./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-dietlibc/strtoull.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7aa3df1-4a68-4c66-8f33-171dfeb68f30/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7aa3df1-4a68-4c66-8f33-171dfeb68f30/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_b7aa3df1-4a68-4c66-8f33-171dfeb68f30/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7aa3df1-4a68-4c66-8f33-171dfeb68f30/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-dietlibc/strtoull.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7aa3df1-4a68-4c66-8f33-171dfeb68f30/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_b7aa3df1-4a68-4c66-8f33-171dfeb68f30/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 a24f374d1420975a1e7754ddde980f0b5d764d7e3a740acbfbc8098c38afffcd --- 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 22:44:14,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 22:44:14,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 22:44:14,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 22:44:14,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 22:44:14,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 22:44:14,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 22:44:14,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 22:44:14,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 22:44:14,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 22:44:14,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 22:44:14,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 22:44:14,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 22:44:14,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 22:44:14,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 22:44:14,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 22:44:14,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 22:44:14,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 22:44:14,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 22:44:14,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 22:44:14,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 22:44:14,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 22:44:14,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 22:44:14,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 22:44:14,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 22:44:14,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 22:44:14,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 22:44:14,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 22:44:14,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 22:44:14,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 22:44:14,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 22:44:14,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 22:44:14,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 22:44:14,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 22:44:14,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 22:44:14,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 22:44:14,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 22:44:14,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 22:44:14,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 22:44:14,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 22:44:14,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 22:44:14,158 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7aa3df1-4a68-4c66-8f33-171dfeb68f30/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-21 22:44:14,195 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 22:44:14,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 22:44:14,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 22:44:14,197 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 22:44:14,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 22:44:14,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 22:44:14,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 22:44:14,198 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 22:44:14,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 22:44:14,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 22:44:14,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 22:44:14,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 22:44:14,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 22:44:14,201 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 22:44:14,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 22:44:14,202 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 22:44:14,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 22:44:14,202 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 22:44:14,202 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 22:44:14,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 22:44:14,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:44:14,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 22:44:14,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 22:44:14,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 22:44:14,204 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 22:44:14,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 22:44:14,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 22:44:14,205 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_b7aa3df1-4a68-4c66-8f33-171dfeb68f30/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7aa3df1-4a68-4c66-8f33-171dfeb68f30/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a24f374d1420975a1e7754ddde980f0b5d764d7e3a740acbfbc8098c38afffcd [2022-11-21 22:44:14,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 22:44:14,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 22:44:14,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 22:44:14,548 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 22:44:14,548 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 22:44:14,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7aa3df1-4a68-4c66-8f33-171dfeb68f30/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/termination-dietlibc/strtoull.i [2022-11-21 22:44:17,527 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 22:44:17,813 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 22:44:17,814 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7aa3df1-4a68-4c66-8f33-171dfeb68f30/sv-benchmarks/c/termination-dietlibc/strtoull.i [2022-11-21 22:44:17,823 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7aa3df1-4a68-4c66-8f33-171dfeb68f30/bin/ukojak-jW3SillKbg/data/b69f098e0/e5dd192ce0e645cdbb7417b6934305e1/FLAGb18e3ea03 [2022-11-21 22:44:17,837 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7aa3df1-4a68-4c66-8f33-171dfeb68f30/bin/ukojak-jW3SillKbg/data/b69f098e0/e5dd192ce0e645cdbb7417b6934305e1 [2022-11-21 22:44:17,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 22:44:17,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 22:44:17,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 22:44:17,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 22:44:17,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 22:44:17,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:44:17" (1/1) ... [2022-11-21 22:44:17,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b0603e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:44:17, skipping insertion in model container [2022-11-21 22:44:17,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:44:17" (1/1) ... [2022-11-21 22:44:17,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 22:44:17,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 22:44:18,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 22:44:18,195 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 22:44:18,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 22:44:18,285 INFO L208 MainTranslator]: Completed translation [2022-11-21 22:44:18,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:44:18 WrapperNode [2022-11-21 22:44:18,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 22:44:18,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 22:44:18,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 22:44:18,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 22:44:18,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:44:18" (1/1) ... [2022-11-21 22:44:18,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:44:18" (1/1) ... [2022-11-21 22:44:18,338 INFO L138 Inliner]: procedures = 116, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 179 [2022-11-21 22:44:18,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 22:44:18,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 22:44:18,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 22:44:18,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 22:44:18,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:44:18" (1/1) ... [2022-11-21 22:44:18,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:44:18" (1/1) ... [2022-11-21 22:44:18,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:44:18" (1/1) ... [2022-11-21 22:44:18,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:44:18" (1/1) ... [2022-11-21 22:44:18,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:44:18" (1/1) ... [2022-11-21 22:44:18,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:44:18" (1/1) ... [2022-11-21 22:44:18,405 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:44:18" (1/1) ... [2022-11-21 22:44:18,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:44:18" (1/1) ... [2022-11-21 22:44:18,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 22:44:18,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 22:44:18,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 22:44:18,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 22:44:18,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:44:18" (1/1) ... [2022-11-21 22:44:18,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:44:18,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7aa3df1-4a68-4c66-8f33-171dfeb68f30/bin/ukojak-jW3SillKbg/z3 [2022-11-21 22:44:18,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7aa3df1-4a68-4c66-8f33-171dfeb68f30/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 22:44:18,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7aa3df1-4a68-4c66-8f33-171dfeb68f30/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 22:44:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 22:44:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 22:44:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 22:44:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 22:44:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 22:44:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 22:44:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 22:44:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 22:44:18,608 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 22:44:18,610 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 22:44:19,043 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 22:44:19,215 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 22:44:19,215 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-21 22:44:19,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:44:19 BoogieIcfgContainer [2022-11-21 22:44:19,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 22:44:19,219 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 22:44:19,219 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 22:44:19,237 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 22:44:19,237 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:44:19" (1/1) ... [2022-11-21 22:44:19,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 22:44:19,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:44:19,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 78 states and 93 transitions. [2022-11-21 22:44:19,310 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 93 transitions. [2022-11-21 22:44:19,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 22:44:19,312 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:44:19,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:44:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:44:19,508 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 22:44:19,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:44:19,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 79 states and 94 transitions. [2022-11-21 22:44:19,572 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 94 transitions. [2022-11-21 22:44:19,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 22:44:19,573 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:44:19,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:44:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:44:19,643 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 22:44:19,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:44:19,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 81 states and 97 transitions. [2022-11-21 22:44:19,686 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 97 transitions. [2022-11-21 22:44:19,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 22:44:19,687 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:44:19,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:44:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:44:19,765 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 22:44:19,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:44:19,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 84 states and 101 transitions. [2022-11-21 22:44:19,808 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 101 transitions. [2022-11-21 22:44:19,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 22:44:19,810 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:44:19,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:44:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:44:19,970 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 22:44:20,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:44:20,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 88 states and 109 transitions. [2022-11-21 22:44:20,155 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 109 transitions. [2022-11-21 22:44:20,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 22:44:20,161 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:44:20,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:44:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:44:20,216 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 22:44:20,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:44:20,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 91 states and 113 transitions. [2022-11-21 22:44:20,288 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 113 transitions. [2022-11-21 22:44:20,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 22:44:20,288 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:44:20,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:44:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:44:20,384 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 22:44:20,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:44:20,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 92 states and 116 transitions. [2022-11-21 22:44:20,417 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 116 transitions. [2022-11-21 22:44:20,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 22:44:20,417 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:44:20,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:44:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:44:20,483 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 22:44:20,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:44:20,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 94 states and 117 transitions. [2022-11-21 22:44:20,561 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 117 transitions. [2022-11-21 22:44:20,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 22:44:20,562 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:44:20,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:44:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:44:20,626 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 22:44:20,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:44:20,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 94 states and 116 transitions. [2022-11-21 22:44:20,717 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 116 transitions. [2022-11-21 22:44:20,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 22:44:20,719 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:44:20,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:44:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:44:20,861 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 22:44:21,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:44:21,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 98 states and 125 transitions. [2022-11-21 22:44:21,213 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 125 transitions. [2022-11-21 22:44:21,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 22:44:21,214 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:44:21,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:44:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:44:21,256 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 22:44:21,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:44:21,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 98 states and 124 transitions. [2022-11-21 22:44:21,269 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 124 transitions. [2022-11-21 22:44:21,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 22:44:21,270 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:44:21,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:44:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:44:21,305 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 22:44:21,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:44:21,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 99 states and 125 transitions. [2022-11-21 22:44:21,390 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 125 transitions. [2022-11-21 22:44:21,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 22:44:21,391 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:44:21,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:44:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:44:21,497 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 22:44:21,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:44:21,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 104 states and 132 transitions. [2022-11-21 22:44:21,825 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2022-11-21 22:44:21,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 22:44:21,826 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:44:21,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:44:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:44:21,909 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 22:44:21,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:44:21,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 103 states and 131 transitions. [2022-11-21 22:44:21,973 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 131 transitions. [2022-11-21 22:44:21,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 22:44:21,983 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:44:21,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:44:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:44:22,033 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 22:44:22,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:44:22,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 105 states and 133 transitions. [2022-11-21 22:44:22,246 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 133 transitions. [2022-11-21 22:44:22,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 22:44:22,247 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:44:22,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:44:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 22:44:22,294 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 22:44:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 22:44:22,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 22:44:22,404 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 22:44:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 22:44:22,467 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 15 iterations. [2022-11-21 22:44:22,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 10:44:22 ImpRootNode [2022-11-21 22:44:22,532 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 22:44:22,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 22:44:22,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 22:44:22,533 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 22:44:22,534 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:44:19" (3/4) ... [2022-11-21 22:44:22,535 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-21 22:44:22,629 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7aa3df1-4a68-4c66-8f33-171dfeb68f30/bin/ukojak-jW3SillKbg/witness.graphml [2022-11-21 22:44:22,638 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 22:44:22,639 INFO L158 Benchmark]: Toolchain (without parser) took 4799.06ms. Allocated memory is still 184.5MB. Free memory was 139.4MB in the beginning and 144.5MB in the end (delta: -5.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:44:22,639 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 121.6MB. Free memory was 87.8MB in the beginning and 87.7MB in the end (delta: 25.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:44:22,642 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.25ms. Allocated memory is still 184.5MB. Free memory was 139.4MB in the beginning and 122.0MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 22:44:22,643 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.80ms. Allocated memory is still 184.5MB. Free memory was 122.0MB in the beginning and 119.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 22:44:22,643 INFO L158 Benchmark]: Boogie Preprocessor took 61.70ms. Allocated memory is still 184.5MB. Free memory was 119.8MB in the beginning and 117.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 22:44:22,644 INFO L158 Benchmark]: RCFGBuilder took 807.91ms. Allocated memory is still 184.5MB. Free memory was 117.7MB in the beginning and 150.7MB in the end (delta: -33.0MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2022-11-21 22:44:22,646 INFO L158 Benchmark]: CodeCheck took 3313.76ms. Allocated memory is still 184.5MB. Free memory was 150.7MB in the beginning and 146.6MB in the end (delta: 4.1MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2022-11-21 22:44:22,650 INFO L158 Benchmark]: Witness Printer took 105.52ms. Allocated memory is still 184.5MB. Free memory was 146.6MB in the beginning and 144.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 22:44:22,652 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, 78 locations, 26 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, 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, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 450 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 1.9s 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, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s 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)={2:0}, i=0, in={2:0}, in_len=1] [L554] EXPR in_len-1 VAL [__builtin_alloca (in_len)={2:0}, i=0, in={2:0}, in_len=1] [L554] COND FALSE !(i