./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff32197-505a-4d9e-bdc7-17f9acef5db2/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff32197-505a-4d9e-bdc7-17f9acef5db2/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_4ff32197-505a-4d9e-bdc7-17f9acef5db2/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff32197-505a-4d9e-bdc7-17f9acef5db2/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff32197-505a-4d9e-bdc7-17f9acef5db2/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_4ff32197-505a-4d9e-bdc7-17f9acef5db2/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 41e3b99a8739a64ea08b115c1bc63941cba76a5cda04966369ff0f88d0ee65cc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:36:32,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:36:32,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:36:32,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:36:32,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:36:32,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:36:32,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:36:32,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:36:32,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:36:32,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:36:32,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:36:32,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:36:32,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:36:32,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:36:32,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:36:32,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:36:32,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:36:32,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:36:32,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:36:32,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:36:32,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:36:32,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:36:32,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:36:32,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:36:32,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:36:32,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:36:32,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:36:32,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:36:32,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:36:32,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:36:32,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:36:32,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:36:32,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:36:32,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:36:32,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:36:32,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:36:32,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:36:32,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:36:32,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:36:32,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:36:32,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:36:32,626 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff32197-505a-4d9e-bdc7-17f9acef5db2/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:36:32,658 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:36:32,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:36:32,660 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:36:32,660 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:36:32,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:36:32,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:36:32,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:36:32,661 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:36:32,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:36:32,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:36:32,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:36:32,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:36:32,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:36:32,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:36:32,664 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:36:32,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:36:32,664 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:36:32,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:36:32,665 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:36:32,665 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:36:32,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:36:32,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:36:32,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:36:32,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:36:32,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:36:32,666 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:36:32,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:36:32,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:36:32,667 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_4ff32197-505a-4d9e-bdc7-17f9acef5db2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff32197-505a-4d9e-bdc7-17f9acef5db2/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41e3b99a8739a64ea08b115c1bc63941cba76a5cda04966369ff0f88d0ee65cc [2021-11-23 00:36:32,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:36:32,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:36:32,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:36:32,984 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:36:32,985 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:36:32,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff32197-505a-4d9e-bdc7-17f9acef5db2/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c [2021-11-23 00:36:33,072 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff32197-505a-4d9e-bdc7-17f9acef5db2/bin/ukojak-LBtLqBUTdQ/data/4ae7e823a/23ebc0bda348414f9e47744e6fa3c967/FLAGa05a00354 [2021-11-23 00:36:33,536 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:36:33,537 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff32197-505a-4d9e-bdc7-17f9acef5db2/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c [2021-11-23 00:36:33,548 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff32197-505a-4d9e-bdc7-17f9acef5db2/bin/ukojak-LBtLqBUTdQ/data/4ae7e823a/23ebc0bda348414f9e47744e6fa3c967/FLAGa05a00354 [2021-11-23 00:36:33,913 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff32197-505a-4d9e-bdc7-17f9acef5db2/bin/ukojak-LBtLqBUTdQ/data/4ae7e823a/23ebc0bda348414f9e47744e6fa3c967 [2021-11-23 00:36:33,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:36:33,917 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:36:33,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:36:33,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:36:33,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:36:33,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:36:33" (1/1) ... [2021-11-23 00:36:33,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67dfcffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:33, skipping insertion in model container [2021-11-23 00:36:33,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:36:33" (1/1) ... [2021-11-23 00:36:33,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:36:33,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:36:34,095 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_4ff32197-505a-4d9e-bdc7-17f9acef5db2/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c[458,471] [2021-11-23 00:36:34,136 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:36:34,155 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:36:34,175 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_4ff32197-505a-4d9e-bdc7-17f9acef5db2/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c[458,471] [2021-11-23 00:36:34,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:36:34,208 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:36:34,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:34 WrapperNode [2021-11-23 00:36:34,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:36:34,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:36:34,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:36:34,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:36:34,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:34" (1/1) ... [2021-11-23 00:36:34,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:34" (1/1) ... [2021-11-23 00:36:34,249 INFO L137 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2021-11-23 00:36:34,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:36:34,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:36:34,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:36:34,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:36:34,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:34" (1/1) ... [2021-11-23 00:36:34,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:34" (1/1) ... [2021-11-23 00:36:34,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:34" (1/1) ... [2021-11-23 00:36:34,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:34" (1/1) ... [2021-11-23 00:36:34,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:34" (1/1) ... [2021-11-23 00:36:34,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:34" (1/1) ... [2021-11-23 00:36:34,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:34" (1/1) ... [2021-11-23 00:36:34,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:36:34,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:36:34,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:36:34,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:36:34,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:34" (1/1) ... [2021-11-23 00:36:34,300 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:36:34,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff32197-505a-4d9e-bdc7-17f9acef5db2/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:36:34,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff32197-505a-4d9e-bdc7-17f9acef5db2/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:36:34,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff32197-505a-4d9e-bdc7-17f9acef5db2/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:36:34,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:36:34,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:36:34,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:36:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:36:34,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 00:36:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 