./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-dietlibc/strtoul.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57514ca-c9ec-4576-a479-e2745cf16391/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57514ca-c9ec-4576-a479-e2745cf16391/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_a57514ca-c9ec-4576-a479-e2745cf16391/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57514ca-c9ec-4576-a479-e2745cf16391/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-dietlibc/strtoul.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57514ca-c9ec-4576-a479-e2745cf16391/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57514ca-c9ec-4576-a479-e2745cf16391/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 64bit --witnessprinter.graph.data.programhash d4f351cb322dbf1a8c0048cd0e44aa29b2553ea539b13a26ee79638cd7ecc928 --- 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 22:25:06,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 22:25:06,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 22:25:06,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 22:25:06,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 22:25:06,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 22:25:06,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 22:25:06,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 22:25:06,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 22:25:06,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 22:25:06,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 22:25:06,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 22:25:06,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 22:25:06,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 22:25:06,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 22:25:06,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 22:25:06,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 22:25:06,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 22:25:06,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 22:25:06,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 22:25:06,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 22:25:06,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 22:25:06,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 22:25:06,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 22:25:06,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 22:25:06,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 22:25:06,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 22:25:06,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 22:25:06,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 22:25:06,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 22:25:06,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 22:25:06,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 22:25:06,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 22:25:06,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 22:25:06,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 22:25:06,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 22:25:06,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 22:25:06,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 22:25:06,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 22:25:06,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 22:25:06,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 22:25:06,156 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57514ca-c9ec-4576-a479-e2745cf16391/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-21 22:25:06,185 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 22:25:06,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 22:25:06,186 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 22:25:06,187 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 22:25:06,187 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 22:25:06,187 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 22:25:06,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 22:25:06,188 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 22:25:06,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 22:25:06,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 22:25:06,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 22:25:06,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 22:25:06,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 22:25:06,190 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 22:25:06,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 22:25:06,190 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 22:25:06,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 22:25:06,191 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 22:25:06,191 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 22:25:06,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 22:25:06,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:25:06,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 22:25:06,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 22:25:06,192 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 22:25:06,192 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 22:25:06,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 22:25:06,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 22:25:06,192 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_a57514ca-c9ec-4576-a479-e2745cf16391/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57514ca-c9ec-4576-a479-e2745cf16391/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4f351cb322dbf1a8c0048cd0e44aa29b2553ea539b13a26ee79638cd7ecc928 [2022-11-21 22:25:06,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 22:25:06,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 22:25:06,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 22:25:06,578 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 22:25:06,579 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 22:25:06,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57514ca-c9ec-4576-a479-e2745cf16391/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/termination-dietlibc/strtoul.i [2022-11-21 22:25:09,692 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 22:25:09,966 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 22:25:09,967 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57514ca-c9ec-4576-a479-e2745cf16391/sv-benchmarks/c/termination-dietlibc/strtoul.i [2022-11-21 22:25:09,979 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57514ca-c9ec-4576-a479-e2745cf16391/bin/ukojak-jW3SillKbg/data/6622414f9/42f0bf2e638845f884fbe66f76ed2344/FLAG296003b8e [2022-11-21 22:25:09,994 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57514ca-c9ec-4576-a479-e2745cf16391/bin/ukojak-jW3SillKbg/data/6622414f9/42f0bf2e638845f884fbe66f76ed2344 [2022-11-21 22:25:09,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 22:25:09,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 22:25:10,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 22:25:10,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 22:25:10,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 22:25:10,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:09" (1/1) ... [2022-11-21 22:25:10,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b12e3f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:10, skipping insertion in model container [2022-11-21 22:25:10,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:09" (1/1) ... [2022-11-21 22:25:10,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 22:25:10,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 22:25:10,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 22:25:10,445 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 22:25:10,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 22:25:10,511 INFO L208 MainTranslator]: Completed translation [2022-11-21 22:25:10,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:10 WrapperNode [2022-11-21 22:25:10,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 22:25:10,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 22:25:10,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 22:25:10,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 22:25:10,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:10" (1/1) ... [2022-11-21 22:25:10,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:10" (1/1) ... [2022-11-21 22:25:10,561 INFO L138 Inliner]: procedures = 116, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 167 [2022-11-21 22:25:10,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 22:25:10,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 22:25:10,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 22:25:10,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 22:25:10,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:10" (1/1) ... [2022-11-21 22:25:10,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:10" (1/1) ... [2022-11-21 22:25:10,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:10" (1/1) ... [2022-11-21 22:25:10,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:10" (1/1) ... [2022-11-21 22:25:10,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:10" (1/1) ... [2022-11-21 22:25:10,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:10" (1/1) ... [2022-11-21 22:25:10,588 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:10" (1/1) ... [2022-11-21 22:25:10,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:10" (1/1) ... [2022-11-21 22:25:10,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 22:25:10,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 22:25:10,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 22:25:10,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 22:25:10,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:10" (1/1) ... [2022-11-21 22:25:10,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:25:10,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57514ca-c9ec-4576-a479-e2745cf16391/bin/ukojak-jW3SillKbg/z3 [2022-11-21 22:25:10,625 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57514ca-c9ec-4576-a479-e2745cf16391/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 22:25:10,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57514ca-c9ec-4576-a479-e2745cf16391/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 22:25:10,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 22:25:10,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 22:25:10,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 22:25:10,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 22:25:10,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 22:25:10,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 22:25:10,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 22:25:10,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 22:25:10,789 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 22:25:10,791 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 22:25:11,169 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 22:25:11,311 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 22:25:11,311 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-21 22:25:11,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:11 BoogieIcfgContainer [2022-11-21 22:25:11,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 22:25:11,315 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 22:25:11,315 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 22:25:11,336 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 22:25:11,339 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:11" (1/1) ... [2022-11-21 22:25:11,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 22:25:11,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:11,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 60 states and 74 transitions. [2022-11-21 22:25:11,444 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2022-11-21 22:25:11,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 22:25:11,447 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:11,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:11,665 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 22:25:11,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:11,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 61 states and 75 transitions. [2022-11-21 22:25:11,723 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 75 transitions. [2022-11-21 22:25:11,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 22:25:11,723 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:11,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:11,812 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 22:25:11,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:11,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 63 states and 78 transitions. [2022-11-21 22:25:11,868 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions. [2022-11-21 22:25:11,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 22:25:11,869 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:11,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:11,949 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 22:25:11,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:11,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 66 states and 82 transitions. [2022-11-21 22:25:11,991 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 82 transitions. [2022-11-21 22:25:11,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 22:25:11,992 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:11,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:12,084 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 22:25:12,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:12,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 70 states and 90 transitions. [2022-11-21 22:25:12,341 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2022-11-21 22:25:12,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 22:25:12,349 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:12,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:12,423 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 22:25:12,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:12,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 73 states and 94 transitions. [2022-11-21 22:25:12,500 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 94 transitions. [2022-11-21 22:25:12,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 22:25:12,500 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:12,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:12,602 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 22:25:12,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:12,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 74 states and 97 transitions. [2022-11-21 22:25:12,634 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 97 transitions. [2022-11-21 22:25:12,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 22:25:12,634 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:12,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:12,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 22:25:12,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:12,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 76 states and 98 transitions. [2022-11-21 22:25:12,782 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2022-11-21 22:25:12,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 22:25:12,784 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:12,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:12,829 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 22:25:12,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:12,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 76 states and 97 transitions. [2022-11-21 22:25:12,935 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 97 transitions. [2022-11-21 22:25:12,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 22:25:12,937 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:12,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:13,045 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:25:13,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:13,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 80 states and 106 transitions. [2022-11-21 22:25:13,351 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 106 transitions. [2022-11-21 22:25:13,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 22:25:13,351 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:13,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:13,383 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 22:25:13,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:13,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 80 states and 105 transitions. [2022-11-21 22:25:13,391 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 105 transitions. [2022-11-21 22:25:13,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 22:25:13,392 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:13,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:13,415 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 22:25:13,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:13,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 81 states and 106 transitions. [2022-11-21 22:25:13,532 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 106 transitions. [2022-11-21 22:25:13,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 22:25:13,534 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:13,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:13,667 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:25:14,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:14,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 86 states and 113 transitions. [2022-11-21 22:25:14,003 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 113 transitions. [2022-11-21 22:25:14,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 22:25:14,003 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:14,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:14,073 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 22:25:14,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:14,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 85 states and 112 transitions. [2022-11-21 22:25:14,132 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 112 transitions. [2022-11-21 22:25:14,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 22:25:14,133 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:14,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:14,162 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-21 22:25:14,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:14,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 87 states and 114 transitions. [2022-11-21 22:25:14,381 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 114 transitions. [2022-11-21 22:25:14,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 22:25:14,381 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:14,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 22:25:14,401 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 22:25:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 22:25:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 22:25:14,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 22:25:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 22:25:14,506 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 15 iterations. [2022-11-21 22:25:14,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 10:25:14 ImpRootNode [2022-11-21 22:25:14,543 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 22:25:14,544 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 22:25:14,544 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 22:25:14,544 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 22:25:14,545 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:11" (3/4) ... [2022-11-21 22:25:14,547 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-21 22:25:14,593 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57514ca-c9ec-4576-a479-e2745cf16391/bin/ukojak-jW3SillKbg/witness.graphml [2022-11-21 22:25:14,594 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 22:25:14,595 INFO L158 Benchmark]: Toolchain (without parser) took 4595.70ms. Allocated memory was 136.3MB in the beginning and 176.2MB in the end (delta: 39.8MB). Free memory was 93.2MB in the beginning and 62.0MB in the end (delta: 31.2MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. [2022-11-21 22:25:14,595 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 107.0MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:25:14,596 INFO L158 Benchmark]: CACSL2BoogieTranslator took 511.75ms. Allocated memory is still 136.3MB. Free memory was 93.2MB in the beginning and 95.5MB in the end (delta: -2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 22:25:14,596 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.52ms. Allocated memory is still 136.3MB. Free memory was 95.5MB in the beginning and 92.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 22:25:14,597 INFO L158 Benchmark]: Boogie Preprocessor took 30.32ms. Allocated memory is still 136.3MB. Free memory was 92.9MB in the beginning and 91.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:25:14,597 INFO L158 Benchmark]: RCFGBuilder took 721.82ms. Allocated memory is still 136.3MB. Free memory was 91.4MB in the beginning and 67.1MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-21 22:25:14,598 INFO L158 Benchmark]: CodeCheck took 3228.48ms. Allocated memory was 136.3MB in the beginning and 176.2MB in the end (delta: 39.8MB). Free memory was 66.5MB in the beginning and 64.1MB in the end (delta: 2.4MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2022-11-21 22:25:14,599 INFO L158 Benchmark]: Witness Printer took 49.65ms. Allocated memory is still 176.2MB. Free memory was 64.1MB in the beginning and 62.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 22:25:14,602 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, 60 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 15, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 593 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 450 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 240 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1397 IncrementalHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 240 mSolverCounterUnsat, 61 mSDtfsCounter, 1397 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 955 GetRequests, 889 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1739 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 13/22 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 - CounterExampleResult [Line: 519]: integer overflow possible integer overflow possible We found a FailurePath: [L551] int in_len = __VERIFIER_nondet_int(); [L552] COND FALSE !(in_len < 1) [L553] char* in = __builtin_alloca (in_len); [L554] int i=0; VAL [__builtin_alloca (in_len)={3:0}, i=0, in={3:0}, in_len=1] [L554] EXPR in_len-1 VAL [__builtin_alloca (in_len)={3:0}, i=0, in={3:0}, in_len=1] [L554] COND FALSE !(i