./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 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-sets/test_add-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0f26903d601d84bcfe738256ba3a8dbce35e2085 ...................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-30f4e4a [2019-11-27 23:55:36,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:55:36,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:55:36,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:55:36,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:55:36,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:55:36,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:55:36,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:55:36,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:55:36,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:55:36,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:55:36,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:55:36,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:55:37,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:55:37,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:55:37,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:55:37,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:55:37,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:55:37,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:55:37,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:55:37,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:55:37,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:55:37,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:55:37,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:55:37,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:55:37,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:55:37,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:55:37,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:55:37,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:55:37,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:55:37,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:55:37,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:55:37,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:55:37,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:55:37,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:55:37,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:55:37,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:55:37,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:55:37,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:55:37,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:55:37,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:55:37,048 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:55:37,067 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:55:37,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:55:37,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:55:37,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:55:37,069 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:55:37,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:55:37,070 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:55:37,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:55:37,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:55:37,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:55:37,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:55:37,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:55:37,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:55:37,072 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:55:37,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:55:37,073 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:55:37,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:55:37,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:55:37,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:55:37,074 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:55:37,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:55:37,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:55:37,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:55:37,075 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:55:37,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:55:37,076 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:55:37,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:55:37,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:55:37,076 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 0f26903d601d84bcfe738256ba3a8dbce35e2085 [2019-11-27 23:55:37,379 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:55:37,391 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:55:37,394 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:55:37,396 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:55:37,396 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:55:37,397 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-sets/test_add-1.i [2019-11-27 23:55:37,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/180ce1337/19d93adff9d249378b0b1e8b31b4806e/FLAGe77a1ccc5 [2019-11-27 23:55:38,049 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:55:38,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_add-1.i [2019-11-27 23:55:38,076 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/180ce1337/19d93adff9d249378b0b1e8b31b4806e/FLAGe77a1ccc5 [2019-11-27 23:55:38,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/180ce1337/19d93adff9d249378b0b1e8b31b4806e [2019-11-27 23:55:38,307 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:55:38,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:55:38,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:55:38,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:55:38,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:55:38,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:55:38" (1/1) ... [2019-11-27 23:55:38,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@170d6946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:55:38, skipping insertion in model container [2019-11-27 23:55:38,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:55:38" (1/1) ... [2019-11-27 23:55:38,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:55:38,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:55:38,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:55:38,851 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:55:38,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:55:38,998 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:55:38,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:55:38 WrapperNode [2019-11-27 23:55:38,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:55:39,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:55:39,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:55:39,001 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:55:39,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:55:38" (1/1) ... [2019-11-27 23:55:39,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:55:38" (1/1) ... [2019-11-27 23:55:39,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:55:39,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:55:39,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:55:39,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:55:39,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:55:38" (1/1) ... [2019-11-27 23:55:39,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:55:38" (1/1) ... [2019-11-27 23:55:39,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:55:38" (1/1) ... [2019-11-27 23:55:39,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:55:38" (1/1) ... [2019-11-27 23:55:39,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:55:38" (1/1) ... [2019-11-27 23:55:39,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:55:38" (1/1) ... [2019-11-27 23:55:39,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:55:38" (1/1) ... [2019-11-27 23:55:39,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:55:39,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:55:39,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:55:39,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:55:39,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:55:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-27 23:55:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 23:55:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 23:55:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-27 23:55:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-27 23:55:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:55:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-27 