./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test_while_int_true-termination.c_false-unreach-call_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c324c7df-a16b-4f7f-aa72-d4644baab89d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c324c7df-a16b-4f7f-aa72-d4644baab89d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c324c7df-a16b-4f7f-aa72-d4644baab89d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c324c7df-a16b-4f7f-aa72-d4644baab89d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test_while_int_true-termination.c_false-unreach-call_1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c324c7df-a16b-4f7f-aa72-d4644baab89d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c324c7df-a16b-4f7f-aa72-d4644baab89d/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 87afddccfd1da763b81be9f487d95a8fd1750032 ........................................................................................................................................................................................................................................................................................................................................................ 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 0.1.23-635dfa2 [2018-12-09 12:04:51,190 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 12:04:51,190 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 12:04:51,196 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 12:04:51,197 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 12:04:51,197 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 12:04:51,198 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 12:04:51,199 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 12:04:51,200 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 12:04:51,200 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 12:04:51,201 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 12:04:51,201 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 12:04:51,201 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 12:04:51,202 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 12:04:51,202 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 12:04:51,203 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 12:04:51,203 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 12:04:51,204 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 12:04:51,205 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 12:04:51,206 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 12:04:51,206 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 12:04:51,207 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 12:04:51,208 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 12:04:51,208 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 12:04:51,209 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 12:04:51,209 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 12:04:51,210 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 12:04:51,210 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 12:04:51,210 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 12:04:51,211 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 12:04:51,211 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 12:04:51,212 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 12:04:51,212 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 12:04:51,212 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 12:04:51,212 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 12:04:51,213 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 12:04:51,213 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c324c7df-a16b-4f7f-aa72-d4644baab89d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 12:04:51,220 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 12:04:51,220 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 12:04:51,221 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 12:04:51,221 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 12:04:51,221 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 12:04:51,221 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 12:04:51,221 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 12:04:51,221 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 12:04:51,221 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 12:04:51,221 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 12:04:51,222 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 12:04:51,222 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 12:04:51,222 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 12:04:51,222 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 12:04:51,222 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 12:04:51,222 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 12:04:51,222 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 12:04:51,222 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 12:04:51,222 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 12:04:51,223 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 12:04:51,223 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 12:04:51,223 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 12:04:51,223 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 12:04:51,223 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 12:04:51,223 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 12:04:51,223 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 12:04:51,223 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 12:04:51,223 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 12:04:51,223 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 12:04:51,224 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 12:04:51,224 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 12:04:51,224 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 12:04:51,224 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 12:04:51,224 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 12:04:51,224 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 12:04:51,224 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 12:04:51,224 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c324c7df-a16b-4f7f-aa72-d4644baab89d/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87afddccfd1da763b81be9f487d95a8fd1750032 [2018-12-09 12:04:51,241 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 12:04:51,248 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 12:04:51,250 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 12:04:51,251 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 12:04:51,251 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 12:04:51,251 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c324c7df-a16b-4f7f-aa72-d4644baab89d/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/test_while_int_true-termination.c_false-unreach-call_1.i [2018-12-09 12:04:51,285 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c324c7df-a16b-4f7f-aa72-d4644baab89d/bin-2019/utaipan/data/f077fbdd9/ae685f13115a4fa39d4e8f2a4e1f4d59/FLAGda1fe5772 [2018-12-09 12:04:51,708 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 12:04:51,709 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c324c7df-a16b-4f7f-aa72-d4644baab89d/sv-benchmarks/c/ldv-regression/test_while_int_true-termination.c_false-unreach-call_1.i [2018-12-09 12:04:51,712 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c324c7df-a16b-4f7f-aa72-d4644baab89d/bin-2019/utaipan/data/f077fbdd9/ae685f13115a4fa39d4e8f2a4e1f4d59/FLAGda1fe5772 [2018-12-09 12:04:51,720 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c324c7df-a16b-4f7f-aa72-d4644baab89d/bin-2019/utaipan/data/f077fbdd9/ae685f13115a4fa39d4e8f2a4e1f4d59 [2018-12-09 12:04:51,721 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 12:04:51,722 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 12:04:51,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 12:04:51,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 12:04:51,725 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 12:04:51,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:04:51" (1/1) ... [2018-12-09 12:04:51,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2817da2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:04:51, skipping insertion in model container [2018-12-09 12:04:51,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:04:51" (1/1) ... [2018-12-09 12:04:51,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 12:04:51,739 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 12:04:51,819 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:04:51,822 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 12:04:51,830 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:04:51,837 INFO L195 MainTranslator]: Completed translation [2018-12-09 12:04:51,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:04:51 WrapperNode [2018-12-09 12:04:51,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 12:04:51,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 12:04:51,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 12:04:51,838 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 12:04:51,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:04:51" (1/1) ... [2018-12-09 12:04:51,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:04:51" (1/1) ... [2018-12-09 12:04:51,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 12:04:51,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 12:04:51,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 12:04:51,850 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 12:04:51,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:04:51" (1/1) ... [2018-12-09 12:04:51,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:04:51" (1/1) ... [2018-12-09 12:04:51,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:04:51" (1/1) ... [2018-12-09 12:04:51,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:04:51" (1/1) ... [2018-12-09 12:04:51,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:04:51" (1/1) ... [2018-12-09 12:04:51,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:04:51" (1/1) ... [2018-12-09 12:04:51,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:04:51" (1/1) ... [2018-12-09 12:04:51,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 12:04:51,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 12:04:51,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 12:04:51,862 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 12:04:51,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:04:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c324c7df-a16b-4f7f-aa72-d4644baab89d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 12:04:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 12:04:51,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 12:04:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-12-09 12:04:51,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-12-09 12:04:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 12:04:51,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 12:04:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 12:04:51,924 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 12:04:52,001 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 12:04:52,001 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 12:04:52,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:04:52 BoogieIcfgContainer [2018-12-09 12:04:52,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 12:04:52,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 12:04:52,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 12:04:52,004 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 12:04:52,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:04:51" (1/3) ... [2018-12-09 12:04:52,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d0768f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:04:52, skipping insertion in model container [2018-12-09 12:04:52,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:04:51" (2/3) ... [2018-12-09 12:04:52,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d0768f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:04:52, skipping insertion in model container [2018-12-09 12:04:52,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:04:52" (3/3) ... [2018-12-09 12:04:52,007 INFO L112 eAbstractionObserver]: Analyzing ICFG test_while_int_true-termination.c_false-unreach-call_1.i [2018-12-09 12:04:52,012 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 12:04:52,017 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 12:04:52,027 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 12:04:52,048 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 12:04:52,048 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 12:04:52,048 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 12:04:52,048 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 12:04:52,048 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 12:04:52,048 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 12:04:52,048 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 12:04:52,048 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 12:04:52,060 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-12-09 12:04:52,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 12:04:52,064 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:04:52,065 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:04:52,066 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 12:04:52,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:04:52,070 INFO L82 PathProgramCache]: Analyzing trace with hash 676687463, now seen corresponding path program 1 times [2018-12-09 12:04:52,071 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 12:04:52,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:04:52,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:04:52,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:04:52,101 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 12:04:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:04:52,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:04:52,174 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:04:52,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 12:04:52,174 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 12:04:52,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 12:04:52,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 12:04:52,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 12:04:52,191 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 4 states. [2018-12-09 12:04:52,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:04:52,221 INFO L93 Difference]: Finished difference Result 30 states and 40 transitions. [2018-12-09 12:04:52,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 12:04:52,223 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-12-09 12:04:52,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:04:52,227 INFO L225 Difference]: With dead ends: 30 [2018-12-09 12:04:52,227 INFO L226 Difference]: Without dead ends: 13 [2018-12-09 12:04:52,229 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 12:04:52,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-12-09 12:04:52,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2018-12-09 12:04:52,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-09 12:04:52,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-12-09 12:04:52,250 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2018-12-09 12:04:52,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:04:52,250 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-12-09 12:04:52,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 12:04:52,250 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-12-09 12:04:52,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 12:04:52,251 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:04:52,251 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:04:52,251 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 12:04:52,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:04:52,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1754257002, now