./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/n.c40.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_0b27ade8-757c-4a3c-97f6-54d7d80a754e/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b27ade8-757c-4a3c-97f6-54d7d80a754e/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_0b27ade8-757c-4a3c-97f6-54d7d80a754e/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b27ade8-757c-4a3c-97f6-54d7d80a754e/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/n.c40.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b27ade8-757c-4a3c-97f6-54d7d80a754e/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_0b27ade8-757c-4a3c-97f6-54d7d80a754e/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 ec147baa41deaa706a3db1972af791532e50c36ff3c23d3d92f8d6bea9417e65 ........................................................................................................................................................................................................................................... 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 03:21:31,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:21:31,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:21:31,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:21:31,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:21:31,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:21:31,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:21:31,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:21:31,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:21:31,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:21:31,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:21:31,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:21:31,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:21:31,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:21:31,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:21:31,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:21:31,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:21:31,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:21:31,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:21:31,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:21:31,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:21:31,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:21:31,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:21:31,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:21:31,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:21:31,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:21:31,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:21:31,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:21:31,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:21:31,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:21:31,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:21:31,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:21:31,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:21:31,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:21:31,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:21:31,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:21:31,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:21:31,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:21:31,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:21:31,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:21:31,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:21:31,648 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b27ade8-757c-4a3c-97f6-54d7d80a754e/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 03:21:31,697 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:21:31,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:21:31,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:21:31,699 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:21:31,701 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:21:31,701 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:21:31,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:21:31,701 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:21:31,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:21:31,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:21:31,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:21:31,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:21:31,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:21:31,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:21:31,704 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:21:31,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:21:31,704 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:21:31,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:21:31,705 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:21:31,705 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:21:31,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:21:31,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:21:31,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:21:31,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:21:31,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:21:31,706 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:21:31,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:21:31,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:21:31,707 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_0b27ade8-757c-4a3c-97f6-54d7d80a754e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b27ade8-757c-4a3c-97f6-54d7d80a754e/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec147baa41deaa706a3db1972af791532e50c36ff3c23d3d92f8d6bea9417e65 [2021-10-29 03:21:32,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:21:32,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:21:32,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:21:32,060 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:21:32,061 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:21:32,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b27ade8-757c-4a3c-97f6-54d7d80a754e/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/loops/n.c40.c [2021-10-29 03:21:32,128 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b27ade8-757c-4a3c-97f6-54d7d80a754e/bin/ukojak-Rh5K9KB4LI/data/6a54c6f77/0ad1370816424bcda00168091ffa3e5a/FLAG1aa4655e9 [2021-10-29 03:21:32,729 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:21:32,730 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b27ade8-757c-4a3c-97f6-54d7d80a754e/sv-benchmarks/c/loops/n.c40.c [2021-10-29 03:21:32,742 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b27ade8-757c-4a3c-97f6-54d7d80a754e/bin/ukojak-Rh5K9KB4LI/data/6a54c6f77/0ad1370816424bcda00168091ffa3e5a/FLAG1aa4655e9 [2021-10-29 03:21:33,097 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b27ade8-757c-4a3c-97f6-54d7d80a754e/bin/ukojak-Rh5K9KB4LI/data/6a54c6f77/0ad1370816424bcda00168091ffa3e5a [2021-10-29 03:21:33,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:21:33,102 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:21:33,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:21:33,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:21:33,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:21:33,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:21:33" (1/1) ... [2021-10-29 03:21:33,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e55787b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:33, skipping insertion in model container [2021-10-29 03:21:33,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:21:33" (1/1) ... [2021-10-29 03:21:33,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:21:33,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:21:33,328 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_0b27ade8-757c-4a3c-97f6-54d7d80a754e/sv-benchmarks/c/loops/n.c40.c[498,511] [2021-10-29 03:21:33,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:21:33,346 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:21:33,363 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_0b27ade8-757c-4a3c-97f6-54d7d80a754e/sv-benchmarks/c/loops/n.c40.c[498,511] [2021-10-29 03:21:33,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:21:33,379 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:21:33,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:33 WrapperNode [2021-10-29 03:21:33,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:21:33,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:21:33,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:21:33,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:21:33,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:33" (1/1) ... [2021-10-29 03:21:33,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:33" (1/1) ... [2021-10-29 