./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/indp4f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bf34f360-32b2-457e-8463-f21066622f3a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_bf34f360-32b2-457e-8463-f21066622f3a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bf34f360-32b2-457e-8463-f21066622f3a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bf34f360-32b2-457e-8463-f21066622f3a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/indp4f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bf34f360-32b2-457e-8463-f21066622f3a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bf34f360-32b2-457e-8463-f21066622f3a/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa7a6c534add2031cc7a2cd1c6ce2a09a390c50f .................................................................................................................................................................................................................................................................................................................................................................................................................. 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-cad4683 [2019-11-15 20:16:56,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:16:56,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:16:56,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:16:56,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:16:56,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:16:56,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:16:56,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:16:56,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:16:56,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:16:56,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:16:56,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:16:56,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:16:56,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:16:56,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:16:56,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:16:56,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:16:56,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:16:56,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:16:56,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:16:56,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:16:56,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:16:56,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:16:56,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:16:56,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:16:56,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:16:56,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:16:56,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:16:56,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:16:56,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:16:56,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:16:56,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:16:56,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:16:56,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:16:56,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:16:56,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:16:56,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:16:56,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:16:56,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:16:56,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:16:56,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:16:56,325 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bf34f360-32b2-457e-8463-f21066622f3a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:16:56,349 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:16:56,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:16:56,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:16:56,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:16:56,352 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:16:56,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:16:56,353 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:16:56,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:16:56,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:16:56,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:16:56,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:16:56,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:16:56,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:16:56,356 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:16:56,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:16:56,357 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:16:56,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:16:56,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:16:56,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:16:56,358 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:16:56,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:16:56,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:16:56,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:16:56,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:16:56,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:16:56,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:16:56,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:16:56,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:16:56,362 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_bf34f360-32b2-457e-8463-f21066622f3a/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(__VERIFIER_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 -> fa7a6c534add2031cc7a2cd1c6ce2a09a390c50f [2019-11-15 20:16:56,412 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:16:56,424 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:16:56,428 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:16:56,430 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:16:56,430 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:16:56,431 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bf34f360-32b2-457e-8463-f21066622f3a/bin/uautomizer/../../sv-benchmarks/c/array-fpi/indp4f.c [2019-11-15 20:16:56,492 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf34f360-32b2-457e-8463-f21066622f3a/bin/uautomizer/data/73893f852/e10b0e5c954041beba162d67830622d7/FLAG23fad50e9 [2019-11-15 20:16:56,946 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:16:56,947 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bf34f360-32b2-457e-8463-f21066622f3a/sv-benchmarks/c/array-fpi/indp4f.c [2019-11-15 20:16:56,954 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf34f360-32b2-457e-8463-f21066622f3a/bin/uautomizer/data/73893f852/e10b0e5c954041beba162d67830622d7/FLAG23fad50e9 [2019-11-15 20:16:57,269 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bf34f360-32b2-457e-8463-f21066622f3a/bin/uautomizer/data/73893f852/e10b0e5c954041beba162d67830622d7 [2019-11-15 20:16:57,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:16:57,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:16:57,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:16:57,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:16:57,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:16:57,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:16:57" (1/1) ... [2019-11-15 20:16:57,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e7bb7f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:57, skipping insertion in model container [2019-11-15 20:16:57,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:16:57" (1/1) ... [2019-11-15 20:16:57,294 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:16:57,314 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:16:57,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:16:57,681 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:16:57,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:16:57,741 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:16:57,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:57 WrapperNode [2019-11-15 20:16:57,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:16:57,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:16:57,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:16:57,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:16:57,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:57" (1/1) ... [2019-11-15 20:16:57,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:57" (1/1) ... [2019-11-15 20:16:57,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:16:57,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:16:57,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:16:57,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:16:57,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:57" (1/1) ... [2019-11-15 20:16:57,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:57" (1/1) ... [2019-11-15 20:16:57,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:57" (1/1) ... [2019-11-15 20:16:57,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:57" (1/1) ... [2019-11-15 20:16:57,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:57" (1/1) ... [2019-11-15 20:16:57,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:57" (1/1) ... [2019-11-15 20:16:57,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:57" (1/1) ... [2019-11-15 20:16:57,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:16:57,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:16:57,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:16:57,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:16:57,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf34f360-32b2-457e-8463-f21066622f3a/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 [2019-11-15 20:16:57,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 20:16:57,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-15 20:16:57,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:16:57,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:16:57,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 20:16:58,147 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:16:58,147 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-15 20:16:58,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:16:58 BoogieIcfgContainer [2019-11-15 20:16:58,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:16:58,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:16:58,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:16:58,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:16:58,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:16:57" (1/3) ... [2019-11-15 20:16:58,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c7a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:16:58, skipping insertion in model container [2019-11-15 20:16:58,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:57" (2/3) ... [2019-11-15 20:16:58,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c7a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:16:58, skipping insertion in model container [2019-11-15 20:16:58,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:16:58" (3/3) ... [2019-11-15 20:16:58,156 INFO L109 eAbstractionObserver]: Analyzing ICFG indp4f.c [2019-11-15 20:16:58,166 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:16:58,174 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:16:58,185 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:16:58,211 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:16:58,212 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:16:58,212 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:16:58,212 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:16:58,212 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:16:58,213 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:16:58,213 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:16:58,213 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:16:58,230 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-11-15 20:16:58,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 20:16:58,251 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:16:58,254 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:16:58,256 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:16:58,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:16:58,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1553700779, now seen corresponding path program 1 times [2019-11-15 20:16:58,286 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:16:58,287 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209561370] [2019-11-15 20:16:58,287 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:16:58,287 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:16:58,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:16:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:16:58,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:16:58,413 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209561370] [2019-11-15 20:16:58,414 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:16:58,414 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 20:16:58,414 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452459835] [2019-11-15 20:16:58,418 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:16:58,418 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:16:58,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:16:58,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:16:58,432 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2019-11-15 20:16:58,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:16:58,448 INFO L93 Difference]: Finished difference Result 39 states and 54 transitions. [2019-11-15 20:16:58,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:16:58,450 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-15 20:16:58,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:16:58,458 INFO L225 Difference]: With dead ends: 39 [2019-11-15 20:16:58,458 INFO L226 Difference]: Without dead ends: 18 [2019-11-15 20:16:58,461 INFO L600 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 [2019-11-15 20:16:58,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-15 20:16:58,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-15 20:16:58,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-15 20:16:58,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-11-15 20:16:58,493 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 12 [2019-11-15 20:16:58,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:16:58,494 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-15 20:16:58,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:16:58,494 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-11-15 20:16:58,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 20:16:58,495 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:16:58,495 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:16:58,495 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:16:58,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:16:58,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1516529121, now seen corresponding path program 1 times [2019-11-15 20:16:58,496 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:16:58,496 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884428291] [2019-11-15 20:16:58,496 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:16:58,497 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:16:58,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:16:58,514 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-15 20:16:58,515 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1799474074] [2019-11-15 20:16:58,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf34f360-32b2-457e-8463-f21066622f3a/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:16:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:16:58,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 20:16:58,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:16:58,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:16:58,646 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884428291] [2019-11-15 20:16:58,646 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-15 20:16:58,646 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799474074] [2019-11-15 20:16:58,646 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:16:58,647 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 20:16:58,647 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526417400] [2019-11-15 20:16:58,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 20:16:58,649 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:16:58,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 20:16:58,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:16:58,649 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 3 states. [2019-11-15 20:16:58,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:16:58,708 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-11-15 20:16:58,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 20:16:58,709 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-15 20:16:58,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:16:58,710 INFO L225 Difference]: With dead ends: 33 [2019-11-15 20:16:58,710 INFO L226 Difference]: Without dead ends: 20 [2019-11-15 20:16:58,711 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:16:58,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-15 20:16:58,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-11-15 20:16:58,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-15 20:16:58,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2019-11-15 20:16:58,716 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 12 [2019-11-15 20:16:58,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:16:58,717 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-11-15 20:16:58,717 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 20:16:58,717 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-11-15 20:16:58,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 20:16:58,718 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:16:58,718 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:16:58,929 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:16:58,930 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:16:58,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:16:58,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1045499773, now seen corresponding path program 1 times [2019-11-15 20:16:58,931 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:16:58,931 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474074533] [2019-11-15 20:16:58,931 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:16:58,931 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:16:58,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:16:58,943 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-15 20:16:58,943 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1815684058] [2019-11-15 20:16:58,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf34f360-32b2-457e-8463-f21066622f3a/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:16:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:16:59,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 20:16:59,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:16:59,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 20:16:59,045 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474074533] [2019-11-15 20:16:59,045 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-15 20:16:59,045 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815684058] [2019-11-15 20:16:59,045 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:16:59,045 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 20:16:59,046 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328490652] [2019-11-15 20:16:59,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 20:16:59,046 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:16:59,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 20:16:59,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:16:59,047 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 4 states. [2019-11-15 20:16:59,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:16:59,133 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2019-11-15 20:16:59,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 20:16:59,134 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-15 20:16:59,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:16:59,135 INFO L225 Difference]: With dead ends: 40 [2019-11-15 20:16:59,135 INFO L226 Difference]: Without dead ends: 30 [2019-11-15 20:16:59,136 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:16:59,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-15 20:16:59,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 21. [2019-11-15 20:16:59,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-15 20:16:59,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-11-15 20:16:59,141 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 14 [2019-11-15 20:16:59,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:16:59,142 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-11-15 20:16:59,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 20:16:59,142 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-11-15 20:16:59,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-15 20:16:59,143 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:16:59,143 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:16:59,344 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:16:59,344 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:16:59,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:16:59,345 INFO L82 PathProgramCache]: Analyzing trace with hash 392653561, now seen corresponding path program 1 times [2019-11-15 20:16:59,345 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:16:59,345 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990668762] [2019-11-15 20:16:59,345 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:16:59,346 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:16:59,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:16:59,356 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-15 20:16:59,357 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [658935003] [2019-11-15 20:16:59,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf34f360-32b2-457e-8463-f21066622f3a/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:16:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:16:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:16:59,453 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:16:59,453 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 20:16:59,659 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:16:59,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:16:59 BoogieIcfgContainer [2019-11-15 20:16:59,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:16:59,698 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:16:59,699 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:16:59,699 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:16:59,700 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:16:58" (3/4) ... [2019-11-15 20:16:59,702 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-15 20:16:59,760 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bf34f360-32b2-457e-8463-f21066622f3a/bin/uautomizer/witness.graphml [2019-11-15 20:16:59,760 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:16:59,762 INFO L168 Benchmark]: Toolchain (without parser) took 2486.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 944.8 MB in the beginning and 1.0 GB in the end (delta: -76.0 MB). Peak memory consumption was 57.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:16:59,763 INFO L168 Benchmark]: CDTParser took 0.28 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. [2019-11-15 20:16:59,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 466.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -179.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:16:59,764 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.71 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. [2019-11-15 20:16:59,764 INFO L168 Benchmark]: Boogie Preprocessor took 26.36 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. [2019-11-15 20:16:59,765 INFO L168 Benchmark]: RCFGBuilder took 333.63 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: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:16:59,766 INFO L168 Benchmark]: TraceAbstraction took 1548.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:16:59,766 INFO L168 Benchmark]: Witness Printer took 61.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:16:59,770 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 466.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -179.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.71 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 26.36 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 333.63 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: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1548.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 11.5 GB. * Witness Printer took 61.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int N; VAL [N=0] [L18] N = __VERIFIER_nondet_int() [L19] COND FALSE !(N <= 0) [L22] int i; [L23] long long *a = malloc(sizeof(long long)*N); [L25] i=0 VAL [N=1] [L25] COND TRUE i