./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/callfpointer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4010cf4c-db1d-4c32-ae3b-4db0457a42c6/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4010cf4c-db1d-4c32-ae3b-4db0457a42c6/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4010cf4c-db1d-4c32-ae3b-4db0457a42c6/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4010cf4c-db1d-4c32-ae3b-4db0457a42c6/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/callfpointer.i -s /tmp/vcloud-vcloud-master/worker/run_dir_4010cf4c-db1d-4c32-ae3b-4db0457a42c6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4010cf4c-db1d-4c32-ae3b-4db0457a42c6/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 435d34faa09957ba601ec60e56eab78c2d058274 ........................................................................................................................................................................................................................................... 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-a4ecdab [2020-11-30 03:37:17,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:37:17,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:37:18,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:37:18,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:37:18,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:37:18,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:37:18,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:37:18,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:37:18,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:37:18,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:37:18,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:37:18,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:37:18,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:37:18,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:37:18,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:37:18,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:37:18,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:37:18,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:37:18,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:37:18,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:37:18,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:37:18,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:37:18,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:37:18,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:37:18,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:37:18,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:37:18,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:37:18,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:37:18,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:37:18,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:37:18,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:37:18,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:37:18,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:37:18,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:37:18,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:37:18,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:37:18,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:37:18,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:37:18,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:37:18,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:37:18,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4010cf4c-db1d-4c32-ae3b-4db0457a42c6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 03:37:18,185 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:37:18,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:37:18,187 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:37:18,188 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:37:18,188 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:37:18,189 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:37:18,189 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 03:37:18,189 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:37:18,190 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:37:18,190 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 03:37:18,192 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 03:37:18,192 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:37:18,193 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 03:37:18,193 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 03:37:18,193 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 03:37:18,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:37:18,195 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:37:18,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 03:37:18,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:37:18,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:37:18,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:37:18,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:37:18,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:37:18,198 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:37:18,198 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:37:18,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:37:18,199 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:37:18,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:37:18,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:37:18,200 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:37:18,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:37:18,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:37:18,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:37:18,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:37:18,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:37:18,203 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 03:37:18,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 03:37:18,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:37:18,204 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:37:18,204 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:37:18,205 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_4010cf4c-db1d-4c32-ae3b-4db0457a42c6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4010cf4c-db1d-4c32-ae3b-4db0457a42c6/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 435d34faa09957ba601ec60e56eab78c2d058274 [2020-11-30 03:37:18,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:37:18,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:37:18,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:37:18,719 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:37:18,720 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:37:18,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4010cf4c-db1d-4c32-ae3b-4db0457a42c6/bin/utaipan/../../sv-benchmarks/c/ldv-regression/callfpointer.i [2020-11-30 03:37:18,808 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4010cf4c-db1d-4c32-ae3b-4db0457a42c6/bin/utaipan/data/943a01d9c/41db019bfdac4e0085f165789b002327/FLAG45909b806 [2020-11-30 03:37:19,336 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:37:19,337 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4010cf4c-db1d-4c32-ae3b-4db0457a42c6/sv-benchmarks/c/ldv-regression/callfpointer.i [2020-11-30 03:37:19,345 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4010cf4c-db1d-4c32-ae3b-4db0457a42c6/bin/utaipan/data/943a01d9c/41db019bfdac4e0085f165789b002327/FLAG45909b806 [2020-11-30 03:37:19,688 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4010cf4c-db1d-4c32-ae3b-4db0457a42c6/bin/utaipan/data/943a01d9c/41db019bfdac4e0085f165789b002327 [2020-11-30 03:37:19,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:37:19,696 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:37:19,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:37:19,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:37:19,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:37:19,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:37:19" (1/1) ... [2020-11-30 03:37:19,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a15879d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:37:19, skipping insertion in model container [2020-11-30 03:37:19,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:37:19" (1/1) ... [2020-11-30 03:37:19,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:37:19,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:37:19,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:37:19,999 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:37:20,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:37:20,036 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:37:20,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:37:20 WrapperNode [2020-11-30 