./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/for_bounded_loop1.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/working_dir_c1902213-4209-4a9a-9ec5-f174b2faa701/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c1902213-4209-4a9a-9ec5-f174b2faa701/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c1902213-4209-4a9a-9ec5-f174b2faa701/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c1902213-4209-4a9a-9ec5-f174b2faa701/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/for_bounded_loop1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c1902213-4209-4a9a-9ec5-f174b2faa701/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c1902213-4209-4a9a-9ec5-f174b2faa701/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 1a0e89cb1a2148382c7546df46cfbb79c04a1e70 ........................................................................................................................................................................................................................................................................................................................................................ 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 [2019-10-22 08:56:28,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:28,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:28,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:56:28,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:56:28,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:56:28,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:56:28,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:56:28,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:56:28,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:56:28,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:56:28,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:56:28,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:28,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:28,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:28,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:28,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:28,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:28,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:28,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:28,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:28,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:28,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:28,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:28,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:56:28,959 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:56:28,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:56:28,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:56:28,960 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:56:28,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:56:28,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:28,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:28,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:28,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:28,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:28,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:28,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:28,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:28,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:28,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:28,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:28,967 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c1902213-4209-4a9a-9ec5-f174b2faa701/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:56:28,977 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:28,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:28,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:28,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:28,979 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:28,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:28,979 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:56:28,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:56:28,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:56:28,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:28,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:56:28,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:56:28,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:56:28,980 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:56:28,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:56:28,981 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:28,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:56:28,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:28,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:28,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:56:28,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:56:28,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:56:28,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:28,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:56:28,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:56:28,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:56:28,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:56:28,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:56:28,984 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/working_dir_c1902213-4209-4a9a-9ec5-f174b2faa701/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 -> 1a0e89cb1a2148382c7546df46cfbb79c04a1e70 [2019-10-22 08:56:29,010 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:29,023 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:29,026 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:29,029 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:29,029 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:29,030 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c1902213-4209-4a9a-9ec5-f174b2faa701/bin/uautomizer/../../sv-benchmarks/c/loops/for_bounded_loop1.c [2019-10-22 08:56:29,076 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c1902213-4209-4a9a-9ec5-f174b2faa701/bin/uautomizer/data/38ade3006/7b318171775b4ef08b5c4c524941e86f/FLAG1d2e14a28 [2019-10-22 08:56:29,426 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:29,427 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c1902213-4209-4a9a-9ec5-f174b2faa701/sv-benchmarks/c/loops/for_bounded_loop1.c [2019-10-22 08:56:29,431 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c1902213-4209-4a9a-9ec5-f174b2faa701/bin/uautomizer/data/38ade3006/7b318171775b4ef08b5c4c524941e86f/FLAG1d2e14a28 [2019-10-22 08:56:29,441 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c1902213-4209-4a9a-9ec5-f174b2faa701/bin/uautomizer/data/38ade3006/7b318171775b4ef08b5c4c524941e86f [2019-10-22 08:56:29,444 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:29,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:56:29,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:29,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:29,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:29,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@134bd60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29, skipping insertion in model container [2019-10-22 08:56:29,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,459 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:29,475 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:56:29,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:29,638 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:56:29,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:29,721 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:56:29,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29 WrapperNode [2019-10-22 08:56:29,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:29,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:29,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:56:29,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:56:29,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:29,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:56:29,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:56:29,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:56:29,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:56:29,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:56:29,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:56:29,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:56:29,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1902213-4209-4a9a-9ec5-f174b2faa701/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 [2019-10-22 08:56:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:29,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:56:30,031 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:30,032 INFO L284 CfgBuilder]: Removed 11 assume(true) statements. [2019-10-22 08:56:30,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:30 BoogieIcfgContainer [2019-10-22 08:56:30,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:30,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:56:30,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:56:30,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:56:30,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:56:29" (1/3) ... [2019-10-22 08:56:30,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275d76c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:30, skipping insertion in model container [2019-10-22 08:56:30,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (2/3) ... [2019-10-22 08:56:30,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275d76c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:30, skipping insertion in model container [2019-10-22 08:56:30,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:30" (3/3) ... [2019-10-22 08:56:30,041 INFO L109 eAbstractionObserver]: Analyzing ICFG for_bounded_loop1.c [2019-10-22 08:56:30,058 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:56:30,065 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 08:56:30,092 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 08:56:30,127 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:56:30,127 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:56:30,127 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:56:30,128 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:30,128 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:30,128 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:56:30,128 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:30,128 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:56:30,141 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-10-22 08:56:30,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 08:56:30,147 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:30,154 