./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_add-1.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_caa5065d-cef3-4216-92d6-5f5068e5f24f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_caa5065d-cef3-4216-92d6-5f5068e5f24f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_caa5065d-cef3-4216-92d6-5f5068e5f24f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_caa5065d-cef3-4216-92d6-5f5068e5f24f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_add-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_caa5065d-cef3-4216-92d6-5f5068e5f24f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_caa5065d-cef3-4216-92d6-5f5068e5f24f/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77902a9f57c297a8e1fc2f1cd5cfc51f597104fb ....................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-28 02:58:14,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:58:14,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:58:15,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:58:15,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:58:15,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:58:15,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:58:15,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:58:15,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:58:15,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:58:15,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:58:15,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:58:15,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:58:15,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:58:15,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:58:15,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:58:15,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:58:15,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:58:15,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:58:15,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:58:15,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:58:15,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:58:15,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:58:15,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:58:15,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:58:15,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:58:15,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:58:15,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:58:15,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:58:15,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:58:15,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:58:15,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:58:15,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:58:15,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:58:15,073 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:58:15,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:58:15,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:58:15,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:58:15,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:58:15,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:58:15,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:58:15,086 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_caa5065d-cef3-4216-92d6-5f5068e5f24f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:58:15,116 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:58:15,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:58:15,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:58:15,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:58:15,118 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:58:15,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:58:15,118 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:58:15,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:58:15,119 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:58:15,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:58:15,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:58:15,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:58:15,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:58:15,120 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:58:15,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:58:15,120 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:58:15,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:58:15,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:58:15,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:58:15,121 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:58:15,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:58:15,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:58:15,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:58:15,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:58:15,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:58:15,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:58:15,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:58:15,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:58:15,123 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:58:15,123 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_caa5065d-cef3-4216-92d6-5f5068e5f24f/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_caa5065d-cef3-4216-92d6-5f5068e5f24f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77902a9f57c297a8e1fc2f1cd5cfc51f597104fb [2020-11-28 02:58:15,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:58:15,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:58:15,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:58:15,425 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:58:15,427 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:58:15,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_caa5065d-cef3-4216-92d6-5f5068e5f24f/bin/uautomizer/../../sv-benchmarks/c/ldv-sets/test_add-1.i [2020-11-28 02:58:15,522 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_caa5065d-cef3-4216-92d6-5f5068e5f24f/bin/uautomizer/data/10eb16e95/b04299ff47dd448aa4ce0d12f9e5a9a6/FLAG2dfb2427e [2020-11-28 02:58:16,045 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:58:16,046 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_caa5065d-cef3-4216-92d6-5f5068e5f24f/sv-benchmarks/c/ldv-sets/test_add-1.i [2020-11-28 02:58:16,073 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_caa5065d-cef3-4216-92d6-5f5068e5f24f/bin/uautomizer/data/10eb16e95/b04299ff47dd448aa4ce0d12f9e5a9a6/FLAG2dfb2427e [2020-11-28 02:58:16,353 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_caa5065d-cef3-4216-92d6-5f5068e5f24f/bin/uautomizer/data/10eb16e95/b04299ff47dd448aa4ce0d12f9e5a9a6 [2020-11-28 02:58:16,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:58:16,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:58:16,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:58:16,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:58:16,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:58:16,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:58:16" (1/1) ... [2020-11-28 02:58:16,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a02a992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:16, skipping insertion in model container [2020-11-28 02:58:16,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:58:16" (1/1) ... [2020-11-28 02:58:16,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:58:16,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:58:16,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:58:16,855 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:58:16,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:58:16,964 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:58:16,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:16 WrapperNode [2020-11-28 02:58:16,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:58:16,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:58:16,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:58:16,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:58:16,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:16" (1/1) ... [2020-11-28 02:58:16,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:16" (1/1) ... [2020-11-28 02:58:17,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:58:17,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:58:17,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:58:17,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:58:17,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:16" (1/1) ... [2020-11-28 02:58:17,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:16" (1/1) ... [2020-11-28 02:58:17,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:16" (1/1) ... [2020-11-28 02:58:17,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:16" (1/1) ... [2020-11-28 02:58:17,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:16" (1/1) ... [2020-11-28 02:58:17,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:16" (1/1) ... [2020-11-28 02:58:17,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:16" (1/1) ... [2020-11-28 02:58:17,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:58:17,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:58:17,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:58:17,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:58:17,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_caa5065d-cef3-4216-92d6-5f5068e5f24f/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 [2020-11-28 02:58:17,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 02:58:17,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 02:58:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 02:58:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 02:58:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:58:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 02:58:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-28 02:58:17,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:58:17,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:58:17,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:58:17,646 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:58:17,647 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-28 02:58:17,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:58:17 BoogieIcfgContainer [2020-11-28 02:58:17,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:58:17,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:58:17,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:58:17,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:58:17,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:58:16" (1/3) ... [2020-11-28 02:58:17,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336050a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:58:17, skipping insertion in model container [2020-11-28 02:58:17,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:16" (2/3) ... [2020-11-28 02:58:17,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336050a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:58:17, skipping insertion in model container [2020-11-28 02:58:17,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:58:17" (3/3) ... [2020-11-28 02:58:17,658 INFO L111 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2020-11-28 02:58:17,670 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:58:17,675 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 02:58:17,692 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 02:58:17,733 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:58:17,733 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:58:17,733 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:58:17,733 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:58:17,734 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:58:17,734 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:58:17,734 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:58:17,734 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:58:17,751 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-11-28 02:58:17,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 02:58:17,757 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:58:17,758 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:17,758 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:58:17,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:17,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1732431771, now seen corresponding path program 1 times [2020-11-28 02:58:17,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:17,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928078099] [2020-11-28 02:58:17,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:17,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:17,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928078099] [2020-11-28 02:58:17,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:58:17,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:58:17,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349019246] [2020-11-28 02:58:17,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 02:58:17,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:17,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 02:58:17,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 02:58:17,978 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2020-11-28 02:58:17,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:17,994 INFO L93 Difference]: Finished difference Result 48 states and 63 transitions. [2020-11-28 02:58:17,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 02:58:17,996 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-11-28 02:58:17,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:58:18,003 INFO L225 Difference]: With dead ends: 48 [2020-11-28 02:58:18,003 INFO L226 Difference]: Without dead ends: 22 [2020-11-28 02:58:18,006 INFO L677 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 [2020-11-28 02:58:18,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-28 02:58:18,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-28 02:58:18,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-28 02:58:18,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2020-11-28 02:58:18,041 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 13 [2020-11-28 02:58:18,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:58:18,042 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2020-11-28 02:58:18,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 02:58:18,042 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2020-11-28 02:58:18,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 02:58:18,043 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:58:18,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:18,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:58:18,044 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:58:18,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:18,047 INFO L82 PathProgramCache]: Analyzing trace with hash 854163994, now seen corresponding path program 1 times [2020-11-28 02:58:18,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:18,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845226653] [2020-11-28 02:58:18,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:18,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:18,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845226653] [2020-11-28 02:58:18,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:58:18,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:58:18,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349000858] [2020-11-28 02:58:18,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:58:18,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:18,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:58:18,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:58:18,200 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 4 states. [2020-11-28 02:58:18,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:18,263 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2020-11-28 02:58:18,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:58:18,267 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-28 02:58:18,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:58:18,268 INFO L225 Difference]: With dead ends: 44 [2020-11-28 02:58:18,268 INFO L226 Difference]: Without dead ends: 34 [2020-11-28 02:58:18,269 INFO L677 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 [2020-11-28 02:58:18,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-28 02:58:18,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 24. [2020-11-28 02:58:18,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-28 02:58:18,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2020-11-28 02:58:18,275 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 13 [2020-11-28 02:58:18,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:58:18,275 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2020-11-28 02:58:18,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:58:18,276 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-11-28 02:58:18,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 02:58:18,276 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:58:18,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:18,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 02:58:18,277 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:58:18,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:18,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1167630684, now seen corresponding path program 1 times [2020-11-28 02:58:18,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:18,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585775964] [2020-11-28 02:58:18,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:18,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:18,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585775964] [2020-11-28 02:58:18,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:58:18,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:58:18,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40618539] [2020-11-28 02:58:18,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:58:18,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:18,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:58:18,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:58:18,375 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 4 states. [2020-11-28 02:58:18,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:18,428 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2020-11-28 02:58:18,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:58:18,430 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-28 02:58:18,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:58:18,430 INFO L225 Difference]: With dead ends: 34 [2020-11-28 02:58:18,431 INFO L226 Difference]: Without dead ends: 28 [2020-11-28 02:58:18,431 INFO L677 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 [2020-11-28 02:58:18,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-28 02:58:18,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2020-11-28 02:58:18,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-28 02:58:18,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2020-11-28 02:58:18,436 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 13 [2020-11-28 02:58:18,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:58:18,436 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2020-11-28 02:58:18,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:58:18,437 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2020-11-28 02:58:18,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 02:58:18,451 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:58:18,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:18,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 02:58:18,451 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:58:18,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:18,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1117760550, now seen corresponding path program 1 times [2020-11-28 02:58:18,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:18,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858202716] [2020-11-28 02:58:18,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:18,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:18,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858202716] [2020-11-28 02:58:18,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:58:18,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:58:18,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002055798] [2020-11-28 02:58:18,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:58:18,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:18,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:58:18,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:58:18,557 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 4 states. [2020-11-28 02:58:18,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:18,643 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2020-11-28 02:58:18,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:58:18,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-28 02:58:18,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:58:18,645 INFO L225 Difference]: With dead ends: 40 [2020-11-28 02:58:18,645 INFO L226 Difference]: Without dead ends: 19 [2020-11-28 02:58:18,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:58:18,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-28 02:58:18,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-28 02:58:18,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-28 02:58:18,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-11-28 02:58:18,651 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 13 [2020-11-28 02:58:18,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:58:18,651 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-11-28 02:58:18,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:58:18,652 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-11-28 02:58:18,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 02:58:18,652 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:58:18,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:18,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 02:58:18,653 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:58:18,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:18,654 INFO L82 PathProgramCache]: Analyzing trace with hash -406632358, now seen corresponding path program 1 times [2020-11-28 02:58:18,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:18,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915792388] [2020-11-28 02:58:18,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:18,726 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:18,863 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:18,916 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:18,917 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 02:58:18,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 02:58:18,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:58:18 BoogieIcfgContainer [2020-11-28 02:58:18,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:58:18,979 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:58:18,979 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:58:18,979 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:58:18,980 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:58:17" (3/4) ... [2020-11-28 02:58:18,982 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 02:58:19,030 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_caa5065d-cef3-4216-92d6-5f5068e5f24f/bin/uautomizer/witness.graphml [2020-11-28 02:58:19,030 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:58:19,033 INFO L168 Benchmark]: Toolchain (without parser) took 2672.06 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 62.2 MB in the beginning and 62.1 MB in the end (delta: 126.0 kB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:19,033 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 94.4 MB. Free memory was 53.5 MB in the beginning and 53.5 MB in the end (delta: 34.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:58:19,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 602.18 ms. Allocated memory is still 94.4 MB. Free memory was 62.0 MB in the beginning and 56.2 MB in the end (delta: 5.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:19,034 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.02 ms. Allocated memory is still 94.4 MB. Free memory was 56.2 MB in the beginning and 54.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:19,035 INFO L168 Benchmark]: Boogie Preprocessor took 50.46 ms. Allocated memory is still 94.4 MB. Free memory was 54.1 MB in the beginning and 52.4 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:58:19,036 INFO L168 Benchmark]: RCFGBuilder took 578.80 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 52.4 MB in the beginning and 85.8 MB in the end (delta: -33.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:19,036 INFO L168 Benchmark]: TraceAbstraction took 1328.12 ms. Allocated memory is still 113.2 MB. Free memory was 85.2 MB in the beginning and 66.3 MB in the end (delta: 18.9 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:19,037 INFO L168 Benchmark]: Witness Printer took 51.39 ms. Allocated memory is still 113.2 MB. Free memory was 66.3 MB in the beginning and 62.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:19,040 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 94.4 MB. Free memory was 53.5 MB in the beginning and 53.5 MB in the end (delta: 34.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 602.18 ms. Allocated memory is still 94.4 MB. Free memory was 62.0 MB in the beginning and 56.2 MB in the end (delta: 5.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.02 ms. Allocated memory is still 94.4 MB. Free memory was 56.2 MB in the beginning and 54.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.46 ms. Allocated memory is still 94.4 MB. Free memory was 54.1 MB in the beginning and 52.4 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 578.80 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 52.4 MB in the beginning and 85.8 MB in the end (delta: -33.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1328.12 ms. Allocated memory is still 113.2 MB. Free memory was 85.2 MB in the beginning and 66.3 MB in the end (delta: 18.9 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. * Witness Printer took 51.39 ms. Allocated memory is still 113.2 MB. Free memory was 66.3 MB in the beginning and 62.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 562]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L662] struct ldv_list_head s1 = { &(s1), &(s1) }; VAL [s1={6:0}] [L665] int j = __VERIFIER_nondet_int(); [L651] struct ldv_list_element *m; [L652] EXPR (s)->next [L652] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L652] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [s1={6:0}] [L652] COND FALSE !(&m->list != (s)) VAL [s1={6:0}] [L657] return 0; VAL [s1={6:0}] [L633] COND TRUE !ldv_is_in_set(new, s) [L634] struct ldv_list_element *le; [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [s1={6:0}] [L578] return ptr; VAL [s1={6:0}] [L635] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L636] le->e = new [L605] head->next [L593] next->prev = new [L594] new->next = next [L595] new->prev = prev [L596] prev->next = new VAL [s1={6:0}] [L651] struct ldv_list_element *m; [L652] EXPR (s)->next [L652] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L652] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [s1={6:0}] [L652] COND TRUE &m->list != (s) [L653] EXPR m->e VAL [s1={6:0}] [L653] COND TRUE m->e == e [L654] return 1; VAL [s1={6:0}] [L667] COND TRUE ldv_is_in_set(j, &s1) [L562] COND FALSE !(0) VAL [s1={6:0}] [L562] __assert_fail ("0", "model/ldv.h", 3, __extension__ __PRETTY_FUNCTION__) VAL [s1={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 28 SDslu, 96 SDs, 0 SdLazy, 37 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 4 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1776 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...