./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.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_4fd40c4f-9ffc-4d9b-ac97-d2f7a9ce4f32/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4fd40c4f-9ffc-4d9b-ac97-d2f7a9ce4f32/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4fd40c4f-9ffc-4d9b-ac97-d2f7a9ce4f32/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4fd40c4f-9ffc-4d9b-ac97-d2f7a9ce4f32/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4fd40c4f-9ffc-4d9b-ac97-d2f7a9ce4f32/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4fd40c4f-9ffc-4d9b-ac97-d2f7a9ce4f32/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 0f1ad3cc0bcd12cb7a0202fe36e84d61809d1d7f ................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:33:18,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:33:18,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:33:18,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:33:18,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:33:18,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:33:18,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:33:18,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:33:18,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:33:18,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:33:18,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:33:18,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:33:18,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:33:18,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:33:18,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:33:18,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:33:18,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:33:18,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:33:18,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:33:18,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:33:18,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:33:18,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:33:18,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:33:18,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:33:18,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:33:18,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:33:18,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:33:18,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:33:18,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:33:18,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:33:18,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:33:18,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:33:18,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:33:18,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:33:18,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:33:18,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:33:18,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:33:18,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:33:18,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:33:18,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:33:18,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:33:18,538 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4fd40c4f-9ffc-4d9b-ac97-d2f7a9ce4f32/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:33:18,585 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:33:18,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:33:18,586 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:33:18,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:33:18,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:33:18,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:33:18,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:33:18,588 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:33:18,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:33:18,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:33:18,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:33:18,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:33:18,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:33:18,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:33:18,590 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:33:18,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:33:18,591 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:33:18,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:33:18,591 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:33:18,591 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:33:18,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:33:18,592 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:33:18,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:33:18,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:33:18,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:33:18,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:33:18,605 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:33:18,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:33:18,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:33:18,606 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_4fd40c4f-9ffc-4d9b-ac97-d2f7a9ce4f32/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4fd40c4f-9ffc-4d9b-ac97-d2f7a9ce4f32/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f1ad3cc0bcd12cb7a0202fe36e84d61809d1d7f [2020-11-28 04:33:18,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:33:18,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:33:18,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:33:18,972 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:33:18,974 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:33:18,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4fd40c4f-9ffc-4d9b-ac97-d2f7a9ce4f32/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c [2020-11-28 04:33:19,053 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4fd40c4f-9ffc-4d9b-ac97-d2f7a9ce4f32/bin/ukojak/data/a227ff322/312d093529d44787b52e6a1896d8aa67/FLAGba5783dfe [2020-11-28 04:33:19,607 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:33:19,609 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4fd40c4f-9ffc-4d9b-ac97-d2f7a9ce4f32/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c [2020-11-28 04:33:19,621 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4fd40c4f-9ffc-4d9b-ac97-d2f7a9ce4f32/bin/ukojak/data/a227ff322/312d093529d44787b52e6a1896d8aa67/FLAGba5783dfe [2020-11-28 04:33:19,974 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4fd40c4f-9ffc-4d9b-ac97-d2f7a9ce4f32/bin/ukojak/data/a227ff322/312d093529d44787b52e6a1896d8aa67 [2020-11-28 04:33:19,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:33:19,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:33:19,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:33:19,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:33:19,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:33:20,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:19" (1/1) ... [2020-11-28 04:33:20,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dbebe5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:20, skipping insertion in model container [2020-11-28 04:33:20,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:19" (1/1) ... [2020-11-28 04:33:20,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:33:20,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:33:20,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:33:20,192 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:33:20,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:33:20,226 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:33:20,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:20 WrapperNode [2020-11-28 04:33:20,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:33:20,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:33:20,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:33:20,229 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:33:20,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:20" (1/1) ... [2020-11-28 04:33:20,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:20" (1/1) ... [2020-11-28 04:33:20,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:33:20,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:33:20,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:33:20,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:33:20,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:20" (1/1) ... [2020-11-28 04:33:20,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:20" (1/1) ... [2020-11-28 04:33:20,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:20" (1/1) ... [2020-11-28 04:33:20,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:20" (1/1) ... [2020-11-28 04:33:20,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:20" (1/1) ... [2020-11-28 04:33:20,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:20" (1/1) ... [2020-11-28 04:33:20,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:20" (1/1) ... [2020-11-28 04:33:20,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:33:20,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:33:20,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:33:20,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:33:20,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4fd40c4f-9ffc-4d9b-ac97-d2f7a9ce4f32/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 04:33:20,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:33:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:33:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:33:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:33:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-28 04:33:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-28 04:33:20,860 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:33:20,860 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 04:33:20,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:20 BoogieIcfgContainer [2020-11-28 04:33:20,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:33:20,864 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:33:20,864 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:33:20,875 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:33:20,875 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:20" (1/1) ... [2020-11-28 04:33:20,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:33:20,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:20,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2020-11-28 04:33:20,923 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2020-11-28 04:33:20,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:33:20,928 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:21,036 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 04:33:21,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:21,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2020-11-28 04:33:21,046 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2020-11-28 04:33:21,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:33:21,047 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:21,184 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 04:33:21,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:21,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 43 transitions. [2020-11-28 04:33:21,326 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2020-11-28 04:33:21,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:33:21,327 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:21,420 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 04:33:21,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:21,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 46 transitions. [2020-11-28 04:33:21,847 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2020-11-28 04:33:21,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:33:21,848 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:21,956 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 04:33:22,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:22,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 52 transitions. [2020-11-28 04:33:22,478 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2020-11-28 04:33:22,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 04:33:22,478 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:22,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-28 04:33:22,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:33:22,900 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:33:23,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:23,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 38 states and 61 transitions. [2020-11-28 04:33:23,969 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-11-28 04:33:23,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 04:33:23,971 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:24,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 04:33:24,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:33:24,249 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-28 04:33:25,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:25,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 48 states and 94 transitions. [2020-11-28 04:33:25,732 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 94 transitions. [2020-11-28 04:33:25,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 04:33:25,733 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:25,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 04:33:25,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:33:25,816 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-28 04:33:26,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:26,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 52 states and 106 transitions. [2020-11-28 04:33:26,466 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 106 transitions. [2020-11-28 04:33:26,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 04:33:26,468 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:26,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 04:33:26,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:33:26,744 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-11-28 04:33:27,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:27,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 