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 08:56:30,156 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:30,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:30,169 INFO L82 PathProgramCache]: Analyzing trace with hash 29745418, now seen corresponding path program 1 times [2019-10-22 08:56:30,178 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:30,178 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670968438] [2019-10-22 08:56:30,178 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:30,179 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:30,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:30,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:30,374 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670968438] [2019-10-22 08:56:30,375 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:30,375 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:56:30,375 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006721400] [2019-10-22 08:56:30,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:56:30,381 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:30,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:56:30,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:56:30,397 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2019-10-22 08:56:30,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:30,508 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2019-10-22 08:56:30,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:56:30,511 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-10-22 08:56:30,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:30,522 INFO L225 Difference]: With dead ends: 48 [2019-10-22 08:56:30,523 INFO L226 Difference]: Without dead ends: 22 [2019-10-22 08:56:30,525 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:56:30,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-10-22 08:56:30,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2019-10-22 08:56:30,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-22 08:56:30,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-10-22 08:56:30,559 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 5 [2019-10-22 08:56:30,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:30,560 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-10-22 08:56:30,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:56:30,560 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-10-22 08:56:30,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 08:56:30,560 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:30,561 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:56:30,561 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:30,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:30,561 INFO L82 PathProgramCache]: Analyzing trace with hash 922077226, now seen corresponding path program 1 times [2019-10-22 08:56:30,562 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:30,562 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680620503] [2019-10-22 08:56:30,562 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:30,563 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:30,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:30,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:30,594 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680620503] [2019-10-22 08:56:30,594 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:30,595 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:56:30,595 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198553502] [2019-10-22 08:56:30,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:56:30,596 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:30,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:56:30,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:56:30,597 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 3 states. [2019-10-22 08:56:30,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:30,622 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2019-10-22 08:56:30,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:56:30,622 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-10-22 08:56:30,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:30,623 INFO L225 Difference]: With dead ends: 22 [2019-10-22 08:56:30,623 INFO L226 Difference]: Without dead ends: 18 [2019-10-22 08:56:30,624 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 [2019-10-22 08:56:30,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-22 08:56:30,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-22 08:56:30,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-22 08:56:30,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-10-22 08:56:30,629 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 6 [2019-10-22 08:56:30,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:30,629 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-10-22 08:56:30,629 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:56:30,629 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-10-22 08:56:30,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 08:56:30,630 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:30,630 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:30,630 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:30,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:30,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1387310901, now seen corresponding path program 1 times [2019-10-22 08:56:30,631 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:30,631 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431752933] [2019-10-22 08:56:30,631 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:30,631 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:30,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:30,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:30,766 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431752933] [2019-10-22 08:56:30,767 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:30,767 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:56:30,767 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151192876] [2019-10-22 08:56:30,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:56:30,767 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:30,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:56:30,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:56:30,768 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 6 states. [2019-10-22 08:56:30,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:30,854 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-10-22 08:56:30,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:56:30,855 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2019-10-22 08:56:30,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:30,856 INFO L225 Difference]: With dead ends: 19 [2019-10-22 08:56:30,856 INFO L226 Difference]: Without dead ends: 15 [2019-10-22 08:56:30,856 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:56:30,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-22 08:56:30,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2019-10-22 08:56:30,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-22 08:56:30,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-10-22 08:56:30,859 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 8 [2019-10-22 08:56:30,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:30,859 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-10-22 08:56:30,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:56:30,859 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-10-22 08:56:30,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 08:56:30,860 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:30,860 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:30,860 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:30,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:30,861 INFO L82 PathProgramCache]: Analyzing trace with hash 681382811, now seen corresponding path program 1 times [2019-10-22 08:56:30,861 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:30,861 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219313366] [2019-10-22 08:56:30,861 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:30,861 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:30,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:30,918 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:30,918 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:56:30,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:56:30 BoogieIcfgContainer [2019-10-22 08:56:30,935 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:56:30,935 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:30,935 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:30,935 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:30,936 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:30" (3/4) ... [2019-10-22 08:56:30,937 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:56:30,974 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c1902213-4209-4a9a-9ec5-f174b2faa701/bin/uautomizer/witness.graphml [2019-10-22 08:56:30,974 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:30,976 INFO L168 Benchmark]: Toolchain (without parser) took 1530.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -114.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:30,976 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:30,977 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -201.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:30,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.72 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:30,978 INFO L168 Benchmark]: Boogie Preprocessor took 18.52 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:30,978 INFO L168 Benchmark]: RCFGBuilder took 261.51 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:30,979 INFO L168 Benchmark]: TraceAbstraction took 901.03 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: 61.9 MB). Peak memory consumption was 61.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:30,979 INFO L168 Benchmark]: Witness Printer took 39.13 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:30,982 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 276.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -201.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.72 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.52 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 261.51 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 901.03 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: 61.9 MB). Peak memory consumption was 61.9 MB. Max. memory is 11.5 GB. * Witness Printer took 39.13 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int i=0, x=0, y=0; [L15] int n=__VERIFIER_nondet_int(); [L16] COND FALSE !(!(n>0)) [L17] i=0 [L17] COND TRUE i