./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.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_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/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_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/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_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/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 752da8674c09ab2aa763dfc92e2ae3d757cf5403d673d6c22b243cb3c0d91c44 --- 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 16:46:22,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:46:22,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:46:22,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:46:22,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:46:22,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:46:22,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:46:22,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:46:22,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:46:22,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:46:22,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:46:22,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:46:22,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:46:22,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:46:22,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:46:22,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:46:22,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:46:23,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:46:23,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:46:23,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:46:23,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:46:23,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:46:23,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:46:23,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:46:23,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:46:23,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:46:23,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:46:23,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:46:23,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:46:23,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:46:23,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:46:23,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:46:23,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:46:23,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:46:23,043 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:46:23,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:46:23,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:46:23,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:46:23,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:46:23,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:46:23,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:46:23,048 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:46:23,100 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:46:23,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:46:23,101 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:46:23,102 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:46:23,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:46:23,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:46:23,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:46:23,103 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:46:23,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:46:23,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:46:23,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:46:23,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:46:23,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:46:23,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:46:23,105 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:46:23,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:46:23,105 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:46:23,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:46:23,106 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:46:23,106 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:46:23,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:46:23,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:46:23,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:46:23,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:46:23,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:46:23,107 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:46:23,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:46:23,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:46:23,108 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_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 752da8674c09ab2aa763dfc92e2ae3d757cf5403d673d6c22b243cb3c0d91c44 [2022-10-17 16:46:23,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:46:23,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:46:23,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:46:23,416 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:46:23,418 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:46:23,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c [2022-10-17 16:46:23,485 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/bin/ukojak-92XMlrwhuB/data/d1f29c3fa/9ec4cd61a9bc4ec495191425a82815e5/FLAG011a6bc63 [2022-10-17 16:46:23,951 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:46:23,952 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c [2022-10-17 16:46:23,960 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/bin/ukojak-92XMlrwhuB/data/d1f29c3fa/9ec4cd61a9bc4ec495191425a82815e5/FLAG011a6bc63 [2022-10-17 16:46:24,333 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/bin/ukojak-92XMlrwhuB/data/d1f29c3fa/9ec4cd61a9bc4ec495191425a82815e5 [2022-10-17 16:46:24,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:46:24,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:46:24,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:46:24,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:46:24,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:46:24,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:46:24" (1/1) ... [2022-10-17 16:46:24,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e6227fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:24, skipping insertion in model container [2022-10-17 16:46:24,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:46:24" (1/1) ... [2022-10-17 16:46:24,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:46:24,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:46:24,583 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_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[557,570] [2022-10-17 16:46:24,587 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_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[613,626] [2022-10-17 16:46:24,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:46:24,598 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:46:24,613 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_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[557,570] [2022-10-17 16:46:24,614 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_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[613,626] [2022-10-17 16:46:24,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:46:24,629 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:46:24,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:24 WrapperNode [2022-10-17 16:46:24,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:46:24,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:46:24,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:46:24,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:46:24,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:24" (1/1) ... [2022-10-17 16:46:24,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:24" (1/1) ... [2022-10-17 16:46:24,665 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2022-10-17 16:46:24,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:46:24,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:46:24,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:46:24,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:46:24,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:24" (1/1) ... [2022-10-17 