./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/string-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/string-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd601fa28543c13c2fbec075867019b65bb9d0c4bbf720a0162dbf887aa47892 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:06:40,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:06:40,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:06:40,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:06:40,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:06:40,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:06:40,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:06:40,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:06:40,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:06:40,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:06:40,603 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:06:40,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:06:40,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:06:40,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:06:40,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:06:40,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:06:40,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:06:40,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:06:40,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:06:40,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:06:40,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:06:40,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:06:40,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:06:40,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:06:40,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:06:40,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:06:40,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:06:40,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:06:40,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:06:40,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:06:40,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:06:40,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:06:40,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:06:40,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:06:40,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:06:40,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:06:40,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:06:40,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:06:40,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:06:40,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:06:40,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:06:40,644 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:06:40,672 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:06:40,673 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:06:40,674 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:06:40,674 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:06:40,675 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:06:40,675 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:06:40,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:06:40,676 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:06:40,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:06:40,676 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:06:40,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:06:40,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:06:40,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:06:40,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:06:40,678 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:06:40,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:06:40,678 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:06:40,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:06:40,679 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:06:40,679 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:06:40,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:06:40,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:06:40,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:06:40,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:06:40,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:06:40,681 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:06:40,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:06:40,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:06:40,682 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_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd601fa28543c13c2fbec075867019b65bb9d0c4bbf720a0162dbf887aa47892 [2021-11-22 23:06:40,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:06:40,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:06:40,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:06:40,963 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:06:40,965 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:06:40,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/loops/string-2.i [2021-11-22 23:06:41,046 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/data/d9218a756/a5881a170c694a468417c64d0dca7a37/FLAG77e1ec744 [2021-11-22 23:06:41,534 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:06:41,535 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/sv-benchmarks/c/loops/string-2.i [2021-11-22 23:06:41,542 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/data/d9218a756/a5881a170c694a468417c64d0dca7a37/FLAG77e1ec744 [2021-11-22 23:06:41,917 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/data/d9218a756/a5881a170c694a468417c64d0dca7a37 [2021-11-22 23:06:41,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:06:41,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:06:41,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:06:41,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:06:41,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:06:41,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:06:41" (1/1) ... [2021-11-22 23:06:41,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@774997f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:41, skipping insertion in model container [2021-11-22 23:06:41,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:06:41" (1/1) ... [2021-11-22 23:06:41,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:06:41,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:06:42,149 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/sv-benchmarks/c/loops/string-2.i[896,909] [2021-11-22 23:06:42,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:06:42,183 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:06:42,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/sv-benchmarks/c/loops/string-2.i[896,909] [2021-11-22 23:06:42,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:06:42,227 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:06:42,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:42 WrapperNode [2021-11-22 23:06:42,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:06:42,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:06:42,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:06:42,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:06:42,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:42" (1/1) ... [2021-11-22 23:06:42,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:42" (1/1) ... [2021-11-22 23:06:42,274 INFO L137 Inliner]: procedures = 17, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 126 [2021-11-22 23:06:42,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:06:42,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:06:42,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:06:42,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:06:42,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:42" (1/1) ... [2021-11-22 