./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8ee77d5a-10e9-4507-8d2f-e73d1cae14a7/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8ee77d5a-10e9-4507-8d2f-e73d1cae14a7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8ee77d5a-10e9-4507-8d2f-e73d1cae14a7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8ee77d5a-10e9-4507-8d2f-e73d1cae14a7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/for_bounded_loop1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8ee77d5a-10e9-4507-8d2f-e73d1cae14a7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8ee77d5a-10e9-4507-8d2f-e73d1cae14a7/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 108d15887a93306fe736fe6c2e7f14ff3dbea99b .......................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-7b2dab5 [2020-12-09 12:13:57,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 12:13:57,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 12:13:57,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 12:13:57,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 12:13:57,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 12:13:57,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 12:13:57,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 12:13:57,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 12:13:57,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 12:13:57,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 12:13:57,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 12:13:57,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 12:13:57,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 12:13:57,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 12:13:57,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 12:13:57,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 12:13:57,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 12:13:57,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 12:13:57,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 12:13:57,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 12:13:57,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 12:13:57,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 12:13:57,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 12:13:57,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 12:13:57,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 12:13:57,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 12:13:57,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 12:13:57,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 12:13:57,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 12:13:57,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 12:13:57,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 12:13:57,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 12:13:57,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 12:13:57,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 12:13:57,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 12:13:57,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 12:13:57,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 12:13:57,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 12:13:57,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 12:13:57,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 12:13:57,996 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8ee77d5a-10e9-4507-8d2f-e73d1cae14a7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 12:13:58,020 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 12:13:58,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 12:13:58,021 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 12:13:58,021 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 12:13:58,021 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 12:13:58,022 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 12:13:58,022 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 12:13:58,022 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 12:13:58,022 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 12:13:58,022 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 12:13:58,022 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 12:13:58,023 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 12:13:58,023 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 12:13:58,023 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 12:13:58,023 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 12:13:58,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 12:13:58,024 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 12:13:58,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 12:13:58,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 12:13:58,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 12:13:58,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 12:13:58,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 12:13:58,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 12:13:58,025 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 12:13:58,025 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 12:13:58,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 12:13:58,026 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 12:13:58,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 12:13:58,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 12:13:58,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 12:13:58,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 12:13:58,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 12:13:58,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 12:13:58,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 12:13:58,027 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 12:13:58,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 12:13:58,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 12:13:58,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 12:13:58,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 12:13:58,028 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_8ee77d5a-10e9-4507-8d2f-e73d1cae14a7/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8ee77d5a-10e9-4507-8d2f-e73d1cae14a7/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 108d15887a93306fe736fe6c2e7f14ff3dbea99b [2020-12-09 12:13:58,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 12:13:58,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 12:13:58,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 12:13:58,229 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 12:13:58,230 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 12:13:58,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8ee77d5a-10e9-4507-8d2f-e73d1cae14a7/bin/utaipan/../../sv-benchmarks/c/loops/for_bounded_loop1.c [2020-12-09 12:13:58,272 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ee77d5a-10e9-4507-8d2f-e73d1cae14a7/bin/utaipan/data/d87eca4d6/7da5fc03f5e248fcbc6afbd3050fe0a5/FLAGb4d4dcbe6 [2020-12-09 12:13:58,640 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 12:13:58,640 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8ee77d5a-10e9-4507-8d2f-e73d1cae14a7/sv-benchmarks/c/loops/for_bounded_loop1.c [2020-12-09 12:13:58,645 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ee77d5a-10e9-4507-8d2f-e73d1cae14a7/bin/utaipan/data/d87eca4d6/7da5fc03f5e248fcbc6afbd3050fe0a5/FLAGb4d4dcbe6 [2020-12-09 12:13:58,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8ee77d5a-10e9-4507-8d2f-e73d1cae14a7/bin/utaipan/data/d87eca4d6/7da5fc03f5e248fcbc6afbd3050fe0a5 [2020-12-09 12:13:58,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 12:13:58,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 12:13:58,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 12:13:58,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 12:13:58,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 12:13:58,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:13:58" (1/1) ... [2020-12-09 12:13:58,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c158971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:58, skipping insertion in model container [2020-12-09 12:13:58,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:13:58" (1/1) ... [2020-12-09 12:13:58,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 12:13:58,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 12:13:58,779 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_8ee77d5a-10e9-4507-8d2f-e73d1cae14a7/sv-benchmarks/c/loops/for_bounded_loop1.c[416,429] [2020-12-09 