./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/bin/ukojak-fKGseLULKY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/bin/ukojak-fKGseLULKY/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/bin/ukojak-fKGseLULKY --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 0036602275d14d2f63e3aedc245d67d50c1210f9 ............................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 03:32:21,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 03:32:21,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 03:32:21,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 03:32:21,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 03:32:21,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 03:32:21,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 03:32:21,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 03:32:21,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 03:32:21,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 03:32:21,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 03:32:21,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 03:32:21,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 03:32:21,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 03:32:21,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 03:32:21,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 03:32:21,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 03:32:21,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 03:32:21,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 03:32:21,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 03:32:21,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 03:32:21,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 03:32:21,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 03:32:21,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 03:32:21,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 03:32:21,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 03:32:21,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 03:32:21,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 03:32:21,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 03:32:21,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 03:32:21,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 03:32:21,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 03:32:21,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 03:32:21,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 03:32:21,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 03:32:21,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 03:32:21,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 03:32:21,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 03:32:21,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 03:32:21,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 03:32:21,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 03:32:21,452 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/bin/ukojak-fKGseLULKY/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-13 03:32:21,511 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 03:32:21,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 03:32:21,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 03:32:21,514 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 03:32:21,515 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 03:32:21,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 03:32:21,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 03:32:21,517 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 03:32:21,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 03:32:21,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 03:32:21,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 03:32:21,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 03:32:21,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 03:32:21,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 03:32:21,529 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 03:32:21,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 03:32:21,529 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 03:32:21,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 03:32:21,530 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 03:32:21,530 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 03:32:21,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 03:32:21,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 03:32:21,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 03:32:21,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 03:32:21,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 03:32:21,532 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 03:32:21,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 03:32:21,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 03:32:21,533 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_7191abbb-7be6-4aa3-bc7d-747fae644a28/bin/ukojak-fKGseLULKY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0036602275d14d2f63e3aedc245d67d50c1210f9 [2021-10-13 03:32:21,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 03:32:21,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 03:32:21,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 03:32:21,965 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 03:32:21,966 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 03:32:21,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c [2021-10-13 03:32:22,056 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/bin/ukojak-fKGseLULKY/data/929bf8280/0eab3032fdd84fa48f8304a0d52d132a/FLAG36fd095e2 [2021-10-13 03:32:22,669 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 03:32:22,669 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c [2021-10-13 03:32:22,678 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/bin/ukojak-fKGseLULKY/data/929bf8280/0eab3032fdd84fa48f8304a0d52d132a/FLAG36fd095e2 [2021-10-13 03:32:23,033 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/bin/ukojak-fKGseLULKY/data/929bf8280/0eab3032fdd84fa48f8304a0d52d132a [2021-10-13 03:32:23,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 03:32:23,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 03:32:23,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 03:32:23,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 03:32:23,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 03:32:23,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:32:23" (1/1) ... [2021-10-13 03:32:23,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cda5cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:32:23, skipping insertion in model container [2021-10-13 03:32:23,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:32:23" (1/1) ... [2021-10-13 03:32:23,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 03:32:23,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 03:32:23,323 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c[520,533] [2021-10-13 03:32:23,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 03:32:23,356 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 03:32:23,372 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c[520,533] [2021-10-13 03:32:23,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 03:32:23,398 INFO L208 MainTranslator]: Completed translation [2021-10-13 03:32:23,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:32:23 WrapperNode [2021-10-13 03:32:23,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 03:32:23,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 03:32:23,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 03:32:23,400 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 03:32:23,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:32:23" (1/1) ... [2021-10-13 03:32:23,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:32:23" (1/1) ... [2021-10-13 03:32:23,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 03:32:23,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 03:32:23,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 03:32:23,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 03:32:23,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:32:23" (1/1) ... [2021-10-13 03:32:23,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:32:23" (1/1) ... [2021-10-13 03:32:23,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:32:23" (1/1) ... [2021-10-13 03:32:23,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:32:23" (1/1) ... [2021-10-13 03:32:23,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:32:23" (1/1) ... [2021-10-13 03:32:23,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:32:23" (1/1) ... [2021-10-13 03:32:23,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:32:23" (1/1) ... [2021-10-13 03:32:23,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 03:32:23,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 03:32:23,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 03:32:23,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 03:32:23,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:32:23" (1/1) ... [2021-10-13 03:32:23,496 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 03:32:23,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/bin/ukojak-fKGseLULKY/z3 [2021-10-13 03:32:23,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 03:32:23,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 03:32:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 03:32:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 03:32:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 03:32:23,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 03:32:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-10-13 03:32:23,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-10-13 