./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.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_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/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_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/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_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/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 f50c7bc2857aa84cb02200a831151d15e1603828dabc8b6cfed5e5d60ae2ee71 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:38:53,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:38:53,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:38:53,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:38:53,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:38:53,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:38:53,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:38:53,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:38:53,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:38:53,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:38:53,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:38:53,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:38:53,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:38:53,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:38:53,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:38:53,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:38:53,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:38:53,492 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:38:53,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:38:53,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:38:53,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:38:53,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:38:53,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:38:53,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:38:53,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:38:53,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:38:53,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:38:53,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:38:53,534 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:38:53,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:38:53,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:38:53,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:38:53,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:38:53,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:38:53,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:38:53,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:38:53,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:38:53,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:38:53,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:38:53,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:38:53,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:38:53,553 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:38:53,607 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:38:53,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:38:53,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:38:53,609 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:38:53,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:38:53,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:38:53,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:38:53,611 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:38:53,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:38:53,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:38:53,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:38:53,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:38:53,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:38:53,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:38:53,622 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:38:53,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:38:53,623 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:38:53,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:38:53,623 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:38:53,623 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:38:53,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:38:53,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:38:53,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:38:53,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:38:53,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:38:53,625 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:38:53,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:38:53,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:38:53,626 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_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f50c7bc2857aa84cb02200a831151d15e1603828dabc8b6cfed5e5d60ae2ee71 [2021-11-23 00:38:53,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:38:53,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:38:53,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:38:53,993 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:38:53,994 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:38:53,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.c [2021-11-23 00:38:54,093 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/bin/ukojak-LBtLqBUTdQ/data/b1b7f1464/b6e7146e0e904d228a790c4838c7ad52/FLAG603625331 [2021-11-23 00:38:54,580 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:38:54,580 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.c [2021-11-23 00:38:54,589 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/bin/ukojak-LBtLqBUTdQ/data/b1b7f1464/b6e7146e0e904d228a790c4838c7ad52/FLAG603625331 [2021-11-23 00:38:54,906 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/bin/ukojak-LBtLqBUTdQ/data/b1b7f1464/b6e7146e0e904d228a790c4838c7ad52 [2021-11-23 00:38:54,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:38:54,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:38:54,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:38:54,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:38:54,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:38:54,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:38:54" (1/1) ... [2021-11-23 00:38:54,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af01cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:54, skipping insertion in model container [2021-11-23 00:38:54,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:38:54" (1/1) ... [2021-11-23 00:38:54,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:38:54,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:38:55,166 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_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.c[588,601] [2021-11-23 00:38:55,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:38:55,204 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:38:55,224 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_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.c[588,601] [2021-11-23 00:38:55,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:38:55,270 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:38:55,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:55 WrapperNode [2021-11-23 00:38:55,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:38:55,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:38:55,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:38:55,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:38:55,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:55" (1/1) ... [2021-11-23 00:38:55,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:55" (1/1) ... [2021-11-23 00:38:55,315 INFO L137 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 49 [2021-11-23 00:38:55,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:38:55,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:38:55,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:38:55,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:38:55,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:55" (1/1) ... [2021-11-23 00:38:55,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:55" (1/1) ... [2021-11-23 00:38:55,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:55" (1/1) ... [2021-11-23 00:38:55,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:55" (1/1) ... [2021-11-23 00:38:55,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:55" (1/1) ... [2021-11-23 00:38:55,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:55" (1/1) ... [2021-11-23 00:38:55,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:55" (1/1) ... [2021-11-23 