52 states and 105 transitions. [2020-11-28 04:33:27,139 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 105 transitions. [2020-11-28 04:33:27,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 04:33:27,141 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:27,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 04:33:27,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:33:27,215 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-11-28 04:33:27,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:27,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 54 states and 107 transitions. [2020-11-28 04:33:27,715 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 107 transitions. [2020-11-28 04:33:27,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 04:33:27,716 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:27,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 04:33:27,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:33:27,860 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-11-28 04:33:28,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:28,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 59 states and 121 transitions. [2020-11-28 04:33:28,848 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 121 transitions. [2020-11-28 04:33:28,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 04:33:28,850 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:33:28,907 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:33:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:33:28,927 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:33:28,987 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2020-11-28 04:33:29,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:33:29 ImpRootNode [2020-11-28 04:33:29,064 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:33:29,065 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:33:29,065 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:33:29,065 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:33:29,065 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:20" (3/4) ... [2020-11-28 04:33:29,068 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:33:29,232 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4fd40c4f-9ffc-4d9b-ac97-d2f7a9ce4f32/bin/ukojak/witness.graphml [2020-11-28 04:33:29,233 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:33:29,235 INFO L168 Benchmark]: Toolchain (without parser) took 9240.91 ms. Allocated memory was 111.1 MB in the beginning and 161.5 MB in the end (delta: 50.3 MB). Free memory was 91.2 MB in the beginning and 117.4 MB in the end (delta: -26.2 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:29,236 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory was 61.6 MB in the beginning and 61.5 MB in the end (delta: 56.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:29,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.61 ms. Allocated memory is still 111.1 MB. Free memory was 91.0 MB in the beginning and 81.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:29,238 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.56 ms. Allocated memory is still 111.1 MB. Free memory was 81.0 MB in the beginning and 79.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:29,239 INFO L168 Benchmark]: Boogie Preprocessor took 24.33 ms. Allocated memory is still 111.1 MB. Free memory was 79.5 MB in the beginning and 78.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:29,240 INFO L168 Benchmark]: RCFGBuilder took 573.20 ms. Allocated memory is still 111.1 MB. Free memory was 78.3 MB in the beginning and 61.5 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:29,241 INFO L168 Benchmark]: CodeCheck took 8200.16 ms. Allocated memory was 111.1 MB in the beginning and 161.5 MB in the end (delta: 50.3 MB). Free memory was 61.5 MB in the beginning and 120.6 MB in the end (delta: -59.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:29,242 INFO L168 Benchmark]: Witness Printer took 168.27 ms. Allocated memory is still 161.5 MB. Free memory was 120.6 MB in the beginning and 117.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:29,247 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, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.0s, OverallIterations: 11, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18384 SDtfs, 2572 SDslu, 4860 SDs, 0 SdLazy, 20308 SolverSat, 7600 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1843 GetRequests, 1692 SyntacticMatches, 23 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6635 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 9976 SizeOfPredicates, 9 NumberOfNonLiveVariables, 564 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 118/118 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L22] int counter = 0; [L24] int A, B; [L25] int r, d, p, q; [L26] A = __VERIFIER_nondet_int() [L27] B = 1 [L29] r = A [L30] d = B [L31] p = 1 [L32] q = 0 VAL [counter=0] [L34] EXPR counter++ VAL [counter=1] [L34] COND TRUE counter++<1 [L35] CALL __VERIFIER_assert(q == 0) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L35] RET __VERIFIER_assert(q == 0) VAL [counter=1] [L36] CALL __VERIFIER_assert(r == A) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L36] RET __VERIFIER_assert(r == A) VAL [counter=1] [L37] CALL __VERIFIER_assert(d == B * p) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L37] RET __VERIFIER_assert(d == B * p) VAL [counter=1] [L38] COND FALSE !(!(r >= d)) [L40] d = 2 * d [L41] p = 2 * p VAL [counter=1] [L34] EXPR counter++ VAL [counter=2] [L34] COND FALSE !(counter++<1) [L44] EXPR counter++ VAL [counter=3] [L44] COND FALSE !(counter++<1) [L58] CALL __VERIFIER_assert(A == d*q + r) VAL [counter=3] [L15] COND FALSE !(!(cond)) VAL [counter=3] [L58] RET __VERIFIER_assert(A == d*q + r) VAL [counter=3] [L59] CALL __VERIFIER_assert(B == d) VAL [counter=3] [L15] COND TRUE !(cond) VAL [counter=3] [L8] __assert_fail("0", "hard2.c", 8, "reach_error") VAL [counter=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory was 61.6 MB in the beginning and 61.5 MB in the end (delta: 56.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 233.61 ms. Allocated memory is still 111.1 MB. Free memory was 91.0 MB in the beginning and 81.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.56 ms. Allocated memory is still 111.1 MB. Free memory was 81.0 MB in the beginning and 79.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.33 ms. Allocated memory is still 111.1 MB. Free memory was 79.5 MB in the beginning and 78.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 573.20 ms. Allocated memory is still 111.1 MB. Free memory was 78.3 MB in the beginning and 61.5 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 8200.16 ms. Allocated memory was 111.1 MB in the beginning and 161.5 MB in the end (delta: 50.3 MB). Free memory was 61.5 MB in the beginning and 120.6 MB in the end (delta: -59.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 168.27 ms. Allocated memory is still 161.5 MB. Free memory was 120.6 MB in the beginning and 117.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...