./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound1.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_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/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_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/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_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/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 bd4ff7f95c7aab1abb3428488ee9247a9f3cbeb30d436182472263a0c2dcf758 ........................................................................................................................................................................................................................................................................................... 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 04:08:44,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:08:44,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:08:44,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:08:44,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:08:44,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:08:44,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:08:44,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:08:44,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:08:44,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:08:44,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:08:44,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:08:44,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:08:44,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:08:44,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:08:44,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:08:44,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:08:44,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:08:44,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:08:44,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:08:44,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:08:44,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:08:44,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:08:44,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:08:44,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:08:44,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:08:44,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:08:44,311 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:08:44,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:08:44,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:08:44,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:08:44,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:08:44,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:08:44,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:08:44,318 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:08:44,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:08:44,319 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:08:44,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:08:44,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:08:44,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:08:44,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:08:44,323 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 04:08:44,360 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:08:44,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:08:44,363 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:08:44,363 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 04:08:44,364 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:08:44,364 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:08:44,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:08:44,365 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:08:44,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:08:44,365 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:08:44,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:08:44,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:08:44,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:08:44,373 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:08:44,373 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:08:44,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:08:44,373 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:08:44,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:08:44,374 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 04:08:44,374 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 04:08:44,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:08:44,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:08:44,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:08:44,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:08:44,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:08:44,375 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 04:08:44,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:08:44,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:08:44,376 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_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd4ff7f95c7aab1abb3428488ee9247a9f3cbeb30d436182472263a0c2dcf758 [2021-10-29 04:08:44,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:08:44,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:08:44,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:08:44,718 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:08:44,719 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:08:44,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound1.c [2021-10-29 04:08:44,794 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/bin/ukojak-Rh5K9KB4LI/data/44063ce0b/cf26780183f74d5086f60b054e47e354/FLAG4195c643f [2021-10-29 04:08:45,372 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:08:45,373 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound1.c [2021-10-29 04:08:45,385 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/bin/ukojak-Rh5K9KB4LI/data/44063ce0b/cf26780183f74d5086f60b054e47e354/FLAG4195c643f [2021-10-29 04:08:45,744 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/bin/ukojak-Rh5K9KB4LI/data/44063ce0b/cf26780183f74d5086f60b054e47e354 [2021-10-29 04:08:45,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:08:45,750 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:08:45,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:08:45,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:08:45,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:08:45,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:08:45" (1/1) ... [2021-10-29 04:08:45,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@276dbb55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:08:45, skipping insertion in model container [2021-10-29 04:08:45,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:08:45" (1/1) ... [2021-10-29 04:08:45,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:08:45,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:08:45,944 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_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound1.c[458,471] [2021-10-29 04:08:45,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:08:45,972 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:08:45,984 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_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound1.c[458,471] [2021-10-29 04:08:45,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:08:46,005 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:08:46,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:08:46 WrapperNode [2021-10-29 04:08:46,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:08:46,007 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:08:46,007 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:08:46,007 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:08:46,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:08:46" (1/1) ... [2021-10-29 04:08:46,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:08:46" (1/1) ... [2021-10-29 04:08:46,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:08:46,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:08:46,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:08:46,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:08:46,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:08:46" (1/1) ... [2021-10-29 04:08:46,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:08:46" (1/1) ... [2021-10-29 04:08:46,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:08:46" (1/1) ... [2021-10-29 04:08:46,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:08:46" (1/1) ... [2021-10-29 04:08:46,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:08:46" (1/1) ... [2021-10-29 04:08:46,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:08:46" (1/1) ... [2021-10-29 04:08:46,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:08:46" (1/1) ... [2021-10-29 04:08:46,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:08:46,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:08:46,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:08:46,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:08:46,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:08:46" (1/1) ... [2021-10-29 04:08:46,071 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:08:46,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 04:08:46,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 04:08:46,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 04:08:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-10-29 04:08:46,157 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-10-29 04:08:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:08:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:08:46,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:08:46,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:08:46,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-10-29 04:08:46,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-10-29 04:08:46,425 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:08:46,425 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-29 