./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark27_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/bin/ukojak-jW3SillKbg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark27_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/bin/ukojak-jW3SillKbg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 917374027b639c45b575eeb17a4ba7670f94886b4db7d6a64e3f533dbd0231cc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 22:24:47,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 22:24:47,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 22:24:47,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 22:24:47,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 22:24:47,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 22:24:47,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 22:24:47,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 22:24:47,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 22:24:47,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 22:24:47,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 22:24:47,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 22:24:47,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 22:24:47,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 22:24:47,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 22:24:47,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 22:24:47,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 22:24:47,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 22:24:47,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 22:24:47,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 22:24:47,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 22:24:47,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 22:24:47,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 22:24:47,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 22:24:47,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 22:24:47,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 22:24:47,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 22:24:47,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 22:24:47,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 22:24:47,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 22:24:47,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 22:24:47,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 22:24:47,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 22:24:47,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 22:24:47,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 22:24:47,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 22:24:47,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 22:24:47,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 22:24:47,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 22:24:47,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 22:24:47,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 22:24:47,791 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-11-21 22:24:47,833 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 22:24:47,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 22:24:47,835 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 22:24:47,835 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 22:24:47,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 22:24:47,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 22:24:47,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 22:24:47,836 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 22:24:47,837 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 22:24:47,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 22:24:47,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 22:24:47,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 22:24:47,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 22:24:47,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 22:24:47,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 22:24:47,839 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 22:24:47,839 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 22:24:47,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 22:24:47,839 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 22:24:47,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 22:24:47,840 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 22:24:47,840 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 22:24:47,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 22:24:47,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:24:47,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 22:24:47,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 22:24:47,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 22:24:47,841 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 22:24:47,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 22:24:47,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 22:24:47,841 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_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/bin/ukojak-jW3SillKbg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 917374027b639c45b575eeb17a4ba7670f94886b4db7d6a64e3f533dbd0231cc [2022-11-21 22:24:48,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 22:24:48,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 22:24:48,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 22:24:48,173 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 22:24:48,173 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 22:24:48,175 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/loop-zilu/benchmark27_linear.i [2022-11-21 22:24:51,127 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 22:24:51,397 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 22:24:51,398 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/sv-benchmarks/c/loop-zilu/benchmark27_linear.i [2022-11-21 22:24:51,404 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/bin/ukojak-jW3SillKbg/data/afed4f5ab/55ad8f35c9f546c492573c7c2ff582bd/FLAG12b7945aa [2022-11-21 22:24:51,419 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/bin/ukojak-jW3SillKbg/data/afed4f5ab/55ad8f35c9f546c492573c7c2ff582bd [2022-11-21 22:24:51,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 22:24:51,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 22:24:51,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 22:24:51,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 22:24:51,434 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 22:24:51,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:51" (1/1) ... [2022-11-21 22:24:51,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@762b1c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:51, skipping insertion in model container [2022-11-21 22:24:51,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:51" (1/1) ... [2022-11-21 22:24:51,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 22:24:51,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 22:24:51,697 WARN L237 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_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/sv-benchmarks/c/loop-zilu/benchmark27_linear.i[868,881] [2022-11-21 22:24:51,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 22:24:51,726 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 22:24:51,740 WARN L237 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_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/sv-benchmarks/c/loop-zilu/benchmark27_linear.i[868,881] [2022-11-21 22:24:51,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 22:24:51,764 INFO L208 MainTranslator]: Completed translation [2022-11-21 22:24:51,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:51 WrapperNode [2022-11-21 22:24:51,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 22:24:51,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 22:24:51,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 22:24:51,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 22:24:51,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:51" (1/1) ... [2022-11-21 22:24:51,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:51" (1/1) ... [2022-11-21 