./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s2liff.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_5cb829ab-b9b5-4118-90a4-eb0c93ce86ba/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5cb829ab-b9b5-4118-90a4-eb0c93ce86ba/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5cb829ab-b9b5-4118-90a4-eb0c93ce86ba/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5cb829ab-b9b5-4118-90a4-eb0c93ce86ba/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/s2liff.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5cb829ab-b9b5-4118-90a4-eb0c93ce86ba/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5cb829ab-b9b5-4118-90a4-eb0c93ce86ba/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 4027bb0cfa9b444de3c49eeb4f57bbd5ece3ac53 .................................................................................................................................................................................................................................................................................................................................................................................. 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 04:34:35,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:34:35,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:34:35,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:34:35,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:34:35,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:34:35,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:34:35,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:34:35,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:34:35,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:34:35,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:34:35,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:34:35,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:34:35,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:34:35,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:34:35,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:34:35,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:34:35,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:34:35,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:34:35,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:34:35,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:34:35,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:34:35,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:34:35,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:34:35,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:34:35,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:34:35,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:34:35,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:34:35,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:34:35,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:34:35,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:34:35,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:34:35,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:34:35,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:34:35,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:34:35,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:34:35,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:34:35,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:34:35,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:34:35,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:34:35,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:34:35,283 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5cb829ab-b9b5-4118-90a4-eb0c93ce86ba/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 04:34:35,315 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:34:35,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:34:35,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:34:35,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:34:35,317 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:34:35,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:34:35,317 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:34:35,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:34:35,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:34:35,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:34:35,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 04:34:35,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:34:35,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 04:34:35,319 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:34:35,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:34:35,320 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:34:35,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 04:34:35,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:34:35,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:34:35,321 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:34:35,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:34:35,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:34:35,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:34:35,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:34:35,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 04:34:35,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 04:34:35,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 04:34:35,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 04:34:35,323 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_5cb829ab-b9b5-4118-90a4-eb0c93ce86ba/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 -> 4027bb0cfa9b444de3c49eeb4f57bbd5ece3ac53 [2019-11-20 04:34:35,491 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:34:35,504 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:34:35,507 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:34:35,508 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:34:35,509 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:34:35,510 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5cb829ab-b9b5-4118-90a4-eb0c93ce86ba/bin/uautomizer/../../sv-benchmarks/c/array-fpi/s2liff.c [2019-11-20 04:34:35,567 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5cb829ab-b9b5-4118-90a4-eb0c93ce86ba/bin/uautomizer/data/8a59f95ea/b284bab7535d4ade8cb42c1206810c1e/FLAG4db45a549 [2019-11-20 04:34:35,964 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:34:35,964 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5cb829ab-b9b5-4118-90a4-eb0c93ce86ba/sv-benchmarks/c/array-fpi/s2liff.c [2019-11-20 04:34:35,970 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5cb829ab-b9b5-4118-90a4-eb0c93ce86ba/bin/uautomizer/data/8a59f95ea/b284bab7535d4ade8cb42c1206810c1e/FLAG4db45a549 [2019-11-20 04:34:36,365 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5cb829ab-b9b5-4118-90a4-eb0c93ce86ba/bin/uautomizer/data/8a59f95ea/b284bab7535d4ade8cb42c1206810c1e [2019-11-20 04:34:36,367 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:34:36,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:34:36,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:34:36,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:34:36,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:34:36,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:34:36" (1/1) ... [2019-11-20 04:34:36,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe72269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:34:36, skipping insertion in model container [2019-11-20 04:34:36,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:34:36" (1/1) ... [2019-11-20 04:34:36,389 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:34:36,407 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:34:36,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:34:36,683 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:34:36,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:34:36,728 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:34:36,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:34:36 WrapperNode [2019-11-20 04:34:36,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:34:36,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:34:36,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:34:36,730 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:34:36,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:34:36" (1/1) ... [2019-11-20 04:34:36,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:34:36" (1/1) ... [2019-11-20 04:34:36,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:34:36,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:34:36,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:34:36,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:34:36,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:34:36" (1/1) ... [2019-11-20 04:34:36,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:34:36" (1/1) ... [2019-11-20 04:34:36,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:34:36" (1/1) ... [2019-11-20 04:34:36,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:34:36" (1/1) ... [2019-11-20 04:34:36,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:34:36" (1/1) ... [2019-11-20 04:34:36,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:34:36" (1/1) ... [2019-11-20 04:34:36,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:34:36" (1/1) ... [2019-11-20 04:34:36,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:34:36,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:34:36,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:34:36,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:34:36,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:34:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5cb829ab-b9b5-4118-90a4-eb0c93ce86ba/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 04:34:36,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:34:36,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 04:34:36,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 04:34:36,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:34:36,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:34:36,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 04:34:36,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 04:34:37,154 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:34:37,154 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-20 04:34:37,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:34:37 BoogieIcfgContainer [2019-11-20 04:34:37,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:34:37,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:34:37,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:34:37,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:34:37,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:34:36" (1/3) ... [2019-11-20 04:34:37,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ef2036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:34:37, skipping insertion in model container [2019-11-20 04:34:37,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:34:36" (2/3) ... [2019-11-20 04:34:37,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ef2036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:34:37, skipping insertion in model container [2019-11-20 04:34:37,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:34:37" (3/3) ... [2019-11-20 04:34:37,163 INFO L109 eAbstractionObserver]: Analyzing ICFG s2liff.c [2019-11-20 04:34:37,172 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:34:37,186 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 04:34:37,199 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 04:34:37,219 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:34:37,219 