./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1401dcc1-b8ff-4901-bdf0-eab550c17d9d/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1401dcc1-b8ff-4901-bdf0-eab550c17d9d/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1401dcc1-b8ff-4901-bdf0-eab550c17d9d/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1401dcc1-b8ff-4901-bdf0-eab550c17d9d/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1401dcc1-b8ff-4901-bdf0-eab550c17d9d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1401dcc1-b8ff-4901-bdf0-eab550c17d9d/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ccae6f392e1d87c0b193f39dee91a5c51306cb93 ........................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-19 22:26:39,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:26:39,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:26:39,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:26:39,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:26:39,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:26:39,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:26:39,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:26:39,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:26:39,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:26:39,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:26:39,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:26:39,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:26:39,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:26:39,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:26:39,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:26:39,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:26:39,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:26:39,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:26:39,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:26:39,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:26:39,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:26:39,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:26:39,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:26:39,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:26:39,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:26:39,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:26:39,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:26:39,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:26:39,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:26:39,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:26:39,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:26:39,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:26:39,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:26:39,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:26:39,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:26:39,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:26:39,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:26:39,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:26:39,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:26:39,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:26:39,291 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1401dcc1-b8ff-4901-bdf0-eab550c17d9d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-19 22:26:39,310 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:26:39,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:26:39,312 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-19 22:26:39,312 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-19 22:26:39,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:26:39,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:26:39,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:26:39,314 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:26:39,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:26:39,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:26:39,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:26:39,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:26:39,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:26:39,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:26:39,317 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:26:39,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:26:39,317 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:26:39,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:26:39,318 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-19 22:26:39,318 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-19 22:26:39,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:26:39,318 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:26:39,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-19 22:26:39,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:26:39,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:26:39,320 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:26:39,320 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-19 22:26:39,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 22:26:39,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:26:39,320 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_1401dcc1-b8ff-4901-bdf0-eab550c17d9d/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(__VERIFIER_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 -> ccae6f392e1d87c0b193f39dee91a5c51306cb93 [2019-11-19 22:26:39,516 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:26:39,526 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:26:39,530 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:26:39,532 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:26:39,532 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:26:39,533 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1401dcc1-b8ff-4901-bdf0-eab550c17d9d/bin/ukojak/../../sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c [2019-11-19 22:26:39,600 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1401dcc1-b8ff-4901-bdf0-eab550c17d9d/bin/ukojak/data/081d1a066/fecc5cc3530d4793aea4e48b782af8a9/FLAGbde3e8e21 [2019-11-19 22:26:39,988 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:26:39,989 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1401dcc1-b8ff-4901-bdf0-eab550c17d9d/sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c [2019-11-19 22:26:39,994 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1401dcc1-b8ff-4901-bdf0-eab550c17d9d/bin/ukojak/data/081d1a066/fecc5cc3530d4793aea4e48b782af8a9/FLAGbde3e8e21 [2019-11-19 22:26:40,366 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1401dcc1-b8ff-4901-bdf0-eab550c17d9d/bin/ukojak/data/081d1a066/fecc5cc3530d4793aea4e48b782af8a9 [2019-11-19 22:26:40,369 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:26:40,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:26:40,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:26:40,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:26:40,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:26:40,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:26:40" (1/1) ... [2019-11-19 22:26:40,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46659513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:40, skipping insertion in model container [2019-11-19 22:26:40,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:26:40" (1/1) ... [2019-11-19 22:26:40,386 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:26:40,408 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:26:40,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:26:40,626 