seen corresponding path program 1 times [2018-12-09 12:04:52,252 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 12:04:52,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:04:52,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:04:52,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:04:52,253 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 12:04:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:04:52,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:04:52,283 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 12:04:52,283 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 12:04:52,284 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-12-09 12:04:52,285 INFO L205 CegarAbsIntRunner]: [0], [1], [7], [16], [19], [21], [29], [30], [31], [33] [2018-12-09 12:04:52,306 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 12:04:52,306 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 12:04:52,387 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 12:04:52,388 INFO L272 AbstractInterpreter]: Visited 10 different actions 17 times. Merged at 2 different actions 5 times. Never widened. Performed 39 root evaluator evaluations with a maximum evaluation depth of 3. Performed 39 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 2 variables. [2018-12-09 12:04:52,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:04:52,393 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 12:04:52,393 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 12:04:52,393 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c324c7df-a16b-4f7f-aa72-d4644baab89d/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 12:04:52,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:04:52,400 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 12:04:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:04:52,411 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:04:52,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:04:52,422 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 12:04:52,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:04:52,452 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 12:04:52,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2018-12-09 12:04:52,452 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 12:04:52,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 12:04:52,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 12:04:52,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-12-09 12:04:52,453 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2018-12-09 12:04:52,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:04:52,466 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-12-09 12:04:52,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 12:04:52,467 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-12-09 12:04:52,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:04:52,467 INFO L225 Difference]: With dead ends: 18 [2018-12-09 12:04:52,467 INFO L226 Difference]: Without dead ends: 15 [2018-12-09 12:04:52,468 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-12-09 12:04:52,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-09 12:04:52,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2018-12-09 12:04:52,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-09 12:04:52,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-12-09 12:04:52,470 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-12-09 12:04:52,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:04:52,470 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-12-09 12:04:52,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 12:04:52,470 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-12-09 12:04:52,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 12:04:52,471 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:04:52,471 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:04:52,471 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 12:04:52,471 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:04:52,471 INFO L82 PathProgramCache]: Analyzing trace with hash -2083501651, now seen corresponding path program 2 times [2018-12-09 12:04:52,471 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 12:04:52,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:04:52,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:04:52,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:04:52,472 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 12:04:52,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 12:04:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 12:04:52,488 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 12:04:52,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:04:52 BoogieIcfgContainer [2018-12-09 12:04:52,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 12:04:52,504 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 12:04:52,504 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 12:04:52,505 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 12:04:52,505 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:04:52" (3/4) ... [2018-12-09 12:04:52,506 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 12:04:52,529 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c324c7df-a16b-4f7f-aa72-d4644baab89d/bin-2019/utaipan/witness.graphml [2018-12-09 12:04:52,529 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 12:04:52,530 INFO L168 Benchmark]: Toolchain (without parser) took 808.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.0 MB). Free memory was 961.4 MB in the beginning and 992.8 MB in the end (delta: -31.5 MB). Peak memory consumption was 44.6 MB. Max. memory is 11.5 GB. [2018-12-09 12:04:52,530 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:04:52,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 115.16 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 12:04:52,531 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.44 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:04:52,531 INFO L168 Benchmark]: Boogie Preprocessor took 11.75 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:04:52,531 INFO L168 Benchmark]: RCFGBuilder took 140.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.0 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -104.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-12-09 12:04:52,531 INFO L168 Benchmark]: TraceAbstraction took 501.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 996.5 MB in the end (delta: 58.1 MB). Peak memory consumption was 58.1 MB. Max. memory is 11.5 GB. [2018-12-09 12:04:52,532 INFO L168 Benchmark]: Witness Printer took 24.77 ms. Allocated memory is still 1.1 GB. Free memory was 996.5 MB in the beginning and 992.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2018-12-09 12:04:52,533 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 115.16 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.44 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.75 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 140.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.0 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -104.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 501.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 996.5 MB in the end (delta: 58.1 MB). Peak memory consumption was 58.1 MB. Max. memory is 11.5 GB. * Witness Printer took 24.77 ms. Allocated memory is still 1.1 GB. Free memory was 996.5 MB in the beginning and 992.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] int i=0; VAL [i=0] [L13] COND TRUE i<5 [L14] i++ VAL [i=1] [L16] (i!=3) ? (0) : __blast_assert () VAL [i=1] [L13] COND TRUE i<5 [L14] i++ VAL [i=2] [L16] (i!=3) ? (0) : __blast_assert () VAL [i=2] [L13] COND TRUE i<5 [L14] i++ VAL [i=3] [L16] (i!=3) ? (0) : __blast_assert () VAL [i=3] [L16] CALL __blast_assert () [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 3 SDslu, 38 SDs, 0 SdLazy, 21 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 636 SizeOfPredicates, 1 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...