04:08:46,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:08:46 BoogieIcfgContainer [2021-10-29 04:08:46,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:08:46,429 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 04:08:46,429 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 04:08:46,439 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 04:08:46,439 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:08:46" (1/1) ... [2021-10-29 04:08:46,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:08:46,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:08:46,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2021-10-29 04:08:46,529 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2021-10-29 04:08:46,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 04:08:46,534 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:08:46,535 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:08:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:08:46,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 04:08:46,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:08:46,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2021-10-29 04:08:46,697 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2021-10-29 04:08:46,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 04:08:46,698 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:08:46,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:08:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:08:46,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 04:08:46,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:08:46,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 04:08:47,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:08:47,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2021-10-29 04:08:47,059 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2021-10-29 04:08:47,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 04:08:47,061 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:08:47,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:08:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:08:47,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:08:47,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:08:47,518 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 04:08:47,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:08:47,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2021-10-29 04:08:47,825 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2021-10-29 04:08:47,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 04:08:47,826 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:08:47,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:08:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:08:47,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:08:47,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:08:48,082 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 04:08:48,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:08:48,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2021-10-29 04:08:48,373 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2021-10-29 04:08:48,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 04:08:48,374 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:08:48,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:08:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:08:48,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:08:48,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:08:48,513 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 04:08:48,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:08:48,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 32 states and 48 transitions. [2021-10-29 04:08:48,582 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2021-10-29 04:08:48,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 04:08:48,584 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:08:48,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:08:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:08:48,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 04:08:48,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:08:48,907 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-29 04:08:49,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:08:49,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 28 states and 36 transitions. [2021-10-29 04:08:49,594 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2021-10-29 04:08:49,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 04:08:49,595 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:08:49,595 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:08:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:08:49,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 04:08:49,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:08:49,945 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-10-29 04:08:50,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:08:50,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 22 states and 28 transitions. [2021-10-29 04:08:50,911 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2021-10-29 04:08:50,912 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:08:50,912 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-10-29 04:08:50,918 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-29 04:08:51,103 INFO L565 CodeCheckObserver]: Invariant with dag size 20 [2021-10-29 04:08:51,113 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 04:08:51,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 04:08:51 ImpRootNode [2021-10-29 04:08:51,114 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 04:08:51,114 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:08:51,114 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:08:51,115 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:08:51,115 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:08:46" (3/4) ... [2021-10-29 04:08:51,118 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:08:51,123 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-10-29 04:08:51,123 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-10-29 04:08:51,127 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-10-29 04:08:51,127 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-29 04:08:51,127 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 04:08:51,127 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:08:51,166 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 04:08:51,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:08:51,168 INFO L168 Benchmark]: Toolchain (without parser) took 5417.18 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 63.0 MB in the beginning and 70.4 MB in the end (delta: -7.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. [2021-10-29 04:08:51,168 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 98.6 MB. Free memory was 68.6 MB in the beginning and 68.6 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:08:51,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.56 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 62.7 MB in the beginning and 106.5 MB in the end (delta: -43.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:08:51,170 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.32 ms. Allocated memory is still 132.1 MB. Free memory was 106.5 MB in the beginning and 105.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:08:51,171 INFO L168 Benchmark]: Boogie Preprocessor took 20.11 ms. Allocated memory is still 132.1 MB. Free memory was 105.1 MB in the beginning and 103.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:08:51,171 INFO L168 Benchmark]: RCFGBuilder took 366.62 ms. Allocated memory is still 132.1 MB. Free memory was 103.8 MB in the beginning and 92.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:08:51,172 INFO L168 Benchmark]: CodeCheck took 4684.87 ms. Allocated memory is still 132.1 MB. Free memory was 92.6 MB in the beginning and 73.5 MB in the end (delta: 19.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:08:51,172 INFO L168 Benchmark]: Witness Printer took 52.01 ms. Allocated memory is still 132.1 MB. Free memory was 73.5 MB in the beginning and 70.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:08:51,176 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1672 SDtfs, 366 SDslu, 416 SDs, 0 SdLazy, 2480 SolverSat, 866 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1159 GetRequests, 1077 SyntacticMatches, 12 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1674 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 414 SizeOfPredicates, 8 NumberOfNonLiveVariables, 506 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 57/64 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: 28]: Loop Invariant Derived loop invariant: ((0 < k && c <= 1) || !(y == 1 && y * y * y * y == x)) || !((0 <= k && k <= 1) && 1 <= c) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 98.6 MB. Free memory was 68.6 MB in the beginning and 68.6 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 254.56 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 62.7 MB in the beginning and 106.5 MB in the end (delta: -43.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.32 ms. Allocated memory is still 132.1 MB. Free memory was 106.5 MB in the beginning and 105.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.11 ms. Allocated memory is still 132.1 MB. Free memory was 105.1 MB in the beginning and 103.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 366.62 ms. Allocated memory is still 132.1 MB. Free memory was 103.8 MB in the beginning and 92.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 4684.87 ms. Allocated memory is still 132.1 MB. Free memory was 92.6 MB in the beginning and 73.5 MB in the end (delta: 19.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. * Witness Printer took 52.01 ms. Allocated memory is still 132.1 MB. Free memory was 73.5 MB in the beginning and 70.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-29 04:08:51,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc64dd-a025-4195-99ba-8ff1fc9faf4f/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request...