./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/implicitunsignedconversion_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_29ae4d1a-8d71-4e54-853f-fdcd3ae16b34/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_29ae4d1a-8d71-4e54-853f-fdcd3ae16b34/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_29ae4d1a-8d71-4e54-853f-fdcd3ae16b34/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_29ae4d1a-8d71-4e54-853f-fdcd3ae16b34/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector-regression/implicitunsignedconversion_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_29ae4d1a-8d71-4e54-853f-fdcd3ae16b34/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_29ae4d1a-8d71-4e54-853f-fdcd3ae16b34/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 59cfeb3705edf7a8f1fb3969f0cbe1c9b0cfc4af ............................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-aa41828 [2018-11-23 01:05:57,195 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 01:05:57,197 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 01:05:57,207 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 01:05:57,208 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 01:05:57,209 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 01:05:57,210 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 01:05:57,211 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 01:05:57,212 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 01:05:57,213 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 01:05:57,214 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 01:05:57,214 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 01:05:57,215 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 01:05:57,215 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 01:05:57,216 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 01:05:57,217 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 01:05:57,217 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 01:05:57,219 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 01:05:57,220 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 01:05:57,221 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 01:05:57,222 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 01:05:57,223 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 01:05:57,224 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 01:05:57,225 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 01:05:57,225 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 01:05:57,226 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 01:05:57,227 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 01:05:57,227 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 01:05:57,228 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 01:05:57,229 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 01:05:57,229 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 01:05:57,230 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 01:05:57,230 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 01:05:57,230 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 01:05:57,231 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 01:05:57,231 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 01:05:57,232 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_29ae4d1a-8d71-4e54-853f-fdcd3ae16b34/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 01:05:57,239 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 01:05:57,240 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 01:05:57,240 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 01:05:57,240 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 01:05:57,241 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 01:05:57,241 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 01:05:57,241 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 01:05:57,241 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 01:05:57,241 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 01:05:57,241 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 01:05:57,241 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 01:05:57,241 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 01:05:57,241 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 01:05:57,241 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 01:05:57,241 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 01:05:57,242 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 01:05:57,242 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 01:05:57,242 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 01:05:57,242 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 01:05:57,242 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 01:05:57,242 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 01:05:57,243 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 01:05:57,243 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 01:05:57,243 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 01:05:57,243 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 01:05:57,243 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 01:05:57,243 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 01:05:57,243 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 01:05:57,244 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 01:05:57,244 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 01:05:57,244 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_29ae4d1a-8d71-4e54-853f-fdcd3ae16b34/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59cfeb3705edf7a8f1fb3969f0cbe1c9b0cfc4af [2018-11-23 01:05:57,269 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 01:05:57,277 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 01:05:57,279 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 01:05:57,280 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 01:05:57,280 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 01:05:57,280 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_29ae4d1a-8d71-4e54-853f-fdcd3ae16b34/bin-2019/uautomizer/../../sv-benchmarks/c/bitvector-regression/implicitunsignedconversion_false-unreach-call_true-termination.c [2018-11-23 01:05:57,318 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_29ae4d1a-8d71-4e54-853f-fdcd3ae16b34/bin-2019/uautomizer/data/57ba05bc4/f05547dc2e1d49dab8f969479f9ed995/FLAGf0178307b [2018-11-23 01:05:57,645 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 01:05:57,646 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_29ae4d1a-8d71-4e54-853f-fdcd3ae16b34/sv-benchmarks/c/bitvector-regression/implicitunsignedconversion_false-unreach-call_true-termination.c [2018-11-23 01:05:57,650 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_29ae4d1a-8d71-4e54-853f-fdcd3ae16b34/bin-2019/uautomizer/data/57ba05bc4/f05547dc2e1d49dab8f969479f9ed995/FLAGf0178307b [2018-11-23 