16:46:24,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:24" (1/1) ... [2022-10-17 16:46:24,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:24" (1/1) ... [2022-10-17 16:46:24,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:24" (1/1) ... [2022-10-17 16:46:24,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:24" (1/1) ... [2022-10-17 16:46:24,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:24" (1/1) ... [2022-10-17 16:46:24,684 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:24" (1/1) ... [2022-10-17 16:46:24,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:24" (1/1) ... [2022-10-17 16:46:24,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:46:24,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:46:24,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:46:24,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:46:24,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:24" (1/1) ... [2022-10-17 16:46:24,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:46:24,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:46:24,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:46:24,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:46:24,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:46:24,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:46:24,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:46:24,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:46:24,858 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:46:24,860 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:46:25,030 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:46:25,062 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:46:25,062 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:46:25,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:25 BoogieIcfgContainer [2022-10-17 16:46:25,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:46:25,067 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:46:25,067 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:46:25,078 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:46:25,078 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:25" (1/1) ... [2022-10-17 16:46:25,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:46:25,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:25,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2022-10-17 16:46:25,177 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2022-10-17 16:46:25,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:46:25,179 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:25,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:25,460 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 16:46:25,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:25,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2022-10-17 16:46:25,539 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-10-17 16:46:25,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:46:25,539 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:25,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:25,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:26,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:26,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2022-10-17 16:46:26,176 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2022-10-17 16:46:26,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:46:26,177 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:26,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:26,228 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:46:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:26,315 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:46:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:26,336 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2022-10-17 16:46:26,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:46:26 ImpRootNode [2022-10-17 16:46:26,366 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:46:26,367 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:46:26,367 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:46:26,367 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:46:26,368 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:25" (3/4) ... [2022-10-17 16:46:26,370 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:46:26,411 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:46:26,412 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:46:26,413 INFO L158 Benchmark]: Toolchain (without parser) took 2072.06ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 55.3MB in the beginning and 79.9MB in the end (delta: -24.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:46:26,413 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 98.6MB. Free memory was 71.2MB in the beginning and 71.2MB in the end (delta: 48.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:46:26,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.42ms. Allocated memory is still 98.6MB. Free memory was 55.1MB in the beginning and 72.5MB in the end (delta: -17.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 16:46:26,415 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.02ms. Allocated memory is still 98.6MB. Free memory was 72.3MB in the beginning and 70.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:46:26,415 INFO L158 Benchmark]: Boogie Preprocessor took 21.40ms. Allocated memory is still 98.6MB. Free memory was 70.9MB in the beginning and 69.9MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:46:26,416 INFO L158 Benchmark]: RCFGBuilder took 376.95ms. Allocated memory is still 98.6MB. Free memory was 69.9MB in the beginning and 60.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:46:26,416 INFO L158 Benchmark]: CodeCheck took 1299.31ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 60.1MB in the beginning and 82.0MB in the end (delta: -22.0MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2022-10-17 16:46:26,417 INFO L158 Benchmark]: Witness Printer took 45.27ms. Allocated memory is still 119.5MB. Free memory was 82.0MB in the beginning and 79.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:46:26,420 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, 11 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 10 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 50 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 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: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L5] unsigned char n = __VERIFIER_nondet_uchar(); [L6] COND FALSE !(n == 0) [L9] unsigned char v = 0; [L10] unsigned char s = 0; [L11] unsigned int i = 0; VAL [i=0, n=2, s=0, v=0] [L12] COND TRUE i < n [L13] v = __VERIFIER_nondet_uchar() [L14] s += v [L15] ++i VAL [i=1, n=2, s=255, v=255] [L12] COND TRUE i < n [L13] v = __VERIFIER_nondet_uchar() [L14] s += v [L15] ++i VAL [i=2, n=2, s=0, v=1] [L12] COND FALSE !(i < n) VAL [i=2, n=2, s=0, v=1] [L17] COND TRUE s < v VAL [i=2, n=2, s=0, v=1] [L18] reach_error() VAL [i=2, n=2, s=0, v=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 98.6MB. Free memory was 71.2MB in the beginning and 71.2MB in the end (delta: 48.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.42ms. Allocated memory is still 98.6MB. Free memory was 55.1MB in the beginning and 72.5MB in the end (delta: -17.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.02ms. Allocated memory is still 98.6MB. Free memory was 72.3MB in the beginning and 70.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.40ms. Allocated memory is still 98.6MB. Free memory was 70.9MB in the beginning and 69.9MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 376.95ms. Allocated memory is still 98.6MB. Free memory was 69.9MB in the beginning and 60.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1299.31ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 60.1MB in the beginning and 82.0MB in the end (delta: -22.0MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. * Witness Printer took 45.27ms. Allocated memory is still 119.5MB. Free memory was 82.0MB in the beginning and 79.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:46:26,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ca39e6-47e9-4048-9588-5d7bf27c4fbe/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