./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 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b93a6eb3-9203-49ad-84da-d5b2338c349a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b93a6eb3-9203-49ad-84da-d5b2338c349a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b93a6eb3-9203-49ad-84da-d5b2338c349a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b93a6eb3-9203-49ad-84da-d5b2338c349a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/modulus-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b93a6eb3-9203-49ad-84da-d5b2338c349a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b93a6eb3-9203-49ad-84da-d5b2338c349a/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 0.1.24-6b5699a [2019-11-25 08:50:41,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:50:41,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:50:41,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:50:41,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:50:41,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:50:41,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:50:41,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:50:41,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:50:41,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:50:41,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:50:41,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:50:41,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:50:41,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:50:41,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:50:41,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:50:41,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:50:41,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:50:41,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:50:41,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:50:41,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:50:41,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:50:41,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:50:41,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:50:41,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:50:41,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:50:41,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:50:41,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:50:41,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:50:41,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:50:41,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:50:41,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:50:41,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:50:41,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:50:41,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:50:41,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:50:41,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:50:41,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:50:41,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:50:41,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:50:41,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:50:41,315 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b93a6eb3-9203-49ad-84da-d5b2338c349a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:50:41,327 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:50:41,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:50:41,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:50:41,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:50:41,329 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:50:41,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:50:41,329 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:50:41,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:50:41,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:50:41,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:50:41,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:50:41,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:50:41,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:50:41,330 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:50:41,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:50:41,331 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:50:41,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:50:41,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:50:41,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:50:41,332 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:50:41,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:50:41,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:50:41,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:50:41,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:50:41,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:50:41,333 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:50:41,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:50:41,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:50:41,333 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_b93a6eb3-9203-49ad-84da-d5b2338c349a/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 [2019-11-25 08:50:41,477 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:50:41,488 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:50:41,494 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:50:41,498 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:50:41,501 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:50:41,503 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b93a6eb3-9203-49ad-84da-d5b2338c349a/bin/uautomizer/../../sv-benchmarks/c/bitvector/modulus-2.i [2019-11-25 08:50:41,566 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b93a6eb3-9203-49ad-84da-d5b2338c349a/bin/uautomizer/data/d1d9468a3/0b4b0320b15e489586d78b6b569eaf0b/FLAG94d3b8375 [2019-11-25 08:50:41,931 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:50:41,932 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b93a6eb3-9203-49ad-84da-d5b2338c349a/sv-benchmarks/c/bitvector/modulus-2.i [2019-11-25 08:50:41,937 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b93a6eb3-9203-49ad-84da-d5b2338c349a/bin/uautomizer/data/d1d9468a3/0b4b0320b15e489586d78b6b569eaf0b/FLAG94d3b8375 [2019-11-25 08:50:41,946 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b93a6eb3-9203-49ad-84da-d5b2338c349a/bin/uautomizer/data/d1d9468a3/0b4b0320b15e489586d78b6b569eaf0b [2019-11-25 08:50:41,949 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:50:41,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:50:41,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:50:41,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:50:41,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:50:41,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:41" (1/1) ... [2019-11-25 08:50:41,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c4c7a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:41, skipping insertion in model container [2019-11-25 08:50:41,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:41" (1/1) ... [2019-11-25 08:50:41,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:50:41,980 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:50:42,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:50:42,132 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:50:42,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:50:42,218 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:50:42,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:42 WrapperNode [2019-11-25 08:50:42,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:50:42,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:50:42,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:50:42,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:50:42,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:42" (1/1) ... [2019-11-25 08:50:42,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:42" (1/1) ... [2019-11-25 08:50:42,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:50:42,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:50:42,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:50:42,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:50:42,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:42" (1/1) ... [2019-11-25 08:50:42,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:42" (1/1) ... [2019-11-25 08:50:42,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:42" (1/1) ... [2019-11-25 08:50:42,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:42" (1/1) ... [2019-11-25 08:50:42,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:42" (1/1) ... [2019-11-25 08:50:42,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:42" (1/1) ... [2019-11-25 08:50:42,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:42" (1/1) ... [2019-11-25 08:50:42,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:50:42,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:50:42,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:50:42,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:50:42,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b93a6eb3-9203-49ad-84da-d5b2338c349a/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 08:50:42,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:50:42,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:50:42,600 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:50:42,601 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-25 08:50:42,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:42 BoogieIcfgContainer [2019-11-25 08:50:42,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:50:42,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:50:42,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:50:42,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:50:42,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:50:41" (1/3) ... [2019-11-25 08:50:42,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65307120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:50:42, skipping insertion in model container [2019-11-25 08:50:42,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:42" (2/3) ... [2019-11-25 08:50:42,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65307120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:50:42, skipping insertion in model container [2019-11-25 08:50:42,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:42" (3/3) ... [2019-11-25 08:50:42,622 INFO L109 eAbstractionObserver]: Analyzing ICFG modulus-2.i [2019-11-25 08:50:42,630 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:50:42,651 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:50:42,662 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:50:42,711 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:50:42,712 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:50:42,712 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:50:42,712 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:50:42,713 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:50:42,713 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:50:42,713 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:50:42,715 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:50:42,729 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-25 08:50:42,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-25 08:50:42,734 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:50:42,735 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:42,735 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:50:42,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:42,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1538988787, now seen corresponding path program 1 times [2019-11-25 08:50:42,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:42,751 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37695641] [2019-11-25 08:50:42,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:42,850 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-25 08:50:42,852 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [731473386] [2019-11-25 08:50:42,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b93a6eb3-9203-49ad-84da-d5b2338c349a/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 [2019-11-25 08:50:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2019-11-25 08:50:45,953 WARN L168 FreeRefinementEngine]: Strategy CAMEL was unsuccessful and could not determine trace feasibility [2019-11-25 08:50:45,954 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:50:46,158 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:50:46,183 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-11-25 08:50:46,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:50:46 BoogieIcfgContainer [2019-11-25 08:50:46,184 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:50:46,184 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:50:46,184 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:50:46,185 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:50:46,185 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:42" (3/4) ... [2019-11-25 08:50:46,188 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:50:46,188 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:50:46,190 INFO L168 Benchmark]: Toolchain (without parser) took 4239.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:50:46,190 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:50:46,191 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -189.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:46,192 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.98 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 08:50:46,192 INFO L168 Benchmark]: Boogie Preprocessor took 24.22 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 08:50:46,193 INFO L168 Benchmark]: RCFGBuilder took 327.47 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:46,194 INFO L168 Benchmark]: TraceAbstraction took 3581.19 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. [2019-11-25 08:50:46,194 INFO L168 Benchmark]: Witness Printer took 3.89 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 08:50:46,197 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 268.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -189.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.98 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 24.22 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 327.47 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3581.19 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 3.89 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: 3.4s, 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, 3.0s 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, 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...