./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test_while_int.c_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d90666c-fac7-45a9-9f47-68140a043cd7/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d90666c-fac7-45a9-9f47-68140a043cd7/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d90666c-fac7-45a9-9f47-68140a043cd7/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d90666c-fac7-45a9-9f47-68140a043cd7/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test_while_int.c_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d90666c-fac7-45a9-9f47-68140a043cd7/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d90666c-fac7-45a9-9f47-68140a043cd7/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ca9b729f2ec82a71f4bbd71180c30ba5c27c5d4 ............................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:30:38,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:30:38,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:30:38,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:30:38,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:30:38,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:30:38,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:30:38,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:30:38,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:30:38,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:30:38,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:30:38,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:30:38,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:30:38,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:30:38,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:30:38,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:30:38,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:30:38,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:30:38,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:30:38,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:30:38,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:30:38,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:30:38,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:30:38,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:30:38,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:30:38,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:30:38,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:30:38,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:30:38,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:30:38,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:30:38,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:30:38,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:30:38,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:30:38,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:30:38,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:30:38,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:30:38,166 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:30:38,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:30:38,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:30:38,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:30:38,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:30:38,171 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d90666c-fac7-45a9-9f47-68140a043cd7/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:30:38,211 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:30:38,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:30:38,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:30:38,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:30:38,214 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:30:38,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:30:38,215 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:30:38,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:30:38,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:30:38,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:30:38,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:30:38,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:30:38,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:30:38,223 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:30:38,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:30:38,224 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:30:38,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:30:38,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:30:38,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:30:38,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:30:38,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:30:38,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:30:38,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:30:38,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:30:38,226 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:30:38,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:30:38,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:30:38,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:30:38,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d90666c-fac7-45a9-9f47-68140a043cd7/bin/uautomizer-Z5i5R5N3CC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d90666c-fac7-45a9-9f47-68140a043cd7/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ca9b729f2ec82a71f4bbd71180c30ba5c27c5d4 [2021-10-11 00:30:38,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:30:38,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:30:38,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:30:38,542 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:30:38,544 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:30:38,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d90666c-fac7-45a9-9f47-68140a043cd7/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/ldv-regression/test_while_int.c_1.i [2021-10-11 00:30:38,649 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d90666c-fac7-45a9-9f47-68140a043cd7/bin/uautomizer-Z5i5R5N3CC/data/51c652491/5751270f460246c09e5a1bed8644247a/FLAG2c38f5a34 [2021-10-11 00:30:39,182 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:30:39,183 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d90666c-fac7-45a9-9f47-68140a043cd7/sv-benchmarks/c/ldv-regression/test_while_int.c_1.i [2021-10-11 00:30:39,190 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d90666c-fac7-45a9-9f47-68140a043cd7/bin/uautomizer-Z5i5R5N3CC/data/51c652491/5751270f460246c09e5a1bed8644247a/FLAG2c38f5a34 [2021-10-11 00:30:39,582 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d90666c-fac7-45a9-9f47-68140a043cd7/bin/uautomizer-Z5i5R5N3CC/data/51c652491/5751270f460246c09e5a1bed8644247a [2021-10-11 00:30:39,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:30:39,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:30:39,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:30:39,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:30:39,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:30:39,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:30:39" (1/1) ... [2021-10-11 00:30:39,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bf6b353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:39, skipping insertion in model container [2021-10-11 00:30:39,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:30:39" (1/1) ... [2021-10-11 00:30:39,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:30:39,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:30:39,749 