./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e4c01e-02c6-4c86-af16-46d0219a3648/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e4c01e-02c6-4c86-af16-46d0219a3648/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e4c01e-02c6-4c86-af16-46d0219a3648/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e4c01e-02c6-4c86-af16-46d0219a3648/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e4c01e-02c6-4c86-af16-46d0219a3648/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e4c01e-02c6-4c86-af16-46d0219a3648/bin/ukojak-Rh5K9KB4LI --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 41e3b99a8739a64ea08b115c1bc63941cba76a5cda04966369ff0f88d0ee65cc .................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:50:22,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:50:22,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:50:22,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:50:22,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:50:22,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:50:22,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:50:22,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:50:22,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:50:22,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:50:22,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:50:22,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:50:22,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:50:22,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:50:22,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:50:22,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:50:23,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:50:23,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:50:23,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:50:23,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:50:23,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:50:23,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:50:23,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:50:23,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:50:23,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:50:23,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:50:23,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:50:23,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:50:23,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:50:23,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:50:23,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:50:23,044 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:50:23,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:50:23,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:50:23,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:50:23,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:50:23,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:50:23,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:50:23,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:50:23,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:50:23,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:50:23,059 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e4c01e-02c6-4c86-af16-46d0219a3648/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 03:50:23,110 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:50:23,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:50:23,113 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:50:23,113 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:50:23,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:50:23,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:50:23,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:50:23,115 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:50:23,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:50:23,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:50:23,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:50:23,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:50:23,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:50:23,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:50:23,125 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:50:23,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:50:23,125 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:50:23,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:50:23,126 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:50:23,126 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:50:23,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:50:23,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:50:23,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:50:23,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:50:23,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:50:23,128 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:50:23,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:50:23,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:50:23,129 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_27e4c01e-02c6-4c86-af16-46d0219a3648/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e4c01e-02c6-4c86-af16-46d0219a3648/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41e3b99a8739a64ea08b115c1bc63941cba76a5cda04966369ff0f88d0ee65cc [2021-10-29 03:50:23,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:50:23,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:50:23,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:50:23,490 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:50:23,491 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:50:23,493 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e4c01e-02c6-4c86-af16-46d0219a3648/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c [2021-10-29 03:50:23,575 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e4c01e-02c6-4c86-af16-46d0219a3648/bin/ukojak-Rh5K9KB4LI/data/701026126/2bfab692128b41a5b98547d26672f098/FLAG6a23b8f72 [2021-10-29 03:50:24,171 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:50:24,171 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e4c01e-02c6-4c86-af16-46d0219a3648/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c [2021-10-29 03:50:24,178 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e4c01e-02c6-4c86-af16-46d0219a3648/bin/ukojak-Rh5K9KB4LI/data/701026126/2bfab692128b41a5b98547d26672f098/FLAG6a23b8f72 [2021-10-29 03:50:24,563 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e4c01e-02c6-4c86-af16-46d0219a3648/bin/ukojak-Rh5K9KB4LI/data/701026126/2bfab692128b41a5b98547d26672f098 [2021-10-29 03:50:24,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:50:24,570 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:50:24,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:50:24,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:50:24,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:50:24,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:50:24" (1/1) ... [2021-10-29 03:50:24,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d009638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:50:24, skipping insertion in model container [2021-10-29 03:50:24,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:50:24" (1/1) ... [2021-10-29 03:50:24,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:50:24,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:50:24,793 WARN L228 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_27e4c01e-02c6-4c86-af16-46d0219a3648/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c[458,471] [2021-10-29 03:50:24,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:50:24,826 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:50:24,840 WARN L228 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_27e4c01e-02c6-4c86-af16-46d0219a3648/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c[458,471] [2021-10-29 03:50:24,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:50:24,863 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:50:24,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:50:24 WrapperNode [2021-10-29 03:50:24,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:50:24,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:50:24,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:50:24,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:50:24,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:50:24" (1/1) ... [2021-10-29 03:50:24,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:50:24" (1/1) ... [2021-10-29 03:50:24,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:50:24,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:50:24,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:50:24,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:50:24,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:50:24" (1/1) ... [2021-10-29 03:50:24,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:50:24" (1/1) ... [2021-10-29 03:50:24,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:50:24" (1/1) ... [2021-10-29 03:50:24,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:50:24" (1/1) ... [2021-10-29 03:50:24,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:50:24" (1/1) ... [2021-10-29 03:50:24,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:50:24" (1/1) ... [2021-10-29 03:50:24,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:50:24" (1/1) ... [2021-10-29 03:50:24,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:50:24,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:50:24,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:50:24,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:50:24,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:50:24" (1/1) ... [2021-10-29 03:50:24,966 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:50:24,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e4c01e-02c6-4c86-af16-46d0219a3648/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:50:25,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e4c01e-02c6-4c86-af16-46d0219a3648/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:50:25,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e4c01e-02c6-4c86-af16-46d0219a3648/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:50:25,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:50:25,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:50:25,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:50:25,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:50:25,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-10-29 03:50:25,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-10-29 03:50:25,382 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:50:25,383 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 03:50:25,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:50:25 BoogieIcfgContainer [2021-10-29 03:50:25,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:50:25,387 