./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_dba0f624-2ed9-4c8c-9beb-3f51ab6b3013/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_dba0f624-2ed9-4c8c-9beb-3f51ab6b3013/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dba0f624-2ed9-4c8c-9beb-3f51ab6b3013/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dba0f624-2ed9-4c8c-9beb-3f51ab6b3013/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_dba0f624-2ed9-4c8c-9beb-3f51ab6b3013/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dba0f624-2ed9-4c8c-9beb-3f51ab6b3013/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 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 ....................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 07:57:23,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 07:57:23,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 07:57:23,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 07:57:23,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 07:57:23,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 07:57:23,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 07:57:23,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 07:57:23,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 07:57:23,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 07:57:23,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 07:57:23,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 07:57:23,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:57:23,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:57:23,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:57:23,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:57:23,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:57:23,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:57:23,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:57:23,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:57:23,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:57:23,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:57:23,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:57:23,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:57:23,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:57:23,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:57:23,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:57:23,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:57:23,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:57:23,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:57:23,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:57:23,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:57:23,713 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:57:23,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:57:23,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:57:23,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:57:23,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:57:23,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:57:23,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:57:23,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:57:23,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:57:23,720 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dba0f624-2ed9-4c8c-9beb-3f51ab6b3013/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 07:57:23,752 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:57:23,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:57:23,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:57:23,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:57:23,766 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 07:57:23,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:57:23,766 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 07:57:23,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 07:57:23,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 07:57:23,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:57:23,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 07:57:23,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 07:57:23,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 07:57:23,768 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 07:57:23,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 07:57:23,769 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:57:23,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 07:57:23,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:57:23,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 07:57:23,770 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 07:57:23,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 07:57:23,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 07:57:23,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:57:23,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 07:57:23,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 07:57:23,772 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 07:57:23,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 07:57:23,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 07:57:23,773 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_dba0f624-2ed9-4c8c-9beb-3f51ab6b3013/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 -> 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 [2019-11-20 07:57:23,986 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:57:24,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:57:24,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:57:24,010 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:57:24,011 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:57:24,012 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dba0f624-2ed9-4c8c-9beb-3f51ab6b3013/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2019-11-20 07:57:24,084 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dba0f624-2ed9-4c8c-9beb-3f51ab6b3013/bin/uautomizer/data/767692747/bb03d140f7aa46eb8e0b4cb2a194ac37/FLAGebaf5e8b9 [2019-11-20 07:57:24,632 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:57:24,634 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dba0f624-2ed9-4c8c-9beb-3f51ab6b3013/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2019-11-20 07:57:24,641 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dba0f624-2ed9-4c8c-9beb-3f51ab6b3013/bin/uautomizer/data/767692747/bb03d140f7aa46eb8e0b4cb2a194ac37/FLAGebaf5e8b9 [2019-11-20 07:57:24,914 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dba0f624-2ed9-4c8c-9beb-3f51ab6b3013/bin/uautomizer/data/767692747/bb03d140f7aa46eb8e0b4cb2a194ac37 [2019-11-20 07:57:24,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:57:24,920 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 07:57:24,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:57:24,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:57:24,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:57:24,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:57:24" (1/1) ... [2019-11-20 07:57:24,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@804da89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:57:24, skipping insertion in model container [2019-11-20 07:57:24,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:57:24" (1/1) ... [2019-11-20 07:57:24,941 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:57:24,965 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:57:25,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:57:25,166 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:57:25,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:57:25,283 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:57:25,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:57:25 WrapperNode [2019-11-20 07:57:25,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:57:25,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 07:57:25,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 07:57:25,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 07:57:25,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:57:25" (1/1) ... [2019-11-20 07:57:25,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:57:25" (1/1) ... [2019-11-20 07:57:25,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 07:57:25,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:57:25,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:57:25,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:57:25,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:57:25" (1/1) ... [2019-11-20 