./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-005.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_36df619d-8b7a-4345-b633-04ced885ed75/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_36df619d-8b7a-4345-b633-04ced885ed75/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_36df619d-8b7a-4345-b633-04ced885ed75/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_36df619d-8b7a-4345-b633-04ced885ed75/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-005.c -s /tmp/vcloud-vcloud-master/worker/run_dir_36df619d-8b7a-4345-b633-04ced885ed75/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_36df619d-8b7a-4345-b633-04ced885ed75/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb28031a68e9901575d70de4181d02d22e8fd5c4 .............................................................................................................................................................................................................................................................................................................................................. 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 [2020-11-29 19:39:43,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:39:43,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:39:43,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:39:43,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:39:43,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:39:43,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:39:43,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:39:43,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:39:43,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:39:43,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:39:43,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:39:43,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:39:43,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:39:43,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:39:43,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:39:43,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:39:43,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:39:43,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:39:43,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:39:43,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:39:43,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:39:43,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:39:43,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:39:43,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:39:43,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:39:43,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:39:43,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:39:43,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:39:43,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:39:43,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:39:43,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:39:43,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:39:43,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:39:43,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:39:43,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:39:43,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:39:43,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:39:43,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:39:43,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:39:43,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:39:43,358 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_36df619d-8b7a-4345-b633-04ced885ed75/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:39:43,401 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:39:43,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:39:43,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:39:43,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:39:43,403 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:39:43,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:39:43,404 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:39:43,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:39:43,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:39:43,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:39:43,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:39:43,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:39:43,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:39:43,405 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:39:43,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:39:43,406 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:39:43,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:39:43,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:39:43,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:39:43,407 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:39:43,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:39:43,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:39:43,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:39:43,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:39:43,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:39:43,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:39:43,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:39:43,409 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:39:43,409 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:39:43,409 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_36df619d-8b7a-4345-b633-04ced885ed75/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_36df619d-8b7a-4345-b633-04ced885ed75/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb28031a68e9901575d70de4181d02d22e8fd5c4 [2020-11-29 19:39:43,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:39:43,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:39:43,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:39:43,772 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:39:43,776 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:39:43,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_36df619d-8b7a-4345-b633-04ced885ed75/bin/uautomizer/../../sv-benchmarks/c/xcsp/AllInterval-005.c [2020-11-29 19:39:43,862 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_36df619d-8b7a-4345-b633-04ced885ed75/bin/uautomizer/data/bb57ed505/78a71cc3925348e397d4a14610fe255b/FLAG34286afd4 [2020-11-29 19:39:44,529 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:39:44,530 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_36df619d-8b7a-4345-b633-04ced885ed75/sv-benchmarks/c/xcsp/AllInterval-005.c [2020-11-29 19:39:44,547 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_36df619d-8b7a-4345-b633-04ced885ed75/bin/uautomizer/data/bb57ed505/78a71cc3925348e397d4a14610fe255b/FLAG34286afd4 [2020-11-29 19:39:44,851 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_36df619d-8b7a-4345-b633-04ced885ed75/bin/uautomizer/data/bb57ed505/78a71cc3925348e397d4a14610fe255b [2020-11-29 19:39:44,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:39:44,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:39:44,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:39:44,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:39:44,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:39:44,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:39:44" (1/1) ... [2020-11-29 19:39:44,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70f0ebd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:44, skipping insertion in model container [2020-11-29 19:39:44,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:39:44" (1/1) ... [2020-11-29 19:39:44,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:39:44,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:39:45,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:39:45,170 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:39:45,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:39:45,250 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:39:45,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:45 WrapperNode [2020-11-29 19:39:45,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:39:45,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:39:45,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:39:45,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:39:45,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:45" (1/1) ... [2020-11-29 19:39:45,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:45" (1/1) ... [2020-11-29 19:39:45,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:39:45,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:39:45,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:39:45,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:39:45,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:45" (1/1) ... [2020-11-29 19:39:45,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:45" (1/1) ... [2020-11-29 19:39:45,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:45" (1/1) ... [2020-11-29 19:39:45,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:45" (1/1) ... [2020-11-29 19:39:45,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:45" (1/1) ... [2020-11-29 19:39:45,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:45" (1/1) ... [2020-11-29 19:39:45,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:45" (1/1) ... [2020-11-29 19:39:45,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:39:45,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:39:45,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:39:45,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:39:45,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36df619d-8b7a-4345-b633-04ced885ed75/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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:2000 [2020-11-29 19:39:45,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:39:45,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:39:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:39:45,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:39:46,280 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:39:46,281 INFO L298 CfgBuilder]: Removed 82 assume(true) statements. [2020-11-29 19:39:46,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:39:46 BoogieIcfgContainer [2020-11-29 