./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c2283dcb-2cc5-496d-838e-f179dcf89c4e/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c2283dcb-2cc5-496d-838e-f179dcf89c4e/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c2283dcb-2cc5-496d-838e-f179dcf89c4e/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c2283dcb-2cc5-496d-838e-f179dcf89c4e/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c2283dcb-2cc5-496d-838e-f179dcf89c4e/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c2283dcb-2cc5-496d-838e-f179dcf89c4e/bin/ukojak --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 d74df1b7449c0e223ad61b2c5cd0b2b79a63ca78 ................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:37:47,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:37:47,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:37:47,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:37:47,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:37:47,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:37:47,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:37:47,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:37:47,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:37:47,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:37:47,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:37:47,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:37:47,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:37:47,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:37:47,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:37:47,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:37:47,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:37:47,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:37:47,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:37:47,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:37:47,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:37:47,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:37:47,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:37:47,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:37:47,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:37:47,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:37:47,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:37:47,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:37:47,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:37:47,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:37:47,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:37:47,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:37:47,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:37:47,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:37:47,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:37:47,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:37:47,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:37:47,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:37:47,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:37:47,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:37:47,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:37:47,550 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c2283dcb-2cc5-496d-838e-f179dcf89c4e/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:37:47,587 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:37:47,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:37:47,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:37:47,588 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:37:47,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:37:47,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:37:47,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:37:47,590 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:37:47,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:37:47,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:37:47,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:37:47,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:37:47,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:37:47,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:37:47,591 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:37:47,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:37:47,592 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:37:47,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:37:47,592 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:37:47,593 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:37:47,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:37:47,593 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:37:47,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:37:47,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:37:47,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:37:47,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:37:47,594 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:37:47,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:37:47,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:37:47,595 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-vcloud-master/worker/run_dir_c2283dcb-2cc5-496d-838e-f179dcf89c4e/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c2283dcb-2cc5-496d-838e-f179dcf89c4e/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d74df1b7449c0e223ad61b2c5cd0b2b79a63ca78 [2020-11-28 04:37:47,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:37:47,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:37:47,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:37:47,891 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:37:47,894 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:37:47,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c2283dcb-2cc5-496d-838e-f179dcf89c4e/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound2.c [2020-11-28 04:37:47,985 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c2283dcb-2cc5-496d-838e-f179dcf89c4e/bin/ukojak/data/6a4f9ae2f/972fffc62f2f4048b8b49f770d4cfde3/FLAG87aff23ad [2020-11-28 04:37:48,422 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:37:48,422 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c2283dcb-2cc5-496d-838e-f179dcf89c4e/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound2.c [2020-11-28 04:37:48,437 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c2283dcb-2cc5-496d-838e-f179dcf89c4e/bin/ukojak/data/6a4f9ae2f/972fffc62f2f4048b8b49f770d4cfde3/FLAG87aff23ad [2020-11-28 04:37:48,800 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c2283dcb-2cc5-496d-838e-f179dcf89c4e/bin/ukojak/data/6a4f9ae2f/972fffc62f2f4048b8b49f770d4cfde3 [2020-11-28 04:37:48,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:37:48,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:37:48,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:37:48,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:37:48,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:37:48,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:48" (1/1) ... [2020-11-28 04:37:48,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40169494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:48, skipping insertion in model container [2020-11-28 04:37:48,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:48" (1/1) ... [2020-11-28 04:37:48,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:37:48,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:37:49,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:37:49,049 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:37:49,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:37:49,085 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:37:49,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49 WrapperNode [2020-11-28 04:37:49,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:37:49,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:37:49,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:37:49,088 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:37:49,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:37:49,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:37:49,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:37:49,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:37:49,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:37:49,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:37:49,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:37:49,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:37:49,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2283dcb-2cc5-496d-838e-f179dcf89c4e/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:37:49,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:37:49,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:37:49,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:37:49,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:37:49,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-28 04:37:49,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-28 04:37:49,678 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:37:49,678 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 04:37:49,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:49 BoogieIcfgContainer [2020-11-28 04:37:49,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:37:49,681 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:37:49,681 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:37:49,690 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:37:49,691 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:49" (1/1) ... [2020-11-28 04:37:49,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:37:49,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:49,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2020-11-28 04:37:49,740 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2020-11-28 04:37:49,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:37:49,742 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:49,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 04:37:49,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:37:49,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:50,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:50,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2020-11-28 04:37:50,151 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2020-11-28 