./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-sorted-1.i --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_c1bd5487-c432-4c22-ac5a-f459a9ebb126/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c1bd5487-c432-4c22-ac5a-f459a9ebb126/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c1bd5487-c432-4c22-ac5a-f459a9ebb126/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c1bd5487-c432-4c22-ac5a-f459a9ebb126/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-sorted-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c1bd5487-c432-4c22-ac5a-f459a9ebb126/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c1bd5487-c432-4c22-ac5a-f459a9ebb126/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 3d1a973dcd7009ffcd2eda1338249f4d290fb62a ........................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 03:33:13,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:33:13,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:33:13,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:33:13,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:33:13,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:33:13,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:33:13,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:33:13,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:33:13,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:33:13,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:33:13,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:33:13,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:33:13,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:33:13,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:33:13,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:33:13,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:33:13,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:33:13,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:33:13,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:33:13,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:33:13,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:33:13,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:33:13,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:33:13,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:33:13,194 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:33:13,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:33:13,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:33:13,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:33:13,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:33:13,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:33:13,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:33:13,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:33:13,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:33:13,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:33:13,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:33:13,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:33:13,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:33:13,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:33:13,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:33:13,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:33:13,205 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c1bd5487-c432-4c22-ac5a-f459a9ebb126/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 03:33:13,231 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:33:13,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:33:13,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:33:13,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:33:13,244 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 03:33:13,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:33:13,244 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 03:33:13,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:33:13,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 03:33:13,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:33:13,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 03:33:13,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 03:33:13,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 03:33:13,246 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 03:33:13,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:33:13,246 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:33:13,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 03:33:13,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:33:13,247 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 03:33:13,247 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 03:33:13,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 03:33:13,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 03:33:13,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:33:13,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 03:33:13,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 03:33:13,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 03:33:13,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 03:33:13,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 03:33:13,251 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_c1bd5487-c432-4c22-ac5a-f459a9ebb126/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 -> 3d1a973dcd7009ffcd2eda1338249f4d290fb62a [2019-11-20 03:33:13,403 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:33:13,414 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:33:13,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:33:13,418 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:33:13,418 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:33:13,419 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c1bd5487-c432-4c22-ac5a-f459a9ebb126/bin/uautomizer/../../sv-benchmarks/c/forester-heap/dll-sorted-1.i [2019-11-20 03:33:13,484 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1bd5487-c432-4c22-ac5a-f459a9ebb126/bin/uautomizer/data/a8368aaa6/0c040baa5fa04a73aaaf8ad504b6a0c0/FLAG9509adf64 [2019-11-20 03:33:14,035 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:33:14,036 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c1bd5487-c432-4c22-ac5a-f459a9ebb126/sv-benchmarks/c/forester-heap/dll-sorted-1.i [2019-11-20 03:33:14,047 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1bd5487-c432-4c22-ac5a-f459a9ebb126/bin/uautomizer/data/a8368aaa6/0c040baa5fa04a73aaaf8ad504b6a0c0/FLAG9509adf64 [2019-11-20 03:33:14,376 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c1bd5487-c432-4c22-ac5a-f459a9ebb126/bin/uautomizer/data/a8368aaa6/0c040baa5fa04a73aaaf8ad504b6a0c0 [2019-11-20 03:33:14,378 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:33:14,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:33:14,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:33:14,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:33:14,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:33:14,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:33:14" (1/1) ... [2019-11-20 03:33:14,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b7c7a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:14, skipping insertion in model container [2019-11-20 03:33:14,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:33:14" (1/1) ... [2019-11-20 03:33:14,403 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:33:14,451 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:33:14,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:33:14,954 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:33:15,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:33:15,081 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:33:15,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:15 WrapperNode [2019-11-20 03:33:15,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:33:15,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:33:15,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:33:15,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:33:15,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:15" (1/1) ... [2019-11-20 03:33:15,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:15" (1/1) ... [2019-11-20 03:33:15,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:33:15,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:33:15,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:33:15,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:33:15,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:15" (1/1) ... [2019-11-20 03:33:15,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:15" (1/1) ... [2019-11-20 03:33:15,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:15" (1/1) ... [2019-11-20 03:33:15,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:15" (1/1) ... [2019-11-20 03:33:15,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:15" (1/1) ... [2019-11-20 03:33:15,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:15" (1/1) ... [2019-11-20 03:33:15,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:15" (1/1) ... [2019-11-20 03:33:15,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:33:15,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:33:15,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:33:15,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:33:15,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1bd5487-c432-4c22-ac5a-f459a9ebb126/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 03:33:15,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 03:33:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 03:33:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 03:33:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 03:33:15,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 03:33:15,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 03:33:15,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:33:15,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:33:15,774 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:33:15,774 INFO L285 CfgBuilder]: Removed 22 assume(true) statements. [2019-11-20 03:33:15,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:33:15 BoogieIcfgContainer [2019-11-20 03:33:15,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:33:15,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 03:33:15,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 03:33:15,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 03:33:15,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 03:33:14" (1/3) ... [2019-11-20 03:33:15,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1404b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:33:15, skipping insertion in model container [2019-11-20 03:33:15,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:15" (2/3) ... [2019-11-20 03:33:15,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1404b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:33:15, skipping insertion in model container [2019-11-20 03:33:15,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:33:15" (3/3) ... [2019-11-20 03:33:15,783 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-sorted-1.i [2019-11-20 03:33:15,792 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 03:33:15,798 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-20 03:33:15,807 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-20 03:33:15,830 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 03:33:15,830 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 03:33:15,830 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 03:33:15,830 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 03:33:15,830 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 03:33:15,831 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 03:33:15,831 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 03:33:15,831 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 03:33:15,845 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2019-11-20 03:33:15,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 03:33:15,851 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:33:15,851 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 03:33:15,852 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:33:15,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:33:15,856 INFO L82 PathProgramCache]: Analyzing trace with hash 890153286, now seen corresponding path program 1 times [2019-11-20 03:33:15,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:33:15,864 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724395415] [2019-11-20 03:33:15,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:33:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:33:15,987 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 03:33:15,987 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724395415] [2019-11-20 03:33:15,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:33:15,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 03:33:15,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286558011] [2019-11-20 03:33:15,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 03:33:15,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:33:16,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 03:33:16,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 03:33:16,006 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2019-11-20 03:33:16,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:33:16,028 INFO L93 Difference]: Finished difference Result 106 states and 172 transitions. [2019-11-20 03:33:16,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 03:33:16,030 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-11-20 03:33:16,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:33:16,040 INFO L225 Difference]: With dead ends: 106 [2019-11-20 03:33:16,040 INFO L226 Difference]: Without dead ends: 50 [2019-11-20 03:33:16,043 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 03:33:16,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-20 03:33:16,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2019-11-20 03:33:16,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-11-20 03:33:16,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2019-11-20 03:33:16,081 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 6 [2019-11-20 03:33:16,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:33:16,082 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2019-11-20 03:33:16,082 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 03:33:16,082 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2019-11-20 03:33:16,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 03:33:16,083 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:33:16,083 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:33:16,083 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:33:16,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:33:16,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1806859191, now seen corresponding path program 1 times [2019-11-20 03:33:16,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:33:16,084 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583302631] [2019-11-20 03:33:16,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:33:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:33:16,148 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 03:33:16,149 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583302631] [2019-11-20 03:33:16,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:33:16,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 03:33:16,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612885270] [2019-11-20 03:33:16,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 03:33:16,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:33:16,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 03:33:16,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:33:16,152 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 3 states. [2019-11-20 03:33:16,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:33:16,211 INFO L93 Difference]: Finished difference Result 103 states and 126 transitions. [2019-11-20 03:33:16,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 03:33:16,212 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-20 03:33:16,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:33:16,213 INFO L225 Difference]: With dead ends: 103 [2019-11-20 03:33:16,213 INFO L226 Difference]: Without dead ends: 55 [2019-11-20 03:33:16,215 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:33:16,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-11-20 