./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/modulus-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8ee7e2cc-1884-470b-b404-5c8d7eff626b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8ee7e2cc-1884-470b-b404-5c8d7eff626b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8ee7e2cc-1884-470b-b404-5c8d7eff626b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8ee7e2cc-1884-470b-b404-5c8d7eff626b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/modulus-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8ee7e2cc-1884-470b-b404-5c8d7eff626b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8ee7e2cc-1884-470b-b404-5c8d7eff626b/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 c028dc478ad08c52f1db2e76a15a3094442b18a8 ..................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 23:15:04,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:15:04,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:15:04,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:15:04,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:15:04,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:15:04,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:15:04,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:15:04,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:15:04,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:15:04,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:15:04,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:15:04,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:15:04,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:15:04,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:15:04,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:15:04,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:15:04,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:15:04,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:15:04,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:15:04,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:15:04,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:15:04,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:15:04,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:15:04,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:15:04,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:15:04,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:15:04,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:15:04,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:15:04,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:15:04,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:15:04,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:15:04,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:15:04,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:15:04,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:15:04,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:15:04,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:15:04,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:15:04,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:15:04,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:15:04,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:15:04,502 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8ee7e2cc-1884-470b-b404-5c8d7eff626b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 23:15:04,530 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:15:04,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:15:04,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:15:04,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:15:04,532 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:15:04,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:15:04,532 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:15:04,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:15:04,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:15:04,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:15:04,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:15:04,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:15:04,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:15:04,533 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:15:04,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:15:04,534 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:15:04,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:15:04,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:15:04,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:15:04,535 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:15:04,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 23:15:04,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:15:04,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:15:04,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:15:04,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:15:04,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:15:04,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 23:15:04,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:15:04,537 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_8ee7e2cc-1884-470b-b404-5c8d7eff626b/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 -> c028dc478ad08c52f1db2e76a15a3094442b18a8 [2019-11-19 23:15:04,740 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:15:04,756 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:15:04,761 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:15:04,762 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:15:04,763 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:15:04,764 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8ee7e2cc-1884-470b-b404-5c8d7eff626b/bin/uautomizer/../../sv-benchmarks/c/bitvector/modulus-2.i [2019-11-19 23:15:04,835 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ee7e2cc-1884-470b-b404-5c8d7eff626b/bin/uautomizer/data/a79c2055d/9f091fda1c70490b92ee7abdbcf0fc72/FLAG6f2f9523c [2019-11-19 23:15:05,283 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:15:05,284 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8ee7e2cc-1884-470b-b404-5c8d7eff626b/sv-benchmarks/c/bitvector/modulus-2.i [2019-11-19 23:15:05,290 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ee7e2cc-1884-470b-b404-5c8d7eff626b/bin/uautomizer/data/a79c2055d/9f091fda1c70490b92ee7abdbcf0fc72/FLAG6f2f9523c [2019-11-19 23:15:05,724 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8ee7e2cc-1884-470b-b404-5c8d7eff626b/bin/uautomizer/data/a79c2055d/9f091fda1c70490b92ee7abdbcf0fc72 [2019-11-19 23:15:05,727 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:15:05,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:15:05,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:15:05,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:15:05,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:15:05,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:15:05" (1/1) ... [2019-11-19 23:15:05,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a8b8bca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:15:05, skipping insertion in model container [2019-11-19 23:15:05,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:15:05" (1/1) ... [2019-11-19 23:15:05,744 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:15:05,763 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:15:06,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:15:06,101 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:15:06,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:15:06,150 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:15:06,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:15:06 WrapperNode [2019-11-19 23:15:06,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:15:06,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:15:06,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:15:06,152 