00:38:55,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:38:55,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:38:55,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:38:55,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:38:55,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:55" (1/1) ... [2021-11-23 00:38:55,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:38:55,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:38:55,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:38:55,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:38:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:38:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:38:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:38:55,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:38:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 00:38:55,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 00:38:55,521 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:38:55,525 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:38:55,683 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:38:55,703 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:38:55,703 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:38:55,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:38:55 BoogieIcfgContainer [2021-11-23 00:38:55,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:38:55,708 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:38:55,711 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:38:55,723 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:38:55,723 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:38:55" (1/1) ... [2021-11-23 00:38:55,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:38:55,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:55,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 36 transitions. [2021-11-23 00:38:55,809 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions. [2021-11-23 00:38:55,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 00:38:55,812 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:55,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:55,987 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 00:38:56,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:56,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2021-11-23 00:38:56,013 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2021-11-23 00:38:56,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:38:56,014 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:56,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:56,096 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 00:38:56,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:56,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2021-11-23 00:38:56,174 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2021-11-23 00:38:56,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:38:56,180 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:56,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:56,372 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 00:38:56,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:56,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 30 states and 53 transitions. [2021-11-23 00:38:56,882 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 53 transitions. [2021-11-23 00:38:56,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 00:38:56,890 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:56,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:56,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:38:56,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:57,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:38:57,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:57,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 34 states and 61 transitions. [2021-11-23 00:38:57,796 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 61 transitions. [2021-11-23 00:38:57,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 00:38:57,798 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:57,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:57,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:38:57,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:58,020 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:38:58,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:58,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 39 states and 72 transitions. [2021-11-23 00:38:58,786 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 72 transitions. [2021-11-23 00:38:58,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 00:38:58,787 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:58,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:58,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:38:58,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:58,979 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:38:59,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:59,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 41 states and 77 transitions. [2021-11-23 00:38:59,295 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 77 transitions. [2021-11-23 00:38:59,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 00:38:59,296 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:59,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:59,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:38:59,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:59,497 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:38:59,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:59,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 42 states and 80 transitions. [2021-11-23 00:38:59,581 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 80 transitions. [2021-11-23 00:38:59,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 00:38:59,587 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:59,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:59,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:38:59,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:59,806 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:39:00,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:00,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 43 states and 79 transitions. [2021-11-23 00:39:00,434 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 79 transitions. [2021-11-23 00:39:00,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 00:39:00,436 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:00,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:00,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:39:00,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:00,732 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:39:02,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:02,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 55 states and 124 transitions. [2021-11-23 00:39:02,413 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 124 transitions. [2021-11-23 00:39:02,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 00:39:02,416 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:02,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:02,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:39:02,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:02,712 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:39:03,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:03,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 58 states and 129 transitions. [2021-11-23 00:39:03,459 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 129 transitions. [2021-11-23 00:39:03,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 00:39:03,461 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:03,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:03,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 00:39:03,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:03,699 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:39:04,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:04,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 60 states and 140 transitions. [2021-11-23 00:39:04,478 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 140 transitions. [2021-11-23 00:39:04,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 00:39:04,480 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:04,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:04,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 00:39:04,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:04,826 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:39:06,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:06,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 64 states and 