./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/run_dir_2c553b3f-c2e0-4916-aecb-964e67f8718c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2c553b3f-c2e0-4916-aecb-964e67f8718c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2c553b3f-c2e0-4916-aecb-964e67f8718c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2c553b3f-c2e0-4916-aecb-964e67f8718c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/for_bounded_loop1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2c553b3f-c2e0-4916-aecb-964e67f8718c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2c553b3f-c2e0-4916-aecb-964e67f8718c/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 [2019-11-16 00:01:01,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:01:01,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:01:01,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:01:01,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:01:01,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:01:01,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:01:01,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:01:01,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:01:01,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:01:01,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:01:01,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:01:01,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:01:01,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:01:01,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:01:01,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:01:01,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:01:01,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:01:01,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:01:01,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:01:01,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:01:01,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:01:01,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:01:01,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:01:01,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:01:01,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:01:01,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:01:01,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:01:01,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:01:01,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:01:01,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:01:01,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:01:01,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:01:01,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:01:01,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:01:01,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:01:01,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:01:01,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:01:01,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:01:01,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:01:01,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:01:01,875 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2c553b3f-c2e0-4916-aecb-964e67f8718c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:01:01,888 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:01:01,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:01:01,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:01:01,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:01:01,890 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:01:01,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:01:01,890 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:01:01,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:01:01,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:01:01,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:01:01,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:01:01,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:01:01,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:01:01,892 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:01:01,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:01:01,892 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:01:01,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:01:01,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:01:01,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:01:01,893 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:01:01,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:01:01,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:01:01,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:01:01,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:01:01,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:01:01,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:01:01,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:01:01,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:01:01,895 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_2c553b3f-c2e0-4916-aecb-964e67f8718c/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 [2019-11-16 00:01:01,919 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:01:01,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:01:01,931 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:01:01,935 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:01:01,935 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:01:01,937 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2c553b3f-c2e0-4916-aecb-964e67f8718c/bin/uautomizer/../../sv-benchmarks/c/loops/for_bounded_loop1.c [2019-11-16 00:01:01,986 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2c553b3f-c2e0-4916-aecb-964e67f8718c/bin/uautomizer/data/9a9871a92/055a31472ef14fa193ccba6b7c1eca62/FLAG4aa4b329a [2019-11-16 00:01:02,363 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:01:02,364 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2c553b3f-c2e0-4916-aecb-964e67f8718c/sv-benchmarks/c/loops/for_bounded_loop1.c [2019-11-16 00:01:02,369 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2c553b3f-c2e0-4916-aecb-964e67f8718c/bin/uautomizer/data/9a9871a92/055a31472ef14fa193ccba6b7c1eca62/FLAG4aa4b329a [2019-11-16 00:01:02,380 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2c553b3f-c2e0-4916-aecb-964e67f8718c/bin/uautomizer/data/9a9871a92/055a31472ef14fa193ccba6b7c1eca62 [2019-11-16 00:01:02,383 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:01:02,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:01:02,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:01:02,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:01:02,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:01:02,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:01:02" (1/1) ... [2019-11-16 00:01:02,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c737f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:02, skipping insertion in model container [2019-11-16 00:01:02,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:01:02" (1/1) ... [2019-11-16 00:01:02,399 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:01:02,415 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:01:02,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:01:02,657 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:01:02,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:01:02,681 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:01:02,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:02 WrapperNode [2019-11-16 00:01:02,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:01:02,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:01:02,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:01:02,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:01:02,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:02" (1/1) ... [2019-11-16 00:01:02,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:02" (1/1) ... [2019-11-16 00:01:02,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:01:02,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:01:02,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:01:02,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:01:02,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:02" (1/1) ... [2019-11-16 00:01:02,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:02" (1/1) ... [2019-11-16 00:01:02,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:02" (1/1) ... [2019-11-16 00:01:02,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:02" (1/1) ... [2019-11-16 00:01:02,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:02" (1/1) ... [2019-11-16 00:01:02,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:02" (1/1) ... [2019-11-16 00:01:02,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:02" (1/1) ... [2019-11-16 00:01:02,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:01:02,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:01:02,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:01:02,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:01:02,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c553b3f-c2e0-4916-aecb-964e67f8718c/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 [2019-11-16 00:01:02,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:01:02,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:01:02,976 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:01:02,976 INFO L284 CfgBuilder]: Removed 11 assume(true) statements. [2019-11-16 00:01:02,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:02 BoogieIcfgContainer [2019-11-16 00:01:02,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:01:02,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:01:02,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:01:02,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:01:02,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:01:02" (1/3) ... [2019-11-16 00:01:02,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56df29e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:02, skipping insertion in model container [2019-11-16 00:01:02,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:02" (2/3) ... [2019-11-16 00:01:02,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56df29e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:02, skipping insertion in model container [2019-11-16 00:01:02,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:02" (3/3) ... [2019-11-16 00:01:02,986 INFO L109 eAbstractionObserver]: Analyzing ICFG for_bounded_loop1.c [2019-11-16 00:01:02,996 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:01:03,002 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-16 00:01:03,011 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-16 00:01:03,041 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:01:03,042 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:01:03,042 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:01:03,051 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:01:03,051 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:01:03,051 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:01:03,051 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:01:03,052 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:01:03,063 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-11-16 00:01:03,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-16 00:01:03,067 