23:06:42,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:42" (1/1) ... [2021-11-22 23:06:42,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:42" (1/1) ... [2021-11-22 23:06:42,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:42" (1/1) ... [2021-11-22 23:06:42,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:42" (1/1) ... [2021-11-22 23:06:42,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:42" (1/1) ... [2021-11-22 23:06:42,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:42" (1/1) ... [2021-11-22 23:06:42,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:06:42,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:06:42,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:06:42,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:06:42,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:42" (1/1) ... [2021-11-22 23:06:42,316 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:06:42,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:06:42,345 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:06:42,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:06:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:06:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:06:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 23:06:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 23:06:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:06:42,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:06:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 23:06:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:06:42,472 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:06:42,474 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:06:42,691 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:06:42,756 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:06:42,756 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-22 23:06:42,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:06:42 BoogieIcfgContainer [2021-11-22 23:06:42,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:06:42,760 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-22 23:06:42,760 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-22 23:06:42,772 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-22 23:06:42,772 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:06:42" (1/1) ... [2021-11-22 23:06:42,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:42,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:42,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 18 states and 28 transitions. [2021-11-22 23:06:42,845 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2021-11-22 23:06:42,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-22 23:06:42,848 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:42,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:43,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:06:43,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:43,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2021-11-22 23:06:43,120 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2021-11-22 23:06:43,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-22 23:06:43,121 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:43,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:43,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:06:43,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:43,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2021-11-22 23:06:43,304 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2021-11-22 23:06:43,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-22 23:06:43,305 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:43,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:43,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-22 23:06:43,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:43,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 21 states and 30 transitions. [2021-11-22 23:06:43,458 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2021-11-22 23:06:43,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-22 23:06:43,459 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:43,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:43,530 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-22 23:06:43,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:43,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2021-11-22 23:06:43,594 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2021-11-22 23:06:43,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-22 23:06:43,595 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:43,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:43,720 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-22 23:06:43,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:43,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 33 transitions. [2021-11-22 23:06:43,785 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2021-11-22 23:06:43,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-22 23:06:43,787 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:43,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:43,874 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-22 23:06:43,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:43,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2021-11-22 23:06:43,920 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2021-11-22 23:06:43,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-22 23:06:43,921 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:43,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:44,004 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-22 23:06:44,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:44,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 25 states and 34 transitions. [2021-11-22 23:06:44,083 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2021-11-22 23:06:44,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-22 23:06:44,084 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:44,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:44,144 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:06:44,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:44,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 26 states and 35 transitions. [2021-11-22 23:06:44,158 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2021-11-22 23:06:44,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-22 23:06:44,159 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:44,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:44,204 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:06:44,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:44,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 27 states and 36 transitions. [2021-11-22 23:06:44,220 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2021-11-22 23:06:44,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 23:06:44,221 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:44,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:44,267 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:06:44,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:44,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2021-11-22 23:06:44,299 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2021-11-22 23:06:44,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-22 23:06:44,300 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:44,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:06:44,335 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:06:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:06:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:06:44,504 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:06:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:06:44,602 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2021-11-22 23:06:44,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.11 11:06:44 ImpRootNode [2021-11-22 23:06:44,694 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-22 23:06:44,695 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 23:06:44,695 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 23:06:44,695 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 23:06:44,696 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:06:42" (3/4) ... [2021-11-22 23:06:44,700 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 23:06:44,701 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 23:06:44,703 INFO L158 Benchmark]: Toolchain (without parser) took 2779.74ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 69.1MB in the beginning and 84.7MB in the end (delta: -15.6MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2021-11-22 23:06:44,707 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 102.8MB. Free memory was 56.5MB in the beginning and 56.5MB in the end (delta: 42.