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:26:40,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:26:40,728 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:26:40,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:40 WrapperNode [2019-11-19 22:26:40,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:26:40,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:26:40,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:26:40,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:26:40,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:40" (1/1) ... [2019-11-19 22:26:40,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:40" (1/1) ... [2019-11-19 22:26:40,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:26:40,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:26:40,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:26:40,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:26:40,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:40" (1/1) ... [2019-11-19 22:26:40,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:40" (1/1) ... [2019-11-19 22:26:40,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:40" (1/1) ... [2019-11-19 22:26:40,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:40" (1/1) ... [2019-11-19 22:26:40,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:40" (1/1) ... [2019-11-19 22:26:40,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:40" (1/1) ... [2019-11-19 22:26:40,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:40" (1/1) ... [2019-11-19 22:26:40,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:26:40,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:26:40,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:26:40,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:26:40,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:26:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1401dcc1-b8ff-4901-bdf0-eab550c17d9d/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 [2019-11-19 22:26:40,848 INFO L130 BoogieDeclarations]: Found specification of procedure A [2019-11-19 22:26:40,848 INFO L138 BoogieDeclarations]: Found implementation of procedure A [2019-11-19 22:26:40,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:26:40,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:26:41,020 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:26:41,020 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-19 22:26:41,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:26:41 BoogieIcfgContainer [2019-11-19 22:26:41,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:26:41,022 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-19 22:26:41,022 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-19 22:26:41,033 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-19 22:26:41,033 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:26:41" (1/1) ... [2019-11-19 22:26:41,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:26:41,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 22:26:41,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2019-11-19 22:26:41,111 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-11-19 22:26:41,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-19 22:26:41,117 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 22:26:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:26:41,478 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-19 22:26:41,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-19 22:26:41,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2019-11-19 22:26:41,700 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-11-19 22:26:41,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-19 22:26:41,702 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-19 22:26:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:26:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:26:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:26:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:26:41,854 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2019-11-19 22:26:41,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 10:26:41 ImpRootNode [2019-11-19 22:26:41,901 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-19 22:26:41,901 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:26:41,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:26:41,902 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:26:41,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:26:41" (3/4) ... [2019-11-19 22:26:41,904 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 22:26:41,957 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1401dcc1-b8ff-4901-bdf0-eab550c17d9d/bin/ukojak/witness.graphml [2019-11-19 22:26:41,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:26:41,959 INFO L168 Benchmark]: Toolchain (without parser) took 1588.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -108.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:26:41,960 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:26:41,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:26:41,961 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:26:41,961 INFO L168 Benchmark]: Boogie Preprocessor took 16.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:26:41,962 INFO L168 Benchmark]: RCFGBuilder took 241.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:26:41,962 INFO L168 Benchmark]: CodeCheck took 879.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:26:41,963 INFO L168 Benchmark]: Witness Printer took 55.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:26:41,965 INFO L335 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, 16 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 6 SDslu, 8 SDs, 0 SdLazy, 21 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 980 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 1/4 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: 31]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int g; [L26] int g = __VERIFIER_nondet_int(); [L27] int h = !g; VAL [g=0] [L28] CALL A(g,h) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=0, g=0] [L17] COND TRUE \read(a1) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=0, a1=-1, a2=0, g=0] [L18] CALL A(a2,a1) VAL [\old(a1)=0, \old(a2)=-1, \old(g)=0, g=0] [L17] COND FALSE !(\read(a1)) [L20] g = a2 VAL [\old(a1)=0, \old(a2)=-1, \old(g)=0, a1=0, a2=-1, g=-1] [L18] RET A(a2,a1) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=0, A(a2,a1)=0, a1=-1, a2=0, g=-1] [L28] RET A(g,h) VAL [g=-1] [L29] CALL A(g,h) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=-1, g=-1] [L17] COND TRUE \read(a1) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=-1, a1=-1, a2=0, g=-1] [L18] CALL A(a2,a1) VAL [\old(a1)=0, \old(a2)=-1, \old(g)=-1, g=-1] [L17] COND FALSE !(\read(a1)) [L20] g = a2 VAL [\old(a1)=0, \old(a2)=-1, \old(g)=-1, a1=0, a2=-1, g=-1] [L18] RET A(a2,a1) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=-1, A(a2,a1)=0, a1=-1, a2=0, g=-1] [L29] RET A(g,h) VAL [g=-1] [L30] COND TRUE \read(g) VAL [g=-1] [L31] __VERIFIER_error() VAL [g=-1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 359.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 241.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * CodeCheck took 879.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Witness Printer took 55.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...