./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/trex03-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_18e9638b-aa00-4edc-aacd-27ce559a4e65/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_18e9638b-aa00-4edc-aacd-27ce559a4e65/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_18e9638b-aa00-4edc-aacd-27ce559a4e65/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_18e9638b-aa00-4edc-aacd-27ce559a4e65/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/trex03-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_18e9638b-aa00-4edc-aacd-27ce559a4e65/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_18e9638b-aa00-4edc-aacd-27ce559a4e65/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 6afe57eec1ae7b7a346bea173d21fd3ac6dfbe03 ................................................................................................................................................................................................................................................................ 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 0.1.24-6b5699a [2019-11-25 08:47:00,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:47:00,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:47:00,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:47:00,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:47:00,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:47:00,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:47:00,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:47:00,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:47:00,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:47:00,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:47:00,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:47:00,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:47:00,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:47:00,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:47:00,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:47:00,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:47:00,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:47:00,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:47:00,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:47:00,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:47:00,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:47:00,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:47:00,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:47:00,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:47:00,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:47:00,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:47:00,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:47:00,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:47:00,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:47:00,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:47:00,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:47:00,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:47:00,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:47:00,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:47:00,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:47:00,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:47:00,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:47:00,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:47:00,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:47:00,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:47:00,255 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_18e9638b-aa00-4edc-aacd-27ce559a4e65/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:47:00,267 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:47:00,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:47:00,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:47:00,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:47:00,277 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:47:00,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:47:00,277 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:47:00,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:47:00,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:47:00,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:47:00,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:47:00,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:47:00,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:47:00,279 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:47:00,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:47:00,279 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:47:00,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:47:00,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:47:00,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:47:00,281 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:47:00,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:47:00,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:47:00,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:47:00,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:47:00,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:47:00,282 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:47:00,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:47:00,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:47:00,282 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/run_dir_18e9638b-aa00-4edc-aacd-27ce559a4e65/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 -> 6afe57eec1ae7b7a346bea173d21fd3ac6dfbe03 [2019-11-25 08:47:00,455 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:47:00,467 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:47:00,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:47:00,470 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:47:00,471 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:47:00,471 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_18e9638b-aa00-4edc-aacd-27ce559a4e65/bin/uautomizer/../../sv-benchmarks/c/loops/trex03-1.c [2019-11-25 08:47:00,528 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_18e9638b-aa00-4edc-aacd-27ce559a4e65/bin/uautomizer/data/03998cdcb/5677a0e762f741b18a19df555fca4913/FLAG036f462dd [2019-11-25 08:47:00,894 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:47:00,895 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_18e9638b-aa00-4edc-aacd-27ce559a4e65/sv-benchmarks/c/loops/trex03-1.c [2019-11-25 08:47:00,900 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_18e9638b-aa00-4edc-aacd-27ce559a4e65/bin/uautomizer/data/03998cdcb/5677a0e762f741b18a19df555fca4913/FLAG036f462dd [2019-11-25 08:47:01,262 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_18e9638b-aa00-4edc-aacd-27ce559a4e65/bin/uautomizer/data/03998cdcb/5677a0e762f741b18a19df555fca4913 [2019-11-25 08:47:01,265 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:47:01,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:47:01,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:47:01,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:47:01,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:47:01,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:47:01" (1/1) ... [2019-11-25 08:47:01,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6484e9f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:01, skipping insertion in model container [2019-11-25 08:47:01,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:47:01" (1/1) ... [2019-11-25 08:47:01,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:47:01,295 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:47:01,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:47:01,441 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:47:01,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:47:01,526 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:47:01,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:01 WrapperNode [2019-11-25 08:47:01,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:47:01,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:47:01,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:47:01,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:47:01,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:01" (1/1) ... [2019-11-25 08:47:01,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:01" (1/1) ... [2019-11-25 08:47:01,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:47:01,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:47:01,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:47:01,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:47:01,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:01" (1/1) ... [2019-11-25 08:47:01,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:01" (1/1) ... [2019-11-25 08:47:01,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:01" (1/1) ... [2019-11-25 08:47:01,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:01" (1/1) ... [2019-11-25 08:47:01,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:01" (1/1) ... [2019-11-25 08:47:01,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:01" (1/1) ... [2019-11-25 08:47:01,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:01" (1/1) ... [2019-11-25 08:47:01,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:47:01,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:47:01,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:47:01,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:47:01,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_18e9638b-aa00-4edc-aacd-27ce559a4e65/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 [2019-11-25 08:47:01,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:47:01,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:47:01,882 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:47:01,882 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-25 08:47:01,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:01 BoogieIcfgContainer [2019-11-25 08:47:01,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:47:01,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:47:01,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:47:01,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:47:01,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:47:01" (1/3) ... [2019-11-25 08:47:01,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e52c32c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:47:01, skipping insertion in model container [2019-11-25 08:47:01,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:01" (2/3) ... [2019-11-25 08:47:01,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e52c32c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:47:01, skipping insertion in model container [2019-11-25 08:47:01,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:01" (3/3) ... [2019-11-25 08:47:01,889 INFO L109 eAbstractionObserver]: Analyzing ICFG trex03-1.c [2019-11-25 08:47:01,909 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:47:01,914 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:47:01,950 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:47:01,982 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:47:01,982 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:47:01,982 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:47:01,982 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:47:01,983 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:47:01,983 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:47:01,983 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:47:01,983 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:47:01,996 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-11-25 08:47:02,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-25 08:47:02,000 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:47:02,001 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-25 08:47:02,001 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:47:02,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:02,009 INFO L82 PathProgramCache]: Analyzing trace with hash 30293572, now seen corresponding path program 1 times [2019-11-25 08:47:02,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:02,015 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92385839] [2019-11-25 08:47:02,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:02,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:02,090 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92385839] [2019-11-25 08:47:02,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:02,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:47:02,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200510734] [2019-11-25 08:47:02,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:47:02,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:02,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:47:02,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:47:02,107 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2019-11-25 08:47:02,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:02,118 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-11-25 08:47:02,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:47:02,120 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-11-25 08:47:02,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:47:02,127 INFO L225 Difference]: With dead ends: 21 [2019-11-25 08:47:02,127 INFO L226 Difference]: Without dead ends: 9 [2019-11-25 08:47:02,129 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:47:02,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-25 08:47:02,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-25 08:47:02,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-25 08:47:02,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2019-11-25 08:47:02,153 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 5 [2019-11-25 08:47:02,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:47:02,153 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2019-11-25 08:47:02,153 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:47:02,154 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2019-11-25 08:47:02,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-25 08:47:02,154 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:47:02,154 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-25 08:47:02,154 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:47:02,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:02,155 INFO L82 PathProgramCache]: Analyzing trace with hash 29816916, now seen corresponding path program 1 times [2019-11-25 08:47:02,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:02,155 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363004742] [2019-11-25 08:47:02,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:02,210 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:02,210 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:47:02,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:47:02 BoogieIcfgContainer [2019-11-25 08:47:02,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:47:02,229 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:47:02,229 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:47:02,229 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:47:02,230 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:01" (3/4) ... [2019-11-25 08:47:02,232 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:47:02,266 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_18e9638b-aa00-4edc-aacd-27ce559a4e65/bin/uautomizer/witness.graphml [2019-11-25 08:47:02,267 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:47:02,269 INFO L168 Benchmark]: Toolchain (without parser) took 1002.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -190.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:02,269 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:02,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.1 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -229.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:02,270 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:02,271 INFO L168 Benchmark]: Boogie Preprocessor took 17.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:02,272 INFO L168 Benchmark]: RCFGBuilder took 303.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:02,273 INFO L168 Benchmark]: TraceAbstraction took 344.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:02,273 INFO L168 Benchmark]: Witness Printer took 37.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:02,276 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 265.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.1 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -229.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 303.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 344.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 37.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L16] unsigned int d1=1, d2=1, d3=1; [L17] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L17] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L19] COND FALSE !(x1>0 && x2>0 && x3>0) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 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, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 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...