19:39:46,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:39:46,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:39:46,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:39:46,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:39:46,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:39:44" (1/3) ... [2020-11-29 19:39:46,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7893a5e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:39:46, skipping insertion in model container [2020-11-29 19:39:46,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:45" (2/3) ... [2020-11-29 19:39:46,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7893a5e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:39:46, skipping insertion in model container [2020-11-29 19:39:46,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:39:46" (3/3) ... [2020-11-29 19:39:46,301 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-005.c [2020-11-29 19:39:46,315 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:39:46,320 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:39:46,331 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:39:46,356 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:39:46,357 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:39:46,357 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:39:46,357 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:39:46,357 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:39:46,357 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:39:46,357 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:39:46,358 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:39:46,376 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states. [2020-11-29 19:39:46,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-11-29 19:39:46,387 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:39:46,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:39:46,388 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:39:46,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:39:46,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1499740993, now seen corresponding path program 1 times [2020-11-29 19:39:46,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:39:46,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388956943] [2020-11-29 19:39:46,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:39:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:39:46,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:39:46,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388956943] [2020-11-29 19:39:46,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:39:46,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:39:46,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506267926] [2020-11-29 19:39:46,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:39:46,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:39:46,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:39:46,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:39:46,645 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 2 states. [2020-11-29 19:39:46,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:39:46,672 INFO L93 Difference]: Finished difference Result 175 states and 257 transitions. [2020-11-29 19:39:46,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:39:46,674 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 86 [2020-11-29 19:39:46,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:39:46,684 INFO L225 Difference]: With dead ends: 175 [2020-11-29 19:39:46,685 INFO L226 Difference]: Without dead ends: 87 [2020-11-29 19:39:46,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:39:46,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-11-29 19:39:46,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-11-29 19:39:46,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-29 19:39:46,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2020-11-29 19:39:46,732 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 86 [2020-11-29 19:39:46,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:39:46,733 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2020-11-29 19:39:46,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:39:46,733 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2020-11-29 19:39:46,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-11-29 19:39:46,737 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:39:46,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:39:46,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:39:46,738 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:39:46,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:39:46,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1861667587, now seen corresponding path program 1 times [2020-11-29 19:39:46,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:39:46,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856312575] [2020-11-29 19:39:46,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:39:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:39:47,069 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:39:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:39:47,260 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:39:47,320 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:39:47,321 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 19:39:47,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:39:47,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:39:47 BoogieIcfgContainer [2020-11-29 19:39:47,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:39:47,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:39:47,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:39:47,439 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:39:47,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:39:46" (3/4) ... [2020-11-29 19:39:47,443 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 19:39:47,533 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_36df619d-8b7a-4345-b633-04ced885ed75/bin/uautomizer/witness.graphml [2020-11-29 19:39:47,533 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:39:47,535 INFO L168 Benchmark]: Toolchain (without parser) took 2671.89 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 66.4 MB in the beginning and 58.5 MB in the end (delta: 7.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:47,536 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory was 52.1 MB in the beginning and 52.1 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:39:47,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.14 ms. Allocated memory is still 94.4 MB. Free memory was 66.1 MB in the beginning and 70.5 MB in the end (delta: -4.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:47,537 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.49 ms. Allocated memory is still 94.4 MB. Free memory was 70.5 MB in the beginning and 67.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:47,537 INFO L168 Benchmark]: Boogie Preprocessor took 34.42 ms. Allocated memory is still 94.4 MB. Free memory was 67.9 MB in the beginning and 66.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:39:47,538 INFO L168 Benchmark]: RCFGBuilder took 934.63 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 66.5 MB in the beginning and 88.0 MB in the end (delta: -21.6 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:47,539 INFO L168 Benchmark]: TraceAbstraction took 1152.15 ms. Allocated memory is still 113.2 MB. Free memory was 87.5 MB in the beginning and 64.1 MB in the end (delta: 23.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:47,539 INFO L168 Benchmark]: Witness Printer took 94.08 ms. Allocated memory is still 113.2 MB. Free memory was 64.1 MB in the beginning and 58.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:47,542 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory was 52.1 MB in the beginning and 52.1 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 387.14 ms. Allocated memory is still 94.4 MB. Free memory was 66.1 MB in the beginning and 70.5 MB in the end (delta: -4.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.49 ms. Allocated memory is still 94.4 MB. Free memory was 70.5 MB in the beginning and 67.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.42 ms. Allocated memory is still 94.4 MB. Free memory was 67.9 MB in the beginning and 66.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 934.63 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 66.5 MB in the beginning and 88.0 MB in the end (delta: -21.6 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1152.15 ms. Allocated memory is still 113.2 MB. Free memory was 87.5 MB in the beginning and 64.1 MB in the end (delta: 23.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 94.08 ms. Allocated memory is still 113.2 MB. Free memory was 64.1 MB in the beginning and 58.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 17]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L24] int cond0; [L25] int dummy = 0; [L26] int N; [L27] int var0; [L28] var0 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L31] int var1; [L32] var1 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L35] int var2; [L36] var2 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L39] int var3; [L40] var3 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L43] int var4; [L44] var4 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L47] int var5; [L48] var5 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L51] int var6; [L52] var6 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L55] int var7; [L56] var7 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L59] int var8; [L60] var8 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L63] int myvar0 = 1; [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L80] int var_for_abs; [L81] var_for_abs = var0 - var1 [L82] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L82] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L84] var_for_abs = var1 - var2 [L85] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L85] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L87] var_for_abs = var2 - var3 [L88] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L88] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L90] var_for_abs = var3 - var4 [L91] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L91] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L17] __assert_fail("0", "AllInterval-005.c", 5, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 7225 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...