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d90666c-fac7-45a9-9f47-68140a043cd7/sv-benchmarks/c/ldv-regression/test_while_int.c_1.i[300,313] [2021-10-11 00:30:39,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:30:39,793 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:30:39,806 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d90666c-fac7-45a9-9f47-68140a043cd7/sv-benchmarks/c/ldv-regression/test_while_int.c_1.i[300,313] [2021-10-11 00:30:39,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:30:39,824 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:30:39,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:39 WrapperNode [2021-10-11 00:30:39,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:30:39,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:30:39,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:30:39,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:30:39,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:39" (1/1) ... [2021-10-11 00:30:39,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:39" (1/1) ... [2021-10-11 00:30:39,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:30:39,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:30:39,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:30:39,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:30:39,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:39" (1/1) ... [2021-10-11 00:30:39,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:39" (1/1) ... [2021-10-11 00:30:39,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:39" (1/1) ... [2021-10-11 00:30:39,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:39" (1/1) ... [2021-10-11 00:30:39,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:39" (1/1) ... [2021-10-11 00:30:39,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:39" (1/1) ... [2021-10-11 00:30:39,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:39" (1/1) ... [2021-10-11 00:30:39,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:30:39,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:30:39,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:30:39,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:30:39,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:39" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d90666c-fac7-45a9-9f47-68140a043cd7/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:30:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:30:39,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:30:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:30:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:30:40,111 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:30:40,112 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 00:30:40,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:40 BoogieIcfgContainer [2021-10-11 00:30:40,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:30:40,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:30:40,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:30:40,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:30:40,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:30:39" (1/3) ... [2021-10-11 00:30:40,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87524b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:30:40, skipping insertion in model container [2021-10-11 00:30:40,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:39" (2/3) ... [2021-10-11 00:30:40,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87524b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:30:40, skipping insertion in model container [2021-10-11 00:30:40,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:40" (3/3) ... [2021-10-11 00:30:40,122 INFO L111 eAbstractionObserver]: Analyzing ICFG test_while_int.c_1.i [2021-10-11 00:30:40,135 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:30:40,138 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:30:40,148 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:30:40,171 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:30:40,171 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:30:40,171 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:30:40,172 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:30:40,172 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:30:40,172 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:30:40,172 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:30:40,172 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:30:40,190 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2021-10-11 00:30:40,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 00:30:40,195 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:40,195 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 00:30:40,205 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:40,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:40,211 INFO L82 PathProgramCache]: Analyzing trace with hash 28699818, now seen corresponding path program 1 times [2021-10-11 00:30:40,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:40,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328720777] [2021-10-11 00:30:40,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:40,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:40,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328720777] [2021-10-11 00:30:40,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:40,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:30:40,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103231698] [2021-10-11 00:30:40,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:30:40,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:40,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:30:40,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:30:40,492 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2021-10-11 00:30:40,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:40,554 INFO L93 Difference]: Finished difference Result 21 states and 30 transitions. [2021-10-11 00:30:40,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:30:40,556 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2021-10-11 00:30:40,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:40,573 INFO L225 Difference]: With dead ends: 21 [2021-10-11 00:30:40,573 INFO L226 Difference]: Without dead ends: 9 [2021-10-11 00:30:40,576 INFO L677 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 [2021-10-11 00:30:40,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-11 00:30:40,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-10-11 00:30:40,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-11 00:30:40,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-10-11 00:30:40,614 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2021-10-11 00:30:40,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:40,614 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-10-11 00:30:40,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:30:40,615 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-10-11 00:30:40,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:30:40,616 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:40,616 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-10-11 00:30:40,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:30:40,617 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:40,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:40,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1810655527, now seen corresponding path program 1 times [2021-10-11 00:30:40,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:40,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372872053] [2021-10-11 00:30:40,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:40,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:40,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372872053] [2021-10-11 00:30:40,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496136818] [2021-10-11 00:30:40,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d90666c-fac7-45a9-9f47-68140a043cd7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:30:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:40,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:30:40,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:30:40,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:40,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:30:40,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-11 00:30:40,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527211684] [2021-10-11 00:30:40,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:30:40,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:40,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:30:40,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:30:40,870 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 6 states. [2021-10-11 00:30:40,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:40,891 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-10-11 00:30:40,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:30:40,892 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2021-10-11 00:30:40,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:40,893 INFO L225 Difference]: With dead ends: 13 [2021-10-11 00:30:40,893 INFO L226 Difference]: Without dead ends: 11 [2021-10-11 00:30:40,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:30:40,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-11 00:30:40,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-11 00:30:40,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-11 00:30:40,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-11 00:30:40,899 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2021-10-11 00:30:40,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:40,900 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-11 00:30:40,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:30:40,901 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-11 00:30:40,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 00:30:40,901 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:40,902 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2021-10-11 00:30:41,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 00:30:41,121 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:41,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:41,122 INFO L82 PathProgramCache]: Analyzing trace with hash 578140772, now seen corresponding path program 2 times [2021-10-11 00:30:41,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:41,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668554052] [2021-10-11 00:30:41,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:41,142 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:41,170 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:41,198 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:30:41,198 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:30:41,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:30:41,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:30:41 BoogieIcfgContainer [2021-10-11 00:30:41,223 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:30:41,224 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:30:41,224 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:30:41,224 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:30:41,225 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:40" (3/4) ... [2021-10-11 00:30:41,230 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:30:41,271 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d90666c-fac7-45a9-9f47-68140a043cd7/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:30:41,272 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:30:41,275 INFO L168 Benchmark]: Toolchain (without parser) took 1684.99 ms. Allocated memory was 96.5 MB in the beginning and 136.3 MB in the end (delta: 39.8 MB). Free memory was 63.9 MB in the beginning and 58.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 43.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:41,276 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 96.5 MB. Free memory was 52.3 MB in the beginning and 52.2 MB in the end (delta: 76.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:30:41,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.35 ms. Allocated memory was 96.5 MB in the beginning and 136.3 MB in the end (delta: 39.8 MB). Free memory was 63.6 MB in the beginning and 112.2 MB in the end (delta: -48.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:41,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.22 ms. Allocated memory is still 136.3 MB. Free memory was 112.2 MB in the beginning and 110.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:41,279 INFO L168 Benchmark]: Boogie Preprocessor took 19.09 ms. Allocated memory is still 136.3 MB. Free memory was 110.9 MB in the beginning and 109.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:30:41,285 INFO L168 Benchmark]: RCFGBuilder took 230.92 ms. Allocated memory is still 136.3 MB. Free memory was 109.5 MB in the beginning and 99.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:41,285 INFO L168 Benchmark]: TraceAbstraction took 1108.47 ms. Allocated memory is still 136.3 MB. Free memory was 99.0 MB in the beginning and 60.5 MB in the end (delta: 38.5 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:41,286 INFO L168 Benchmark]: Witness Printer took 47.87 ms. Allocated memory is still 136.3 MB. Free memory was 60.5 MB in the beginning and 58.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:41,294 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 96.5 MB. Free memory was 52.3 MB in the beginning and 52.2 MB in the end (delta: 76.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 235.35 ms. Allocated memory was 96.5 MB in the beginning and 136.3 MB in the end (delta: 39.8 MB). Free memory was 63.6 MB in the beginning and 112.2 MB in the end (delta: -48.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.22 ms. Allocated memory is still 136.3 MB. Free memory was 112.2 MB in the beginning and 110.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.09 ms. Allocated memory is still 136.3 MB. Free memory was 110.9 MB in the beginning and 109.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 230.92 ms. Allocated memory is still 136.3 MB. Free memory was 109.5 MB in the beginning and 99.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1108.47 ms. Allocated memory is still 136.3 MB. Free memory was 99.0 MB in the beginning and 60.5 MB in the end (delta: 38.5 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * Witness Printer took 47.87 ms. Allocated memory is still 136.3 MB. Free memory was 60.5 MB in the beginning and 58.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L14] int i=0; [L15] COND TRUE i<5 [L16] i++ [L18] (i!=3) ? (0) : __blast_assert () [L15] COND TRUE i<5 [L16] i++ [L18] (i!=3) ? (0) : __blast_assert () [L15] COND TRUE i<5 [L16] i++ [L18] (i!=3) ? (0) : __blast_assert () [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 3 SDslu, 11 SDs, 0 SdLazy, 19 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 43 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...