07:57:25,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:57:25" (1/1) ... [2019-11-20 07:57:25,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:57:25" (1/1) ... [2019-11-20 07:57:25,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:57:25" (1/1) ... [2019-11-20 07:57:25,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:57:25" (1/1) ... [2019-11-20 07:57:25,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:57:25" (1/1) ... [2019-11-20 07:57:25,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:57:25" (1/1) ... [2019-11-20 07:57:25,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:57:25,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:57:25,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:57:25,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:57:25,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:57:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dba0f624-2ed9-4c8c-9beb-3f51ab6b3013/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 07:57:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:57:25,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:57:25,815 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:57:25,815 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 07:57:25,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:57:25 BoogieIcfgContainer [2019-11-20 07:57:25,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:57:25,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 07:57:25,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 07:57:25,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 07:57:25,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:57:24" (1/3) ... [2019-11-20 07:57:25,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7c8822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:57:25, skipping insertion in model container [2019-11-20 07:57:25,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:57:25" (2/3) ... [2019-11-20 07:57:25,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7c8822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:57:25, skipping insertion in model container [2019-11-20 07:57:25,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:57:25" (3/3) ... [2019-11-20 07:57:25,826 INFO L109 eAbstractionObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2019-11-20 07:57:25,852 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 07:57:25,859 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-20 07:57:25,887 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-20 07:57:25,948 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 07:57:25,948 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 07:57:25,948 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 07:57:25,948 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 07:57:25,949 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 07:57:25,949 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 07:57:25,965 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 07:57:25,965 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 07:57:25,982 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-11-20 07:57:25,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 07:57:25,988 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:57:25,989 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 07:57:25,990 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:57:25,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:57:25,997 INFO L82 PathProgramCache]: Analyzing trace with hash 889538503, now seen corresponding path program 1 times [2019-11-20 07:57:26,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:57:26,007 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334799328] [2019-11-20 07:57:26,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:57:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:57:26,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:57:26,177 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334799328] [2019-11-20 07:57:26,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:57:26,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 07:57:26,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580723566] [2019-11-20 07:57:26,183 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 07:57:26,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:57:26,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 07:57:26,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 07:57:26,198 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2019-11-20 07:57:26,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:57:26,283 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2019-11-20 07:57:26,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 07:57:26,285 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-11-20 07:57:26,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:57:26,294 INFO L225 Difference]: With dead ends: 25 [2019-11-20 07:57:26,294 INFO L226 Difference]: Without dead ends: 14 [2019-11-20 07:57:26,297 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:57:26,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-20 07:57:26,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-20 07:57:26,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-20 07:57:26,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-11-20 07:57:26,329 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 6 [2019-11-20 07:57:26,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:57:26,329 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-11-20 07:57:26,329 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 07:57:26,330 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-11-20 07:57:26,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 07:57:26,330 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:57:26,330 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:57:26,331 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:57:26,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:57:26,331 INFO L82 PathProgramCache]: Analyzing trace with hash 148134121, now seen corresponding path program 1 times [2019-11-20 07:57:26,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:57:26,332 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786594624] [2019-11-20 07:57:26,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:57:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:57:26,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:57:26,385 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786594624] [2019-11-20 07:57:26,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:57:26,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 07:57:26,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787576868] [2019-11-20 07:57:26,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 07:57:26,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:57:26,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 07:57:26,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 07:57:26,389 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 4 states. [2019-11-20 07:57:26,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:57:26,435 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-11-20 07:57:26,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 07:57:26,436 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-20 07:57:26,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:57:26,437 INFO L225 Difference]: With dead ends: 15 [2019-11-20 07:57:26,437 INFO L226 Difference]: Without dead ends: 13 [2019-11-20 07:57:26,438 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:57:26,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-20 07:57:26,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-11-20 07:57:26,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-20 07:57:26,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-11-20 07:57:26,442 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 8 [2019-11-20 07:57:26,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:57:26,443 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-20 07:57:26,443 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 07:57:26,443 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-11-20 07:57:26,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 07:57:26,444 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:57:26,444 