00:36:34,443 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:36:34,445 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:36:34,540 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:36:34,564 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:36:34,564 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:36:34,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:36:34 BoogieIcfgContainer [2021-11-23 00:36:34,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:36:34,568 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:36:34,568 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:36:34,592 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:36:34,592 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:36:34" (1/1) ... [2021-11-23 00:36:34,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:36:34,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:34,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2021-11-23 00:36:34,665 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-11-23 00:36:34,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 00:36:34,668 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:34,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:34,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:36:34,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:34,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:36:34,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:34,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2021-11-23 00:36:34,977 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2021-11-23 00:36:34,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 00:36:34,982 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:34,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:35,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:36:35,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:35,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:36:35,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:35,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2021-11-23 00:36:35,619 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2021-11-23 00:36:35,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 00:36:35,620 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:35,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:35,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:36:35,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:35,811 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:36:36,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:36,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2021-11-23 00:36:36,143 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2021-11-23 00:36:36,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 00:36:36,144 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:36,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:36,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:36:36,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:36,421 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 00:36:36,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:36,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2021-11-23 00:36:36,777 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2021-11-23 00:36:36,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 00:36:36,778 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:36,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:36,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 00:36:36,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:37,016 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:36:37,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:37,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2021-11-23 00:36:37,397 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2021-11-23 00:36:37,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 00:36:37,399 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:37,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:37,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 00:36:37,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:37,681 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:36:38,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:38,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2021-11-23 00:36:38,159 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2021-11-23 00:36:38,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 00:36:38,160 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:38,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:38,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 00:36:38,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:38,412 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 12 proven. 50 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:36:38,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:38,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2021-11-23 00:36:38,995 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2021-11-23 00:36:38,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 00:36:38,997 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:38,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:39,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 00:36:39,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:39,472 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:36:41,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:41,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 26 states and 36 transitions. [2021-11-23 00:36:41,266 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2021-11-23 00:36:41,267 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 00:36:41,268 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2021-11-23 00:36:41,277 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 00:36:41,424 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 00:36:41,428 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 00:36:41,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:36:41 ImpRootNode [2021-11-23 00:36:41,428 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:36:41,429 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:36:41,429 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:36:41,429 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:36:41,430 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:36:34" (3/4) ... [2021-11-23 00:36:41,433 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 00:36:41,438 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-23 00:36:41,442 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-11-23 00:36:41,442 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-23 00:36:41,443 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 00:36:41,443 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 00:36:41,490 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff32197-505a-4d9e-bdc7-17f9acef5db2/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:36:41,490 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:36:41,491 INFO L158 Benchmark]: Toolchain (without parser) took 7573.58ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 71.8MB in the beginning and 87.2MB in the end (delta: -15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 00:36:41,492 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 87.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:36:41,492 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.99ms. Allocated memory is still 113.2MB. Free memory was 71.6MB in the beginning and 87.4MB in the end (delta: -15.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 00:36:41,493 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.38ms. Allocated memory is still 113.2MB. Free memory was 87.4MB in the beginning and 86.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:36:41,494 INFO L158 Benchmark]: Boogie Preprocessor took 38.08ms. Allocated memory is still 113.2MB. Free memory was 86.2MB in the beginning and 85.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:36:41,494 INFO L158 Benchmark]: RCFGBuilder took 277.24ms. Allocated memory is still 113.2MB. Free memory was 85.1MB in the beginning and 75.3MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 00:36:41,495 INFO L158 Benchmark]: CodeCheck took 6860.75ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 75.3MB in the beginning and 90.3MB in the end (delta: -14.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 00:36:41,496 INFO L158 Benchmark]: Witness Printer took 61.62ms. Allocated memory is still 144.7MB. Free memory was 90.3MB in the beginning and 87.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:36:41,499 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 227 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 272 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 188 mSDsCounter, 306 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 637 IncrementalHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 306 mSolverCounterUnsat, 84 mSDtfsCounter, 637 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1485 GetRequests, 1342 SyntacticMatches, 53 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2823 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 925 SizeOfPredicates, 12 NumberOfNonLiveVariables, 751 ConjunctsInSsa, 135 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 229/331 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 87.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.99ms. Allocated memory is still 113.2MB. Free memory was 71.6MB in the beginning and 87.4MB in the end (delta: -15.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.38ms. Allocated memory is still 113.2MB. Free memory was 87.4MB in the beginning and 86.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.08ms. Allocated memory is still 113.2MB. Free memory was 86.2MB in the beginning and 85.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 277.24ms. Allocated memory is still 113.2MB. Free memory was 85.1MB in the beginning and 75.3MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 6860.75ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 75.3MB in the beginning and 90.3MB in the end (delta: -14.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 61.62ms. Allocated memory is still 144.7MB. Free memory was 90.3MB in the beginning and 87.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 00:36:41,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff32197-505a-4d9e-bdc7-17f9acef5db2/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE