./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/test28_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9b562d86-dc27-45cd-a4bb-ba40bbde11d7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9b562d86-dc27-45cd-a4bb-ba40bbde11d7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9b562d86-dc27-45cd-a4bb-ba40bbde11d7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9b562d86-dc27-45cd-a4bb-ba40bbde11d7/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test28_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9b562d86-dc27-45cd-a4bb-ba40bbde11d7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9b562d86-dc27-45cd-a4bb-ba40bbde11d7/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash abfa11a491c166b78e1d0644316a3829704ada11 ..................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 21:53:42,852 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:53:42,854 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:53:42,868 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:53:42,868 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:53:42,869 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:53:42,870 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:53:42,871 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:53:42,873 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:53:42,873 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:53:42,874 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:53:42,874 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:53:42,875 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:53:42,876 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:53:42,877 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:53:42,878 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:53:42,878 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:53:42,880 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:53:42,881 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:53:42,883 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:53:42,884 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:53:42,885 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:53:42,887 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:53:42,887 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:53:42,887 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:53:42,888 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:53:42,889 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:53:42,890 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:53:42,890 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:53:42,891 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:53:42,891 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:53:42,892 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:53:42,892 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:53:42,892 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:53:42,893 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:53:42,893 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:53:42,894 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9b562d86-dc27-45cd-a4bb-ba40bbde11d7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 21:53:42,906 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:53:42,906 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:53:42,907 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:53:42,907 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 21:53:42,908 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 21:53:42,908 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 21:53:42,908 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 21:53:42,908 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:53:42,908 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 21:53:42,909 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:53:42,909 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 21:53:42,909 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:53:42,909 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:53:42,909 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:53:42,909 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:53:42,909 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 21:53:42,910 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:53:42,910 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:53:42,910 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:53:42,910 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:53:42,910 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:53:42,910 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:53:42,910 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:53:42,911 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:53:42,911 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:53:42,911 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:53:42,911 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 21:53:42,914 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:53:42,914 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:53:42,914 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_9b562d86-dc27-45cd-a4bb-ba40bbde11d7/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abfa11a491c166b78e1d0644316a3829704ada11 [2018-10-26 21:53:42,947 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:53:42,961 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:53:42,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:53:42,967 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:53:42,967 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:53:42,968 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9b562d86-dc27-45cd-a4bb-ba40bbde11d7/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/test28_true-unreach-call_true-termination.c [2018-10-26 21:53:43,018 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9b562d86-dc27-45cd-a4bb-ba40bbde11d7/bin-2019/uautomizer/data/3cecf58f3/3f49ab1bdac04ca69c62b6828e5a76ab/FLAGdca0b5b6c [2018-10-26 21:53:43,388 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:53:43,389 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9b562d86-dc27-45cd-a4bb-ba40bbde11d7/sv-benchmarks/c/ldv-regression/test28_true-unreach-call_true-termination.c [2018-10-26 21:53:43,393 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9b562d86-dc27-45cd-a4bb-ba40bbde11d7/bin-2019/uautomizer/data/3cecf58f3/3f49ab1bdac04ca69c62b6828e5a76ab/FLAGdca0b5b6c [2018-10-26 21:53:43,405 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9b562d86-dc27-45cd-a4bb-ba40bbde11d7/bin-2019/uautomizer/data/3cecf58f3/3f49ab1bdac04ca69c62b6828e5a76ab [2018-10-26 21:53:43,408 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:53:43,409 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 21:53:43,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:53:43,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:53:43,414 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:53:43,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:53:43" (1/1) ... [2018-10-26 21:53:43,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab5423c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:53:43, skipping insertion in model container [2018-10-26 21:53:43,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:53:43" (1/1) ... [2018-10-26 21:53:43,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:53:43,443 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:53:43,550 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:53:43,558 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:53:43,570 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:53:43,584 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:53:43,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:53:43 WrapperNode [2018-10-26 21:53:43,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:53:43,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:53:43,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:53:43,586 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:53:43,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:53:43" (1/1) ... [2018-10-26 21:53:43,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:53:43" (1/1) ... [2018-10-26 21:53:43,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:53:43" (1/1) ... [2018-10-26 21:53:43,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:53:43" (1/1) ... [2018-10-26 21:53:43,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:53:43" (1/1) ... [2018-10-26 21:53:43,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:53:43" (1/1) ... [2018-10-26 21:53:43,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:53:43" (1/1) ... [2018-10-26 21:53:43,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:53:43,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:53:43,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:53:43,614 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:53:43,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:53:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9b562d86-dc27-45cd-a4bb-ba40bbde11d7/bin-2019/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 [2018-10-26 21:53:43,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 21:53:43,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:53:43,723 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 21:53:43,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 21:53:43,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-10-26 21:53:43,723 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 21:53:43,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-26 21:53:43,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-26 21:53:43,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-26 21:53:43,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-26 21:53:43,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 21:53:43,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:53:43,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-10-26 21:53:44,199 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:53:44,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:53:44 BoogieIcfgContainer [2018-10-26 21:53:44,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:53:44,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:53:44,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:53:44,204 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:53:44,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:53:43" (1/3) ... [2018-10-26 21:53:44,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218f366c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:53:44, skipping insertion in model container [2018-10-26 21:53:44,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:53:43" (2/3) ... [2018-10-26 21:53:44,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218f366c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:53:44, skipping insertion in model container [2018-10-26 21:53:44,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:53:44" (3/3) ... [2018-10-26 21:53:44,208 INFO L112 eAbstractionObserver]: Analyzing ICFG test28_true-unreach-call_true-termination.c [2018-10-26 21:53:44,217 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:53:44,225 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 21:53:44,240 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 21:53:44,266 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 21:53:44,267 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:53:44,267 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:53:44,267 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:53:44,267 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:53:44,268 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:53:44,268 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:53:44,268 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:53:44,268 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:53:44,284 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-10-26 21:53:44,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 21:53:44,290 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:53:44,290 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:53:44,293 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:53:44,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:53:44,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1730472840, now seen corresponding path program 1 times [2018-10-26 21:53:44,300 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:53:44,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:53:44,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:53:44,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:53:44,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:53:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:53:44,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:53:44,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:53:44,488 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:53:44,491 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:53:44,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:53:44,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:53:44,505 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states. [2018-10-26 21:53:44,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:53:44,605 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2018-10-26 21:53:44,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:53:44,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-10-26 21:53:44,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:53:44,616 INFO L225 Difference]: With dead ends: 39 [2018-10-26 21:53:44,616 INFO L226 Difference]: Without dead ends: 20 [2018-10-26 21:53:44,619 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:53:44,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-10-26 21:53:44,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-10-26 21:53:44,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-10-26 21:53:44,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2018-10-26 21:53:44,648 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 16 [2018-10-26 21:53:44,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:53:44,648 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2018-10-26 21:53:44,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:53:44,649 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2018-10-26 21:53:44,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 21:53:44,649 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:53:44,649 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:53:44,650 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:53:44,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:53:44,650 INFO L82 PathProgramCache]: Analyzing trace with hash 828141669, now seen corresponding path program 1 times [2018-10-26 21:53:44,650 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:53:44,650 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:53:44,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:53:44,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:53:44,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:53:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:53:44,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:53:44,855 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:53:44,856 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 21:53:44,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 21:53:44,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 21:53:44,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 21:53:44,858 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 7 states. [2018-10-26 21:53:45,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:53:45,195 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2018-10-26 21:53:45,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 21:53:45,196 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-10-26 21:53:45,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:53:45,196 INFO L225 Difference]: With dead ends: 30 [2018-10-26 21:53:45,197 INFO L226 Difference]: Without dead ends: 19 [2018-10-26 21:53:45,198 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-26 21:53:45,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-10-26 21:53:45,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-10-26 21:53:45,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-10-26 21:53:45,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2018-10-26 21:53:45,201 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 18 [2018-10-26 21:53:45,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:53:45,201 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2018-10-26 21:53:45,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 21:53:45,202 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2018-10-26 21:53:45,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 21:53:45,202 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:53:45,202 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:53:45,203 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:53:45,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:53:45,203 INFO L82 PathProgramCache]: Analyzing trace with hash -263877885, now seen corresponding path program 1 times [2018-10-26 21:53:45,203 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:53:45,203 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:53:45,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:53:45,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:53:45,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:53:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:53:45,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:53:45,410 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:53:45,410 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-26 21:53:45,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 21:53:45,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 21:53:45,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-10-26 21:53:45,412 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 9 states. [2018-10-26 21:53:45,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:53:45,566 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2018-10-26 21:53:45,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 21:53:45,566 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-10-26 21:53:45,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:53:45,567 INFO L225 Difference]: With dead ends: 19 [2018-10-26 21:53:45,567 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 21:53:45,568 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-10-26 21:53:45,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 21:53:45,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 21:53:45,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 21:53:45,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 21:53:45,568 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-10-26 21:53:45,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:53:45,569 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 21:53:45,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 21:53:45,569 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 21:53:45,569 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 21:53:45,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 21:53:45,583 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 21:53:45,583 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 21:53:45,583 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:53:45,583 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:53:45,583 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 21:53:45,583 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 21:53:45,583 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 21:53:45,583 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 28) no Hoare annotation was computed. [2018-10-26 21:53:45,584 INFO L421 ceAbstractionStarter]: At program point L21(lines 11 28) the Hoare annotation is: false [2018-10-26 21:53:45,584 INFO L425 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2018-10-26 21:53:45,584 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 28) no Hoare annotation was computed. [2018-10-26 21:53:45,584 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) no Hoare annotation was computed. [2018-10-26 21:53:45,584 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 28) the Hoare annotation is: true [2018-10-26 21:53:45,584 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-10-26 21:53:45,584 INFO L425 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-10-26 21:53:45,584 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-10-26 21:53:45,584 INFO L425 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-10-26 21:53:45,584 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 15 19) no Hoare annotation was computed. [2018-10-26 21:53:45,585 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-10-26 21:53:45,585 INFO L425 ceAbstractionStarter]: For program point L20-4(lines 20 22) no Hoare annotation was computed. [2018-10-26 21:53:45,585 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-10-26 21:53:45,585 INFO L425 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2018-10-26 21:53:45,585 INFO L425 ceAbstractionStarter]: For program point L14-2(line 14) no Hoare annotation was computed. [2018-10-26 21:53:45,585 INFO L425 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2018-10-26 21:53:45,585 INFO L425 ceAbstractionStarter]: For program point L12-2(line 12) no Hoare annotation was computed. [2018-10-26 21:53:45,585 INFO L425 ceAbstractionStarter]: For program point L12-3(line 12) no Hoare annotation was computed. [2018-10-26 21:53:45,585 INFO L425 ceAbstractionStarter]: For program point L12-4(line 12) no Hoare annotation was computed. [2018-10-26 21:53:45,585 INFO L425 ceAbstractionStarter]: For program point L12-5(line 12) no Hoare annotation was computed. [2018-10-26 21:53:45,585 INFO L425 ceAbstractionStarter]: For program point L12-6(line 12) no Hoare annotation was computed. [2018-10-26 21:53:45,585 INFO L425 ceAbstractionStarter]: For program point L12-7(line 12) no Hoare annotation was computed. [2018-10-26 21:53:45,586 INFO L425 ceAbstractionStarter]: For program point L12-8(line 12) no Hoare annotation was computed. [2018-10-26 21:53:45,586 INFO L425 ceAbstractionStarter]: For program point L12-9(line 12) no Hoare annotation was computed. [2018-10-26 21:53:45,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 09:53:45 BoogieIcfgContainer [2018-10-26 21:53:45,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 21:53:45,591 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 21:53:45,592 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 21:53:45,592 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 21:53:45,592 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:53:44" (3/4) ... [2018-10-26 21:53:45,596 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 21:53:45,602 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 21:53:45,602 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 21:53:45,606 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-10-26 21:53:45,606 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-10-26 21:53:45,606 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 21:53:45,606 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 21:53:45,642 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9b562d86-dc27-45cd-a4bb-ba40bbde11d7/bin-2019/uautomizer/witness.graphml [2018-10-26 21:53:45,642 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 21:53:45,643 INFO L168 Benchmark]: Toolchain (without parser) took 2234.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 963.0 MB in the beginning and 1.1 GB in the end (delta: -92.6 MB). Peak memory consumption was 52.7 MB. Max. memory is 11.5 GB. [2018-10-26 21:53:45,644 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:53:45,644 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.11 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 951.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-10-26 21:53:45,644 INFO L168 Benchmark]: Boogie Preprocessor took 27.69 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 21:53:45,645 INFO L168 Benchmark]: RCFGBuilder took 586.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-10-26 21:53:45,645 INFO L168 Benchmark]: TraceAbstraction took 1390.78 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: 75.2 MB). Peak memory consumption was 75.2 MB. Max. memory is 11.5 GB. [2018-10-26 21:53:45,646 INFO L168 Benchmark]: Witness Printer took 50.83 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. [2018-10-26 21:53:45,648 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 175.11 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 951.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.69 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 586.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1390.78 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: 75.2 MB). Peak memory consumption was 75.2 MB. Max. memory is 11.5 GB. * Witness Printer took 50.83 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 32 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 49 SDtfs, 55 SDslu, 109 SDs, 0 SdLazy, 84 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 5 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 2161 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...