151 transitions. [2021-11-23 00:39:06,063 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 151 transitions. [2021-11-23 00:39:06,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 00:39:06,066 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:06,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:06,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 00:39:06,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:06,359 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:39:06,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:06,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 64 states and 150 transitions. [2021-11-23 00:39:06,851 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 150 transitions. [2021-11-23 00:39:06,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 00:39:06,853 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:06,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:06,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:39:06,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:07,035 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-23 00:39:07,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:07,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 67 states and 166 transitions. [2021-11-23 00:39:07,423 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 166 transitions. [2021-11-23 00:39:07,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 00:39:07,425 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:07,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:07,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 00:39:07,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:07,704 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-23 00:39:08,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:08,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 70 states and 179 transitions. [2021-11-23 00:39:08,976 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 179 transitions. [2021-11-23 00:39:08,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 00:39:08,978 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:08,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:09,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 00:39:09,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:09,185 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-23 00:39:09,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:09,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 68 states and 170 transitions. [2021-11-23 00:39:09,792 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 170 transitions. [2021-11-23 00:39:09,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 00:39:09,795 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:09,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:09,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:39:09,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:09,991 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:39:10,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:10,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 70 states and 178 transitions. [2021-11-23 00:39:10,205 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 178 transitions. [2021-11-23 00:39:10,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-23 00:39:10,206 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:10,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:10,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-23 00:39:10,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:10,510 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:39:11,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:11,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 71 states and 182 transitions. [2021-11-23 00:39:11,246 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 182 transitions. [2021-11-23 00:39:11,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 00:39:11,247 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:11,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:11,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:39:11,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:11,785 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 29 proven. 13 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-23 00:39:11,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:11,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 72 states and 184 transitions. [2021-11-23 00:39:11,943 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 184 transitions. [2021-11-23 00:39:11,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 00:39:11,945 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:11,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:11,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:39:11,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:12,237 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 00:39:13,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:13,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 73 states and 190 transitions. [2021-11-23 00:39:13,098 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 190 transitions. [2021-11-23 00:39:13,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-23 00:39:13,099 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:13,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:13,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:39:13,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:14,100 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 28 proven. 19 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-23 00:39:16,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:16,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 75 states and 196 transitions. [2021-11-23 00:39:16,438 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 196 transitions. [2021-11-23 00:39:16,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:39:16,440 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:16,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:16,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:39:16,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:16,595 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 39 proven. 13 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-23 00:39:16,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:16,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 75 states and 194 transitions. [2021-11-23 00:39:16,960 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 194 transitions. [2021-11-23 00:39:16,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 00:39:16,961 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:16,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:16,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 00:39:17,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:17,262 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-23 00:39:18,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:18,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 78 states and 198 transitions. [2021-11-23 00:39:18,148 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 198 transitions. [2021-11-23 00:39:18,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 00:39:18,150 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:18,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:18,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:39:18,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:18,454 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-23 00:39:21,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:21,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 93 states and 271 transitions. [2021-11-23 00:39:21,086 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 271 transitions. [2021-11-23 00:39:21,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 00:39:21,088 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:21,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:21,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:39:21,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:21,307 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-23 00:39:21,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:21,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 51 states and 130 transitions. [2021-11-23 00:39:21,927 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 130 transitions. [2021-11-23 00:39:21,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 00:39:21,929 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:21,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:21,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 00:39:21,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:22,697 