12:13:58,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 12:13:58,799 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 12:13:58,810 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_8ee77d5a-10e9-4507-8d2f-e73d1cae14a7/sv-benchmarks/c/loops/for_bounded_loop1.c[416,429] [2020-12-09 12:13:58,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 12:13:58,829 INFO L208 MainTranslator]: Completed translation [2020-12-09 12:13:58,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:58 WrapperNode [2020-12-09 12:13:58,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 12:13:58,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 12:13:58,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 12:13:58,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 12:13:58,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:58" (1/1) ... [2020-12-09 12:13:58,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:58" (1/1) ... [2020-12-09 12:13:58,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 12:13:58,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 12:13:58,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 12:13:58,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 12:13:58,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:58" (1/1) ... [2020-12-09 12:13:58,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:58" (1/1) ... [2020-12-09 12:13:58,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:58" (1/1) ... [2020-12-09 12:13:58,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:58" (1/1) ... [2020-12-09 12:13:58,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:58" (1/1) ... [2020-12-09 12:13:58,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:58" (1/1) ... [2020-12-09 12:13:58,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:58" (1/1) ... [2020-12-09 12:13:58,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 12:13:58,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 12:13:58,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 12:13:58,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 12:13:58,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ee77d5a-10e9-4507-8d2f-e73d1cae14a7/bin/utaipan/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 [2020-12-09 12:13:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 12:13:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 12:13:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 12:13:58,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 12:13:59,107 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 12:13:59,107 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2020-12-09 12:13:59,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:13:59 BoogieIcfgContainer [2020-12-09 12:13:59,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 12:13:59,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 12:13:59,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 12:13:59,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 12:13:59,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:13:58" (1/3) ... [2020-12-09 12:13:59,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72509087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:13:59, skipping insertion in model container [2020-12-09 12:13:59,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:58" (2/3) ... [2020-12-09 12:13:59,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72509087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:13:59, skipping insertion in model container [2020-12-09 12:13:59,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:13:59" (3/3) ... [2020-12-09 12:13:59,117 INFO L111 eAbstractionObserver]: Analyzing ICFG for_bounded_loop1.c [2020-12-09 12:13:59,129 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 12:13:59,132 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-09 12:13:59,139 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-09 12:13:59,156 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 12:13:59,157 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 12:13:59,157 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 12:13:59,157 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 12:13:59,157 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 12:13:59,157 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 12:13:59,157 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 12:13:59,157 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 12:13:59,166 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-12-09 12:13:59,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 12:13:59,170 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:13:59,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 12:13:59,171 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 12:13:59,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:13:59,175 INFO L82 PathProgramCache]: Analyzing trace with hash 85235575, now seen corresponding path program 1 times [2020-12-09 12:13:59,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:13:59,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816786094] [2020-12-09 12:13:59,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:13:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:13:59,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 12:13:59,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816786094] [2020-12-09 12:13:59,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:13:59,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 12:13:59,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604285073] [2020-12-09 12:13:59,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 12:13:59,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:13:59,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 12:13:59,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:13:59,341 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2020-12-09 12:13:59,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:13:59,368 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2020-12-09 12:13:59,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 12:13:59,370 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 12:13:59,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:13:59,376 INFO L225 Difference]: With dead ends: 44 [2020-12-09 12:13:59,376 INFO L226 Difference]: Without dead ends: 25 [2020-12-09 12:13:59,378 INFO L677 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 [2020-12-09 12:13:59,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-12-09 12:13:59,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 16. [2020-12-09 12:13:59,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-09 12:13:59,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-12-09 12:13:59,403 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 5 [2020-12-09 12:13:59,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:13:59,403 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-12-09 12:13:59,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 12:13:59,403 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-12-09 12:13:59,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 12:13:59,403 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:13:59,404 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 12:13:59,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 12:13:59,404 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 12:13:59,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:13:59,405 INFO L82 PathProgramCache]: Analyzing trace with hash 85187462, now seen corresponding path program 1 times [2020-12-09 12:13:59,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:13:59,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483417331] [2020-12-09 12:13:59,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:13:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:13:59,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 12:13:59,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483417331] [2020-12-09 12:13:59,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:13:59,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 12:13:59,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314844751] [2020-12-09 12:13:59,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 12:13:59,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:13:59,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 12:13:59,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 12:13:59,457 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 4 states. [2020-12-09 