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:06:44,710 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.07ms. Allocated memory is still 102.8MB. Free memory was 68.9MB in the beginning and 76.4MB in the end (delta: -7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 23:06:44,711 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.85ms. Allocated memory is still 102.8MB. Free memory was 76.4MB in the beginning and 74.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:06:44,712 INFO L158 Benchmark]: Boogie Preprocessor took 30.34ms. Allocated memory is still 102.8MB. Free memory was 74.7MB in the beginning and 73.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:06:44,713 INFO L158 Benchmark]: RCFGBuilder took 453.11ms. Allocated memory is still 102.8MB. Free memory was 73.4MB in the beginning and 60.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-22 23:06:44,715 INFO L158 Benchmark]: CodeCheck took 1934.07ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 60.5MB in the beginning and 84.7MB in the end (delta: -24.2MB). Peak memory consumption was 743.9kB. Max. memory is 16.1GB. [2021-11-22 23:06:44,715 INFO L158 Benchmark]: Witness Printer took 6.06ms. Allocated memory is still 123.7MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:06:44,721 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 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 452 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 160 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 207 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 287 IncrementalHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 207 mSolverCounterUnsat, 160 mSDtfsCounter, 287 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1296 GetRequests, 1258 SyntacticMatches, 16 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 207 NumberOfCodeBlocks, 207 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 233 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 60/100 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 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftLeft at line 69. Possible FailurePath: [L31] char string_A[5], string_B[5]; [L32] int i, j, nc_A, nc_B, found=0; [L35] i=0 VAL [found=0, i=0, string_A={21239:0}, string_B={21240:0}] [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ VAL [found=0, i=1, string_A={21239:0}, string_B={21240:0}] [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ VAL [found=0, i=2, string_A={21239:0}, string_B={21240:0}] [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ VAL [found=0, i=3, string_A={21239:0}, string_B={21240:0}] [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ VAL [found=0, i=4, string_A={21239:0}, string_B={21240:0}] [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ VAL [found=0, i=5, string_A={21239:0}, string_B={21240:0}] [L35] COND FALSE !(i<5) [L37] EXPR string_A[5 -1] VAL [found=0, i=5, string_A={21239:0}, string_A[5 -1]=0, string_B={21240:0}] [L37] COND FALSE !(!(string_A[5 -1]=='\0')) [L39] i=0 VAL [found=0, i=0, string_A={21239:0}, string_B={21240:0}] [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ VAL [found=0, i=1, string_A={21239:0}, string_B={21240:0}] [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ VAL [found=0, i=2, string_A={21239:0}, string_B={21240:0}] [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ VAL [found=0, i=3, string_A={21239:0}, string_B={21240:0}] [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ VAL [found=0, i=4, string_A={21239:0}, string_B={21240:0}] [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ VAL [found=0, i=5, string_A={21239:0}, string_B={21240:0}] [L39] COND FALSE !(i<5) [L41] EXPR string_B[5 -1] VAL [found=0, i=5, string_A={21239:0}, string_B={21240:0}, string_B[5 -1]=0] [L41] COND FALSE !(!(string_B[5 -1]=='\0')) [L43] nc_A = 0 VAL [found=0, i=5, nc_A=0, string_A={21239:0}, string_B={21240:0}] [L44] EXPR string_A[nc_A] VAL [found=0, i=5, nc_A=0, string_A={21239:0}, string_A[nc_A]=0, string_B={21240:0}] [L44] COND FALSE !(string_A[nc_A]!='\0') [L47] nc_B = 0 VAL [found=0, i=5, nc_A=0, nc_B=0, string_A={21239:0}, string_B={21240:0}] [L48] EXPR string_B[nc_B] VAL [found=0, i=5, nc_A=0, nc_B=0, string_A={21239:0}, string_B={21240:0}, string_B[nc_B]=0] [L48] COND FALSE !(string_B[nc_B]!='\0') [L51] COND FALSE !(!(nc_B >= nc_A)) [L54] EXPR j=0 [L54] i=j=0 VAL [found=0, i=0, j=0, nc_A=0, nc_B=0, string_A={21239:0}, string_B={21240:0}] [L55] COND FALSE !((inc_B-1)< main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ 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 ! call(reach_error())) ) 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 -> fd601fa28543c13c2fbec075867019b65bb9d0c4bbf720a0162dbf887aa47892 [2021-11-22 23:06:48,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:06:48,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:06:48,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:06:48,209 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:06:48,210 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:06:48,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/loops/string-2.i [2021-11-22 23:06:48,308 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/data/a8b075173/39644b018ed44155a32dc3c8b7022e24/FLAG9024af922 [2021-11-22 23:06:48,847 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:06:48,848 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/sv-benchmarks/c/loops/string-2.i [2021-11-22 23:06:48,857 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/data/a8b075173/39644b018ed44155a32dc3c8b7022e24/FLAG9024af922 [2021-11-22 23:06:49,218 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/data/a8b075173/39644b018ed44155a32dc3c8b7022e24 [2021-11-22 23:06:49,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:06:49,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:06:49,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:06:49,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:06:49,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:06:49,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:06:49" (1/1) ... [2021-11-22 23:06:49,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a5440a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:49, skipping insertion in model container [2021-11-22 23:06:49,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:06:49" (1/1) ... [2021-11-22 23:06:49,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:06:49,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:06:49,409 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/sv-benchmarks/c/loops/string-2.i[896,909] [2021-11-22 23:06:49,470 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:06:49,491 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:06:49,512 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/sv-benchmarks/c/loops/string-2.i[896,909] [2021-11-22 23:06:49,546 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:06:49,576 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:06:49,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:49 WrapperNode [2021-11-22 23:06:49,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:06:49,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:06:49,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:06:49,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:06:49,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:49" (1/1) ... [2021-11-22 23:06:49,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:49" (1/1) ... [2021-11-22 23:06:49,651 INFO L137 Inliner]: procedures = 17, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 124 [2021-11-22 23:06:49,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:06:49,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:06:49,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:06:49,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:06:49,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:49" (1/1) ... [2021-11-22 23:06:49,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:49" (1/1) ... [2021-11-22 23:06:49,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:49" (1/1) ... [2021-11-22 23:06:49,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:49" (1/1) ... [2021-11-22 23:06:49,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:49" (1/1) ... [2021-11-22 23:06:49,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:49" (1/1) ... [2021-11-22 23:06:49,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:49" (1/1) ... [2021-11-22 23:06:49,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:06:49,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:06:49,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:06:49,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:06:49,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:49" (1/1) ... [2021-11-22 23:06:49,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:06:49,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:06:49,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:06:49,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:06:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:06:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-22 23:06:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 23:06:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 23:06:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:06:49,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:06:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-22 23:06:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:06:49,952 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:06:49,955 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:06:50,281 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:06:50,322 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:06:50,323 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-22 23:06:50,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:06:50 BoogieIcfgContainer [2021-11-22 23:06:50,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:06:50,327 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-22 23:06:50,328 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-22 23:06:50,338 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-22 23:06:50,339 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:06:50" (1/1) ... [2021-11-22 23:06:50,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:50,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:50,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 18 states and 28 transitions. [2021-11-22 23:06:50,465 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2021-11-22 23:06:50,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-22 23:06:50,469 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:50,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:50,521 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Sort BitVec not declared at de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:419) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:228) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:228) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.NonDeclaringTermTransferrer.transferSort(NonDeclaringTermTransferrer.java:111) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.DeclarableSortSymbol.defineOrDeclare(DeclarableSortSymbol.java:79) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:171) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:196) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.SmtFunctionsAndAxioms.transferAllSymbols(SmtFunctionsAndAxioms.java:145) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.CfgSmtToolkit.createFreshManagedScript(CfgSmtToolkit.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:439) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-22 23:06:50,531 INFO L158 Benchmark]: Toolchain (without parser) took 1305.04ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 32.5MB in the beginning and 43.3MB in the end (delta: -10.8MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2021-11-22 23:06:50,532 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 54.5MB. Free memory is still 35.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:06:50,538 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.84ms. Allocated memory is still 54.5MB. Free memory was 32.4MB in the beginning and 36.3MB in the end (delta: -3.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-22 23:06:50,539 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.31ms. Allocated memory is still 54.5MB. Free memory was 36.3MB in the beginning and 34.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:06:50,540 INFO L158 Benchmark]: Boogie Preprocessor took 64.74ms. Allocated memory is still 54.5MB. Free memory was 34.5MB in the beginning and 33.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:06:50,541 INFO L158 Benchmark]: RCFGBuilder took 607.91ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 33.1MB in the beginning and 49.6MB in the end (delta: -16.5MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2021-11-22 23:06:50,542 INFO L158 Benchmark]: CodeCheck took 199.35ms. Allocated memory is still 71.3MB. Free memory was 49.3MB in the beginning and 43.3MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-22 23:06:50,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: SMTLIBException: Sort BitVec not declared de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: SMTLIBException: Sort BitVec not declared: de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:419) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 54.5MB. Free memory is still 35.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.84ms. Allocated memory is still 54.5MB. Free memory was 32.4MB in the beginning and 36.3MB in the end (delta: -3.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.31ms. Allocated memory is still 54.5MB. Free memory was 36.3MB in the beginning and 34.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.74ms. Allocated memory is still 54.5MB. Free memory was 34.5MB in the beginning and 33.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 607.91ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 33.1MB in the beginning and 49.6MB in the end (delta: -16.5MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * CodeCheck took 199.35ms. Allocated memory is still 71.3MB. Free memory was 49.3MB in the beginning and 43.3MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-22 23:06:50,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f20a078-68db-4127-bc0a-829ab9e1717c/bin/ukojak-LBtLqBUTdQ/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: ERROR: ExceptionOrErrorResult: SMTLIBException: Sort BitVec not declared