./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-nla/lcm2-both-t.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_47402a46-c91b-457a-98f4-797ba580c843/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47402a46-c91b-457a-98f4-797ba580c843/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47402a46-c91b-457a-98f4-797ba580c843/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47402a46-c91b-457a-98f4-797ba580c843/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-nla/lcm2-both-t.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47402a46-c91b-457a-98f4-797ba580c843/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47402a46-c91b-457a-98f4-797ba580c843/bin/ukojak-rkRKPMF4O4 --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 32bit --witnessprinter.graph.data.programhash f81466ea17a904c8a7b5431bbb2313b9daa463d0ce481677fed2bc40d841f956 --- 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-2329fc7 [2022-12-14 21:57:06,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 21:57:06,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 21:57:07,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 21:57:07,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 21:57:07,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 21:57:07,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 21:57:07,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 21:57:07,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 21:57:07,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 21:57:07,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 21:57:07,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 21:57:07,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 21:57:07,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 21:57:07,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 21:57:07,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 21:57:07,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 21:57:07,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 21:57:07,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 21:57:07,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 21:57:07,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 21:57:07,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 21:57:07,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 21:57:07,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 21:57:07,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 21:57:07,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 21:57:07,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 21:57:07,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 21:57:07,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 21:57:07,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 21:57:07,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 21:57:07,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 21:57:07,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 21:57:07,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 21:57:07,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 21:57:07,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 21:57:07,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 21:57:07,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 21:57:07,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 21:57:07,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 21:57:07,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 21:57:07,039 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47402a46-c91b-457a-98f4-797ba580c843/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-12-14 21:57:07,054 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 21:57:07,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 21:57:07,055 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 21:57:07,055 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 21:57:07,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 21:57:07,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 21:57:07,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 21:57:07,056 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 21:57:07,056 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 21:57:07,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 21:57:07,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 21:57:07,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 21:57:07,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 21:57:07,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 21:57:07,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 21:57:07,057 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 21:57:07,057 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 21:57:07,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 21:57:07,058 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 21:57:07,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 21:57:07,058 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 21:57:07,058 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 21:57:07,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 21:57:07,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:57:07,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 21:57:07,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 21:57:07,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 21:57:07,059 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 21:57:07,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 21:57:07,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 21:57:07,060 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_47402a46-c91b-457a-98f4-797ba580c843/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47402a46-c91b-457a-98f4-797ba580c843/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81466ea17a904c8a7b5431bbb2313b9daa463d0ce481677fed2bc40d841f956 [2022-12-14 21:57:07,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 21:57:07,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 21:57:07,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 21:57:07,245 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 21:57:07,245 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 21:57:07,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47402a46-c91b-457a-98f4-797ba580c843/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/termination-nla/lcm2-both-t.c [2022-12-14 21:57:09,932 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 21:57:10,085 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 21:57:10,085 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47402a46-c91b-457a-98f4-797ba580c843/sv-benchmarks/c/termination-nla/lcm2-both-t.c [2022-12-14 21:57:10,089 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47402a46-c91b-457a-98f4-797ba580c843/bin/ukojak-rkRKPMF4O4/data/0eb9a450a/64fe83c3f8fb44a8b7bc91759f7613db/FLAGbeb2def15 [2022-12-14 21:57:10,100 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47402a46-c91b-457a-98f4-797ba580c843/bin/ukojak-rkRKPMF4O4/data/0eb9a450a/64fe83c3f8fb44a8b7bc91759f7613db [2022-12-14 21:57:10,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 21:57:10,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 21:57:10,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 21:57:10,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 21:57:10,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 21:57:10,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:57:10" (1/1) ... [2022-12-14 21:57:10,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58728d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:10, skipping insertion in model container [2022-12-14 21:57:10,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:57:10" (1/1) ... [2022-12-14 21:57:10,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 21:57:10,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 21:57:10,212 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_nondet_unsigned_int [2022-12-14 21:57:10,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_nondet_unsigned_int [2022-12-14 21:57:10,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:57:10,244 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 21:57:10,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_nondet_unsigned_int [2022-12-14 21:57:10,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_nondet_unsigned_int [2022-12-14 21:57:10,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:57:10,271 INFO L208 MainTranslator]: Completed translation [2022-12-14 21:57:10,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:10 WrapperNode [2022-12-14 21:57:10,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 21:57:10,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 21:57:10,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 21:57:10,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 21:57:10,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:10" (1/1) ... [2022-12-14 