01:05:57,663 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_29ae4d1a-8d71-4e54-853f-fdcd3ae16b34/bin-2019/uautomizer/data/57ba05bc4/f05547dc2e1d49dab8f969479f9ed995 [2018-11-23 01:05:57,665 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 01:05:57,666 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 01:05:57,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 01:05:57,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 01:05:57,670 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 01:05:57,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:05:57" (1/1) ... [2018-11-23 01:05:57,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@130c2e36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:57, skipping insertion in model container [2018-11-23 01:05:57,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:05:57" (1/1) ... [2018-11-23 01:05:57,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 01:05:57,694 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 01:05:57,804 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 01:05:57,807 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 01:05:57,816 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 01:05:57,825 INFO L195 MainTranslator]: Completed translation [2018-11-23 01:05:57,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:57 WrapperNode [2018-11-23 01:05:57,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 01:05:57,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 01:05:57,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 01:05:57,826 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 01:05:57,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:57" (1/1) ... [2018-11-23 01:05:57,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:57" (1/1) ... [2018-11-23 01:05:57,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 01:05:57,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 01:05:57,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 01:05:57,841 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 01:05:57,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:57" (1/1) ... [2018-11-23 01:05:57,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:57" (1/1) ... [2018-11-23 01:05:57,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:57" (1/1) ... [2018-11-23 01:05:57,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:57" (1/1) ... [2018-11-23 01:05:57,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:57" (1/1) ... [2018-11-23 01:05:57,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:57" (1/1) ... [2018-11-23 01:05:57,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:57" (1/1) ... [2018-11-23 01:05:57,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 01:05:57,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 01:05:57,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 01:05:57,854 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 01:05:57,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_29ae4d1a-8d71-4e54-853f-fdcd3ae16b34/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 01:05:57,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 01:05:57,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 01:05:57,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 01:05:57,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 01:05:57,948 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 01:05:57,948 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 01:05:58,050 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 01:05:58,050 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 01:05:58,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:05:58 BoogieIcfgContainer [2018-11-23 01:05:58,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 01:05:58,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 01:05:58,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 01:05:58,054 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 01:05:58,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:05:57" (1/3) ... [2018-11-23 01:05:58,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4c684d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:05:58, skipping insertion in model container [2018-11-23 01:05:58,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:57" (2/3) ... [2018-11-23 01:05:58,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4c684d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:05:58, skipping insertion in model container [2018-11-23 01:05:58,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:05:58" (3/3) ... [2018-11-23 01:05:58,057 INFO L112 eAbstractionObserver]: Analyzing ICFG implicitunsignedconversion_false-unreach-call_true-termination.c [2018-11-23 01:05:58,064 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 01:05:58,070 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 01:05:58,081 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 01:05:58,102 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 01:05:58,102 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 01:05:58,102 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 01:05:58,103 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 01:05:58,103 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 01:05:58,103 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 01:05:58,103 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 01:05:58,103 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 01:05:58,103 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 01:05:58,116 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-23 01:05:58,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 01:05:58,120 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:05:58,121 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:05:58,123 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 01:05:58,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:05:58,127 INFO L82 PathProgramCache]: Analyzing trace with hash 408836530, now seen corresponding path program 1 times [2018-11-23 01:05:58,128 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:05:58,129 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:05:58,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:05:58,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:05:58,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:05:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:05:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:05:58,217 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #14#return; [?] CALL call #t~ret0 := main(); [?] ~plus_one~0 := 1;~minus_one~0 := -1; VAL [main_~minus_one~0=(- 1), main_~plus_one~0=1] [?] assume ~plus_one~0 % 4294967296 < ~minus_one~0 % 4294967296; VAL [main_~minus_one~0=(- 1), main_~plus_one~0=1] [?] assume !false; VAL [main_~minus_one~0=(- 1), main_~plus_one~0=1] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L4] ~plus_one~0 := 1; [L5] ~minus_one~0 := -1; VAL [~minus_one~0=-1, ~plus_one~0=1] [L7-L9] assume ~plus_one~0 % 4294967296 < ~minus_one~0 % 4294967296; VAL [~minus_one~0=-1, ~plus_one~0=1] [L12] assert false; VAL [~minus_one~0=-1, ~plus_one~0=1] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L4] ~plus_one~0 := 1; [L5] ~minus_one~0 := -1; VAL [~minus_one~0=-1, ~plus_one~0=1] [L7-L9] assume ~plus_one~0 % 4294967296 < ~minus_one~0 % 4294967296; VAL [~minus_one~0=-1, ~plus_one~0=1] [L12] assert false; VAL [~minus_one~0=-1, ~plus_one~0=1] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L4] ~plus_one~0 := 1; [L5] ~minus_one~0 := -1; VAL [~minus_one~0=-1, ~plus_one~0=1] [L7] COND TRUE ~plus_one~0 % 4294967296 < ~minus_one~0 % 4294967296 VAL [~minus_one~0=-1, ~plus_one~0=1] [L12] assert false; VAL [~minus_one~0=-1, ~plus_one~0=1] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L4] ~plus_one~0 := 1; [L5] ~minus_one~0 := -1; VAL [~minus_one~0=-1, ~plus_one~0=1] [L7] COND TRUE ~plus_one~0 % 4294967296 < ~minus_one~0 % 4294967296 VAL [~minus_one~0=-1, ~plus_one~0=1] [L12] assert false; VAL [~minus_one~0=-1, ~plus_one~0=1] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L4] ~plus_one~0 := 1; [L5] ~minus_one~0 := -1; VAL [~minus_one~0=-1, ~plus_one~0=1] [L7] COND TRUE ~plus_one~0 % 4294967296 < ~minus_one~0 % 4294967296 VAL [~minus_one~0=-1, ~plus_one~0=1] [L12] assert false; VAL [~minus_one~0=-1, ~plus_one~0=1] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L4] ~plus_one~0 := 1; [L5] ~minus_one~0 := -1; VAL [~minus_one~0=-1, ~plus_one~0=1] [L7] COND TRUE ~plus_one~0 % 4294967296 < ~minus_one~0 % 4294967296 VAL [~minus_one~0=-1, ~plus_one~0=1] [L12] assert false; VAL [~minus_one~0=-1, ~plus_one~0=1] [L4] unsigned int plus_one = 1; [L5] int minus_one = -1; VAL [minus_one=-1, plus_one=1] [L7] COND TRUE plus_one < minus_one VAL [minus_one=-1, plus_one=1] [L12] __VERIFIER_error() VAL [minus_one=-1, plus_one=1] ----- [2018-11-23 01:05:58,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:05:58 BoogieIcfgContainer [2018-11-23 01:05:58,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 01:05:58,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 01:05:58,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 01:05:58,239 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 01:05:58,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:05:58" (3/4) ... [2018-11-23 01:05:58,242 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #14#return; [?] CALL call #t~ret0 := main(); [?] ~plus_one~0 := 1;~minus_one~0 := -1; VAL [main_~minus_one~0=(- 1), main_~plus_one~0=1] [?] assume ~plus_one~0 % 4294967296 < ~minus_one~0 % 4294967296; VAL [main_~minus_one~0=(- 1), main_~plus_one~0=1] [?] assume !false; VAL [main_~minus_one~0=(- 1), main_~plus_one~0=1] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L4] ~plus_one~0 := 1; [L5] ~minus_one~0 := -1; VAL [~minus_one~0=-1, ~plus_one~0=1] [L7-L9] assume ~plus_one~0 % 4294967296 < ~minus_one~0 % 4294967296; VAL [~minus_one~0=-1, ~plus_one~0=1] [L12] assert false; VAL [~minus_one~0=-1, ~plus_one~0=1] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L4] ~plus_one~0 := 1; [L5] ~minus_one~0 := -1; VAL [~minus_one~0=-1, ~plus_one~0=1] [L7-L9] assume ~plus_one~0 % 4294967296 < ~minus_one~0 % 4294967296; VAL [~minus_one~0=-1, ~plus_one~0=1] [L12] assert false; VAL [~minus_one~0=-1, ~plus_one~0=1] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L4] ~plus_one~0 := 1; [L5] ~minus_one~0 := -1; VAL [~minus_one~0=-1, ~plus_one~0=1] [L7] COND TRUE ~plus_one~0 % 4294967296 < ~minus_one~0 % 4294967296 VAL [~minus_one~0=-1, ~plus_one~0=1] [L12] assert false; VAL [~minus_one~0=-1, ~plus_one~0=1] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L4] ~plus_one~0 := 1; [L5] ~minus_one~0 := -1; VAL [~minus_one~0=-1, ~plus_one~0=1] [L7] COND TRUE ~plus_one~0 % 4294967296 < ~minus_one~0 % 4294967296 VAL [~minus_one~0=-1, ~plus_one~0=1] [L12] assert false; VAL [~minus_one~0=-1, ~plus_one~0=1] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L4] ~plus_one~0 := 1; [L5] ~minus_one~0 := -1; VAL [~minus_one~0=-1, ~plus_one~0=1] [L7] COND TRUE ~plus_one~0 % 4294967296 < ~minus_one~0 % 4294967296 VAL [~minus_one~0=-1, ~plus_one~0=1] [L12] assert false; VAL [~minus_one~0=-1, ~plus_one~0=1] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L4] ~plus_one~0 := 1; [L5] ~minus_one~0 := -1; VAL [~minus_one~0=-1, ~plus_one~0=1] [L7] COND TRUE ~plus_one~0 % 4294967296 < ~minus_one~0 % 4294967296 VAL [~minus_one~0=-1, ~plus_one~0=1] [L12] assert false; VAL [~minus_one~0=-1, ~plus_one~0=1] [L4] unsigned int plus_one = 1; [L5] int minus_one = -1; VAL [minus_one=-1, plus_one=1] [L7] COND TRUE plus_one < minus_one VAL [minus_one=-1, plus_one=1] [L12] __VERIFIER_error() VAL [minus_one=-1, plus_one=1] ----- [2018-11-23 01:05:58,274 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_29ae4d1a-8d71-4e54-853f-fdcd3ae16b34/bin-2019/uautomizer/witness.graphml [2018-11-23 01:05:58,274 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 01:05:58,275 INFO L168 Benchmark]: Toolchain (without parser) took 609.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 01:05:58,276 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 01:05:58,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.99 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 01:05:58,277 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.52 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 01:05:58,277 INFO L168 Benchmark]: Boogie Preprocessor took 12.44 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 01:05:58,278 INFO L168 Benchmark]: RCFGBuilder took 197.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 946.9 MB in the beginning and 1.2 GB in the end (delta: -205.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-23 01:05:58,278 INFO L168 Benchmark]: TraceAbstraction took 186.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-23 01:05:58,278 INFO L168 Benchmark]: Witness Printer took 35.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 01:05:58,282 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 158.99 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 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 14.52 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.44 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 197.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 946.9 MB in the beginning and 1.2 GB in the end (delta: -205.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 186.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 35.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L4] unsigned int plus_one = 1; [L5] int minus_one = -1; VAL [minus_one=-1, plus_one=1] [L7] COND TRUE plus_one < minus_one VAL [minus_one=-1, plus_one=1] [L12] __VERIFIER_error() VAL [minus_one=-1, plus_one=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...