./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe629be-03d6-4c45-a6eb-8831230b98b1/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe629be-03d6-4c45-a6eb-8831230b98b1/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe629be-03d6-4c45-a6eb-8831230b98b1/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe629be-03d6-4c45-a6eb-8831230b98b1/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe629be-03d6-4c45-a6eb-8831230b98b1/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe629be-03d6-4c45-a6eb-8831230b98b1/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c7f1683dc0c60d20b83300f79a9b15e37cd1fd05703e492aec10298f1b5a1afa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:20:11,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:20:11,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:20:12,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:20:12,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:20:12,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:20:12,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:20:12,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:20:12,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:20:12,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:20:12,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:20:12,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:20:12,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:20:12,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:20:12,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:20:12,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:20:12,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:20:12,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:20:12,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:20:12,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:20:12,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:20:12,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:20:12,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:20:12,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:20:12,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:20:12,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:20:12,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:20:12,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:20:12,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:20:12,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:20:12,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:20:12,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:20:12,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:20:12,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:20:12,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:20:12,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:20:12,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:20:12,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:20:12,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:20:12,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:20:12,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:20:12,103 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe629be-03d6-4c45-a6eb-8831230b98b1/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:20:12,136 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:20:12,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:20:12,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:20:12,138 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:20:12,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:20:12,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:20:12,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:20:12,139 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:20:12,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:20:12,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:20:12,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:20:12,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:20:12,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:20:12,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:20:12,140 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:20:12,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:20:12,141 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:20:12,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:20:12,141 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:20:12,141 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:20:12,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:20:12,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:20:12,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:20:12,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:20:12,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:20:12,142 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:20:12,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:20:12,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:20:12,143 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_afe629be-03d6-4c45-a6eb-8831230b98b1/bin/ukojak-LBtLqBUTdQ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe629be-03d6-4c45-a6eb-8831230b98b1/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7f1683dc0c60d20b83300f79a9b15e37cd1fd05703e492aec10298f1b5a1afa [2021-11-23 01:20:12,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:20:12,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:20:12,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:20:12,440 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:20:12,441 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:20:12,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe629be-03d6-4c45-a6eb-8831230b98b1/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c [2021-11-23 01:20:12,509 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe629be-03d6-4c45-a6eb-8831230b98b1/bin/ukojak-LBtLqBUTdQ/data/1fe73d681/95fc245757ce4e2eadabedde5c89282f/FLAG821930a20 [2021-11-23 01:20:13,029 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:20:13,030 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe629be-03d6-4c45-a6eb-8831230b98b1/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c [2021-11-23 01:20:13,044 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe629be-03d6-4c45-a6eb-8831230b98b1/bin/ukojak-LBtLqBUTdQ/data/1fe73d681/95fc245757ce4e2eadabedde5c89282f/FLAG821930a20 [2021-11-23 01:20:13,508 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe629be-03d6-4c45-a6eb-8831230b98b1/bin/ukojak-LBtLqBUTdQ/data/1fe73d681/95fc245757ce4e2eadabedde5c89282f [2021-11-23 01:20:13,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:20:13,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:20:13,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:20:13,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:20:13,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:20:13,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:20:13" (1/1) ... [2021-11-23 01:20:13,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f834b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:13, skipping insertion in model container [2021-11-23 01:20:13,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:20:13" (1/1) ... [2021-11-23 01:20:13,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:20:13,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:20:13,715 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_afe629be-03d6-4c45-a6eb-8831230b98b1/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c[524,537] [2021-11-23 01:20:13,748 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:20:13,756 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:20:13,774 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_afe629be-03d6-4c45-a6eb-8831230b98b1/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c[524,537] [2021-11-23 01:20:13,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:20:13,797 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:20:13,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:13 WrapperNode [2021-11-23 01:20:13,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:20:13,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:20:13,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:20:13,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:20:13,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:13" (1/1) ... [2021-11-23 01:20:13,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:13" (1/1) ... [2021-11-23 01:20:13,842 INFO L137 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2021-11-23 01:20:13,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:20:13,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:20:13,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:20:13,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:20:13,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:13" (1/1) ... [2021-11-23 01:20:13,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:13" (1/1) ... [2021-11-23 01:20:13,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:13" (1/1) ... [2021-11-23 01:20:13,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:13" (1/1) ... [2021-11-23 01:20:13,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:13" (1/1) ... [2021-11-23 01:20:13,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:13" (1/1) ... [2021-11-23 01:20:13,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:13" (1/1) ... [2021-11-23 01:20:13,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:20:13,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:20:13,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:20:13,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:20:13,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:13" (1/1) ... [2021-11-23 01:20:13,875 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:20:13,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe629be-03d6-4c45-a6eb-8831230b98b1/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:20:13,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe629be-03d6-4c45-a6eb-8831230b98b1/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:20:13,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe629be-03d6-4c45-a6eb-8831230b98b1/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:20:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:20:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 01:20:13,957 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 01:20:13,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:20:13,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:20:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:20:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:20:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:20:14,023 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:20:14,024 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:20:14,163 