./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test29-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0bf5c6f6-c2e7-4ea2-a883-988aa6d5af2a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0bf5c6f6-c2e7-4ea2-a883-988aa6d5af2a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0bf5c6f6-c2e7-4ea2-a883-988aa6d5af2a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0bf5c6f6-c2e7-4ea2-a883-988aa6d5af2a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test29-1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0bf5c6f6-c2e7-4ea2-a883-988aa6d5af2a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0bf5c6f6-c2e7-4ea2-a883-988aa6d5af2a/bin/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 2aa6c4430411ceeb023b25a4c3a2c7228d94ed35 ........................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:02:09,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:09,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:09,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:09,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:09,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:09,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:09,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:09,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:09,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:09,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:09,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:09,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:09,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:09,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:09,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:09,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:09,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:09,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:09,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:09,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:09,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:09,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:09,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:09,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:09,329 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:09,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:09,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:09,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:09,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:09,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:09,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:09,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:09,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:09,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:09,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:09,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:09,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:09,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:09,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:09,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:09,340 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0bf5c6f6-c2e7-4ea2-a883-988aa6d5af2a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:02:09,349 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:09,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:09,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:09,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:09,350 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:09,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:09,351 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:09,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:09,351 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:09,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:09,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:02:09,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:02:09,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:02:09,352 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:09,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:09,352 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:09,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:02:09,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:09,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:09,353 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:02:09,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:02:09,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:09,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:09,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:02:09,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:02:09,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:09,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:02:09,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:02:09,360 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_0bf5c6f6-c2e7-4ea2-a883-988aa6d5af2a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__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 -> 2aa6c4430411ceeb023b25a4c3a2c7228d94ed35 [2019-10-22 09:02:09,389 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:09,400 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:09,403 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:09,404 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:09,404 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:09,405 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0bf5c6f6-c2e7-4ea2-a883-988aa6d5af2a/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/test29-1.c [2019-10-22 09:02:09,450 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0bf5c6f6-c2e7-4ea2-a883-988aa6d5af2a/bin/uautomizer/data/6ddf40cdd/cd0a357578d74f39bfd2ce1c1de9cfa7/FLAGfb0eeef1d [2019-10-22 09:02:09,842 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:09,843 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0bf5c6f6-c2e7-4ea2-a883-988aa6d5af2a/sv-benchmarks/c/ldv-regression/test29-1.c [2019-10-22 09:02:09,848 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0bf5c6f6-c2e7-4ea2-a883-988aa6d5af2a/bin/uautomizer/data/6ddf40cdd/cd0a357578d74f39bfd2ce1c1de9cfa7/FLAGfb0eeef1d [2019-10-22 09:02:09,863 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0bf5c6f6-c2e7-4ea2-a883-988aa6d5af2a/bin/uautomizer/data/6ddf40cdd/cd0a357578d74f39bfd2ce1c1de9cfa7 [2019-10-22 09:02:09,866 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:09,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:09,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:09,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:09,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:09,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:09" (1/1) ... [2019-10-22 09:02:09,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@756979c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:09, skipping insertion in model container [2019-10-22 09:02:09,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:09" (1/1) ... [2019-10-22 09:02:09,883 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:09,901 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:10,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:10,137 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:10,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:10,173 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:10,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:10 WrapperNode [2019-10-22 09:02:10,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:10,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:10,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:10,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:10,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:10" (1/1) ... [2019-10-22 09:02:10,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:10" (1/1) ... [2019-10-22 09:02:10,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:10,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:10,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:10,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:10,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:10" (1/1) ... [2019-10-22 09:02:10,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:10" (1/1) ... [2019-10-22 09:02:10,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:10" (1/1) ... [2019-10-22 09:02:10,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:10" (1/1) ... [2019-10-22 09:02:10,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:10" (1/1) ... [2019-10-22 09:02:10,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:10" (1/1) ... [2019-10-22 