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 00:39:22,734 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 00:39:25,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:25,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 53 states and 142 transitions. [2021-11-23 00:39:25,519 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 142 transitions. [2021-11-23 00:39:25,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-23 00:39:25,520 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:25,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:39:25,584 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:39:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:39:25,792 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 27 iterations. [2021-11-23 00:39:25,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:39:25 ImpRootNode [2021-11-23 00:39:25,848 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:39:25,848 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:39:25,848 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:39:25,849 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:39:25,850 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:38:55" (3/4) ... [2021-11-23 00:39:25,852 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 00:39:25,970 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:39:25,970 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:39:25,972 INFO L158 Benchmark]: Toolchain (without parser) took 31060.97ms. Allocated memory was 107.0MB in the beginning and 237.0MB in the end (delta: 130.0MB). Free memory was 69.4MB in the beginning and 189.9MB in the end (delta: -120.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:39:25,972 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 107.0MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:39:25,973 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.99ms. Allocated memory is still 107.0MB. Free memory was 69.2MB in the beginning and 80.5MB in the end (delta: -11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:39:25,974 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.16ms. Allocated memory is still 107.0MB. Free memory was 80.5MB in the beginning and 79.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:39:25,975 INFO L158 Benchmark]: Boogie Preprocessor took 26.72ms. Allocated memory is still 107.0MB. Free memory was 79.0MB in the beginning and 78.1MB in the end (delta: 911.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:39:25,976 INFO L158 Benchmark]: RCFGBuilder took 363.15ms. Allocated memory is still 107.0MB. Free memory was 78.1MB in the beginning and 67.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 00:39:25,977 INFO L158 Benchmark]: CodeCheck took 30139.51ms. Allocated memory was 107.0MB in the beginning and 237.0MB in the end (delta: 130.0MB). Free memory was 67.6MB in the beginning and 193.0MB in the end (delta: -125.5MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2021-11-23 00:39:25,978 INFO L158 Benchmark]: Witness Printer took 122.41ms. Allocated memory is still 237.0MB. Free memory was 193.0MB in the beginning and 189.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:39:25,982 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, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 30.0s, OverallIterations: 27, 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, 2675 SdHoareTripleChecker+Valid, 36.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 303 mSDsluCounter, 1360 SdHoareTripleChecker+Invalid, 31.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 172 mSDsCounter, 4567 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13332 IncrementalHoareTripleChecker+Invalid, 17899 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4567 mSolverCounterUnsat, 1188 mSDtfsCounter, 13332 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10532 GetRequests, 9946 SyntacticMatches, 272 SemanticMatches, 314 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50008 ImplicationChecksByTransitivity, 20.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 1100 NumberOfCodeBlocks, 1100 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 1006 ConstructedInterpolants, 0 QuantifiedInterpolants, 3196 SizeOfPredicates, 30 NumberOfNonLiveVariables, 2836 ConjunctsInSsa, 234 ConjunctsInUnsatCore, 26 InterpolantComputations, 10 PerfectInterpolantSequences, 2516/2634 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 - CounterExampleResult [Line: 17]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L22] int counter = 0; [L24] short a; [L25] long long n, x, y, z; [L26] a = __VERIFIER_nondet_ushort() [L28] n = 0 [L29] x = 0 [L30] y = 1 [L31] z = 6 VAL [a=2, counter=0, n=0, x=0, y=1, z=6] [L33] EXPR counter++ VAL [a=2, counter=1, counter++=0, n=0, x=0, y=1, z=6] [L33] COND TRUE counter++<2 [L34] CALL __VERIFIER_assert(z == 6 * n + 6) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L34] RET __VERIFIER_assert(z == 6 * n + 6) VAL [a=2, counter=1, n=0, x=0, y=1, z=6] [L35] CALL __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L35] RET __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [a=2, counter=1, n=0, x=0, y=1, z=6] [L36] CALL __VERIFIER_assert(x == n * n * n) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L36] RET __VERIFIER_assert(x == n * n * n) VAL [a=2, counter=1, n=0, x=0, y=1, z=6] [L37] CALL __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L37] RET __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [a=2, counter=1, n=0, x=0, y=1, z=6] [L38] CALL __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L38] RET __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [a=2, counter=1, n=0, x=0, y=1, z=6] [L39] COND FALSE !(!(n <= a)) [L42] n = n + 1 [L43] x = x + y [L44] y = y + z [L45] z = z + 6 VAL [a=2, counter=1, n=1, x=1, y=7, z=12] [L33] EXPR counter++ VAL [a=2, counter=2, counter++=1, n=1, x=1, y=7, z=12] [L33] COND TRUE counter++<2 [L34] CALL __VERIFIER_assert(z == 6 * n + 6) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L34] RET __VERIFIER_assert(z == 6 * n + 6) VAL [a=2, counter=2, n=1, x=1, y=7, z=12] [L35] CALL __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L35] RET __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [a=2, counter=2, n=1, x=1, y=7, z=12] [L36] CALL __VERIFIER_assert(x == n * n * n) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L36] RET __VERIFIER_assert(x == n * n * n) VAL [a=2, counter=2, n=1, x=1, y=7, z=12] [L37] CALL __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L37] RET __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [a=2, counter=2, n=1, x=1, y=7, z=12] [L38] CALL __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L38] RET __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [a=2, counter=2, n=1, x=1, y=7, z=12] [L39] COND FALSE !(!(n <= a)) [L42] n = n + 1 [L43] x = x + y [L44] y = y + z [L45] z = z + 6 VAL [a=2, counter=2, n=2, x=8, y=19, z=18] [L33] EXPR counter++ VAL [a=2, counter=3, counter++=2, n=2, x=8, y=19, z=18] [L33] COND FALSE !(counter++<2) [L48] CALL __VERIFIER_assert(z == 6*n + 6) VAL [\old(cond)=1, counter=3] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=3] [L48] RET __VERIFIER_assert(z == 6*n + 6) VAL [a=2, counter=3, n=2, x=8, y=19, z=18] [L49] CALL __VERIFIER_assert(6*a*x - x*z + 12*x == 0) VAL [\old(cond)=0, counter=3] [L15] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=3] [L17] reach_error() VAL [\old(cond)=0, cond=0, counter=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 107.0MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.99ms. Allocated memory is still 107.0MB. Free memory was 69.2MB in the beginning and 80.5MB in the end (delta: -11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.16ms. Allocated memory is still 107.0MB. Free memory was 80.5MB in the beginning and 79.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.72ms. Allocated memory is still 107.0MB. Free memory was 79.0MB in the beginning and 78.1MB in the end (delta: 911.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 363.15ms. Allocated memory is still 107.0MB. Free memory was 78.1MB in the beginning and 67.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 30139.51ms. Allocated memory was 107.0MB in the beginning and 237.0MB in the end (delta: 130.0MB). Free memory was 67.6MB in the beginning and 193.0MB in the end (delta: -125.5MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * Witness Printer took 122.41ms. Allocated memory is still 237.0MB. Free memory was 193.0MB in the beginning and 189.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 00:39:26,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5d87c2-e6fe-47f6-8308-7f6dc9dc21d0/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE