./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/functions_1-1.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_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/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_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-acceleration/functions_1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/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_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/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 d9fc6ec4480297fee1f7419ded78cafcfaf309d48a05ca3c98ab67dd7817eba5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:06:43,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:06:43,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:06:43,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:06:43,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:06:43,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:06:43,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:06:43,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:06:43,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:06:43,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:06:43,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:06:43,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:06:43,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:06:43,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:06:43,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:06:43,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:06:43,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:06:43,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:06:43,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:06:43,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:06:43,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:06:43,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:06:43,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:06:43,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:06:43,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:06:43,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:06:43,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:06:43,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:06:43,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:06:43,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:06:43,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:06:43,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:06:43,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:06:43,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:06:43,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:06:43,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:06:43,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:06:43,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:06:43,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:06:43,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:06:43,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:06:43,192 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:06:43,217 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:06:43,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:06:43,219 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:06:43,219 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:06:43,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:06:43,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:06:43,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:06:43,221 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:06:43,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:06:43,221 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:06:43,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:06:43,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:06:43,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:06:43,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:06:43,223 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:06:43,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:06:43,223 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:06:43,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:06:43,224 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:06:43,224 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:06:43,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:06:43,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:06:43,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:06:43,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:06:43,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:06:43,225 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:06:43,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:06:43,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:06:43,226 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_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9fc6ec4480297fee1f7419ded78cafcfaf309d48a05ca3c98ab67dd7817eba5 [2021-11-22 23:06:43,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:06:43,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:06:43,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:06:43,526 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:06:43,527 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:06:43,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/loop-acceleration/functions_1-1.c [2021-11-22 23:06:43,618 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/bin/ukojak-LBtLqBUTdQ/data/cad9bb409/3eda2f2b9e9b4268a549ab167db778fe/FLAG293d0fe29 [2021-11-22 23:06:44,106 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:06:44,107 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/sv-benchmarks/c/loop-acceleration/functions_1-1.c [2021-11-22 23:06:44,119 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/bin/ukojak-LBtLqBUTdQ/data/cad9bb409/3eda2f2b9e9b4268a549ab167db778fe/FLAG293d0fe29 [2021-11-22 23:06:44,457 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/bin/ukojak-LBtLqBUTdQ/data/cad9bb409/3eda2f2b9e9b4268a549ab167db778fe [2021-11-22 23:06:44,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:06:44,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:06:44,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:06:44,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:06:44,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:06:44,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@493a4757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44, skipping insertion in model container [2021-11-22 23:06:44,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:06:44,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:06:44,637 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_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/sv-benchmarks/c/loop-acceleration/functions_1-1.c[325,338] [2021-11-22 23:06:44,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:06:44,680 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:06:44,693 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_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/sv-benchmarks/c/loop-acceleration/functions_1-1.c[325,338] [2021-11-22 23:06:44,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:06:44,712 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:06:44,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44 WrapperNode [2021-11-22 23:06:44,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:06:44,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:06:44,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:06:44,714 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:06:44,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,745 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 28 [2021-11-22 23:06:44,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:06:44,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:06:44,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:06:44,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:06:44,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:06:44,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:06:44,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:06:44,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:06:44,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,777 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:06:44,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:06:44,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:06:44,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:06:44,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:06:44,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:06:44,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:06:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:06:44,935 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:06:44,936 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:06:45,017 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:06:45,036 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:06:45,036 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 23:06:45,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:06:45 BoogieIcfgContainer [2021-11-22 23:06:45,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:06:45,040 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-22 23:06:45,040 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-22 23:06:45,049 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-22 23:06:45,049 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:06:45" (1/1) ... [2021-11-22 23:06:45,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:45,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:45,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2021-11-22 23:06:45,116 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2021-11-22 23:06:45,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-22 23:06:45,119 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:45,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:45,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:06:45,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:45,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2021-11-22 23:06:45,393 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2021-11-22 23:06:45,393 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-22 23:06:45,393 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2021-11-22 23:06:45,414 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-22 23:06:45,428 INFO L560 CodeCheckObserver]: Invariant with dag size 10 [2021-11-22 23:06:45,438 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-22 23:06:45,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.11 11:06:45 ImpRootNode [2021-11-22 23:06:45,438 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-22 23:06:45,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 23:06:45,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 23:06:45,439 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 23:06:45,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:06:45" (3/4) ... [2021-11-22 23:06:45,443 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-22 23:06:45,453 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-22 23:06:45,453 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-22 23:06:45,453 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-22 23:06:45,453 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-22 23:06:45,493 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-22 23:06:45,493 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 23:06:45,495 INFO L158 Benchmark]: Toolchain (without parser) took 1032.60ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 47.8MB in the beginning and 55.0MB in the end (delta: -7.2MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2021-11-22 23:06:45,496 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 81.8MB. Free memory was 54.3MB in the beginning and 54.2MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:06:45,497 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.87ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 47.7MB in the beginning and 83.8MB in the end (delta: -36.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 23:06:45,498 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.19ms. Allocated memory is still 107.0MB. Free memory was 83.8MB in the beginning and 82.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:06:45,499 INFO L158 Benchmark]: Boogie Preprocessor took 19.44ms. Allocated memory is still 107.0MB. Free memory was 82.3MB in the beginning and 81.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:06:45,500 INFO L158 Benchmark]: RCFGBuilder took 271.99ms. Allocated memory is still 107.0MB. Free memory was 81.2MB in the beginning and 72.3MB in the end (delta: 8.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-22 23:06:45,501 INFO L158 Benchmark]: CodeCheck took 398.31ms. Allocated memory is still 107.0MB. Free memory was 72.3MB in the beginning and 57.1MB in the end (delta: 15.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-22 23:06:45,502 INFO L158 Benchmark]: Witness Printer took 54.25ms. Allocated memory is still 107.0MB. Free memory was 57.1MB in the beginning and 55.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:06:45,508 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, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 1 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 7]: 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: 19]: Loop Invariant Derived loop invariant: x <= 2 * (x / 2) && 0 < x / 2 + 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 81.8MB. Free memory was 54.3MB in the beginning and 54.2MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.87ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 47.7MB in the beginning and 83.8MB in the end (delta: -36.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.19ms. Allocated memory is still 107.0MB. Free memory was 83.8MB in the beginning and 82.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.44ms. Allocated memory is still 107.0MB. Free memory was 82.3MB in the beginning and 81.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 271.99ms. Allocated memory is still 107.0MB. Free memory was 81.2MB in the beginning and 72.3MB in the end (delta: 8.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * CodeCheck took 398.31ms. Allocated memory is still 107.0MB. Free memory was 72.3MB in the beginning and 57.1MB in the end (delta: 15.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 54.25ms. Allocated memory is still 107.0MB. Free memory was 57.1MB in the beginning and 55.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-22 23:06:45,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb6db7c-7aae-4722-9e7c-744bdbf89b4e/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