03:37:20,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:37:20,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:37:20,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:37:20,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:37:20,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:37:20" (1/1) ... [2020-11-30 03:37:20,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:37:20" (1/1) ... [2020-11-30 03:37:20,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:37:20,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:37:20,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:37:20,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:37:20,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:37:20" (1/1) ... [2020-11-30 03:37:20,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:37:20" (1/1) ... [2020-11-30 03:37:20,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:37:20" (1/1) ... [2020-11-30 03:37:20,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:37:20" (1/1) ... [2020-11-30 03:37:20,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:37:20" (1/1) ... [2020-11-30 03:37:20,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:37:20" (1/1) ... [2020-11-30 03:37:20,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:37:20" (1/1) ... [2020-11-30 03:37:20,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:37:20,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:37:20,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:37:20,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:37:20,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:37:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4010cf4c-db1d-4c32-ae3b-4db0457a42c6/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 [2020-11-30 03:37:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 03:37:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:37:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:37:20,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:37:20,762 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:37:20,763 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-30 03:37:20,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:37:20 BoogieIcfgContainer [2020-11-30 03:37:20,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:37:20,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:37:20,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:37:20,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:37:20,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:37:19" (1/3) ... [2020-11-30 03:37:20,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c51ede4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:37:20, skipping insertion in model container [2020-11-30 03:37:20,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:37:20" (2/3) ... [2020-11-30 03:37:20,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c51ede4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:37:20, skipping insertion in model container [2020-11-30 03:37:20,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:37:20" (3/3) ... [2020-11-30 03:37:20,778 INFO L111 eAbstractionObserver]: Analyzing ICFG callfpointer.i [2020-11-30 03:37:20,792 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:37:20,799 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 03:37:20,817 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 03:37:20,842 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:37:20,843 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:37:20,843 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:37:20,843 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:37:20,843 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:37:20,844 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:37:20,844 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:37:20,844 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:37:20,858 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-11-30 03:37:20,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-30 03:37:20,863 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:37:20,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-30 03:37:20,865 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:37:20,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:37:20,870 INFO L82 PathProgramCache]: Analyzing trace with hash 49173, now seen corresponding path program 1 times [2020-11-30 03:37:20,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:37:20,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421771907] [2020-11-30 03:37:20,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:37:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:37:20,998 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:37:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:37:21,026 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:37:21,051 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 03:37:21,052 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 03:37:21,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 03:37:21,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:37:21 BoogieIcfgContainer [2020-11-30 03:37:21,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:37:21,076 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:37:21,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:37:21,077 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:37:21,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:37:20" (3/4) ... [2020-11-30 03:37:21,080 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 03:37:21,124 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4010cf4c-db1d-4c32-ae3b-4db0457a42c6/bin/utaipan/witness.graphml [2020-11-30 03:37:21,125 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:37:21,128 INFO L168 Benchmark]: Toolchain (without parser) took 1429.97 ms. Allocated memory was 83.9 MB in the beginning and 125.8 MB in the end (delta: 41.9 MB). Free memory was 49.7 MB in the beginning and 74.7 MB in the end (delta: -25.0 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2020-11-30 03:37:21,129 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 83.9 MB. Free memory was 57.0 MB in the beginning and 57.0 MB in the end (delta: 25.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:37:21,131 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.16 ms. Allocated memory was 83.9 MB in the beginning and 125.8 MB in the end (delta: 41.9 MB). Free memory was 49.5 MB in the beginning and 103.5 MB in the end (delta: -54.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 03:37:21,133 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.04 ms. Allocated memory is still 125.8 MB. Free memory was 103.5 MB in the beginning and 102.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:37:21,134 INFO L168 Benchmark]: Boogie Preprocessor took 21.74 ms. Allocated memory is still 125.8 MB. Free memory was 102.4 MB in the beginning and 101.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:37:21,135 INFO L168 Benchmark]: RCFGBuilder took 665.66 ms. Allocated memory is still 125.8 MB. Free memory was 101.4 MB in the beginning and 88.3 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 03:37:21,137 INFO L168 Benchmark]: TraceAbstraction took 306.84 ms. Allocated memory is still 125.8 MB. Free memory was 87.8 MB in the beginning and 76.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 03:37:21,138 INFO L168 Benchmark]: Witness Printer took 48.89 ms. Allocated memory is still 125.8 MB. Free memory was 76.2 MB in the beginning and 74.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:37:21,144 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 83.9 MB. Free memory was 57.0 MB in the beginning and 57.0 MB in the end (delta: 25.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 336.16 ms. Allocated memory was 83.9 MB in the beginning and 125.8 MB in the end (delta: 41.9 MB). Free memory was 49.5 MB in the beginning and 103.5 MB in the end (delta: -54.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.04 ms. Allocated memory is still 125.8 MB. Free memory was 103.5 MB in the beginning and 102.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.74 ms. Allocated memory is still 125.8 MB. Free memory was 102.4 MB in the beginning and 101.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 665.66 ms. Allocated memory is still 125.8 MB. Free memory was 101.4 MB in the beginning and 88.3 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 306.84 ms. Allocated memory is still 125.8 MB. Free memory was 87.8 MB in the beginning and 76.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 48.89 ms. Allocated memory is still 125.8 MB. Free memory was 76.2 MB in the beginning and 74.7 MB in the end (delta: 1.5 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: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] COND TRUE i==1 [L3] __assert_fail("0", "callfpointer.i", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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, 3 NumberOfCodeBlocks, 3 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...