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 04:34:37,219 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:34:37,219 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:34:37,219 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:34:37,219 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:34:37,219 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:34:37,220 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:34:37,232 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-20 04:34:37,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 04:34:37,238 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:34:37,238 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:34:37,239 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:34:37,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:34:37,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1306593900, now seen corresponding path program 1 times [2019-11-20 04:34:37,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:34:37,250 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827155521] [2019-11-20 04:34:37,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:34:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:34:37,369 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 04:34:37,369 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827155521] [2019-11-20 04:34:37,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:34:37,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 04:34:37,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543538681] [2019-11-20 04:34:37,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 04:34:37,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:34:37,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 04:34:37,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 04:34:37,388 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-11-20 04:34:37,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:34:37,403 INFO L93 Difference]: Finished difference Result 35 states and 48 transitions. [2019-11-20 04:34:37,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 04:34:37,404 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-20 04:34:37,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:34:37,412 INFO L225 Difference]: With dead ends: 35 [2019-11-20 04:34:37,413 INFO L226 Difference]: Without dead ends: 16 [2019-11-20 04:34:37,415 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 04:34:37,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-20 04:34:37,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-20 04:34:37,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 04:34:37,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-11-20 04:34:37,441 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2019-11-20 04:34:37,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:34:37,442 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-11-20 04:34:37,442 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 04:34:37,442 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-11-20 04:34:37,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 04:34:37,442 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:34:37,443 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:34:37,443 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:34:37,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:34:37,443 INFO L82 PathProgramCache]: Analyzing trace with hash -875432925, now seen corresponding path program 1 times [2019-11-20 04:34:37,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:34:37,444 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691297312] [2019-11-20 04:34:37,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:34:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:34:37,509 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 04:34:37,510 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691297312] [2019-11-20 04:34:37,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:34:37,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 04:34:37,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419207772] [2019-11-20 04:34:37,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:34:37,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:34:37,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:34:37,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:34:37,512 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 3 states. [2019-11-20 04:34:37,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:34:37,588 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2019-11-20 04:34:37,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:34:37,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-11-20 04:34:37,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:34:37,589 INFO L225 Difference]: With dead ends: 29 [2019-11-20 04:34:37,589 INFO L226 Difference]: Without dead ends: 18 [2019-11-20 04:34:37,590 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 04:34:37,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-20 04:34:37,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-11-20 04:34:37,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 04:34:37,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2019-11-20 04:34:37,595 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 11 [2019-11-20 04:34:37,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:34:37,595 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-11-20 04:34:37,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:34:37,595 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2019-11-20 04:34:37,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 04:34:37,596 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:34:37,596 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:34:37,597 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:34:37,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:34:37,597 INFO L82 PathProgramCache]: Analyzing trace with hash -100050171, now seen corresponding path program 1 times [2019-11-20 04:34:37,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:34:37,598 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892894036] [2019-11-20 04:34:37,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:34:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:34:37,671 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 04:34:37,672 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892894036] [2019-11-20 04:34:37,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:34:37,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 04:34:37,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567891581] [2019-11-20 04:34:37,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 04:34:37,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:34:37,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 04:34:37,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 04:34:37,674 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 4 states. [2019-11-20 04:34:37,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:34:37,734 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2019-11-20 04:34:37,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 04:34:37,735 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-20 04:34:37,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:34:37,735 INFO L225 Difference]: With dead ends: 30 [2019-11-20 04:34:37,736 INFO L226 Difference]: Without dead ends: 23 [2019-11-20 04:34:37,736 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 04:34:37,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-20 04:34:37,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2019-11-20 04:34:37,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-20 04:34:37,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2019-11-20 04:34:37,741 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 13 [2019-11-20 04:34:37,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:34:37,741 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-11-20 04:34:37,742 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 04:34:37,742 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-11-20 04:34:37,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 04:34:37,742 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:34:37,743 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:34:37,743 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:34:37,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:34:37,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1777901324, now seen corresponding path program 1 times [2019-11-20 04:34:37,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:34:37,744 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624054922] [2019-11-20 04:34:37,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:34:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:34:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:34:37,865 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:34:37,866 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 04:34:37,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 04:34:37 BoogieIcfgContainer [2019-11-20 04:34:37,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 04:34:37,897 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:34:37,898 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:34:37,898 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:34:37,898 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:34:37" (3/4) ... [2019-11-20 04:34:37,900 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 04:34:37,949 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5cb829ab-b9b5-4118-90a4-eb0c93ce86ba/bin/uautomizer/witness.graphml [2019-11-20 04:34:37,949 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:34:37,951 INFO L168 Benchmark]: Toolchain (without parser) took 1582.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -82.5 MB). Peak memory consumption was 35.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:34:37,952 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:34:37,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -157.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-20 04:34:37,959 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.51 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 04:34:37,959 INFO L168 Benchmark]: Boogie Preprocessor took 54.25 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 04:34:37,960 INFO L168 Benchmark]: RCFGBuilder took 310.43 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: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:34:37,960 INFO L168 Benchmark]: TraceAbstraction took 740.91 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: 50.1 MB). Peak memory consumption was 50.1 MB. Max. memory is 11.5 GB. [2019-11-20 04:34:37,960 INFO L168 Benchmark]: Witness Printer took 52.21 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:34:37,963 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 360.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -157.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.51 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 54.25 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 310.43 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: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 740.91 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: 50.1 MB). Peak memory consumption was 50.1 MB. Max. memory is 11.5 GB. * Witness Printer took 52.21 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. 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] = N [L27] i=0 VAL [N=1] [L27] COND TRUE i