22:24:51,806 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2022-11-21 22:24:51,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 22:24:51,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 22:24:51,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 22:24:51,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 22:24:51,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:51" (1/1) ... [2022-11-21 22:24:51,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:51" (1/1) ... [2022-11-21 22:24:51,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:51" (1/1) ... [2022-11-21 22:24:51,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:51" (1/1) ... [2022-11-21 22:24:51,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:51" (1/1) ... [2022-11-21 22:24:51,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:51" (1/1) ... [2022-11-21 22:24:51,844 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:51" (1/1) ... [2022-11-21 22:24:51,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:51" (1/1) ... [2022-11-21 22:24:51,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 22:24:51,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 22:24:51,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 22:24:51,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 22:24:51,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:51" (1/1) ... [2022-11-21 22:24:51,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:24:51,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/bin/ukojak-jW3SillKbg/z3 [2022-11-21 22:24:51,881 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 22:24:51,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 22:24:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 22:24:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 22:24:51,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 22:24:51,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 22:24:51,996 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 22:24:51,998 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 22:24:52,205 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 22:24:52,239 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 22:24:52,239 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 22:24:52,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:52 BoogieIcfgContainer [2022-11-21 22:24:52,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 22:24:52,243 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 22:24:52,243 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 22:24:52,253 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 22:24:52,253 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:52" (1/1) ... [2022-11-21 22:24:52,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 22:24:52,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:24:52,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2022-11-21 22:24:52,338 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-21 22:24:52,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 22:24:52,340 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:24:52,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:24:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:24:52,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:24:52,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:24:52,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2022-11-21 22:24:52,662 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-21 22:24:52,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 22:24:52,662 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:24:52,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:24:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 22:24:52,680 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 22:24:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 22:24:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 22:24:52,758 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 22:24:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 22:24:52,776 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-11-21 22:24:52,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 10:24:52 ImpRootNode [2022-11-21 22:24:52,796 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 22:24:52,797 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 22:24:52,797 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 22:24:52,797 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 22:24:52,798 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:52" (3/4) ... [2022-11-21 22:24:52,800 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-21 22:24:52,831 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/bin/ukojak-jW3SillKbg/witness.graphml [2022-11-21 22:24:52,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 22:24:52,833 INFO L158 Benchmark]: Toolchain (without parser) took 1404.19ms. Allocated memory is still 155.2MB. Free memory was 122.2MB in the beginning and 85.7MB in the end (delta: 36.4MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2022-11-21 22:24:52,833 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 127.9MB. Free memory was 95.3MB in the beginning and 95.2MB in the end (delta: 86.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:24:52,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.71ms. Allocated memory is still 155.2MB. Free memory was 122.2MB in the beginning and 119.9MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 22:24:52,835 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.76ms. Allocated memory is still 155.2MB. Free memory was 119.3MB in the beginning and 117.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 22:24:52,835 INFO L158 Benchmark]: Boogie Preprocessor took 38.90ms. Allocated memory is still 155.2MB. Free memory was 117.5MB in the beginning and 116.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 22:24:52,836 INFO L158 Benchmark]: RCFGBuilder took 395.48ms. Allocated memory is still 155.2MB. Free memory was 116.4MB in the beginning and 105.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 22:24:52,837 INFO L158 Benchmark]: CodeCheck took 553.53ms. Allocated memory is still 155.2MB. Free memory was 105.2MB in the beginning and 87.1MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 22:24:52,837 INFO L158 Benchmark]: Witness Printer took 34.97ms. Allocated memory is still 155.2MB. Free memory was 87.1MB in the beginning and 85.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:24:52,841 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, 18 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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: 23]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int i = __VERIFIER_nondet_int(); [L21] int j = __VERIFIER_nondet_int(); [L22] int k = __VERIFIER_nondet_int(); [L23] ii-j VAL [i=-2, ii-j=1, j=2147483647, k=0] [L23] i-j VAL [i=-2, ii-j=1, j=2147483647, k=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 127.9MB. Free memory was 95.3MB in the beginning and 95.2MB in the end (delta: 86.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.71ms. Allocated memory is still 155.2MB. Free memory was 122.2MB in the beginning and 119.9MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.76ms. Allocated memory is still 155.2MB. Free memory was 119.3MB in the beginning and 117.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.90ms. Allocated memory is still 155.2MB. Free memory was 117.5MB in the beginning and 116.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.48ms. Allocated memory is still 155.2MB. Free memory was 116.4MB in the beginning and 105.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 553.53ms. Allocated memory is still 155.2MB. Free memory was 105.2MB in the beginning and 87.1MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 34.97ms. Allocated memory is still 155.2MB. Free memory was 87.1MB in the beginning and 85.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-11-21 22:24:52,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1c1f8c-a52b-44cb-9a6b-c48a18506735/bin/ukojak-jW3SillKbg/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)