./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s32iff.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_12ba261b-0056-45e6-9e8d-534c670484e3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_12ba261b-0056-45e6-9e8d-534c670484e3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_12ba261b-0056-45e6-9e8d-534c670484e3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_12ba261b-0056-45e6-9e8d-534c670484e3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/s32iff.c -s /tmp/vcloud-vcloud-master/worker/run_dir_12ba261b-0056-45e6-9e8d-534c670484e3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_12ba261b-0056-45e6-9e8d-534c670484e3/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 0ba44c6ca17231ecfd94126411c3d1f5cb1fbe71 ............................................................................................................................................................................................................................................................................................................................................................................................. 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 22:43:29,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:43:29,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:43:29,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:43:29,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:43:29,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:43:29,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:43:29,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:43:29,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:43:29,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:43:29,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:43:29,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:43:29,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:43:29,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:43:29,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:43:29,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:43:29,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:43:29,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:43:29,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:43:29,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:43:29,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:43:29,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:43:29,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:43:29,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:43:29,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:43:29,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:43:29,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:43:29,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:43:29,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:43:29,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:43:29,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:43:29,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:43:29,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:43:29,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:43:29,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:43:29,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:43:29,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:43:29,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:43:29,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:43:29,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:43:29,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:43:29,643 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_12ba261b-0056-45e6-9e8d-534c670484e3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:43:29,655 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:43:29,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:43:29,656 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:43:29,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:43:29,657 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:43:29,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:43:29,657 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:43:29,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:43:29,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:43:29,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:43:29,658 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:43:29,658 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:43:29,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:43:29,658 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:43:29,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:43:29,659 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:43:29,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:43:29,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:43:29,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:43:29,660 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:43:29,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:43:29,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:43:29,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:43:29,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:43:29,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:43:29,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:43:29,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:43:29,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:43:29,662 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_12ba261b-0056-45e6-9e8d-534c670484e3/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 -> 0ba44c6ca17231ecfd94126411c3d1f5cb1fbe71 [2019-11-15 22:43:29,687 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:43:29,697 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:43:29,700 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:43:29,701 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:43:29,701 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:43:29,702 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_12ba261b-0056-45e6-9e8d-534c670484e3/bin/uautomizer/../../sv-benchmarks/c/array-fpi/s32iff.c [2019-11-15 22:43:29,760 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_12ba261b-0056-45e6-9e8d-534c670484e3/bin/uautomizer/data/2b2965f52/89be642e528540d495fa8f6454523d42/FLAGde044172f [2019-11-15 22:43:30,086 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:43:30,087 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_12ba261b-0056-45e6-9e8d-534c670484e3/sv-benchmarks/c/array-fpi/s32iff.c [2019-11-15 22:43:30,091 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_12ba261b-0056-45e6-9e8d-534c670484e3/bin/uautomizer/data/2b2965f52/89be642e528540d495fa8f6454523d42/FLAGde044172f [2019-11-15 22:43:30,472 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_12ba261b-0056-45e6-9e8d-534c670484e3/bin/uautomizer/data/2b2965f52/89be642e528540d495fa8f6454523d42 [2019-11-15 22:43:30,474 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:43:30,475 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:43:30,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:43:30,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:43:30,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:43:30,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:43:30" (1/1) ... [2019-11-15 22:43:30,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@189d02d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:30, skipping insertion in model container [2019-11-15 22:43:30,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:43:30" (1/1) ... [2019-11-15 22:43:30,489 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:43:30,507 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:43:30,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:43:30,773 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:43:30,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:43:30,826 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:43:30,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:30 WrapperNode [2019-11-15 22:43:30,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:43:30,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:43:30,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:43:30,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:43:30,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:30" (1/1) ... [2019-11-15 22:43:30,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:30" (1/1) ... [2019-11-15 22:43:30,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:43:30,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:43:30,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:43:30,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:43:30,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:30" (1/1) ... [2019-11-15 22:43:30,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:30" (1/1) ... [2019-11-15 22:43:30,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:30" (1/1) ... [2019-11-15 22:43:30,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:30" (1/1) ... [2019-11-15 22:43:30,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:30" (1/1) ... [2019-11-15 22:43:30,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:30" (1/1) ... [2019-11-15 22:43:30,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:30" (1/1) ... [2019-11-15 22:43:30,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:43:30,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:43:30,930 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:43:30,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:43:30,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12ba261b-0056-45e6-9e8d-534c670484e3/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 22:43:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:43:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:43:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-15 22:43:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:43:31,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:43:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 22:43:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:43:31,248 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:43:31,249 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-15 22:43:31,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:43:31 BoogieIcfgContainer [2019-11-15 22:43:31,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:43:31,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:43:31,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:43:31,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:43:31,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:43:30" (1/3) ... [2019-11-15 22:43:31,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58435e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:43:31, skipping insertion in model container [2019-11-15 22:43:31,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:30" (2/3) ... [2019-11-15 22:43:31,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58435e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:43:31, skipping insertion in model container [2019-11-15 22:43:31,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:43:31" (3/3) ... [2019-11-15 22:43:31,257 INFO L109 eAbstractionObserver]: Analyzing ICFG s32iff.c [2019-11-15 22:43:31,266 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:43:31,271 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:43:31,280 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:43:31,300 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:43:31,300 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:43:31,301 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:43:31,301 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:43:31,301 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:43:31,301 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:43:31,301 