12:13:59,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:13:59,478 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-12-09 12:13:59,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 12:13:59,478 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-12-09 12:13:59,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:13:59,479 INFO L225 Difference]: With dead ends: 19 [2020-12-09 12:13:59,479 INFO L226 Difference]: Without dead ends: 17 [2020-12-09 12:13:59,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 12:13:59,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-09 12:13:59,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-12-09 12:13:59,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-09 12:13:59,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-12-09 12:13:59,484 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 5 [2020-12-09 12:13:59,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:13:59,484 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-12-09 12:13:59,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 12:13:59,485 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-12-09 12:13:59,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 12:13:59,485 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:13:59,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 12:13:59,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 12:13:59,486 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 12:13:59,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:13:59,487 INFO L82 PathProgramCache]: Analyzing trace with hash -501164262, now seen corresponding path program 1 times [2020-12-09 12:13:59,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:13:59,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707762861] [2020-12-09 12:13:59,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:13:59,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:13:59,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 12:13:59,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707762861] [2020-12-09 12:13:59,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:13:59,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 12:13:59,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464765433] [2020-12-09 12:13:59,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 12:13:59,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:13:59,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 12:13:59,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-09 12:13:59,558 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 6 states. [2020-12-09 12:13:59,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:13:59,613 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2020-12-09 12:13:59,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 12:13:59,613 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2020-12-09 12:13:59,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:13:59,614 INFO L225 Difference]: With dead ends: 27 [2020-12-09 12:13:59,614 INFO L226 Difference]: Without dead ends: 25 [2020-12-09 12:13:59,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-12-09 12:13:59,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-12-09 12:13:59,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2020-12-09 12:13:59,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-09 12:13:59,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-12-09 12:13:59,618 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 8 [2020-12-09 12:13:59,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:13:59,618 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-12-09 12:13:59,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 12:13:59,619 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-12-09 12:13:59,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 12:13:59,619 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:13:59,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 12:13:59,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 12:13:59,619 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 12:13:59,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:13:59,620 INFO L82 PathProgramCache]: Analyzing trace with hash -873319098, now seen corresponding path program 1 times [2020-12-09 12:13:59,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:13:59,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087097915] [2020-12-09 12:13:59,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:13:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 12:13:59,639 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 12:13:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 12:13:59,653 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 12:13:59,668 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 12:13:59,668 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 12:13:59,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 12:13:59,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:13:59 BoogieIcfgContainer [2020-12-09 12:13:59,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 12:13:59,686 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 12:13:59,686 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 12:13:59,686 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 12:13:59,687 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:13:59" (3/4) ... [2020-12-09 12:13:59,688 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 12:13:59,717 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8ee77d5a-10e9-4507-8d2f-e73d1cae14a7/bin/utaipan/witness.graphml [2020-12-09 12:13:59,717 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 12:13:59,718 INFO L168 Benchmark]: Toolchain (without parser) took 1059.64 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 70.6 MB in the beginning and 53.4 MB in the end (delta: 17.2 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. [2020-12-09 12:13:59,718 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 67.1 MB. Free memory is still 39.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 12:13:59,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.14 ms. Allocated memory is still 98.6 MB. Free memory was 70.3 MB in the beginning and 76.9 MB in the end (delta: -6.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 12:13:59,719 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.40 ms. Allocated memory is still 98.6 MB. Free memory was 76.9 MB in the beginning and 75.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 12:13:59,720 INFO L168 Benchmark]: Boogie Preprocessor took 14.03 ms. Allocated memory is still 98.6 MB. Free memory was 75.5 MB in the beginning and 74.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 12:13:59,720 INFO L168 Benchmark]: RCFGBuilder took 236.12 ms. Allocated memory is still 98.6 MB. Free memory was 74.2 MB in the beginning and 59.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 12:13:59,720 INFO L168 Benchmark]: TraceAbstraction took 575.20 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 59.2 MB in the beginning and 55.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. [2020-12-09 12:13:59,721 INFO L168 Benchmark]: Witness Printer took 30.56 ms. Allocated memory is still 119.5 MB. Free memory was 55.5 MB in the beginning and 53.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 12:13:59,726 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 67.1 MB. Free memory is still 39.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 171.14 ms. Allocated memory is still 98.6 MB. Free memory was 70.3 MB in the beginning and 76.9 MB in the end (delta: -6.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.40 ms. Allocated memory is still 98.6 MB. Free memory was 76.9 MB in the beginning and 75.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 14.03 ms. Allocated memory is still 98.6 MB. Free memory was 75.5 MB in the beginning and 74.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 236.12 ms. Allocated memory is still 98.6 MB. Free memory was 74.2 MB in the beginning and 59.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 575.20 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 59.2 MB in the beginning and 55.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. * Witness Printer took 30.56 ms. Allocated memory is still 119.5 MB. Free memory was 55.5 MB in the beginning and 53.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int i=0, x=0, y=0; [L20] int n=__VERIFIER_nondet_int(); [L21] COND FALSE !(!(n>0)) [L22] i=0 [L22] COND TRUE i