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:01:03,068 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-16 00:01:03,069 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:01:03,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:01:03,074 INFO L82 PathProgramCache]: Analyzing trace with hash 29745418, now seen corresponding path program 1 times [2019-11-16 00:01:03,080 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:01:03,080 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645190423] [2019-11-16 00:01:03,080 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:01:03,081 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:01:03,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:01:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:01:03,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:03,220 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645190423] [2019-11-16 00:01:03,221 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:01:03,221 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-16 00:01:03,221 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066658275] [2019-11-16 00:01:03,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-16 00:01:03,225 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:01:03,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-16 00:01:03,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-16 00:01:03,238 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2019-11-16 00:01:03,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:01:03,323 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2019-11-16 00:01:03,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-16 00:01:03,325 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-16 00:01:03,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:01:03,332 INFO L225 Difference]: With dead ends: 48 [2019-11-16 00:01:03,332 INFO L226 Difference]: Without dead ends: 22 [2019-11-16 00:01:03,335 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 [2019-11-16 00:01:03,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-16 00:01:03,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2019-11-16 00:01:03,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-16 00:01:03,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-11-16 00:01:03,363 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 5 [2019-11-16 00:01:03,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:01:03,364 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-11-16 00:01:03,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-16 00:01:03,364 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-11-16 00:01:03,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-16 00:01:03,364 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:01:03,365 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-16 00:01:03,365 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:01:03,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:01:03,366 INFO L82 PathProgramCache]: Analyzing trace with hash 922077226, now seen corresponding path program 1 times [2019-11-16 00:01:03,366 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:01:03,366 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491491941] [2019-11-16 00:01:03,366 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:01:03,367 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:01:03,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:01:03,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:01:03,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:03,386 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491491941] [2019-11-16 00:01:03,386 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:01:03,386 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-16 00:01:03,387 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957175119] [2019-11-16 00:01:03,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-16 00:01:03,388 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:01:03,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-16 00:01:03,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:01:03,388 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 3 states. [2019-11-16 00:01:03,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:01:03,402 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2019-11-16 00:01:03,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-16 00:01:03,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-16 00:01:03,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:01:03,404 INFO L225 Difference]: With dead ends: 22 [2019-11-16 00:01:03,404 INFO L226 Difference]: Without dead ends: 18 [2019-11-16 00:01:03,405 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 [2019-11-16 00:01:03,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-16 00:01:03,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-16 00:01:03,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-16 00:01:03,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-11-16 00:01:03,408 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 6 [2019-11-16 00:01:03,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:01:03,409 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-11-16 00:01:03,409 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-16 00:01:03,409 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-11-16 00:01:03,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-16 00:01:03,409 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:01:03,409 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:01:03,410 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:01:03,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:01:03,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1387310901, now seen corresponding path program 1 times [2019-11-16 00:01:03,410 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:01:03,410 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498431664] [2019-11-16 00:01:03,410 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:01:03,411 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:01:03,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:01:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:01:03,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:03,560 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498431664] [2019-11-16 00:01:03,560 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:01:03,560 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-16 00:01:03,560 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637475477] [2019-11-16 00:01:03,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-16 00:01:03,561 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:01:03,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-16 00:01:03,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:01:03,562 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 6 states. [2019-11-16 00:01:03,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:01:03,665 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-11-16 00:01:03,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-16 00:01:03,666 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2019-11-16 00:01:03,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:01:03,667 INFO L225 Difference]: With dead ends: 19 [2019-11-16 00:01:03,667 INFO L226 Difference]: Without dead ends: 15 [2019-11-16 00:01:03,667 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 [2019-11-16 00:01:03,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-16 00:01:03,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2019-11-16 00:01:03,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-16 00:01:03,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-11-16 00:01:03,671 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 8 [2019-11-16 00:01:03,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:01:03,671 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-11-16 00:01:03,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-16 00:01:03,672 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-11-16 00:01:03,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-16 00:01:03,672 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:01:03,672 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:01:03,672 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:01:03,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:01:03,673 INFO L82 PathProgramCache]: Analyzing trace with hash 681382811, now seen corresponding path program 1 times [2019-11-16 00:01:03,673 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:01:03,673 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764080487] [2019-11-16 00:01:03,673 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:01:03,673 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:01:03,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:01:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:01:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:01:03,763 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:01:03,764 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:01:03,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:01:03 BoogieIcfgContainer [2019-11-16 00:01:03,789 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:01:03,790 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:01:03,790 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:01:03,791 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:01:03,791 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:02" (3/4) ... [2019-11-16 00:01:03,793 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-16 00:01:03,864 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2c553b3f-c2e0-4916-aecb-964e67f8718c/bin/uautomizer/witness.graphml [2019-11-16 00:01:03,864 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:01:03,865 INFO L168 Benchmark]: Toolchain (without parser) took 1480.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -88.9 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:03,866 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:01:03,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:03,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.14 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. [2019-11-16 00:01:03,873 INFO L168 Benchmark]: Boogie Preprocessor took 15.77 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. [2019-11-16 00:01:03,874 INFO L168 Benchmark]: RCFGBuilder took 250.09 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:03,874 INFO L168 Benchmark]: TraceAbstraction took 810.55 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: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:03,874 INFO L168 Benchmark]: Witness Printer took 74.11 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. [2019-11-16 00:01:03,876 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 296.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.14 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 15.77 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 250.09 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 810.55 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: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 11.5 GB. * Witness Printer took 74.11 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: 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