09:02:10,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:10" (1/1) ... [2019-10-22 09:02:10,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:10,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:10,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:10,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:10,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0bf5c6f6-c2e7-4ea2-a883-988aa6d5af2a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:02:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:10,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:02:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:02:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:02:10,445 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:10,445 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 09:02:10,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:10 BoogieIcfgContainer [2019-10-22 09:02:10,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:10,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:02:10,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:02:10,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:02:10,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:02:09" (1/3) ... [2019-10-22 09:02:10,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7a3df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:10, skipping insertion in model container [2019-10-22 09:02:10,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:10" (2/3) ... [2019-10-22 09:02:10,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7a3df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:10, skipping insertion in model container [2019-10-22 09:02:10,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:10" (3/3) ... [2019-10-22 09:02:10,456 INFO L109 eAbstractionObserver]: Analyzing ICFG test29-1.c [2019-10-22 09:02:10,464 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:02:10,470 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:02:10,479 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:02:10,498 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:02:10,504 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:02:10,504 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:02:10,504 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:10,505 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:10,505 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:02:10,505 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:10,505 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:02:10,529 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-10-22 09:02:10,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 09:02:10,540 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:10,541 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:10,543 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:10,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:10,548 INFO L82 PathProgramCache]: Analyzing trace with hash -594068692, now seen corresponding path program 1 times [2019-10-22 09:02:10,555 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:10,555 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581162833] [2019-10-22 09:02:10,555 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:10,556 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:10,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:10,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:10,775 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581162833] [2019-10-22 09:02:10,776 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:10,776 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:02:10,777 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345068407] [2019-10-22 09:02:10,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:02:10,781 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:10,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:02:10,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:02:10,795 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 6 states. [2019-10-22 09:02:10,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:10,898 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-10-22 09:02:10,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:02:10,899 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-10-22 09:02:10,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:10,908 INFO L225 Difference]: With dead ends: 25 [2019-10-22 09:02:10,908 INFO L226 Difference]: Without dead ends: 10 [2019-10-22 09:02:10,910 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:02:10,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-10-22 09:02:10,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-10-22 09:02:10,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-10-22 09:02:10,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2019-10-22 09:02:10,941 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2019-10-22 09:02:10,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:10,942 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2019-10-22 09:02:10,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:02:10,942 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2019-10-22 09:02:10,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 09:02:10,942 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:10,942 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:10,943 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:10,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:10,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1182785712, now seen corresponding path program 1 times [2019-10-22 09:02:10,943 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:10,943 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684582406] [2019-10-22 09:02:10,944 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:10,944 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:10,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:10,997 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:10,997 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:02:11,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:02:11 BoogieIcfgContainer [2019-10-22 09:02:11,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:02:11,021 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:11,021 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:11,021 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:11,022 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:10" (3/4) ... [2019-10-22 09:02:11,024 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 09:02:11,059 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0bf5c6f6-c2e7-4ea2-a883-988aa6d5af2a/bin/uautomizer/witness.graphml [2019-10-22 09:02:11,059 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:11,061 INFO L168 Benchmark]: Toolchain (without parser) took 1192.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 949.8 MB in the beginning and 1.0 GB in the end (delta: -85.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:11,061 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:11,062 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 949.8 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:11,062 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.62 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:11,063 INFO L168 Benchmark]: Boogie Preprocessor took 20.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:11,063 INFO L168 Benchmark]: RCFGBuilder took 217.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:11,063 INFO L168 Benchmark]: TraceAbstraction took 573.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:11,064 INFO L168 Benchmark]: Witness Printer took 38.11 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:11,066 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 305.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 949.8 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.62 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 217.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 573.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 11.5 GB. * Witness Printer took 38.11 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] union dummy d1, d2; [L14] int n = __VERIFIER_nondet_int(); [L15] EXPR n ? &d1 : &d2 [L15] union dummy *pd = n ? &d1 : &d2; [L16] d1.a = __VERIFIER_nondet_int() [L17] COND FALSE !(pd == &d1) [L20] pd->b = 0 [L22] pd == &d2 && d1.a != 0 [L22] EXPR d1.a [L22] pd == &d2 && d1.a != 0 [L22] COND TRUE pd == &d2 && d1.a != 0 [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 18 SDslu, 12 SDs, 0 SdLazy, 35 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 264 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...