./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 f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/modulus-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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-f6fb2bb [2019-11-19 18:26:18,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 18:26:18,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 18:26:18,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 18:26:18,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 18:26:18,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 18:26:18,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 18:26:18,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 18:26:18,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 18:26:18,632 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 18:26:18,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 18:26:18,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 18:26:18,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 18:26:18,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 18:26:18,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 18:26:18,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 18:26:18,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 18:26:18,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 18:26:18,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 18:26:18,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 18:26:18,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 18:26:18,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 18:26:18,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 18:26:18,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 18:26:18,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 18:26:18,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 18:26:18,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 18:26:18,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 18:26:18,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 18:26:18,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 18:26:18,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 18:26:18,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 18:26:18,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 18:26:18,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 18:26:18,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 18:26:18,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 18:26:18,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 18:26:18,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 18:26:18,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 18:26:18,663 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 18:26:18,664 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 18:26:18,665 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 18:26:18,692 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 18:26:18,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 18:26:18,694 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 18:26:18,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 18:26:18,695 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 18:26:18,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 18:26:18,696 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 18:26:18,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 18:26:18,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 18:26:18,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 18:26:18,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 18:26:18,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 18:26:18,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 18:26:18,699 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 18:26:18,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 18:26:18,700 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 18:26:18,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 18:26:18,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 18:26:18,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 18:26:18,701 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 18:26:18,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 18:26:18,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 18:26:18,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 18:26:18,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 18:26:18,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 18:26:18,703 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 18:26:18,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 18:26:18,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 18:26:18,704 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 18:26:19,034 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 18:26:19,047 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 18:26:19,050 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 18:26:19,052 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 18:26:19,052 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 18:26:19,053 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/modulus-2.i [2019-11-19 18:26:19,114 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91fad894b/3c825f9264a143fd961dd5e7834151e4/FLAG2393e2b33 [2019-11-19 18:26:19,567 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 18:26:19,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/modulus-2.i [2019-11-19 18:26:19,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91fad894b/3c825f9264a143fd961dd5e7834151e4/FLAG2393e2b33 [2019-11-19 18:26:19,974 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91fad894b/3c825f9264a143fd961dd5e7834151e4 [2019-11-19 18:26:19,978 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 18:26:19,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 18:26:19,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 18:26:19,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 18:26:19,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 18:26:19,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:26:19" (1/1) ... [2019-11-19 18:26:19,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67838e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:19, skipping insertion in model container [2019-11-19 18:26:19,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:26:19" (1/1) ... [2019-11-19 18:26:19,996 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 18:26:20,015 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 18:26:20,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:26:20,225 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 18:26:20,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:26:20,257 INFO L192 MainTranslator]: Completed translation [2019-11-19 18:26:20,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:20 WrapperNode [2019-11-19 18:26:20,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 18:26:20,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 18:26:20,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 18:26:20,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 18:26:20,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:20" (1/1) ... [2019-11-19 18:26:20,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:20" (1/1) ... [2019-11-19 18:26:20,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 18:26:20,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 18:26:20,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 18:26:20,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 18:26:20,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:20" (1/1) ... [2019-11-19 18:26:20,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:20" (1/1) ... [2019-11-19 18:26:20,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:20" (1/1) ... [2019-11-19 18:26:20,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:20" (1/1) ... [2019-11-19 18:26:20,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:20" (1/1) ... [2019-11-19 18:26:20,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:20" (1/1) ... [2019-11-19 18:26:20,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:20" (1/1) ... [2019-11-19 18:26:20,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 18:26:20,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 18:26:20,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 18:26:20,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 18:26:20,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 18:26:20,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 18:26:20,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 18:26:20,624 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 18:26:20,625 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-19 18:26:20,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:26:20 BoogieIcfgContainer [2019-11-19 18:26:20,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 18:26:20,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 18:26:20,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 18:26:20,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 18:26:20,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:26:19" (1/3) ... [2019-11-19 18:26:20,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203eef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:26:20, skipping insertion in model container [2019-11-19 18:26:20,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:20" (2/3) ... [2019-11-19 18:26:20,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203eef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:26:20, skipping insertion in model container [2019-11-19 18:26:20,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:26:20" (3/3) ... [2019-11-19 18:26:20,652 INFO L109 eAbstractionObserver]: Analyzing ICFG modulus-2.i [2019-11-19 18:26:20,680 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 18:26:20,694 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 18:26:20,717 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 18:26:20,743 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 18:26:20,744 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 18:26:20,744 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 18:26:20,744 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 18:26:20,744 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 18:26:20,744 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 18:26:20,745 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 18:26:20,745 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 18:26:20,765 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-19 18:26:20,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-19 18:26:20,770 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:26:20,771 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:26:20,771 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:26:20,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:26:20,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1538988787, now seen corresponding path program 1 times [2019-11-19 18:26:20,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:26:20,784 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681522966] [2019-11-19 18:26:20,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:26:20,861 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-19 18:26:20,862 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1701256510] [2019-11-19 18:26:20,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 18:26:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2019-11-19 18:26:24,116 WARN L168 FreeRefinementEngine]: Strategy CAMEL was unsuccessful and could not determine trace feasibility [2019-11-19 18:26:24,117 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 18:26:24,322 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 18:26:24,339 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-11-19 18:26:24,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:26:24 BoogieIcfgContainer [2019-11-19 18:26:24,339 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 18:26:24,340 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 18:26:24,340 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 18:26:24,340 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 18:26:24,341 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:26:20" (3/4) ... [2019-11-19 18:26:24,345 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 18:26:24,345 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 18:26:24,348 INFO L168 Benchmark]: Toolchain (without parser) took 4367.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -146.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:26:24,349 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:26:24,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.93 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:26:24,354 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -194.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-19 18:26:24,355 INFO L168 Benchmark]: Boogie Preprocessor took 30.44 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-19 18:26:24,356 INFO L168 Benchmark]: RCFGBuilder took 246.76 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: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. [2019-11-19 18:26:24,357 INFO L168 Benchmark]: TraceAbstraction took 3711.71 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-19 18:26:24,358 INFO L168 Benchmark]: Witness Printer took 5.64 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 18:26:24,362 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 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 277.93 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 89.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -194.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.44 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 246.76 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: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3711.71 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.64 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: 3.5s, 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, 3.2s 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...