21:57:10,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:10" (1/1) ... [2022-12-14 21:57:10,301 INFO L138 Inliner]: procedures = 4, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2022-12-14 21:57:10,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 21:57:10,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 21:57:10,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 21:57:10,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 21:57:10,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:10" (1/1) ... [2022-12-14 21:57:10,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:10" (1/1) ... [2022-12-14 21:57:10,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:10" (1/1) ... [2022-12-14 21:57:10,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:10" (1/1) ... [2022-12-14 21:57:10,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:10" (1/1) ... [2022-12-14 21:57:10,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:10" (1/1) ... [2022-12-14 21:57:10,319 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:10" (1/1) ... [2022-12-14 21:57:10,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:10" (1/1) ... [2022-12-14 21:57:10,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 21:57:10,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 21:57:10,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 21:57:10,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 21:57:10,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:10" (1/1) ... [2022-12-14 21:57:10,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:57:10,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47402a46-c91b-457a-98f4-797ba580c843/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 21:57:10,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47402a46-c91b-457a-98f4-797ba580c843/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 21:57:10,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47402a46-c91b-457a-98f4-797ba580c843/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 21:57:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 21:57:10,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 21:57:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2022-12-14 21:57:10,426 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 21:57:10,427 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 21:57:10,587 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 21:57:10,600 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 21:57:10,600 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 21:57:10,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:57:10 BoogieIcfgContainer [2022-12-14 21:57:10,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 21:57:10,603 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 21:57:10,603 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 21:57:10,610 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 21:57:10,610 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:57:10" (1/1) ... [2022-12-14 21:57:10,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 21:57:10,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:57:10,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 52 states and 55 transitions. [2022-12-14 21:57:10,653 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2022-12-14 21:57:10,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 21:57:10,655 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:57:10,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:57:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:57:10,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 21:57:10,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 21:57:10,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:57:10,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:57:10,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 54 states and 58 transitions. [2022-12-14 21:57:10,835 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2022-12-14 21:57:10,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 21:57:10,835 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:57:10,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:57:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 21:57:10,859 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 21:57:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 21:57:10,875 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-12-14 21:57:10,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 09:57:10 ImpRootNode [2022-12-14 21:57:10,891 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 21:57:10,892 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 21:57:10,892 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 21:57:10,892 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 21:57:10,892 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:57:10" (3/4) ... [2022-12-14 21:57:10,893 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 21:57:10,916 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47402a46-c91b-457a-98f4-797ba580c843/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 21:57:10,916 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 21:57:10,916 INFO L158 Benchmark]: Toolchain (without parser) took 813.10ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 84.2MB in the beginning and 105.3MB in the end (delta: -21.2MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2022-12-14 21:57:10,917 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 115.3MB. Free memory was 91.4MB in the beginning and 91.3MB in the end (delta: 70.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:57:10,917 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.15ms. Allocated memory is still 115.3MB. Free memory was 83.9MB in the beginning and 74.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 21:57:10,918 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.02ms. Allocated memory is still 115.3MB. Free memory was 74.3MB in the beginning and 72.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 21:57:10,918 INFO L158 Benchmark]: Boogie Preprocessor took 18.75ms. Allocated memory is still 115.3MB. Free memory was 72.8MB in the beginning and 71.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:57:10,918 INFO L158 Benchmark]: RCFGBuilder took 280.43ms. Allocated memory is still 115.3MB. Free memory was 71.7MB in the beginning and 58.5MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 21:57:10,919 INFO L158 Benchmark]: CodeCheck took 288.20ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 58.3MB in the beginning and 107.4MB in the end (delta: -49.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:57:10,919 INFO L158 Benchmark]: Witness Printer took 24.30ms. Allocated memory is still 138.4MB. Free memory was 106.7MB in the beginning and 105.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:57:10,923 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, 52 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 4 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 2 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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: 42]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int a, b; [L21] int x, y, u, v; [L22] a = __VERIFIER_nondet_unsigned_int() [L23] b = __VERIFIER_nondet_unsigned_int() [L30] COND FALSE !(a < 1 || b < 1 || a > 65535 || b > 65535) [L34] x = a [L35] y = b [L36] u = b [L37] v = a VAL [a=32769, b=65535, u=65535, v=32769, x=32769, y=65535] [L39] COND TRUE 1 VAL [a=32769, b=65535, u=65535, v=32769, x=32769, y=65535] [L42] x*u VAL [a=32769, b=65535, u=65535, v=32769, x=32769, y=65535] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 115.3MB. Free memory was 91.4MB in the beginning and 91.3MB in the end (delta: 70.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 168.15ms. Allocated memory is still 115.3MB. Free memory was 83.9MB in the beginning and 74.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.02ms. Allocated memory is still 115.3MB. Free memory was 74.3MB in the beginning and 72.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.75ms. Allocated memory is still 115.3MB. Free memory was 72.8MB in the beginning and 71.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 280.43ms. Allocated memory is still 115.3MB. Free memory was 71.7MB in the beginning and 58.5MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 288.20ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 58.3MB in the beginning and 107.4MB in the end (delta: -49.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 24.30ms. Allocated memory is still 138.4MB. Free memory was 106.7MB in the beginning and 105.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-12-14 21:57:10,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47402a46-c91b-457a-98f4-797ba580c843/bin/ukojak-rkRKPMF4O4/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(OVERFLOW)