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:43:31,301 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:43:31,314 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-11-15 22:43:31,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 22:43:31,335 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:43:31,336 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:43:31,337 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:43:31,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:43:31,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1306747820, now seen corresponding path program 1 times [2019-11-15 22:43:31,350 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:43:31,350 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861439382] [2019-11-15 22:43:31,351 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:43:31,351 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:43:31,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:43:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:43:31,473 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 22:43:31,473 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861439382] [2019-11-15 22:43:31,474 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:43:31,474 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 22:43:31,474 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526033214] [2019-11-15 22:43:31,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:43:31,478 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:43:31,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:43:31,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:43:31,488 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-11-15 22:43:31,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:43:31,502 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions. [2019-11-15 22:43:31,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:43:31,503 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-15 22:43:31,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:43:31,510 INFO L225 Difference]: With dead ends: 37 [2019-11-15 22:43:31,510 INFO L226 Difference]: Without dead ends: 17 [2019-11-15 22:43:31,512 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 22:43:31,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-15 22:43:31,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-15 22:43:31,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-15 22:43:31,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-11-15 22:43:31,537 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-11-15 22:43:31,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:43:31,538 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-11-15 22:43:31,538 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:43:31,538 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-11-15 22:43:31,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 22:43:31,539 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:43:31,539 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:43:31,539 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:43:31,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:43:31,540 INFO L82 PathProgramCache]: Analyzing trace with hash -875427960, now seen corresponding path program 1 times [2019-11-15 22:43:31,540 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:43:31,540 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475742428] [2019-11-15 22:43:31,540 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:43:31,540 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:43:31,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:43:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:43:31,628 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 22:43:31,628 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475742428] [2019-11-15 22:43:31,628 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:43:31,628 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 22:43:31,629 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502653212] [2019-11-15 22:43:31,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 22:43:31,630 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:43:31,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:43:31,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:43:31,631 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 3 states. [2019-11-15 22:43:31,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:43:31,714 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2019-11-15 22:43:31,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:43:31,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-11-15 22:43:31,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:43:31,715 INFO L225 Difference]: With dead ends: 31 [2019-11-15 22:43:31,715 INFO L226 Difference]: Without dead ends: 19 [2019-11-15 22:43:31,716 INFO L600 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 [2019-11-15 22:43:31,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-15 22:43:31,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-11-15 22:43:31,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-15 22:43:31,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2019-11-15 22:43:31,720 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 11 [2019-11-15 22:43:31,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:43:31,720 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2019-11-15 22:43:31,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 22:43:31,721 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-11-15 22:43:31,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-15 22:43:31,721 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:43:31,721 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:43:31,722 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:43:31,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:43:31,722 INFO L82 PathProgramCache]: Analyzing trace with hash -100045206, now seen corresponding path program 1 times [2019-11-15 22:43:31,722 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:43:31,722 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223952390] [2019-11-15 22:43:31,722 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:43:31,723 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:43:31,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:43:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:43:31,783 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 22:43:31,783 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223952390] [2019-11-15 22:43:31,783 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:43:31,784 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 22:43:31,784 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500803112] [2019-11-15 22:43:31,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 22:43:31,784 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:43:31,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:43:31,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:43:31,785 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 4 states. [2019-11-15 22:43:31,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:43:31,852 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2019-11-15 22:43:31,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 22:43:31,852 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-15 22:43:31,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:43:31,853 INFO L225 Difference]: With dead ends: 33 [2019-11-15 22:43:31,853 INFO L226 Difference]: Without dead ends: 25 [2019-11-15 22:43:31,854 INFO L600 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 [2019-11-15 22:43:31,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-15 22:43:31,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2019-11-15 22:43:31,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-15 22:43:31,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2019-11-15 22:43:31,858 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 13 [2019-11-15 22:43:31,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:43:31,858 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2019-11-15 22:43:31,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 22:43:31,859 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2019-11-15 22:43:31,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-15 22:43:31,859 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:43:31,860 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:43:31,860 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:43:31,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:43:31,860 INFO L82 PathProgramCache]: Analyzing trace with hash -682929213, now seen corresponding path program 1 times [2019-11-15 22:43:31,860 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:43:31,861 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089152685] [2019-11-15 22:43:31,861 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:43:31,861 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:43:31,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:43:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:43:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:43:31,991 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:43:31,991 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 22:43:32,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:43:32 BoogieIcfgContainer [2019-11-15 22:43:32,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:43:32,023 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:43:32,023 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:43:32,023 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:43:32,024 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:43:31" (3/4) ... [2019-11-15 22:43:32,026 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-15 22:43:32,073 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_12ba261b-0056-45e6-9e8d-534c670484e3/bin/uautomizer/witness.graphml [2019-11-15 22:43:32,073 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:43:32,075 INFO L168 Benchmark]: Toolchain (without parser) took 1599.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 950.1 MB in the beginning and 1.0 GB in the end (delta: -84.3 MB). Peak memory consumption was 41.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:43:32,076 INFO L168 Benchmark]: CDTParser took 0.19 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. [2019-11-15 22:43:32,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-15 22:43:32,077 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.23 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 22:43:32,077 INFO L168 Benchmark]: Boogie Preprocessor took 61.09 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 22:43:32,078 INFO L168 Benchmark]: RCFGBuilder took 320.23 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:43:32,078 INFO L168 Benchmark]: TraceAbstraction took 771.85 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: 49.0 MB). Peak memory consumption was 49.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:43:32,079 INFO L168 Benchmark]: Witness Printer took 50.24 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:43:32,082 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 351.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.23 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 61.09 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 320.23 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 771.85 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: 49.0 MB). Peak memory consumption was 49.0 MB. Max. memory is 11.5 GB. * Witness Printer took 50.24 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: 7.0 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] = 1 [L27] i=0 VAL [N=1] [L27] COND TRUE i