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:50:25,387 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:50:25,399 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:50:25,399 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:50:25" (1/1) ... [2021-10-29 03:50:25,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:50:25,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:50:25,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2021-10-29 03:50:25,481 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-10-29 03:50:25,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:50:25,483 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:50:25,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:50:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:50:25,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 03:50:25,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:50:25,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:50:26,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:50:26,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2021-10-29 03:50:26,026 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2021-10-29 03:50:26,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 03:50:26,031 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:50:26,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:50:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:50:26,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 03:50:26,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:50:26,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:50:26,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:50:26,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2021-10-29 03:50:26,627 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2021-10-29 03:50:26,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 03:50:26,628 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:50:26,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:50:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:50:26,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 03:50:26,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:50:26,804 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:50:27,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:50:27,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2021-10-29 03:50:27,105 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2021-10-29 03:50:27,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 03:50:27,106 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:50:27,106 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:50:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:50:27,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 03:50:27,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:50:27,298 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-29 03:50:27,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:50:27,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2021-10-29 03:50:27,680 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2021-10-29 03:50:27,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 03:50:27,681 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:50:27,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:50:27,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:50:27,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-29 03:50:27,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:50:27,938 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-29 03:50:28,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:50:28,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2021-10-29 03:50:28,429 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2021-10-29 03:50:28,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-29 03:50:28,430 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:50:28,430 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:50:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:50:28,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-29 03:50:28,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:50:28,752 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 10 proven. 33 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-29 03:50:29,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:50:29,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2021-10-29 03:50:29,248 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2021-10-29 03:50:29,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-29 03:50:29,250 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:50:29,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:50:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:50:29,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-29 03:50:29,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:50:29,722 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-29 03:50:30,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:50:30,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2021-10-29 03:50:30,255 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2021-10-29 03:50:30,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-29 03:50:30,266 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:50:30,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:50:30,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:50:30,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 03:50:30,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:50:30,881 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-10-29 03:50:32,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:50:32,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 26 states and 36 transitions. [2021-10-29 03:50:32,574 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2021-10-29 03:50:32,574 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 03:50:32,575 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2021-10-29 03:50:32,581 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-29 03:50:32,718 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 03:50:32,722 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 03:50:32,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:50:32 ImpRootNode [2021-10-29 03:50:32,723 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:50:32,724 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:50:32,724 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:50:32,724 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:50:32,725 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:50:25" (3/4) ... [2021-10-29 03:50:32,728 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 03:50:32,734 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-10-29 03:50:32,737 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-29 03:50:32,738 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-29 03:50:32,738 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 03:50:32,738 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 03:50:32,780 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e4c01e-02c6-4c86-af16-46d0219a3648/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:50:32,780 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:50:32,782 INFO L168 Benchmark]: Toolchain (without parser) took 8211.37 ms. Allocated memory was 107.0 MB in the beginning and 159.4 MB in the end (delta: 52.4 MB). Free memory was 74.3 MB in the beginning and 119.7 MB in the end (delta: -45.4 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2021-10-29 03:50:32,783 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 107.0 MB. Free memory is still 59.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:50:32,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.82 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 74.3 MB in the beginning and 106.3 MB in the end (delta: -32.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:50:32,785 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.24 ms. Allocated memory is still 132.1 MB. Free memory was 106.3 MB in the beginning and 104.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:50:32,785 INFO L168 Benchmark]: Boogie Preprocessor took 40.38 ms. Allocated memory is still 132.1 MB. Free memory was 104.7 MB in the beginning and 103.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:50:32,786 INFO L168 Benchmark]: RCFGBuilder took 430.90 ms. Allocated memory is still 132.1 MB. Free memory was 103.6 MB in the beginning and 91.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 03:50:32,787 INFO L168 Benchmark]: CodeCheck took 7336.46 ms. Allocated memory was 132.1 MB in the beginning and 159.4 MB in the end (delta: 27.3 MB). Free memory was 91.6 MB in the beginning and 121.8 MB in the end (delta: -30.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:50:32,788 INFO L168 Benchmark]: Witness Printer took 56.64 ms. Allocated memory is still 159.4 MB. Free memory was 121.8 MB in the beginning and 119.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:50:32,791 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.1s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1408 SDtfs, 1168 SDslu, 1560 SDs, 0 SdLazy, 6752 SolverSat, 2900 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1482 GetRequests, 1337 SyntacticMatches, 55 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2896 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 1013 SizeOfPredicates, 11 NumberOfNonLiveVariables, 799 ConjunctsInSsa, 130 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 233/331 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: 12]: 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: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 107.0 MB. Free memory is still 59.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 281.82 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 74.3 MB in the beginning and 106.3 MB in the end (delta: -32.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.24 ms. Allocated memory is still 132.1 MB. Free memory was 106.3 MB in the beginning and 104.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.38 ms. Allocated memory is still 132.1 MB. Free memory was 104.7 MB in the beginning and 103.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 430.90 ms. Allocated memory is still 132.1 MB. Free memory was 103.6 MB in the beginning and 91.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 7336.46 ms. Allocated memory was 132.1 MB in the beginning and 159.4 MB in the end (delta: 27.3 MB). Free memory was 91.6 MB in the beginning and 121.8 MB in the end (delta: -30.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 56.64 ms. Allocated memory is still 159.4 MB. Free memory was 121.8 MB in the beginning and 119.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-29 03:50:32,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e4c01e-02c6-4c86-af16-46d0219a3648/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...