./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/multivar_1-2.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_df5b39e3-7306-45e1-927b-c5abeb0be881/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_df5b39e3-7306-45e1-927b-c5abeb0be881/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_df5b39e3-7306-45e1-927b-c5abeb0be881/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_df5b39e3-7306-45e1-927b-c5abeb0be881/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-acceleration/multivar_1-2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_df5b39e3-7306-45e1-927b-c5abeb0be881/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_df5b39e3-7306-45e1-927b-c5abeb0be881/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 9ad235a775c611b52c97f09480429c410266efeb ......................................................................................................................................................................................................................... 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 08:54:19,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:19,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:19,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:19,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:19,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:19,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:19,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:19,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:19,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:19,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:19,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:19,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:19,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:19,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:19,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:19,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:19,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:19,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:19,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:19,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:19,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:19,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:19,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:19,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:19,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:19,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:19,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:19,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:19,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:19,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:19,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:19,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:19,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:19,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:19,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:19,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:19,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:19,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:19,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:19,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:19,849 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_df5b39e3-7306-45e1-927b-c5abeb0be881/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:54:19,861 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:19,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:19,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:19,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:19,868 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:19,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:19,869 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:19,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:19,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:19,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:19,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:19,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:19,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:19,870 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:19,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:19,870 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:19,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:19,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:19,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:19,872 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:19,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:19,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:19,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:19,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:19,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:19,873 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:54:19,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:54:19,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:19,873 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_df5b39e3-7306-45e1-927b-c5abeb0be881/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 -> 9ad235a775c611b52c97f09480429c410266efeb [2019-10-22 08:54:19,911 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:19,920 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:19,923 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:19,924 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:19,925 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:19,925 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_df5b39e3-7306-45e1-927b-c5abeb0be881/bin/uautomizer/../../sv-benchmarks/c/loop-acceleration/multivar_1-2.c [2019-10-22 08:54:19,972 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_df5b39e3-7306-45e1-927b-c5abeb0be881/bin/uautomizer/data/3236a6a07/03ca5b82a8484215b1311ac6d7dc7819/FLAGe1227115b [2019-10-22 08:54:20,348 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:20,349 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_df5b39e3-7306-45e1-927b-c5abeb0be881/sv-benchmarks/c/loop-acceleration/multivar_1-2.c [2019-10-22 08:54:20,354 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_df5b39e3-7306-45e1-927b-c5abeb0be881/bin/uautomizer/data/3236a6a07/03ca5b82a8484215b1311ac6d7dc7819/FLAGe1227115b [2019-10-22 08:54:20,365 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_df5b39e3-7306-45e1-927b-c5abeb0be881/bin/uautomizer/data/3236a6a07/03ca5b82a8484215b1311ac6d7dc7819 [2019-10-22 08:54:20,367 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:20,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:20,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:20,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:20,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:20,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:20" (1/1) ... [2019-10-22 08:54:20,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b554028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:20, skipping insertion in model container [2019-10-22 08:54:20,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:20" (1/1) ... [2019-10-22 08:54:20,384 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:20,397 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:20,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:20,525 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:20,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:20,622 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:20,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:20 WrapperNode [2019-10-22 08:54:20,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:20,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:20,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:20,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:20,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:20" (1/1) ... [2019-10-22 08:54:20,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:20" (1/1) ... [2019-10-22 08:54:20,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:20,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:20,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:20,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:20,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:20" (1/1) ... [2019-10-22 08:54:20,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:20" (1/1) ... [2019-10-22 08:54:20,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:20" (1/1) ... [2019-10-22 08:54:20,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:20" (1/1) ... [2019-10-22 08:54:20,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:20" (1/1) ... [2019-10-22 08:54:20,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:20" (1/1) ... [2019-10-22 08:54:20,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:20" (1/1) ... [2019-10-22 08:54:20,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:20,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:20,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:20,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:20,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_df5b39e3-7306-45e1-927b-c5abeb0be881/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 08:54:20,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:20,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:20,897 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:20,898 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 08:54:20,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:20 BoogieIcfgContainer [2019-10-22 08:54:20,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:20,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:20,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:20,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:20,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:20" (1/3) ... [2019-10-22 08:54:20,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61bde219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:20, skipping insertion in model container [2019-10-22 08:54:20,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:20" (2/3) ... [2019-10-22 08:54:20,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61bde219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:20, skipping insertion in model container [2019-10-22 08:54:20,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:20" (3/3) ... [2019-10-22 08:54:20,908 INFO L109 eAbstractionObserver]: Analyzing ICFG multivar_1-2.c [2019-10-22 08:54:20,917 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:20,924 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:54:20,935 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:54:20,959 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:20,960 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:54:20,960 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:20,960 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:20,960 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:20,960 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:20,961 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:20,961 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:20,974 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-10-22 08:54:20,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 08:54:20,981 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:20,982 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 08:54:20,984 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:20,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:20,990 INFO L82 PathProgramCache]: Analyzing trace with hash 29805000, now seen corresponding path program 1 times [2019-10-22 08:54:20,997 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:20,998 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320874671] [2019-10-22 08:54:20,998 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:20,998 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:20,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:21,134 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:21,136 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:54:21,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:54:21 BoogieIcfgContainer [2019-10-22 08:54:21,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:54:21,155 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:54:21,155 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:54:21,155 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:54:21,155 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:20" (3/4) ... [2019-10-22 08:54:21,158 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:54:21,198 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_df5b39e3-7306-45e1-927b-c5abeb0be881/bin/uautomizer/witness.graphml [2019-10-22 08:54:21,200 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:54:21,202 INFO L168 Benchmark]: Toolchain (without parser) took 832.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -162.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:21,203 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:21,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:21,206 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.25 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. [2019-10-22 08:54:21,206 INFO L168 Benchmark]: Boogie Preprocessor took 16.56 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. [2019-10-22 08:54:21,207 INFO L168 Benchmark]: RCFGBuilder took 223.92 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:21,209 INFO L168 Benchmark]: TraceAbstraction took 254.59 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:21,210 INFO L168 Benchmark]: Witness Printer took 45.07 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. [2019-10-22 08:54:21,212 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 254.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.25 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 16.56 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 223.92 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 254.59 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Witness Printer took 45.07 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. * 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: [L12] unsigned int x = __VERIFIER_nondet_uint(); [L13] unsigned int y = x + 1; [L15] COND FALSE !(x < 1024) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...