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:57:26,444 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:57:26,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:57:26,445 INFO L82 PathProgramCache]: Analyzing trace with hash 623096429, now seen corresponding path program 1 times [2019-11-20 07:57:26,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:57:26,446 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958721534] [2019-11-20 07:57:26,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:57:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:57:26,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:57:26,542 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958721534] [2019-11-20 07:57:26,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:57:26,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 07:57:26,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464961636] [2019-11-20 07:57:26,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 07:57:26,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:57:26,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 07:57:26,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:57:26,544 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 5 states. [2019-11-20 07:57:26,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:57:26,706 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2019-11-20 07:57:26,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 07:57:26,707 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-11-20 07:57:26,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:57:26,707 INFO L225 Difference]: With dead ends: 21 [2019-11-20 07:57:26,708 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 07:57:26,708 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-20 07:57:26,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 07:57:26,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 07:57:26,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 07:57:26,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 07:57:26,710 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-11-20 07:57:26,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:57:26,710 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:57:26,710 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 07:57:26,710 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 07:57:26,710 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 07:57:26,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 07:57:26,911 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 07:57:26,911 INFO L440 ceAbstractionStarter]: At program point L64(lines 34 84) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~main__i~0)) (.cse1 (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__nlen~0))) (or (and .cse0 (= 1 ULTIMATE.start_main_~__VERIFIER_assert__cond~0) .cse1) (and (not (= 0 ULTIMATE.start_main_~__VERIFIER_assert__cond~2)) (not (= 0 ULTIMATE.start_main_~__VERIFIER_assert__cond~0)) .cse0 .cse1))) [2019-11-20 07:57:26,912 INFO L447 ceAbstractionStarter]: At program point L95(lines 8 97) the Hoare annotation is: true [2019-11-20 07:57:26,912 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2019-11-20 07:57:26,912 INFO L444 ceAbstractionStarter]: For program point L21(lines 21 91) no Hoare annotation was computed. [2019-11-20 07:57:26,912 INFO L444 ceAbstractionStarter]: For program point L71(lines 71 80) no Hoare annotation was computed. [2019-11-20 07:57:26,912 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 07:57:26,913 INFO L444 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2019-11-20 07:57:26,913 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 07:57:26,913 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 07:57:26,913 INFO L444 ceAbstractionStarter]: For program point L28(lines 28 84) no Hoare annotation was computed. [2019-11-20 07:57:26,913 INFO L444 ceAbstractionStarter]: For program point L59(line 59) no Hoare annotation was computed. [2019-11-20 07:57:26,913 INFO L440 ceAbstractionStarter]: At program point L90(lines 9 97) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~main__i~0) [2019-11-20 07:57:26,914 INFO L444 ceAbstractionStarter]: For program point L57(lines 57 65) no Hoare annotation was computed. [2019-11-20 07:57:26,914 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2019-11-20 07:57:26,914 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2019-11-20 07:57:26,914 INFO L444 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2019-11-20 07:57:26,914 INFO L440 ceAbstractionStarter]: At program point L74(lines 47 82) the Hoare annotation is: (and (not (= 0 ULTIMATE.start_main_~__VERIFIER_assert__cond~0)) (<= 0 ULTIMATE.start_main_~main__i~0) (not (= 0 ULTIMATE.start_main_~__VERIFIER_assert__cond~1)) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__nlen~0)) [2019-11-20 07:57:26,915 INFO L444 ceAbstractionStarter]: For program point L41(lines 41 82) no Hoare annotation was computed. [2019-11-20 07:57:26,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:57:26 BoogieIcfgContainer [2019-11-20 07:57:26,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 07:57:26,945 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 07:57:26,945 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 07:57:26,945 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 07:57:26,946 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:57:25" (3/4) ... [2019-11-20 07:57:26,950 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 07:57:26,964 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 07:57:26,965 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 07:57:27,052 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_dba0f624-2ed9-4c8c-9beb-3f51ab6b3013/bin/uautomizer/witness.graphml [2019-11-20 07:57:27,052 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 07:57:27,055 INFO L168 Benchmark]: Toolchain (without parser) took 2134.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 950.1 MB in the beginning and 1.0 GB in the end (delta: -81.8 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. [2019-11-20 07:57:27,055 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:57:27,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -166.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 07:57:27,056 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:57:27,057 INFO L168 Benchmark]: Boogie Preprocessor took 46.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:57:27,057 INFO L168 Benchmark]: RCFGBuilder took 431.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-20 07:57:27,058 INFO L168 Benchmark]: TraceAbstraction took 1126.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.7 MB). Peak memory consumption was 61.7 MB. Max. memory is 11.5 GB. [2019-11-20 07:57:27,059 INFO L168 Benchmark]: Witness Printer took 107.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:57:27,074 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 363.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -166.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.14 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 46.97 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 431.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1126.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.7 MB). Peak memory consumption was 61.7 MB. Max. memory is 11.5 GB. * Witness Printer took 107.69 ms. Allocated memory is still 1.2 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: - PositiveResult [Line: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 59]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 0 <= main__i - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((!(0 == __VERIFIER_assert__cond) && 0 <= main__i) && !(0 == __VERIFIER_assert__cond)) && main__i < main__nlen - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((0 <= main__i && 1 == __VERIFIER_assert__cond) && main__i < main__nlen) || (((!(0 == __VERIFIER_assert__cond) && !(0 == __VERIFIER_assert__cond)) && 0 <= main__i) && main__i < main__nlen) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 3 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 29 SDtfs, 53 SDslu, 20 SDs, 0 SdLazy, 57 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 45 HoareAnnotationTreeSize, 4 FomulaSimplifications, 147 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 554 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 correct! Received shutdown request...