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:20:14,244 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:20:14,244 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:20:14,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:20:14 BoogieIcfgContainer [2021-11-23 01:20:14,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:20:14,248 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:20:14,248 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:20:14,258 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:20:14,258 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:20:14" (1/1) ... [2021-11-23 01:20:14,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:20:14,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:14,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2021-11-23 01:20:14,371 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2021-11-23 01:20:14,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:20:14,376 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:14,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:14,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:20:14,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:14,916 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 01:20:15,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:15,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 33 transitions. [2021-11-23 01:20:15,182 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2021-11-23 01:20:15,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:20:15,184 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:15,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:15,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 01:20:15,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:15,653 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:20:16,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:16,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 45 transitions. [2021-11-23 01:20:16,443 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 45 transitions. [2021-11-23 01:20:16,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 01:20:16,444 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:16,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:16,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 01:20:16,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:17,114 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:20:20,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:20:21,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:21,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 32 states and 50 transitions. [2021-11-23 01:20:21,004 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 50 transitions. [2021-11-23 01:20:21,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 01:20:21,006 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:21,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:21,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 01:20:21,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:21,164 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 01:20:21,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:21,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 34 states and 57 transitions. [2021-11-23 01:20:21,390 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 57 transitions. [2021-11-23 01:20:21,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 01:20:21,393 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:21,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:21,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 01:20:21,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:21,937 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 01:20:31,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:20:31,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:31,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 35 states and 61 transitions. [2021-11-23 01:20:31,631 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 61 transitions. [2021-11-23 01:20:31,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 01:20:31,632 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:31,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:31,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 01:20:31,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:32,052 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 01:20:32,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:32,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 30 states and 39 transitions. [2021-11-23 01:20:32,440 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2021-11-23 01:20:32,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 01:20:32,441 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:32,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:32,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 01:20:32,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:32,968 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:20:32,998 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-23 01:20:33,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:33,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 24 states and 31 transitions. [2021-11-23 01:20:33,926 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2021-11-23 01:20:33,927 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:20:33,927 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-11-23 01:20:33,934 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 01:20:34,138 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:20:34,141 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:20:34,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:20:34 ImpRootNode [2021-11-23 01:20:34,141 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:20:34,142 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:20:34,142 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:20:34,142 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:20:34,143 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:20:14" (3/4) ... [2021-11-23 01:20:34,145 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:20:34,150 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-11-23 01:20:34,150 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-23 01:20:34,154 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-11-23 01:20:34,155 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-23 01:20:34,155 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 01:20:34,155 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:20:34,205 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe629be-03d6-4c45-a6eb-8831230b98b1/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:20:34,208 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:20:34,209 INFO L158 Benchmark]: Toolchain (without parser) took 20696.94ms. Allocated memory was 123.7MB in the beginning and 161.5MB in the end (delta: 37.7MB). Free memory was 85.8MB in the beginning and 77.7MB in the end (delta: 8.0MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2021-11-23 01:20:34,211 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 123.7MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:20:34,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.80ms. Allocated memory is still 123.7MB. Free memory was 85.6MB in the beginning and 97.8MB in the end (delta: -12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:20:34,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.51ms. Allocated memory is still 123.7MB. Free memory was 97.8MB in the beginning and 95.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:20:34,213 INFO L158 Benchmark]: Boogie Preprocessor took 22.95ms. Allocated memory is still 123.7MB. Free memory was 95.7MB in the beginning and 94.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:20:34,213 INFO L158 Benchmark]: RCFGBuilder took 380.58ms. Allocated memory is still 123.7MB. Free memory was 94.6MB in the beginning and 82.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 01:20:34,215 INFO L158 Benchmark]: CodeCheck took 19893.38ms. Allocated memory was 123.7MB in the beginning and 161.5MB in the end (delta: 37.7MB). Free memory was 82.0MB in the beginning and 80.8MB in the end (delta: 1.2MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. [2021-11-23 01:20:34,220 INFO L158 Benchmark]: Witness Printer took 66.83ms. Allocated memory is still 161.5MB. Free memory was 80.8MB in the beginning and 77.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 01:20:34,222 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 3 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.6s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 321 SdHoareTripleChecker+Valid, 45.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 81 mSDsluCounter, 191 SdHoareTripleChecker+Invalid, 44.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 243 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 768 IncrementalHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 243 mSolverCounterUnsat, 131 mSDtfsCounter, 768 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1575 GetRequests, 1449 SyntacticMatches, 52 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2025 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 181 ConstructedInterpolants, 0 QuantifiedInterpolants, 1103 SizeOfPredicates, 34 NumberOfNonLiveVariables, 634 ConjunctsInSsa, 130 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 89/103 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 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 123.7MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.80ms. Allocated memory is still 123.7MB. Free memory was 85.6MB in the beginning and 97.8MB in the end (delta: -12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.51ms. Allocated memory is still 123.7MB. Free memory was 97.8MB in the beginning and 95.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.95ms. Allocated memory is still 123.7MB. Free memory was 95.7MB in the beginning and 94.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 380.58ms. Allocated memory is still 123.7MB. Free memory was 94.6MB in the beginning and 82.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 19893.38ms. Allocated memory was 123.7MB in the beginning and 161.5MB in the end (delta: 37.7MB). Free memory was 82.0MB in the beginning and 80.8MB in the end (delta: 1.2MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. * Witness Printer took 66.83ms. Allocated memory is still 161.5MB. Free memory was 80.8MB in the beginning and 77.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 01:20:34,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe629be-03d6-4c45-a6eb-8831230b98b1/bin/ukojak-LBtLqBUTdQ/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 Result: TRUE