03:32:23,934 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 03:32:23,935 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-13 03:32:23,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:32:23 BoogieIcfgContainer [2021-10-13 03:32:23,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 03:32:23,939 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 03:32:23,940 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 03:32:23,953 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 03:32:23,953 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:32:23" (1/1) ... [2021-10-13 03:32:23,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 03:32:24,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:24,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2021-10-13 03:32:24,049 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2021-10-13 03:32:24,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 03:32:24,051 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:32:24,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:32:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:32:24,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:32:24,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:24,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2021-10-13 03:32:24,301 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2021-10-13 03:32:24,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 03:32:24,301 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:32:24,302 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:32:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:32:24,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:32:24,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:24,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2021-10-13 03:32:24,434 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2021-10-13 03:32:24,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 03:32:24,435 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:32:24,435 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:32:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:32:24,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:32:24,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:24,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 25 states and 40 transitions. [2021-10-13 03:32:24,938 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 40 transitions. [2021-10-13 03:32:24,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 03:32:24,948 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:32:24,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:32:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:32:25,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 03:32:25,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 03:32:25,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:32:25,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:25,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 49 transitions. [2021-10-13 03:32:25,981 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 49 transitions. [2021-10-13 03:32:25,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 03:32:25,982 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:32:25,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:32:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:32:26,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 03:32:26,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 03:32:26,229 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 03:32:26,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:26,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 31 states and 54 transitions. [2021-10-13 03:32:26,371 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2021-10-13 03:32:26,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 03:32:26,373 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:32:26,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:32:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:32:26,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 03:32:26,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 03:32:26,722 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 03:32:27,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:27,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 33 states and 58 transitions. [2021-10-13 03:32:27,266 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 58 transitions. [2021-10-13 03:32:27,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 03:32:27,268 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:32:27,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:32:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:32:27,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 03:32:27,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 03:32:27,502 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-13 03:32:28,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:28,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 37 states and 66 transitions. [2021-10-13 03:32:28,201 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 66 transitions. [2021-10-13 03:32:28,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 03:32:28,203 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:32:28,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:32:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:32:28,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 03:32:28,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 03:32:28,472 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-13 03:32:29,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:29,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 47 states and 101 transitions. [2021-10-13 03:32:29,894 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 101 transitions. [2021-10-13 03:32:29,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 03:32:29,897 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:32:29,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:32:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:32:29,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 03:32:29,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 03:32:30,136 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-13 03:32:30,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:30,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 49 states and 102 transitions. [2021-10-13 03:32:30,556 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 102 transitions. [2021-10-13 03:32:30,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 03:32:30,558 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:32:30,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:32:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:32:30,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 03:32:30,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 03:32:30,776 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-13 03:32:31,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:31,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 51 states and 109 transitions. [2021-10-13 03:32:31,350 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 109 transitions. [2021-10-13 03:32:31,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-13 03:32:31,352 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:32:31,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:32:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:32:31,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-13 03:32:31,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 03:32:31,677 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-13 03:32:32,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:32,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 53 states and 118 transitions. [2021-10-13 03:32:32,778 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 118 transitions. [2021-10-13 03:32:32,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-13 03:32:32,780 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:32:32,781 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:32:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:32:32,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-13 03:32:32,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 03:32:33,039 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-13 03:32:33,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:33,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 52 states and 113 transitions. [2021-10-13 03:32:33,645 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 113 transitions. [2021-10-13 03:32:33,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 03:32:33,647 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:32:33,647 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:32:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:32:33,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 03:32:33,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 03:32:34,117 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-13 03:32:34,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:34,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 52 states and 112 transitions. [2021-10-13 03:32:34,869 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 112 transitions. [2021-10-13 03:32:34,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-13 03:32:34,871 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:32:34,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:32:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:32:34,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 