./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf5ac167-0d84-4d92-8539-003dddd551da/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf5ac167-0d84-4d92-8539-003dddd551da/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf5ac167-0d84-4d92-8539-003dddd551da/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf5ac167-0d84-4d92-8539-003dddd551da/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf5ac167-0d84-4d92-8539-003dddd551da/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf5ac167-0d84-4d92-8539-003dddd551da/bin/ukojak-92XMlrwhuB --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 f5dead2b097a3e2aa15cd919ca1c3a66944ae841df5c6a1b5b64a326ca5f0b4a --- 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-dbf71c6-m [2022-10-17 16:45:37,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:45:37,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:45:37,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:45:37,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:45:37,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:45:37,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:45:37,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:45:37,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:45:37,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:45:37,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:45:37,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:45:37,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:45:37,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:45:37,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:45:37,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:45:37,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:45:37,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:45:37,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:45:37,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:45:37,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:45:37,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:45:37,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:45:37,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:45:37,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:45:37,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:45:37,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:45:37,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:45:37,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:45:37,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:45:37,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:45:37,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:45:37,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:45:37,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:45:37,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:45:37,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:45:37,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:45:37,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:45:37,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:45:37,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:45:37,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:45:37,298 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf5ac167-0d84-4d92-8539-003dddd551da/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:45:37,329 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:45:37,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:45:37,330 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:45:37,331 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:45:37,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:45:37,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:45:37,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:45:37,332 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:45:37,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:45:37,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:45:37,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:45:37,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:45:37,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:45:37,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:45:37,334 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:45:37,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:45:37,334 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:45:37,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:45:37,335 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:45:37,335 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:45:37,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:45:37,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:45:37,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:45:37,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:45:37,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:45:37,336 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:45:37,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:45:37,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:45:37,337 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_bf5ac167-0d84-4d92-8539-003dddd551da/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf5ac167-0d84-4d92-8539-003dddd551da/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5dead2b097a3e2aa15cd919ca1c3a66944ae841df5c6a1b5b64a326ca5f0b4a [2022-10-17 16:45:37,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:45:37,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:45:37,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:45:37,696 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:45:37,697 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:45:37,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf5ac167-0d84-4d92-8539-003dddd551da/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c [2022-10-17 16:45:37,788 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf5ac167-0d84-4d92-8539-003dddd551da/bin/ukojak-92XMlrwhuB/data/f8407648f/b22b1c1fb72840e68e5ab92f6635e3bf/FLAG42ea38f37 [2022-10-17 16:45:38,322 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:45:38,322 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf5ac167-0d84-4d92-8539-003dddd551da/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c [2022-10-17 16:45:38,329 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf5ac167-0d84-4d92-8539-003dddd551da/bin/ukojak-92XMlrwhuB/data/f8407648f/b22b1c1fb72840e68e5ab92f6635e3bf/FLAG42ea38f37 [2022-10-17 16:45:38,653 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf5ac167-0d84-4d92-8539-003dddd551da/bin/ukojak-92XMlrwhuB/data/f8407648f/b22b1c1fb72840e68e5ab92f6635e3bf [2022-10-17 16:45:38,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:45:38,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:45:38,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:45:38,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:45:38,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:45:38,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:45:38" (1/1) ... [2022-10-17 16:45:38,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6679187e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:38, skipping insertion in model container [2022-10-17 16:45:38,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:45:38" (1/1) ... [2022-10-17 16:45:38,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:45:38,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:45:38,880 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_bf5ac167-0d84-4d92-8539-003dddd551da/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c[597,610] [2022-10-17 16:45:38,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:45:38,909 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:45:38,923 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_bf5ac167-0d84-4d92-8539-003dddd551da/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c[597,610] [2022-10-17 16:45:38,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:45:38,946 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:45:38,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:38 WrapperNode [2022-10-17 16:45:38,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:45:38,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:45:38,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:45:38,948 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:45:38,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:38" (1/1) ... [2022-10-17 16:45:38,964 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:38" (1/1) ... [2022-10-17 16:45:38,984 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2022-10-17 16:45:38,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:45:38,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:45:38,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:45:38,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:45:38,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:38" (1/1) ... [2022-10-17 16:45:38,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:38" (1/1) ... [2022-10-17 16:45:38,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:38" (1/1) ... [2022-10-17 16:45:38,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:38" (1/1) ... [2022-10-17 16:45:39,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:38" (1/1) ... [2022-10-17 16:45:39,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:38" (1/1) ... [2022-10-17 16:45:39,007 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:38" (1/1) ... [2022-10-17 16:45:39,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:38" (1/1) ... [2022-10-17 16:45:39,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:45:39,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:45:39,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:45:39,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:45:39,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:38" (1/1) ... [2022-10-17 