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:15:06,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:15:06" (1/1) ... [2019-11-19 23:15:06,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:15:06" (1/1) ... [2019-11-19 23:15:06,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:15:06,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:15:06,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:15:06,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:15:06,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:15:06" (1/1) ... [2019-11-19 23:15:06,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:15:06" (1/1) ... [2019-11-19 23:15:06,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:15:06" (1/1) ... [2019-11-19 23:15:06,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:15:06" (1/1) ... [2019-11-19 23:15:06,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:15:06" (1/1) ... [2019-11-19 23:15:06,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:15:06" (1/1) ... [2019-11-19 23:15:06,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:15:06" (1/1) ... [2019-11-19 23:15:06,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:15:06,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:15:06,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:15:06,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:15:06,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:15:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ee7e2cc-1884-470b-b404-5c8d7eff626b/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 [2019-11-19 23:15:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:15:06,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:15:06,560 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:15:06,560 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-19 23:15:06,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:15:06 BoogieIcfgContainer [2019-11-19 23:15:06,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:15:06,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 23:15:06,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 23:15:06,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 23:15:06,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:15:05" (1/3) ... [2019-11-19 23:15:06,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@656ebf67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:15:06, skipping insertion in model container [2019-11-19 23:15:06,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:15:06" (2/3) ... [2019-11-19 23:15:06,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@656ebf67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:15:06, skipping insertion in model container [2019-11-19 23:15:06,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:15:06" (3/3) ... [2019-11-19 23:15:06,570 INFO L109 eAbstractionObserver]: Analyzing ICFG modulus-2.i [2019-11-19 23:15:06,596 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 23:15:06,602 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 23:15:06,620 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 23:15:06,642 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 23:15:06,642 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 23:15:06,643 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 23:15:06,643 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:15:06,643 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:15:06,643 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 23:15:06,643 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:15:06,644 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 23:15:06,659 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-19 23:15:06,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-19 23:15:06,665 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:15:06,665 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:15:06,666 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:15:06,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:15:06,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1538988787, now seen corresponding path program 1 times [2019-11-19 23:15:06,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:15:06,685 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34062635] [2019-11-19 23:15:06,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:15:06,768 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-19 23:15:06,769 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [780214604] [2019-11-19 23:15:06,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ee7e2cc-1884-470b-b404-5c8d7eff626b/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 23:15:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2019-11-19 23:15:10,134 WARN L168 FreeRefinementEngine]: Strategy CAMEL was unsuccessful and could not determine trace feasibility [2019-11-19 23:15:10,134 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 23:15:10,340 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 23:15:10,353 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-11-19 23:15:10,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:15:10 BoogieIcfgContainer [2019-11-19 23:15:10,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 23:15:10,354 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:15:10,354 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:15:10,355 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:15:10,355 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:15:06" (3/4) ... [2019-11-19 23:15:10,359 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 23:15:10,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:15:10,361 INFO L168 Benchmark]: Toolchain (without parser) took 4632.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -159.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:15:10,362 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:15:10,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -196.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:15:10,363 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.59 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. [2019-11-19 23:15:10,364 INFO L168 Benchmark]: Boogie Preprocessor took 23.93 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. [2019-11-19 23:15:10,364 INFO L168 Benchmark]: RCFGBuilder took 346.39 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-19 23:15:10,365 INFO L168 Benchmark]: TraceAbstraction took 3791.15 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: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-19 23:15:10,366 INFO L168 Benchmark]: Witness Printer took 4.73 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. [2019-11-19 23:15:10,369 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 421.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -196.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.59 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. * Boogie Preprocessor took 23.93 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. * RCFGBuilder took 346.39 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3791.15 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: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.73 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: - UnprovableResult [Line: 7]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of shiftLeft at line 29. Possible FailurePath: [L24] unsigned int n = __VERIFIER_nondet_uint(); [L25] unsigned int s = __VERIFIER_nondet_uint(); [L26] unsigned int d; [L27] unsigned int m; [L29] d = (1 << s) - 1 [L30] COND TRUE d > 0 [L31] m = n [L32] COND FALSE !(n > d) [L40] COND TRUE m == d [L41] m = 0 [L6] COND TRUE !(cond) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Result: UNKNOWN, OverallTime: 3.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.3s 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, 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...