03:33:16,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2019-11-20 03:33:16,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-20 03:33:16,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2019-11-20 03:33:16,223 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 7 [2019-11-20 03:33:16,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:33:16,224 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2019-11-20 03:33:16,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 03:33:16,224 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2019-11-20 03:33:16,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 03:33:16,225 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:33:16,225 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:33:16,225 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:33:16,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:33:16,226 INFO L82 PathProgramCache]: Analyzing trace with hash 443319948, now seen corresponding path program 1 times [2019-11-20 03:33:16,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:33:16,226 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302136596] [2019-11-20 03:33:16,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:33:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:33:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 03:33:16,314 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302136596] [2019-11-20 03:33:16,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:33:16,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 03:33:16,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377276551] [2019-11-20 03:33:16,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 03:33:16,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:33:16,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 03:33:16,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 03:33:16,316 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand 4 states. [2019-11-20 03:33:16,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:33:16,509 INFO L93 Difference]: Finished difference Result 87 states and 105 transitions. [2019-11-20 03:33:16,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 03:33:16,509 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-20 03:33:16,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:33:16,511 INFO L225 Difference]: With dead ends: 87 [2019-11-20 03:33:16,511 INFO L226 Difference]: Without dead ends: 85 [2019-11-20 03:33:16,512 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 03:33:16,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-11-20 03:33:16,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 52. [2019-11-20 03:33:16,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-20 03:33:16,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2019-11-20 03:33:16,520 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 63 transitions. Word has length 11 [2019-11-20 03:33:16,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:33:16,521 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 63 transitions. [2019-11-20 03:33:16,521 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 03:33:16,521 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2019-11-20 03:33:16,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 03:33:16,522 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:33:16,522 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:33:16,523 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:33:16,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:33:16,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1236050174, now seen corresponding path program 1 times [2019-11-20 03:33:16,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:33:16,523 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074942571] [2019-11-20 03:33:16,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:33:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:33:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:33:16,706 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:33:16,706 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 03:33:16,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 03:33:16 BoogieIcfgContainer [2019-11-20 03:33:16,740 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 03:33:16,741 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:33:16,741 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:33:16,741 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:33:16,742 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:33:15" (3/4) ... [2019-11-20 03:33:16,744 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 03:33:16,798 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c1bd5487-c432-4c22-ac5a-f459a9ebb126/bin/uautomizer/witness.graphml [2019-11-20 03:33:16,799 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:33:16,801 INFO L168 Benchmark]: Toolchain (without parser) took 2420.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 946.1 MB in the beginning and 1.0 GB in the end (delta: -81.6 MB). Peak memory consumption was 68.3 MB. Max. memory is 11.5 GB. [2019-11-20 03:33:16,801 INFO L168 Benchmark]: CDTParser took 0.18 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 03:33:16,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-11-20 03:33:16,802 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.06 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 03:33:16,802 INFO L168 Benchmark]: Boogie Preprocessor took 40.45 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 03:33:16,803 INFO L168 Benchmark]: RCFGBuilder took 597.27 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: 42.6 MB). Peak memory consumption was 42.6 MB. Max. memory is 11.5 GB. [2019-11-20 03:33:16,804 INFO L168 Benchmark]: TraceAbstraction took 963.50 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: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. [2019-11-20 03:33:16,804 INFO L168 Benchmark]: Witness Printer took 58.08 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 03:33:16,807 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 702.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.06 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 40.45 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 597.27 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: 42.6 MB). Peak memory consumption was 42.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 963.50 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: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. * Witness Printer took 58.08 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: - CounterExampleResult [Line: 1027]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L986] SLL* head = malloc(sizeof(SLL)); [L987] head->next = ((void*)0) [L988] head->prev = ((void*)0) [L989] head->data = 0 [L991] SLL* x = head; [L992] int marked = 0; [L995] COND TRUE __VERIFIER_nondet_int() || !marked [L998] x->next = malloc(sizeof(SLL)) [L999] EXPR x->next [L999] x->next->prev = x [L1000] EXPR x->next [L1000] x = x->next [L1001] x->next = ((void*)0) [L1003] COND TRUE __VERIFIER_nondet_int() [L1005] marked = 1 [L1008] COND TRUE \read(marked) [L1009] x->data = 1 [L995] COND FALSE !(__VERIFIER_nondet_int() || !marked) [L1014] x = head [L1016] COND FALSE !(!(((void*)0) != x)) [L1017] marked = 0 [L1019] EXPR x->next [L1019] x->next != ((void*)0) && x->next->data == 0 [L1019] EXPR x->next [L1019] EXPR x->next->data [L1019] x->next != ((void*)0) && x->next->data == 0 [L1019] COND FALSE !(x->next != ((void*)0) && x->next->data == 0) [L1024] EXPR x->next [L1024] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1024] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1024] COND TRUE x->next != ((void*)0) && __VERIFIER_nondet_int() [L1026] EXPR x->next [L1026] x = x->next [L1027] EXPR x->data [L1027] COND TRUE !(x->data != 1) [L1027] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 6 error locations. Result: UNSAFE, OverallTime: 0.9s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 156 SDslu, 51 SDs, 0 SdLazy, 50 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred 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, 34 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 425 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...