23:55:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-27 23:55:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:55:39,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:55:39,607 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:55:39,608 INFO L297 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-27 23:55:39,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:55:39 BoogieIcfgContainer [2019-11-27 23:55:39,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:55:39,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:55:39,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:55:39,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:55:39,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:55:38" (1/3) ... [2019-11-27 23:55:39,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a08bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:55:39, skipping insertion in model container [2019-11-27 23:55:39,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:55:38" (2/3) ... [2019-11-27 23:55:39,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a08bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:55:39, skipping insertion in model container [2019-11-27 23:55:39,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:55:39" (3/3) ... [2019-11-27 23:55:39,617 INFO L109 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2019-11-27 23:55:39,625 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:55:39,632 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:55:39,642 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:55:39,662 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:55:39,662 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:55:39,662 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:55:39,662 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:55:39,663 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:55:39,663 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:55:39,663 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:55:39,663 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:55:39,676 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-27 23:55:39,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 23:55:39,683 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:55:39,684 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:55:39,684 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:55:39,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:55:39,690 INFO L82 PathProgramCache]: Analyzing trace with hash -923442845, now seen corresponding path program 1 times [2019-11-27 23:55:39,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:55:39,697 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443245074] [2019-11-27 23:55:39,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:55:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:55:39,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:55:39,857 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443245074] [2019-11-27 23:55:39,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:55:39,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 23:55:39,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841345011] [2019-11-27 23:55:39,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:55:39,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:55:39,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:55:39,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:55:39,878 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2019-11-27 23:55:39,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:55:39,895 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2019-11-27 23:55:39,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:55:39,897 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-27 23:55:39,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:55:39,905 INFO L225 Difference]: With dead ends: 41 [2019-11-27 23:55:39,906 INFO L226 Difference]: Without dead ends: 19 [2019-11-27 23:55:39,909 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 [2019-11-27 23:55:39,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-27 23:55:39,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-27 23:55:39,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-27 23:55:39,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2019-11-27 23:55:39,941 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2019-11-27 23:55:39,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:55:39,941 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2019-11-27 23:55:39,941 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:55:39,941 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2019-11-27 23:55:39,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 23:55:39,942 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:55:39,942 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:55:39,942 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:55:39,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:55:39,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1228046979, now seen corresponding path program 1 times [2019-11-27 23:55:39,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:55:39,943 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037146728] [2019-11-27 23:55:39,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:55:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:55:40,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:55:40,039 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037146728] [2019-11-27 23:55:40,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:55:40,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-27 23:55:40,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115959766] [2019-11-27 23:55:40,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 23:55:40,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:55:40,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 23:55:40,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:55:40,043 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand 4 states. [2019-11-27 23:55:40,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:55:40,108 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2019-11-27 23:55:40,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 23:55:40,109 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-27 23:55:40,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:55:40,110 INFO L225 Difference]: With dead ends: 37 [2019-11-27 23:55:40,110 INFO L226 Difference]: Without dead ends: 28 [2019-11-27 23:55:40,111 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 [2019-11-27 23:55:40,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-27 23:55:40,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 21. [2019-11-27 23:55:40,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-27 23:55:40,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-11-27 23:55:40,118 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 12 [2019-11-27 23:55:40,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:55:40,118 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-11-27 23:55:40,119 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 23:55:40,119 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-11-27 23:55:40,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 23:55:40,120 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:55:40,120 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:55:40,120 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:55:40,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:55:40,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1885213511, now seen corresponding path program 1 times [2019-11-27 23:55:40,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:55:40,121 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756818760] [2019-11-27 23:55:40,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:55:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:55:40,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:55:40,182 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756818760] [2019-11-27 23:55:40,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:55:40,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-27 23:55:40,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972110567] [2019-11-27 23:55:40,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 23:55:40,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:55:40,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 23:55:40,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:55:40,185 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 4 states. [2019-11-27 23:55:40,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:55:40,246 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-11-27 23:55:40,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 23:55:40,248 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-27 23:55:40,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:55:40,249 INFO L225 Difference]: With dead ends: 28 [2019-11-27 23:55:40,249 INFO L226 Difference]: Without dead ends: 23 [2019-11-27 23:55:40,250 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 [2019-11-27 23:55:40,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-27 23:55:40,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2019-11-27 23:55:40,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-27 23:55:40,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2019-11-27 23:55:40,265 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 12 [2019-11-27 23:55:40,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:55:40,265 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2019-11-27 23:55:40,266 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 23:55:40,266 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2019-11-27 23:55:40,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 23:55:40,267 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:55:40,268 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:55:40,268 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:55:40,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:55:40,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1883604797, now seen corresponding path program 1 times [2019-11-27 23:55:40,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:55:40,270 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587061752] [2019-11-27 23:55:40,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:55:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:55:40,522 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 17 [2019-11-27 23:55:40,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:55:40,527 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587061752] [2019-11-27 23:55:40,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:55:40,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 23:55:40,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301410767] [2019-11-27 23:55:40,529 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 23:55:40,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:55:40,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 23:55:40,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:55:40,532 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 4 states. [2019-11-27 23:55:40,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:55:40,616 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2019-11-27 23:55:40,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 23:55:40,616 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-27 23:55:40,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:55:40,617 INFO L225 Difference]: With dead ends: 34 [2019-11-27 23:55:40,617 INFO L226 Difference]: Without dead ends: 16 [2019-11-27 23:55:40,618 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-27 23:55:40,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-27 23:55:40,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-27 23:55:40,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-27 23:55:40,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-11-27 23:55:40,623 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 12 [2019-11-27 23:55:40,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:55:40,623 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-11-27 23:55:40,623 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 23:55:40,624 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-11-27 23:55:40,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-27 23:55:40,624 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:55:40,624 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:55:40,625 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:55:40,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:55:40,625 INFO L82 PathProgramCache]: Analyzing trace with hash 2055661832, now seen corresponding path program 1 times [2019-11-27 23:55:40,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:55:40,626 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355650974] [2019-11-27 23:55:40,626 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:55:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:55:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:55:40,798 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:55:40,799 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:55:40,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:55:40 BoogieIcfgContainer [2019-11-27 23:55:40,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:55:40,859 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:55:40,860 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:55:40,860 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:55:40,861 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:55:39" (3/4) ... [2019-11-27 23:55:40,863 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-27 23:55:40,940 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:55:40,940 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:55:40,942 INFO L168 Benchmark]: Toolchain (without parser) took 2633.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 959.0 MB in the beginning and 1.0 GB in the end (delta: -48.9 MB). Peak memory consumption was 89.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:55:40,943 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:55:40,944 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -159.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:55:40,944 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.62 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. [2019-11-27 23:55:40,945 INFO L168 Benchmark]: Boogie Preprocessor took 35.70 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:55:40,945 INFO L168 Benchmark]: RCFGBuilder took 512.92 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: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:55:40,946 INFO L168 Benchmark]: TraceAbstraction took 1248.08 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: 66.9 MB). Peak memory consumption was 66.9 MB. Max. memory is 11.5 GB. [2019-11-27 23:55:40,947 INFO L168 Benchmark]: Witness Printer took 81.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:55:40,950 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 686.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -159.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.62 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 35.70 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 512.92 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: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1248.08 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: 66.9 MB). Peak memory consumption was 66.9 MB. Max. memory is 11.5 GB. * Witness Printer took 81.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 653]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L648] struct ldv_list_head s1 = { &(s1), &(s1) }; VAL [s1={7:0}] [L651] int j = __VERIFIER_nondet_int(); [L637] struct ldv_list_element *m; [L638] EXPR (s)->next [L638] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L638] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [s1={7:0}] [L638] COND FALSE !(&m->list != (s)) VAL [s1={7:0}] [L643] return 0; VAL [s1={7:0}] [L619] COND TRUE !ldv_is_in_set(new, s) [L620] struct ldv_list_element *le; [L562] void *ptr = malloc(size); [L564] return ptr; VAL [s1={7:0}] [L621] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L622] le->e = new [L591] head->next [L579] next->prev = new [L580] new->next = next [L581] new->prev = prev [L582] prev->next = new VAL [s1={7:0}] [L637] struct ldv_list_element *m; [L638] EXPR (s)->next [L638] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L638] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [s1={7:0}] [L638] COND TRUE &m->list != (s) [L639] EXPR m->e VAL [s1={7:0}] [L639] COND TRUE m->e == e [L640] return 1; VAL [s1={7:0}] [L653] COND TRUE ldv_is_in_set(j, &s1) [L653] __VERIFIER_error() VAL [s1={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. Result: UNSAFE, OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 82 SDtfs, 21 SDslu, 81 SDs, 0 SdLazy, 39 SolverSat, 4 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, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 946 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...