04:37:50,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:37:50,155 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:50,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-28 04:37:50,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:37:50,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:50,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:50,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 22 states and 35 transitions. [2020-11-28 04:37:50,754 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 35 transitions. [2020-11-28 04:37:50,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:37:50,755 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:50,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:37:50,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:37:50,875 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:51,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:51,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 25 states and 41 transitions. [2020-11-28 04:37:51,179 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 41 transitions. [2020-11-28 04:37:51,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 04:37:51,181 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:51,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:37:51,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:37:51,604 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 04:37:51,693 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:37:52,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:52,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 29 states and 51 transitions. [2020-11-28 04:37:52,645 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 51 transitions. [2020-11-28 04:37:52,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:37:52,646 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:52,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-28 04:37:52,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:37:53,074 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 04:37:53,084 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:37:54,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:54,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 36 states and 68 transitions. [2020-11-28 04:37:54,063 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 68 transitions. [2020-11-28 04:37:54,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 04:37:54,065 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:54,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-28 04:37:54,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:37:54,265 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:37:54,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:54,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 39 states and 74 transitions. [2020-11-28 04:37:54,825 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 74 transitions. [2020-11-28 04:37:54,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 04:37:54,826 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:54,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:37:54,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:37:54,901 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 04:37:54,925 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-28 04:37:55,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:55,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 40 states and 76 transitions. [2020-11-28 04:37:55,178 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 76 transitions. [2020-11-28 04:37:55,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 04:37:55,180 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:55,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:55,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-28 04:37:55,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:37:55,549 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 04:37:55,574 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-28 04:37:56,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:56,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 47 states and 92 transitions. [2020-11-28 04:37:56,797 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 92 transitions. [2020-11-28 04:37:56,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 04:37:56,798 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:56,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-28 04:37:56,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:37:57,139 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-28 04:37:58,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:58,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 27 states and 36 transitions. [2020-11-28 04:37:58,398 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-11-28 04:37:58,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 04:37:58,400 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:58,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:37:58,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:37:58,495 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 04:37:58,514 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-11-28 04:37:59,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:59,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 20 states and 27 transitions. [2020-11-28 04:37:59,615 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2020-11-28 04:37:59,616 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:37:59,616 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2020-11-28 04:37:59,634 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:37:59,812 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:37:59,815 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:37:59,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:37:59 ImpRootNode [2020-11-28 04:37:59,815 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:37:59,816 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:37:59,816 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:37:59,817 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:37:59,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:49" (3/4) ... [2020-11-28 04:37:59,821 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:37:59,827 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-11-28 04:37:59,831 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-28 04:37:59,832 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 04:37:59,832 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:37:59,832 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:37:59,887 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c2283dcb-2cc5-496d-838e-f179dcf89c4e/bin/ukojak/witness.graphml [2020-11-28 04:37:59,891 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:37:59,893 INFO L168 Benchmark]: Toolchain (without parser) took 11087.88 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 71.6 MB in the beginning and 80.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:59,893 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 107.0 MB. Free memory was 77.7 MB in the beginning and 77.7 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:37:59,894 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.73 ms. Allocated memory is still 107.0 MB. Free memory was 71.6 MB in the beginning and 82.6 MB in the end (delta: -11.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:59,894 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.96 ms. Allocated memory is still 107.0 MB. Free memory was 82.6 MB in the beginning and 81.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:59,895 INFO L168 Benchmark]: Boogie Preprocessor took 21.55 ms. Allocated memory is still 107.0 MB. Free memory was 81.1 MB in the beginning and 80.6 MB in the end (delta: 550.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:37:59,895 INFO L168 Benchmark]: RCFGBuilder took 533.93 ms. Allocated memory is still 107.0 MB. Free memory was 80.1 MB in the beginning and 64.3 MB in the end (delta: 15.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:59,896 INFO L168 Benchmark]: CodeCheck took 10134.01 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 64.3 MB in the beginning and 83.8 MB in the end (delta: -19.5 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:59,896 INFO L168 Benchmark]: Witness Printer took 75.58 ms. Allocated memory is still 157.3 MB. Free memory was 83.8 MB in the beginning and 81.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:59,900 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, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.9s, OverallIterations: 11, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7424 SDtfs, 3768 SDslu, 5088 SDs, 0 SdLazy, 32784 SolverSat, 10924 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1854 GetRequests, 1709 SyntacticMatches, 33 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4841 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 185 ConstructedInterpolants, 0 QuantifiedInterpolants, 16535 SizeOfPredicates, 31 NumberOfNonLiveVariables, 831 ConjunctsInSsa, 122 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 128/162 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 107.0 MB. Free memory was 77.7 MB in the beginning and 77.7 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 280.73 ms. Allocated memory is still 107.0 MB. Free memory was 71.6 MB in the beginning and 82.6 MB in the end (delta: -11.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.96 ms. Allocated memory is still 107.0 MB. Free memory was 82.6 MB in the beginning and 81.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.55 ms. Allocated memory is still 107.0 MB. Free memory was 81.1 MB in the beginning and 80.6 MB in the end (delta: 550.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 533.93 ms. Allocated memory is still 107.0 MB. Free memory was 80.1 MB in the beginning and 64.3 MB in the end (delta: 15.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 10134.01 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 64.3 MB in the beginning and 83.8 MB in the end (delta: -19.5 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. * Witness Printer took 75.58 ms. Allocated memory is still 157.3 MB. Free memory was 83.8 MB in the beginning and 81.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...