:56:48,628 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure append [2022-11-21 23:56:48,636 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-21 23:56:48,636 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-21 23:56:48,636 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-21 23:56:48,637 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 23:56:48,697 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_750236b6-232a-4b68-913a-44b0b7ffa458/bin/ukojak-jW3SillKbg/witness.graphml [2022-11-21 23:56:48,697 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 23:56:48,698 INFO L158 Benchmark]: Toolchain (without parser) took 11159.94ms. Allocated memory was 148.9MB in the beginning and 385.9MB in the end (delta: 237.0MB). Free memory was 116.9MB in the beginning and 303.9MB in the end (delta: -187.0MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. [2022-11-21 23:56:48,698 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 148.9MB. Free memory was 120.1MB in the beginning and 119.8MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:56:48,699 INFO L158 Benchmark]: CACSL2BoogieTranslator took 684.56ms. Allocated memory is still 148.9MB. Free memory was 116.9MB in the beginning and 100.3MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 23:56:48,699 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.48ms. Allocated memory is still 148.9MB. Free memory was 99.9MB in the beginning and 98.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:56:48,699 INFO L158 Benchmark]: Boogie Preprocessor took 71.43ms. Allocated memory is still 148.9MB. Free memory was 98.1MB in the beginning and 95.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:56:48,700 INFO L158 Benchmark]: RCFGBuilder took 795.19ms. Allocated memory is still 148.9MB. Free memory was 95.9MB in the beginning and 71.5MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-21 23:56:48,700 INFO L158 Benchmark]: CodeCheck took 9429.45ms. Allocated memory was 148.9MB in the beginning and 385.9MB in the end (delta: 237.0MB). Free memory was 71.5MB in the beginning and 307.0MB in the end (delta: -235.5MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2022-11-21 23:56:48,701 INFO L158 Benchmark]: Witness Printer took 80.32ms. Allocated memory is still 385.9MB. Free memory was 307.0MB in the beginning and 303.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:56:48,703 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 22 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 9.2s, OverallIterations: 16, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 894 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 203 mSDsluCounter, 338 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 435 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1277 IncrementalHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 435 mSolverCounterUnsat, 338 mSDtfsCounter, 1277 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2598 GetRequests, 2502 SyntacticMatches, 10 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3284 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 412 NumberOfCodeBlocks, 412 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 397 ConstructedInterpolants, 0 QuantifiedInterpolants, 627 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 266/389 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 578]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 578]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 591]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 591]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 578]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 591]: Loop Invariant Derived loop invariant: c == 0 || 1 <= c - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 148.9MB. Free memory was 120.1MB in the beginning and 119.8MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 684.56ms. Allocated memory is still 148.9MB. Free memory was 116.9MB in the beginning and 100.3MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.48ms. Allocated memory is still 148.9MB. Free memory was 99.9MB in the beginning and 98.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.43ms. Allocated memory is still 148.9MB. Free memory was 98.1MB in the beginning and 95.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 795.19ms. Allocated memory is still 148.9MB. Free memory was 95.9MB in the beginning and 71.5MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 9429.45ms. Allocated memory was 148.9MB in the beginning and 385.9MB in the end (delta: 237.0MB). Free memory was 71.5MB in the beginning and 307.0MB in the end (delta: -235.5MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Witness Printer took 80.32ms. Allocated memory is still 385.9MB. Free memory was 307.0MB in the beginning and 303.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-21 23:56:48,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_750236b6-232a-4b68-913a-44b0b7ffa458/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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