./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound1.c --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_9f5472b2-ac56-4584-a85c-6b7a67125301/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5472b2-ac56-4584-a85c-6b7a67125301/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_9f5472b2-ac56-4584-a85c-6b7a67125301/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5472b2-ac56-4584-a85c-6b7a67125301/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5472b2-ac56-4584-a85c-6b7a67125301/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_9f5472b2-ac56-4584-a85c-6b7a67125301/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 028e685e2884f4921a1d3a5f17273c125157e1c3b8bccd76f295d2a14fe44019 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:39:16,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:39:16,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:39:16,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:39:16,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:39:16,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:39:16,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:39:16,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:39:16,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:39:16,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:39:16,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:39:16,183 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:39:16,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:39:16,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:39:16,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:39:16,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:39:16,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:39:16,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:39:16,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:39:16,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:39:16,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:39:16,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:39:16,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:39:16,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:39:16,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:39:16,209 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:39:16,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:39:16,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:39:16,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:39:16,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:39:16,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:39:16,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:39:16,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:39:16,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:39:16,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:39:16,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:39:16,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:39:16,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:39:16,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:39:16,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:39:16,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:39:16,223 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5472b2-ac56-4584-a85c-6b7a67125301/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:39:16,247 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:39:16,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:39:16,249 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:39:16,249 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:39:16,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:39:16,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:39:16,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:39:16,252 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:39:16,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:39:16,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:39:16,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:39:16,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:39:16,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:39:16,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:39:16,254 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:39:16,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:39:16,255 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:39:16,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:39:16,256 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:39:16,256 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:39:16,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:39:16,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:39:16,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:39:16,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:39:16,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:39:16,259 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:39:16,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:39:16,259 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:39:16,260 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_9f5472b2-ac56-4584-a85c-6b7a67125301/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5472b2-ac56-4584-a85c-6b7a67125301/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 028e685e2884f4921a1d3a5f17273c125157e1c3b8bccd76f295d2a14fe44019 [2021-11-23 01:39:16,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:39:16,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:39:16,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:39:16,593 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:39:16,595 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:39:16,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5472b2-ac56-4584-a85c-6b7a67125301/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound1.c [2021-11-23 01:39:16,675 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5472b2-ac56-4584-a85c-6b7a67125301/bin/ukojak-LBtLqBUTdQ/data/818ddc790/ff97848df0b7460cbf2c75dc0b30bfeb/FLAG13a4f611d [2021-11-23 01:39:17,162 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:39:17,164 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5472b2-ac56-4584-a85c-6b7a67125301/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound1.c [2021-11-23 01:39:17,171 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5472b2-ac56-4584-a85c-6b7a67125301/bin/ukojak-LBtLqBUTdQ/data/818ddc790/ff97848df0b7460cbf2c75dc0b30bfeb/FLAG13a4f611d [2021-11-23 01:39:17,533 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5472b2-ac56-4584-a85c-6b7a67125301/bin/ukojak-LBtLqBUTdQ/data/818ddc790/ff97848df0b7460cbf2c75dc0b30bfeb [2021-11-23 01:39:17,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:39:17,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:39:17,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:39:17,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:39:17,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:39:17,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:39:17" (1/1) ... [2021-11-23 01:39:17,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48d4a27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:17, skipping insertion in model container [2021-11-23 01:39:17,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:39:17" (1/1) ... [2021-11-23 01:39:17,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:39:17,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:39:17,756 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_9f5472b2-ac56-4584-a85c-6b7a67125301/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound1.c[537,550] [2021-11-23 01:39:17,785 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:39:17,800 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:39:17,818 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_9f5472b2-ac56-4584-a85c-6b7a67125301/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound1.c[537,550] [2021-11-23 01:39:17,837 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:39:17,854 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:39:17,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:17 WrapperNode [2021-11-23 01:39:17,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:39:17,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:39:17,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:39:17,858 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:39:17,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:17" (1/1) ... [2021-11-23 01:39:17,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:17" (1/1) ... [2021-11-23 01:39:17,914 INFO L137 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2021-11-23 