03:21:33,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:21:33,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:21:33,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:21:33,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:21:33,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:33" (1/1) ... [2021-10-29 03:21:33,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:33" (1/1) ... [2021-10-29 03:21:33,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:33" (1/1) ... [2021-10-29 03:21:33,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:33" (1/1) ... [2021-10-29 03:21:33,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:33" (1/1) ... [2021-10-29 03:21:33,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:33" (1/1) ... [2021-10-29 03:21:33,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:33" (1/1) ... [2021-10-29 03:21:33,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:21:33,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:21:33,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:21:33,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:21:33,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:33" (1/1) ... [2021-10-29 03:21:33,454 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:21:33,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b27ade8-757c-4a3c-97f6-54d7d80a754e/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:21:33,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b27ade8-757c-4a3c-97f6-54d7d80a754e/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:21:33,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b27ade8-757c-4a3c-97f6-54d7d80a754e/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:21:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 03:21:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:21:33,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:21:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 03:21:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:21:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:21:33,876 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:21:33,876 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-29 03:21:33,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:21:33 BoogieIcfgContainer [2021-10-29 03:21:33,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:21:33,880 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:21:33,881 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:21:33,892 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:21:33,893 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:21:33" (1/1) ... [2021-10-29 03:21:33,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:21:33,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:33,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2021-10-29 03:21:33,941 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2021-10-29 03:21:33,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:21:33,944 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:33,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:34,149 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 03:21:34,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:34,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2021-10-29 03:21:34,167 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-10-29 03:21:34,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:21:34,168 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:34,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:34,291 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 03:21:34,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:34,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2021-10-29 03:21:34,356 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2021-10-29 03:21:34,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 03:21:34,357 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:34,358 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:34,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:21:34,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:34,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 7 states and 6 transitions. [2021-10-29 03:21:34,767 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-10-29 03:21:34,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 03:21:34,767 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2021-10-29 03:21:34,775 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-29 03:21:34,795 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 03:21:34,799 INFO L565 CodeCheckObserver]: Invariant with dag size 14 [2021-10-29 03:21:34,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:21:34 ImpRootNode [2021-10-29 03:21:34,820 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:21:34,821 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:21:34,821 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:21:34,821 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:21:34,822 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:21:33" (3/4) ... [2021-10-29 03:21:34,825 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 03:21:34,843 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-29 03:21:34,843 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 03:21:34,843 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 03:21:34,844 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 03:21:34,886 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b27ade8-757c-4a3c-97f6-54d7d80a754e/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:21:34,887 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:21:34,889 INFO L168 Benchmark]: Toolchain (without parser) took 1785.00 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 66.6 MB in the beginning and 82.4 MB in the end (delta: -15.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 03:21:34,889 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory is still 51.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:21:34,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.58 ms. Allocated memory is still 98.6 MB. Free memory was 66.4 MB in the beginning and 73.2 MB in the end (delta: -6.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:21:34,891 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.85 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 71.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:21:34,891 INFO L168 Benchmark]: Boogie Preprocessor took 25.68 ms. Allocated memory is still 98.6 MB. Free memory was 71.8 MB in the beginning and 70.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:21:34,892 INFO L168 Benchmark]: RCFGBuilder took 435.77 ms. Allocated memory is still 98.6 MB. Free memory was 70.8 MB in the beginning and 59.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 03:21:34,893 INFO L168 Benchmark]: CodeCheck took 939.76 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 59.3 MB in the beginning and 84.8 MB in the end (delta: -25.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:21:34,894 INFO L168 Benchmark]: Witness Printer took 66.06 ms. Allocated memory is still 119.5 MB. Free memory was 84.8 MB in the beginning and 82.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:21:34,897 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, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 26 SDslu, 8 SDs, 0 SdLazy, 88 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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: 22]: 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: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (unknown-#memory_int-unknown[x][i + x] == 0 && !(x == y)) && i == 0 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory is still 51.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 274.58 ms. Allocated memory is still 98.6 MB. Free memory was 66.4 MB in the beginning and 73.2 MB in the end (delta: -6.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.85 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 71.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.68 ms. Allocated memory is still 98.6 MB. Free memory was 71.8 MB in the beginning and 70.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 435.77 ms. Allocated memory is still 98.6 MB. Free memory was 70.8 MB in the beginning and 59.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 939.76 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 59.3 MB in the beginning and 84.8 MB in the end (delta: -25.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 66.06 ms. Allocated memory is still 119.5 MB. Free memory was 84.8 MB in the beginning and 82.4 MB in the end (delta: 2.3 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 03:21:34,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b27ade8-757c-4a3c-97f6-54d7d80a754e/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...