16:45:39,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:45:39,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf5ac167-0d84-4d92-8539-003dddd551da/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:45:39,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf5ac167-0d84-4d92-8539-003dddd551da/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:45:39,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf5ac167-0d84-4d92-8539-003dddd551da/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:45:39,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:45:39,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:45:39,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:45:39,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:45:39,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:45:39,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:45:39,194 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:45:39,197 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:45:39,366 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:45:39,408 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:45:39,408 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:45:39,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:45:39 BoogieIcfgContainer [2022-10-17 16:45:39,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:45:39,412 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:45:39,413 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:45:39,425 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:45:39,426 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:45:39" (1/1) ... [2022-10-17 16:45:39,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:45:39,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:39,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2022-10-17 16:45:39,504 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2022-10-17 16:45:39,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:45:39,507 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:39,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:39,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-17 16:45:39,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:45:39,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:40,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:40,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2022-10-17 16:45:40,124 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2022-10-17 16:45:40,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:45:40,128 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:40,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:40,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 16:45:40,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:45:40,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:40,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:40,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2022-10-17 16:45:40,562 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2022-10-17 16:45:40,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:45:40,566 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:40,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:40,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-17 16:45:40,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:45:40,801 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:41,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:41,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 39 transitions. [2022-10-17 16:45:41,074 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 39 transitions. [2022-10-17 16:45:41,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 16:45:41,076 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:41,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:41,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 16:45:41,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:45:41,198 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:42,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:42,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 25 states and 33 transitions. [2022-10-17 16:45:42,298 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2022-10-17 16:45:42,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-17 16:45:42,300 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:42,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:45:42,344 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:45:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:45:42,384 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2022-10-17 16:45:42,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:45:42 ImpRootNode [2022-10-17 16:45:42,426 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:45:42,427 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:45:42,427 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:45:42,427 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:45:42,428 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:45:39" (3/4) ... [2022-10-17 16:45:42,436 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:45:42,490 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf5ac167-0d84-4d92-8539-003dddd551da/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:45:42,491 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:45:42,492 INFO L158 Benchmark]: Toolchain (without parser) took 3834.09ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 54.5MB in the beginning and 94.1MB in the end (delta: -39.6MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-10-17 16:45:42,492 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 65.9MB in the beginning and 65.8MB in the end (delta: 25.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:45:42,493 INFO L158 Benchmark]: CACSL2BoogieTranslator took 281.15ms. Allocated memory is still 92.3MB. Free memory was 54.3MB in the beginning and 64.8MB in the end (delta: -10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:45:42,494 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.20ms. Allocated memory is still 92.3MB. Free memory was 64.8MB in the beginning and 63.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:45:42,495 INFO L158 Benchmark]: Boogie Preprocessor took 24.81ms. Allocated memory is still 92.3MB. Free memory was 63.2MB in the beginning and 62.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:45:42,495 INFO L158 Benchmark]: RCFGBuilder took 400.15ms. Allocated memory is still 92.3MB. Free memory was 62.1MB in the beginning and 50.1MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 16:45:42,496 INFO L158 Benchmark]: CodeCheck took 3013.92ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 50.1MB in the beginning and 39.7MB in the end (delta: 10.4MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2022-10-17 16:45:42,497 INFO L158 Benchmark]: Witness Printer took 63.89ms. Allocated memory is still 119.5MB. Free memory was 39.7MB in the beginning and 94.1MB in the end (delta: -54.4MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2022-10-17 16:45:42,501 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, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 73 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 219 IncrementalHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 61 mSDtfsCounter, 219 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 426 GetRequests, 366 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 201 SizeOfPredicates, 6 NumberOfNonLiveVariables, 256 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 6/7 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: 16]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L21] int counter = 0; [L23] int X, Y; [L24] long long x, y, v, xy, yx; [L25] X = __VERIFIER_nondet_int() [L26] Y = __VERIFIER_nondet_int() [L27] v = ((long long) 2 * Y) - X [L28] y = 0 [L29] x = 0 VAL [counter=0, v=0, x=0, X=4, Y=2, y=0] [L31] EXPR counter++ VAL [counter=1, counter++=0, v=0, X=4, x=0, Y=2, y=0] [L31] COND TRUE counter++<1 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [counter=1, v=0, x=0, X=4, x=0, x=0, Y=2, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=1] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [counter=1, v=0, X=4, x=0, x=0, x=0, Y=2, y=0] [L35] COND FALSE !(!(x <= X)) [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ [L45] x++ VAL [counter=1, v=-4, x=0, x=0, x=1, X=4, y=1, Y=2, y++=0] [L31] EXPR counter++ VAL [counter=2, counter++=1, v=-4, X=4, x=0, x=1, x=0, y=1, Y=2, y++=0] [L31] COND FALSE !(counter++<1) [L47] xy = (long long) x*y [L48] yx = (long long) Y*x VAL [counter=2, v=-4, x=2, x=1, X=4, x=1, y=1, Y=2, y++=0] [L49] CALL __VERIFIER_assert(2*yx - 2*xy - X + (long long) 2*Y - v + 2*y == 0) VAL [\old(cond)=0, counter=2] [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=2] [L16] reach_error() VAL [\old(cond)=0, cond=0, counter=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 65.9MB in the beginning and 65.8MB in the end (delta: 25.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 281.15ms. Allocated memory is still 92.3MB. Free memory was 54.3MB in the beginning and 64.8MB in the end (delta: -10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.20ms. Allocated memory is still 92.3MB. Free memory was 64.8MB in the beginning and 63.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.81ms. Allocated memory is still 92.3MB. Free memory was 63.2MB in the beginning and 62.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 400.15ms. Allocated memory is still 92.3MB. Free memory was 62.1MB in the beginning and 50.1MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 3013.92ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 50.1MB in the beginning and 39.7MB in the end (delta: 10.4MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. * Witness Printer took 63.89ms. Allocated memory is still 119.5MB. Free memory was 39.7MB in the beginning and 94.1MB in the end (delta: -54.4MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:45:42,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf5ac167-0d84-4d92-8539-003dddd551da/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE