./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/condgf.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_5d288120-f321-40aa-ad19-f270c1db3d82/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5d288120-f321-40aa-ad19-f270c1db3d82/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5d288120-f321-40aa-ad19-f270c1db3d82/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5d288120-f321-40aa-ad19-f270c1db3d82/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/condgf.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5d288120-f321-40aa-ad19-f270c1db3d82/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5d288120-f321-40aa-ad19-f270c1db3d82/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 6d41f74949d7e15e9e2b5b7d1dc87eb4599a99e6 ..................................................................................................................................................................................................................................................................................................................................................................................... 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 [2019-11-20 00:08:53,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:08:53,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:08:53,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:08:53,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:08:53,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:08:53,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:08:53,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:08:53,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:08:53,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:08:53,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:08:53,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:08:53,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:08:53,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:08:53,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:08:53,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:08:53,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:08:53,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:08:53,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:08:53,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:08:53,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:08:53,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:08:53,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:08:53,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:08:53,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:08:53,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:08:53,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:08:53,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:08:53,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:08:53,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:08:53,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:08:53,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:08:53,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:08:53,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:08:53,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:08:53,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:08:53,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:08:53,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:08:53,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:08:53,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:08:53,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:08:53,360 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5d288120-f321-40aa-ad19-f270c1db3d82/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 00:08:53,380 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:08:53,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:08:53,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:08:53,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:08:53,385 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:08:53,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:08:53,386 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 00:08:53,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:08:53,387 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 00:08:53,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:08:53,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 00:08:53,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:08:53,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 00:08:53,389 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 00:08:53,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:08:53,390 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:08:53,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 00:08:53,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:08:53,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:08:53,391 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:08:53,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 00:08:53,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:08:53,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:08:53,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:08:53,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 00:08:53,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 00:08:53,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 00:08:53,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 00:08:53,395 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_5d288120-f321-40aa-ad19-f270c1db3d82/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 -> 6d41f74949d7e15e9e2b5b7d1dc87eb4599a99e6 [2019-11-20 00:08:53,560 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:08:53,573 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:08:53,576 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:08:53,578 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:08:53,579 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:08:53,579 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5d288120-f321-40aa-ad19-f270c1db3d82/bin/uautomizer/../../sv-benchmarks/c/array-fpi/condgf.c [2019-11-20 00:08:53,641 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d288120-f321-40aa-ad19-f270c1db3d82/bin/uautomizer/data/ae788b078/18d8dc1596f24f6ab8e79e0fba0a8094/FLAG6cc035f52 [2019-11-20 00:08:54,128 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:08:54,128 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5d288120-f321-40aa-ad19-f270c1db3d82/sv-benchmarks/c/array-fpi/condgf.c [2019-11-20 00:08:54,134 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d288120-f321-40aa-ad19-f270c1db3d82/bin/uautomizer/data/ae788b078/18d8dc1596f24f6ab8e79e0fba0a8094/FLAG6cc035f52 [2019-11-20 00:08:54,519 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5d288120-f321-40aa-ad19-f270c1db3d82/bin/uautomizer/data/ae788b078/18d8dc1596f24f6ab8e79e0fba0a8094 [2019-11-20 00:08:54,521 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:08:54,523 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:08:54,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:08:54,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:08:54,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:08:54,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:08:54" (1/1) ... [2019-11-20 00:08:54,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f556bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:54, skipping insertion in model container [2019-11-20 00:08:54,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:08:54" (1/1) ... [2019-11-20 00:08:54,541 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:08:54,560 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:08:54,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:08:54,900 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:08:54,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:08:54,948 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:08:54,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:54 WrapperNode [2019-11-20 00:08:54,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:08:54,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:08:54,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:08:54,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:08:54,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:54" (1/1) ... [2019-11-20 00:08:54,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:54" (1/1) ... [2019-11-20 00:08:54,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:08:54,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:08:54,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:08:54,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:08:55,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:54" (1/1) ... [2019-11-20 00:08:55,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:54" (1/1) ... [2019-11-20 00:08:55,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:54" (1/1) ... [2019-11-20 00:08:55,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:54" (1/1) ... [2019-11-20 00:08:55,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:54" (1/1) ... [2019-11-20 00:08:55,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:54" (1/1) ... [2019-11-20 00:08:55,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:54" (1/1) ... [2019-11-20 00:08:55,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:08:55,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:08:55,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:08:55,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:08:55,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d288120-f321-40aa-ad19-f270c1db3d82/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 [2019-11-20 00:08:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 00:08:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 00:08:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 00:08:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:08:55,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:08:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 00:08:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 00:08:55,395 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:08:55,395 INFO L285 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-20 00:08:55,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:08:55 BoogieIcfgContainer [2019-11-20 00:08:55,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:08:55,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 00:08:55,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 00:08:55,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 00:08:55,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:08:54" (1/3) ... [2019-11-20 00:08:55,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@989291d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:08:55, skipping insertion in model container [2019-11-20 00:08:55,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:54" (2/3) ... [2019-11-20 00:08:55,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@989291d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:08:55, skipping insertion in model container [2019-11-20 00:08:55,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:08:55" (3/3) ... [2019-11-20 00:08:55,405 INFO L109 eAbstractionObserver]: Analyzing ICFG condgf.c [2019-11-20 00:08:55,417 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 00:08:55,424 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 00:08:55,436 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 00:08:55,474 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 00:08:55,480 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 00:08:55,481 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 00:08:55,481 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:08:55,481 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:08:55,481 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 00:08:55,481 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:08:55,482 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 00:08:55,498 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-20 00:08:55,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 00:08:55,506 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:08:55,507 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:08:55,508 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:08:55,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:08:55,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1564013430, now seen corresponding path program 1 times [2019-11-20 00:08:55,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:08:55,530 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375208201] [2019-11-20 00:08:55,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:08:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:08:55,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:08:55,678 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375208201] [2019-11-20 00:08:55,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:08:55,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 00:08:55,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711137690] [2019-11-20 00:08:55,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 00:08:55,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:08:55,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 00:08:55,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 00:08:55,705 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2019-11-20 00:08:55,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:08:55,726 INFO L93 Difference]: Finished difference Result 41 states and 58 transitions. [2019-11-20 00:08:55,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 00:08:55,732 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-20 00:08:55,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:08:55,744 INFO L225 Difference]: With dead ends: 41 [2019-11-20 00:08:55,744 INFO L226 Difference]: Without dead ends: 19 [2019-11-20 00:08:55,747 INFO L630 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 [2019-11-20 00:08:55,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-20 00:08:55,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-20 00:08:55,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-20 00:08:55,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2019-11-20 00:08:55,788 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2019-11-20 00:08:55,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:08:55,790 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2019-11-20 00:08:55,790 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 00:08:55,791 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2019-11-20 00:08:55,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 00:08:55,791 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:08:55,792 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:08:55,792 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:08:55,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:08:55,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1516375201, now seen corresponding path program 1 times [2019-11-20 00:08:55,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:08:55,794 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506110395] [2019-11-20 00:08:55,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:08:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:08:55,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:08:55,901 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506110395] [2019-11-20 00:08:55,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:08:55,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 00:08:55,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823307391] [2019-11-20 00:08:55,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 00:08:55,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:08:55,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 00:08:55,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 00:08:55,905 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand 3 states. [2019-11-20 00:08:55,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:08:55,973 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2019-11-20 00:08:55,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 00:08:55,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-20 00:08:55,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:08:55,975 INFO L225 Difference]: With dead ends: 35 [2019-11-20 00:08:55,975 INFO L226 Difference]: Without dead ends: 21 [2019-11-20 00:08:55,977 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 00:08:55,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-20 00:08:55,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2019-11-20 00:08:55,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-20 00:08:55,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2019-11-20 00:08:55,983 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 12 [2019-11-20 00:08:55,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:08:55,984 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2019-11-20 00:08:55,984 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 00:08:55,984 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2019-11-20 00:08:55,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 00:08:55,985 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:08:55,985 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:08:55,986 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:08:55,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:08:55,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1045653693, now seen corresponding path program 1 times [2019-11-20 00:08:55,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:08:55,987 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964629768] [2019-11-20 00:08:55,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:08:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:08:56,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 00:08:56,091 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964629768] [2019-11-20 00:08:56,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:08:56,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 00:08:56,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872439215] [2019-11-20 00:08:56,092 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 00:08:56,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:08:56,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 00:08:56,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 00:08:56,093 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand 4 states. [2019-11-20 00:08:56,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:08:56,176 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2019-11-20 00:08:56,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 00:08:56,177 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-20 00:08:56,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:08:56,178 INFO L225 Difference]: With dead ends: 43 [2019-11-20 00:08:56,178 INFO L226 Difference]: Without dead ends: 32 [2019-11-20 00:08:56,179 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 00:08:56,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-20 00:08:56,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 22. [2019-11-20 00:08:56,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-20 00:08:56,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2019-11-20 00:08:56,185 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 14 [2019-11-20 00:08:56,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:08:56,186 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-11-20 00:08:56,186 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 00:08:56,186 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-11-20 00:08:56,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 00:08:56,187 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:08:56,187 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:08:56,187 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:08:56,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:08:56,188 INFO L82 PathProgramCache]: Analyzing trace with hash -2094910850, now seen corresponding path program 1 times [2019-11-20 00:08:56,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:08:56,188 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788965] [2019-11-20 00:08:56,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:08:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:08:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:08:56,350 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:08:56,351 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 00:08:56,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:08:56 BoogieIcfgContainer [2019-11-20 00:08:56,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 00:08:56,407 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:08:56,407 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:08:56,407 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:08:56,408 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:08:55" (3/4) ... [2019-11-20 00:08:56,410 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 00:08:56,465 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5d288120-f321-40aa-ad19-f270c1db3d82/bin/uautomizer/witness.graphml [2019-11-20 00:08:56,466 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:08:56,468 INFO L168 Benchmark]: Toolchain (without parser) took 1944.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 951.5 MB in the beginning and 1.0 GB in the end (delta: -64.7 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. [2019-11-20 00:08:56,469 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. [2019-11-20 00:08:56,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 426.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -145.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-20 00:08:56,470 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.58 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:08:56,470 INFO L168 Benchmark]: Boogie Preprocessor took 29.67 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:08:56,471 INFO L168 Benchmark]: RCFGBuilder took 373.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-11-20 00:08:56,472 INFO L168 Benchmark]: TraceAbstraction took 1008.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 11.5 GB. [2019-11-20 00:08:56,472 INFO L168 Benchmark]: Witness Printer took 59.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-20 00:08:56,475 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 426.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -145.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.58 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.67 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 373.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1008.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 11.5 GB. * Witness Printer took 59.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 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 sum[1]; [L24] int *a = malloc(sizeof(int)*N); [L26] sum[0] = 0 [L27] i=0 VAL [N=1] [L27] COND TRUE i