01:39:17,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:39:17,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:39:17,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:39:17,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:39:17,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:17" (1/1) ... [2021-11-23 01:39:17,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:17" (1/1) ... [2021-11-23 01:39:17,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:17" (1/1) ... [2021-11-23 01:39:17,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:17" (1/1) ... [2021-11-23 01:39:17,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:17" (1/1) ... [2021-11-23 01:39:17,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:17" (1/1) ... [2021-11-23 01:39:17,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:17" (1/1) ... [2021-11-23 01:39:17,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:39:17,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:39:17,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:39:17,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:39:17,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:17" (1/1) ... [2021-11-23 01:39:17,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:39:17,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5472b2-ac56-4584-a85c-6b7a67125301/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:39:17,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5472b2-ac56-4584-a85c-6b7a67125301/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:39:18,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5472b2-ac56-4584-a85c-6b7a67125301/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:39:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:39:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:39:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:39:18,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:39:18,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:39:18,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:39:18,097 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:39:18,098 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:39:18,219 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:39:18,254 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:39:18,255 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 01:39:18,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:39:18 BoogieIcfgContainer [2021-11-23 01:39:18,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:39:18,258 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:39:18,258 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:39:18,269 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:39:18,269 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:39:18" (1/1) ... [2021-11-23 01:39:18,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:39:18,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:39:18,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2021-11-23 01:39:18,338 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2021-11-23 01:39:18,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:39:18,340 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:39:18,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:39:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:39:18,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:39:18,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:39:18,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2021-11-23 01:39:18,490 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2021-11-23 01:39:18,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:39:18,491 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:39:18,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:39:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:39:18,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:39:18,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:39:18,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 27 states and 45 transitions. [2021-11-23 01:39:18,692 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2021-11-23 01:39:18,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:39:18,702 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:39:18,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:39:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:39:18,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:39:19,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:39:19,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 47 transitions. [2021-11-23 01:39:19,017 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2021-11-23 01:39:19,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 01:39:19,018 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:39:19,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:39:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:39:19,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:39:19,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:39:19,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 55 transitions. [2021-11-23 01:39:19,515 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2021-11-23 01:39:19,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:39:19,516 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:39:19,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:39:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:39:19,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:39:19,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:39:19,808 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:39:20,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:39:20,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 38 states and 65 transitions. [2021-11-23 01:39:20,412 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 65 transitions. [2021-11-23 01:39:20,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 01:39:20,414 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:39:20,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:39:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:39:20,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 01:39:20,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:39:20,657 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:39:20,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:39:20,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 44 states and 80 transitions. [2021-11-23 01:39:20,951 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 80 transitions. [2021-11-23 01:39:20,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 01:39:20,952 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:39:20,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:39:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:39:21,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 01:39:21,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:39:21,167 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:39:32,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 01:39:32,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:39:32,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 35 states and 61 transitions. [2021-11-23 01:39:32,980 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 61 transitions. [2021-11-23 01:39:32,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:39:32,981 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:39:32,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:39:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:39:33,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 01:39:33,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:39:33,530 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:39:46,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 01:39:46,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:39:46,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 38 states and 70 transitions. [2021-11-23 01:39:46,917 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 70 transitions. [2021-11-23 01:39:46,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:39:46,918 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:39:46,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:39:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:39:46,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 01:39:46,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:39:47,375 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-23 01:39:48,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:39:48,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 38 states and 69 transitions. [2021-11-23 01:39:48,296 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 