03:32:34,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 03:32:35,198 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-13 03:32:35,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:35,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 53 states and 120 transitions. [2021-10-13 03:32:35,786 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 120 transitions. [2021-10-13 03:32:35,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-13 03:32:35,789 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:32:35,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:32:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:32:35,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 03:32:35,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 03:32:35,943 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-10-13 03:32:36,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:36,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 54 states and 122 transitions. [2021-10-13 03:32:36,145 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 122 transitions. [2021-10-13 03:32:36,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-13 03:32:36,148 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:32:36,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:32:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:32:36,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-13 03:32:36,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 03:32:36,541 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-10-13 03:32:37,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:37,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 57 states and 130 transitions. [2021-10-13 03:32:37,341 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 130 transitions. [2021-10-13 03:32:37,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-13 03:32:37,343 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:32:37,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:32:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:32:37,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 03:32:37,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 03:32:37,679 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-13 03:32:40,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:40,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 38 states and 63 transitions. [2021-10-13 03:32:40,130 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 63 transitions. [2021-10-13 03:32:40,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-13 03:32:40,131 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:32:40,132 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:32:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:32:40,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 03:32:40,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 03:32:40,297 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-13 03:32:40,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:40,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 38 states and 62 transitions. [2021-10-13 03:32:40,487 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2021-10-13 03:32:40,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-13 03:32:40,488 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:32:40,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:32:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:32:40,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-13 03:32:40,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 03:32:41,083 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-10-13 03:32:41,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:32:41,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 32 states and 51 transitions. [2021-10-13 03:32:41,850 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 51 transitions. [2021-10-13 03:32:41,851 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 03:32:41,851 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 20 iterations. [2021-10-13 03:32:41,859 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-13 03:32:42,373 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-13 03:32:42,377 INFO L565 CodeCheckObserver]: Invariant with dag size 28 [2021-10-13 03:32:42,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 03:32:42 ImpRootNode [2021-10-13 03:32:42,387 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 03:32:42,388 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 03:32:42,388 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 03:32:42,388 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 03:32:42,389 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:32:23" (3/4) ... [2021-10-13 03:32:42,393 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 03:32:42,401 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-10-13 03:32:42,406 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-13 03:32:42,406 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 03:32:42,406 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-13 03:32:42,407 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 03:32:42,458 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 03:32:42,458 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 03:32:42,461 INFO L168 Benchmark]: Toolchain (without parser) took 19415.78 ms. Allocated memory was 83.9 MB in the beginning and 155.2 MB in the end (delta: 71.3 MB). Free memory was 43.6 MB in the beginning and 106.5 MB in the end (delta: -62.9 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2021-10-13 03:32:42,462 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 83.9 MB. Free memory is still 60.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 03:32:42,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.20 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 43.4 MB in the beginning and 80.0 MB in the end (delta: -36.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 03:32:42,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.92 ms. Allocated memory is still 104.9 MB. Free memory was 80.0 MB in the beginning and 78.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 03:32:42,464 INFO L168 Benchmark]: Boogie Preprocessor took 27.84 ms. Allocated memory is still 104.9 MB. Free memory was 78.5 MB in the beginning and 77.5 MB in the end (delta: 991.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 03:32:42,465 INFO L168 Benchmark]: RCFGBuilder took 453.63 ms. Allocated memory is still 104.9 MB. Free memory was 77.5 MB in the beginning and 66.7 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 03:32:42,466 INFO L168 Benchmark]: CodeCheck took 18448.36 ms. Allocated memory was 104.9 MB in the beginning and 155.2 MB in the end (delta: 50.3 MB). Free memory was 66.7 MB in the beginning and 108.6 MB in the end (delta: -41.9 MB). Peak memory consumption was 72.3 MB. Max. memory is 16.1 GB. [2021-10-13 03:32:42,467 INFO L168 Benchmark]: Witness Printer took 70.56 ms. Allocated memory is still 155.2 MB. Free memory was 108.6 MB in the beginning and 106.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 03:32:42,471 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, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17873.3ms, OverallIterations: 20, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5505024 SDtfs, 108600 SDslu, 630816 SDs, 0 SdLazy, 9731368 SolverSat, 3639636 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10753.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5213 GetRequests, 4875 SyntacticMatches, 128 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20906 ImplicationChecksByTransitivity, 11846.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 107.8ms SsaConstructionTime, 406.2ms SatisfiabilityAnalysisTime, 4558.5ms InterpolantComputationTime, 524 NumberOfCodeBlocks, 524 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 505 ConstructedInterpolants, 0 QuantifiedInterpolants, 1779 SizeOfPredicates, 25 NumberOfNonLiveVariables, 1674 ConjunctsInSsa, 180 ConjunctsInUnsatCore, 19 InterpolantComputations, 5 PerfectInterpolantSequences, 677/755 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 14]: 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: 46]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((s == 2 * a + 2 && a == 1) || (1 < counter && !(t == 5 && a == 2))) || (counter <= 1 && !(t == 3 && a == 1))) || (a == 2 && s == 9) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 83.9 MB. Free memory is still 60.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 353.20 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 43.4 MB in the beginning and 80.0 MB in the end (delta: -36.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.92 ms. Allocated memory is still 104.9 MB. Free memory was 80.0 MB in the beginning and 78.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.84 ms. Allocated memory is still 104.9 MB. Free memory was 78.5 MB in the beginning and 77.5 MB in the end (delta: 991.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 453.63 ms. Allocated memory is still 104.9 MB. Free memory was 77.5 MB in the beginning and 66.7 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 18448.36 ms. Allocated memory was 104.9 MB in the beginning and 155.2 MB in the end (delta: 50.3 MB). Free memory was 66.7 MB in the beginning and 108.6 MB in the end (delta: -41.9 MB). Peak memory consumption was 72.3 MB. Max. memory is 16.1 GB. * Witness Printer took 70.56 ms. Allocated memory is still 155.2 MB. Free memory was 108.6 MB in the beginning and 106.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-13 03:32:42,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7191abbb-7be6-4aa3-bc7d-747fae644a28/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...