69 transitions. [2021-11-23 01:39:48,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:39:48,297 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:39:48,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:39:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:39:48,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 01:39:48,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:39:48,398 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-23 01:39:49,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:39:49,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 30 states and 41 transitions. [2021-11-23 01:39:49,601 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2021-11-23 01:39:49,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 01:39:49,603 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:39:49,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:39:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:39:49,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 01:39:49,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:39:49,834 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 01:39:52,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:39:52,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 34 states and 54 transitions. [2021-11-23 01:39:52,128 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 54 transitions. [2021-11-23 01:39:52,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 01:39:52,130 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:39:52,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:39:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:39:52,163 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:39:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:39:52,199 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 12 iterations. [2021-11-23 01:39:52,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:39:52 ImpRootNode [2021-11-23 01:39:52,235 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:39:52,236 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:39:52,236 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:39:52,236 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:39:52,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:39:18" (3/4) ... [2021-11-23 01:39:52,239 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 01:39:52,312 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5472b2-ac56-4584-a85c-6b7a67125301/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:39:52,312 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:39:52,314 INFO L158 Benchmark]: Toolchain (without parser) took 34776.00ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 75.1MB in the beginning and 66.1MB in the end (delta: 9.0MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. [2021-11-23 01:39:52,314 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 115.3MB. Free memory is still 91.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:39:52,315 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.28ms. Allocated memory is still 115.3MB. Free memory was 74.9MB in the beginning and 89.6MB in the end (delta: -14.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 01:39:52,316 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.91ms. Allocated memory is still 115.3MB. Free memory was 89.6MB in the beginning and 88.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:39:52,317 INFO L158 Benchmark]: Boogie Preprocessor took 32.94ms. Allocated memory is still 115.3MB. Free memory was 88.1MB in the beginning and 87.1MB in the end (delta: 957.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:39:52,317 INFO L158 Benchmark]: RCFGBuilder took 308.97ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 75.9MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 01:39:52,319 INFO L158 Benchmark]: CodeCheck took 33977.15ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 75.9MB in the beginning and 69.2MB in the end (delta: 6.7MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. [2021-11-23 01:39:52,319 INFO L158 Benchmark]: Witness Printer took 76.64ms. Allocated memory is still 142.6MB. Free memory was 69.2MB in the beginning and 66.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:39:52,324 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 33.9s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 769 SdHoareTripleChecker+Valid, 94.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 178 mSDsluCounter, 860 SdHoareTripleChecker+Invalid, 93.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 282 mSDsCounter, 537 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1606 IncrementalHoareTripleChecker+Invalid, 2152 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 537 mSolverCounterUnsat, 578 mSDtfsCounter, 1606 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2202 GetRequests, 2027 SyntacticMatches, 15 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10506 ImplicationChecksByTransitivity, 11.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 245 NumberOfCodeBlocks, 245 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 202 ConstructedInterpolants, 0 QuantifiedInterpolants, 570 SizeOfPredicates, 9 NumberOfNonLiveVariables, 630 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 136/138 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: 17]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L22] int counter = 0; [L24] unsigned int A, B; [L25] unsigned int r, d, p, q; [L26] A = __VERIFIER_nondet_uint() [L27] B = __VERIFIER_nondet_uint() [L28] CALL assume_abort_if_not(B >= 1) [L12] COND FALSE !(!cond) [L28] RET assume_abort_if_not(B >= 1) [L30] r = A [L31] d = B [L32] p = 1 [L33] q = 0 VAL [A=4294967297, B=-4294967295, counter=0, d=-4294967295, p=1, q=0, r=4294967297] [L35] EXPR counter++ VAL [A=4294967297, B=-4294967295, counter=1, counter++=0, d=-4294967295, p=1, q=0, r=4294967297] [L35] COND TRUE counter++<1 [L36] CALL __VERIFIER_assert(q == 0) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L36] RET __VERIFIER_assert(q == 0) VAL [A=4294967297, B=-4294967295, counter=1, d=-4294967295, p=1, q=0, r=4294967297] [L37] CALL __VERIFIER_assert(r == A) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L37] RET __VERIFIER_assert(r == A) VAL [A=4294967297, B=-4294967295, counter=1, d=-4294967295, p=1, q=0, r=4294967297] [L38] CALL __VERIFIER_assert(d == B * p) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L38] RET __VERIFIER_assert(d == B * p) VAL [A=4294967297, B=-4294967295, counter=1, d=-4294967295, p=1, q=0, r=4294967297] [L39] COND FALSE !(!(r >= d)) [L41] d = 2 * d [L42] p = 2 * p VAL [A=4294967297, B=-4294967295, counter=1, d=-8589934590, p=2, q=0, r=4294967297] [L35] EXPR counter++ VAL [A=4294967297, B=-4294967295, counter=2, counter++=1, d=-8589934590, p=2, q=0, r=4294967297] [L35] COND FALSE !(counter++<1) [L45] EXPR counter++ VAL [A=4294967297, B=-4294967295, counter=3, counter++=2, d=-8589934590, p=2, q=0, r=4294967297] [L45] COND FALSE !(counter++<1) [L59] CALL __VERIFIER_assert(A == d*q + r) VAL [\old(cond)=1, counter=3] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=3] [L59] RET __VERIFIER_assert(A == d*q + r) VAL [A=4294967297, B=-4294967295, counter=3, d=-8589934590, p=2, q=0, r=4294967297] [L60] CALL __VERIFIER_assert(B == d) VAL [\old(cond)=0, counter=3] [L15] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=3] [L17] reach_error() VAL [\old(cond)=0, cond=0, counter=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 115.3MB. Free memory is still 91.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.28ms. Allocated memory is still 115.3MB. Free memory was 74.9MB in the beginning and 89.6MB in the end (delta: -14.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.91ms. Allocated memory is still 115.3MB. Free memory was 89.6MB in the beginning and 88.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.94ms. Allocated memory is still 115.3MB. Free memory was 88.1MB in the beginning and 87.1MB in the end (delta: 957.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 308.97ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 75.9MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 33977.15ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 75.9MB in the beginning and 69.2MB in the end (delta: 6.7MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. * Witness Printer took 76.64ms. Allocated memory is still 142.6MB. Free memory was 69.2MB in the beginning and 66.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 01:39:52,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5472b2-ac56-4584-a85c-6b7a67125301/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE