./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/bitvector/modulus_true-unreach-call_true-no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/modulus_true-unreach-call_true-no-overflow.i -s /tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c028dc478ad08c52f1db2e76a15a3094442b18a8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:09:04,509 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:09:04,510 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:09:04,516 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:09:04,516 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:09:04,517 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:09:04,518 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:09:04,519 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:09:04,520 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:09:04,520 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:09:04,521 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:09:04,521 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:09:04,522 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:09:04,522 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:09:04,523 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:09:04,524 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:09:04,524 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:09:04,525 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:09:04,526 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:09:04,527 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:09:04,528 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:09:04,529 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:09:04,530 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:09:04,530 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:09:04,531 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:09:04,531 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:09:04,532 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:09:04,532 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:09:04,533 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:09:04,534 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:09:04,534 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:09:04,534 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:09:04,534 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:09:04,534 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:09:04,535 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:09:04,536 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:09:04,536 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 10:09:04,543 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:09:04,543 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:09:04,544 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:09:04,544 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 10:09:04,544 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:09:04,544 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:09:04,544 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:09:04,545 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:09:04,545 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:09:04,545 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:09:04,545 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:09:04,545 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:09:04,545 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:09:04,545 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:09:04,545 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:09:04,545 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:09:04,546 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:09:04,546 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:09:04,546 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:09:04,546 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:09:04,546 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:09:04,546 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:09:04,546 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:09:04,546 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:09:04,546 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:09:04,547 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:09:04,547 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:09:04,547 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 10:09:04,547 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:09:04,547 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:09:04,547 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c028dc478ad08c52f1db2e76a15a3094442b18a8 [2018-11-18 10:09:04,570 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:09:04,578 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:09:04,580 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:09:04,581 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:09:04,581 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:09:04,582 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/bin-2019/uautomizer/../../sv-benchmarks/c/bitvector/modulus_true-unreach-call_true-no-overflow.i [2018-11-18 10:09:04,623 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/bin-2019/uautomizer/data/137dbb2d1/dbe44f06dec3433684788bf535c294a9/FLAG0f834cdc3 [2018-11-18 10:09:05,007 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:09:05,008 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/sv-benchmarks/c/bitvector/modulus_true-unreach-call_true-no-overflow.i [2018-11-18 10:09:05,011 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/bin-2019/uautomizer/data/137dbb2d1/dbe44f06dec3433684788bf535c294a9/FLAG0f834cdc3 [2018-11-18 10:09:05,019 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/bin-2019/uautomizer/data/137dbb2d1/dbe44f06dec3433684788bf535c294a9 [2018-11-18 10:09:05,021 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:09:05,022 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 10:09:05,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:09:05,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:09:05,025 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:09:05,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:09:05" (1/1) ... [2018-11-18 10:09:05,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68c4f020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:05, skipping insertion in model container [2018-11-18 10:09:05,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:09:05" (1/1) ... [2018-11-18 10:09:05,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:09:05,045 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:09:05,140 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:09:05,142 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:09:05,152 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:09:05,160 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:09:05,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:05 WrapperNode [2018-11-18 10:09:05,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:09:05,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:09:05,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:09:05,161 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:09:05,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:05" (1/1) ... [2018-11-18 10:09:05,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:05" (1/1) ... [2018-11-18 10:09:05,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:05" (1/1) ... [2018-11-18 10:09:05,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:05" (1/1) ... [2018-11-18 10:09:05,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:05" (1/1) ... [2018-11-18 10:09:05,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:05" (1/1) ... [2018-11-18 10:09:05,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:05" (1/1) ... [2018-11-18 10:09:05,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:09:05,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:09:05,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:09:05,183 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:09:05,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:09:05,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:09:05,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:09:05,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 10:09:05,263 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:09:05,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 10:09:05,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 10:09:05,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2018-11-18 10:09:05,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 10:09:05,264 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2018-11-18 10:09:05,264 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2018-11-18 10:09:05,264 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2018-11-18 10:09:05,264 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:09:05,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:09:05,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:09:05,380 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:09:05,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:09:05 BoogieIcfgContainer [2018-11-18 10:09:05,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:09:05,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:09:05,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:09:05,385 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:09:05,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:09:05" (1/3) ... [2018-11-18 10:09:05,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e682cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:09:05, skipping insertion in model container [2018-11-18 10:09:05,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:05" (2/3) ... [2018-11-18 10:09:05,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e682cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:09:05, skipping insertion in model container [2018-11-18 10:09:05,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:09:05" (3/3) ... [2018-11-18 10:09:05,388 INFO L112 eAbstractionObserver]: Analyzing ICFG modulus_true-unreach-call_true-no-overflow.i [2018-11-18 10:09:05,396 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:09:05,406 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:09:05,417 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:09:05,442 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:09:05,442 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:09:05,442 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:09:05,443 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:09:05,443 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:09:05,443 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:09:05,443 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:09:05,443 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:09:05,443 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:09:05,457 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-18 10:09:05,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 10:09:05,462 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:09:05,463 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:09:05,465 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:09:05,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:09:05,470 INFO L82 PathProgramCache]: Analyzing trace with hash 100671106, now seen corresponding path program 1 times [2018-11-18 10:09:05,471 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:09:05,472 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:09:05,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:09:05,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:09:05,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:09:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:05,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:05,551 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:09:05,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:09:05,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 10:09:05,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:09:05,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:09:05,563 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2018-11-18 10:09:05,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:09:05,577 INFO L93 Difference]: Finished difference Result 42 states and 54 transitions. [2018-11-18 10:09:05,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:09:05,578 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-11-18 10:09:05,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:09:05,582 INFO L225 Difference]: With dead ends: 42 [2018-11-18 10:09:05,582 INFO L226 Difference]: Without dead ends: 17 [2018-11-18 10:09:05,584 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:09:05,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-18 10:09:05,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-18 10:09:05,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-18 10:09:05,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-11-18 10:09:05,611 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2018-11-18 10:09:05,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:09:05,611 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-11-18 10:09:05,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 10:09:05,612 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-18 10:09:05,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 10:09:05,612 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:09:05,612 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:09:05,613 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:09:05,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:09:05,613 INFO L82 PathProgramCache]: Analyzing trace with hash 123107113, now seen corresponding path program 1 times [2018-11-18 10:09:05,613 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:09:05,613 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:09:05,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:09:05,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:09:05,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:09:05,623 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-18 10:09:05,623 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-18 10:09:05,623 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/bin-2019/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 [2018-11-18 10:09:05,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:09:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:05,659 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:09:05,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:05,877 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:09:05,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 10:09:05,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:09:05,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:09:05,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:09:05,879 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 6 states. [2018-11-18 10:09:05,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:09:05,945 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2018-11-18 10:09:05,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 10:09:05,946 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-18 10:09:05,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:09:05,947 INFO L225 Difference]: With dead ends: 26 [2018-11-18 10:09:05,948 INFO L226 Difference]: Without dead ends: 21 [2018-11-18 10:09:05,948 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:09:05,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-18 10:09:05,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2018-11-18 10:09:05,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-18 10:09:05,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2018-11-18 10:09:05,952 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 13 [2018-11-18 10:09:05,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:09:05,953 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2018-11-18 10:09:05,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:09:05,953 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-11-18 10:09:05,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 10:09:05,953 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:09:05,953 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:09:05,954 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:09:05,954 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:09:05,954 INFO L82 PathProgramCache]: Analyzing trace with hash 124954155, now seen corresponding path program 1 times [2018-11-18 10:09:05,954 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:09:05,954 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:09:05,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:09:05,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:09:05,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:09:05,961 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-18 10:09:05,961 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-18 10:09:05,961 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-18 10:09:05,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:09:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:05,983 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:09:06,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:06,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:09:06,105 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 10:09:06,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 10:09:06,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 10:09:06,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:09:06,105 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 7 states. [2018-11-18 10:09:06,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:09:06,141 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2018-11-18 10:09:06,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 10:09:06,141 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-18 10:09:06,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:09:06,142 INFO L225 Difference]: With dead ends: 25 [2018-11-18 10:09:06,142 INFO L226 Difference]: Without dead ends: 19 [2018-11-18 10:09:06,142 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-18 10:09:06,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-18 10:09:06,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-18 10:09:06,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 10:09:06,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-18 10:09:06,145 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 13 [2018-11-18 10:09:06,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:09:06,145 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-18 10:09:06,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 10:09:06,146 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-18 10:09:06,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 10:09:06,146 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:09:06,146 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:09:06,146 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:09:06,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:09:06,147 INFO L82 PathProgramCache]: Analyzing trace with hash 574491242, now seen corresponding path program 1 times [2018-11-18 10:09:06,147 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:09:06,147 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:09:06,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:09:06,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:09:06,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:09:06,154 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-18 10:09:06,155 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-18 10:09:06,155 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-18 10:09:06,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:09:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:06,176 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:09:06,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:06,212 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:09:06,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 10:09:06,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 10:09:06,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 10:09:06,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 10:09:06,213 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 4 states. [2018-11-18 10:09:06,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:09:06,234 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2018-11-18 10:09:06,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 10:09:06,234 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-11-18 10:09:06,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:09:06,235 INFO L225 Difference]: With dead ends: 32 [2018-11-18 10:09:06,235 INFO L226 Difference]: Without dead ends: 21 [2018-11-18 10:09:06,235 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:09:06,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-18 10:09:06,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-18 10:09:06,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-18 10:09:06,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-11-18 10:09:06,237 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 18 [2018-11-18 10:09:06,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:09:06,237 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-11-18 10:09:06,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 10:09:06,237 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-18 10:09:06,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 10:09:06,238 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:09:06,238 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:09:06,238 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:09:06,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:09:06,238 INFO L82 PathProgramCache]: Analyzing trace with hash 327394640, now seen corresponding path program 1 times [2018-11-18 10:09:06,238 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:09:06,238 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:09:06,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:09:06,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:09:06,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:09:06,245 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-18 10:09:06,245 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-18 10:09:06,245 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-18 10:09:06,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:09:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:06,263 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:09:06,405 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 10:09:06,421 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:09:06,421 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 10:09:06,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 10:09:06,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 10:09:06,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:09:06,422 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 7 states. [2018-11-18 10:09:06,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:09:06,453 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-11-18 10:09:06,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 10:09:06,453 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-18 10:09:06,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:09:06,454 INFO L225 Difference]: With dead ends: 26 [2018-11-18 10:09:06,454 INFO L226 Difference]: Without dead ends: 21 [2018-11-18 10:09:06,455 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 10:09:06,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-18 10:09:06,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-18 10:09:06,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-18 10:09:06,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-11-18 10:09:06,458 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 20 [2018-11-18 10:09:06,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:09:06,458 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2018-11-18 10:09:06,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 10:09:06,458 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-11-18 10:09:06,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 10:09:06,459 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:09:06,459 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:09:06,459 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:09:06,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:09:06,459 INFO L82 PathProgramCache]: Analyzing trace with hash 329241682, now seen corresponding path program 1 times [2018-11-18 10:09:06,460 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:09:06,460 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:09:06,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:09:06,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:09:06,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:09:06,467 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-18 10:09:06,467 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-18 10:09:06,467 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-18 10:09:06,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:09:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:06,514 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:09:07,699 WARN L180 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-18 10:09:08,291 WARN L180 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 10:09:08,892 WARN L180 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-18 10:09:10,122 WARN L180 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2018-11-18 10:09:10,173 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 10:09:10,187 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:09:10,187 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 10:09:10,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 10:09:10,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 10:09:10,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=46, Unknown=1, NotChecked=0, Total=72 [2018-11-18 10:09:10,188 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 9 states. [2018-11-18 10:09:11,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:09:11,409 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2018-11-18 10:09:11,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 10:09:11,409 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2018-11-18 10:09:11,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:09:11,410 INFO L225 Difference]: With dead ends: 21 [2018-11-18 10:09:11,410 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 10:09:11,410 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=29, Invalid=60, Unknown=1, NotChecked=0, Total=90 [2018-11-18 10:09:11,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 10:09:11,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 10:09:11,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 10:09:11,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 10:09:11,414 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2018-11-18 10:09:11,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:09:11,414 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:09:11,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 10:09:11,414 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 10:09:11,414 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 10:09:11,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 10:09:12,048 WARN L180 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-18 10:09:12,050 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 10:09:12,050 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:09:12,050 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:09:12,050 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 10:09:12,050 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:09:12,050 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:09:12,050 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 22 46) no Hoare annotation was computed. [2018-11-18 10:09:12,050 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 22 46) no Hoare annotation was computed. [2018-11-18 10:09:12,050 INFO L421 ceAbstractionStarter]: At program point L40-1(lines 40 42) the Hoare annotation is: (let ((.cse0 (mod main_~n~0 4294967296)) (.cse1 (mod main_~d~0 4294967296))) (or (and (<= .cse0 .cse1) (not (= .cse1 (mod main_~m~0 4294967296))) (= main_~n~0 main_~m~0)) (and (= main_~m~0 0) (= .cse1 .cse0) (< 0 .cse1)))) [2018-11-18 10:09:12,051 INFO L425 ceAbstractionStarter]: For program point L34-1(lines 34 37) no Hoare annotation was computed. [2018-11-18 10:09:12,051 INFO L425 ceAbstractionStarter]: For program point L32-1(lines 32 39) no Hoare annotation was computed. [2018-11-18 10:09:12,051 INFO L421 ceAbstractionStarter]: At program point L34-3(lines 34 37) the Hoare annotation is: (and (exists ((main_~n~0 Int)) (< (mod main_~d~0 4294967296) (mod main_~n~0 4294967296))) (< 0 (mod main_~d~0 4294967296))) [2018-11-18 10:09:12,051 INFO L425 ceAbstractionStarter]: For program point L30(lines 30 44) no Hoare annotation was computed. [2018-11-18 10:09:12,051 INFO L425 ceAbstractionStarter]: For program point L34-4(lines 34 37) no Hoare annotation was computed. [2018-11-18 10:09:12,051 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 22 46) the Hoare annotation is: true [2018-11-18 10:09:12,051 INFO L421 ceAbstractionStarter]: At program point L32-3(lines 32 39) the Hoare annotation is: (and (< 0 (mod main_~d~0 4294967296)) (= main_~n~0 main_~m~0)) [2018-11-18 10:09:12,051 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 30 44) no Hoare annotation was computed. [2018-11-18 10:09:12,051 INFO L425 ceAbstractionStarter]: For program point L32-4(lines 30 44) no Hoare annotation was computed. [2018-11-18 10:09:12,051 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2018-11-18 10:09:12,052 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2018-11-18 10:09:12,052 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 5 10) no Hoare annotation was computed. [2018-11-18 10:09:12,052 INFO L425 ceAbstractionStarter]: For program point L7(line 7) no Hoare annotation was computed. [2018-11-18 10:09:12,052 INFO L425 ceAbstractionStarter]: For program point L6(lines 6 8) no Hoare annotation was computed. [2018-11-18 10:09:12,052 INFO L425 ceAbstractionStarter]: For program point L6-2(lines 5 10) no Hoare annotation was computed. [2018-11-18 10:09:12,059 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~n~0,QUANTIFIED] [2018-11-18 10:09:12,060 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~n~0,QUANTIFIED] [2018-11-18 10:09:12,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:09:12 BoogieIcfgContainer [2018-11-18 10:09:12,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:09:12,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:09:12,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:09:12,061 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:09:12,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:09:05" (3/4) ... [2018-11-18 10:09:12,064 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 10:09:12,068 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 10:09:12,069 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 10:09:12,069 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-18 10:09:12,071 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-18 10:09:12,071 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 10:09:12,072 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 10:09:12,090 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists main_~n~0 : int :: d % 4294967296 < main_~n~0 % 4294967296) && 0 < d % 4294967296 [2018-11-18 10:09:12,102 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_eba99e1c-1399-419f-9c77-055262595274/bin-2019/uautomizer/witness.graphml [2018-11-18 10:09:12,102 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:09:12,103 INFO L168 Benchmark]: Toolchain (without parser) took 7081.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 959.3 MB in the beginning and 964.4 MB in the end (delta: -5.2 MB). Peak memory consumption was 155.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:09:12,103 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:09:12,103 INFO L168 Benchmark]: CACSL2BoogieTranslator took 138.82 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:09:12,104 INFO L168 Benchmark]: Boogie Preprocessor took 21.61 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:09:12,104 INFO L168 Benchmark]: RCFGBuilder took 198.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -195.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:09:12,105 INFO L168 Benchmark]: TraceAbstraction took 6678.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 967.7 MB in the end (delta: 173.8 MB). Peak memory consumption was 173.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:09:12,105 INFO L168 Benchmark]: Witness Printer took 40.76 ms. Allocated memory is still 1.2 GB. Free memory was 967.7 MB in the beginning and 964.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:09:12,107 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 138.82 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.61 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 198.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -195.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6678.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 967.7 MB in the end (delta: 173.8 MB). Peak memory consumption was 173.8 MB. Max. memory is 11.5 GB. * Witness Printer took 40.76 ms. Allocated memory is still 1.2 GB. Free memory was 967.7 MB in the beginning and 964.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~n~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 < d % 4294967296 && n == m - InvariantResult [Line: 34]: Loop Invariant [2018-11-18 10:09:12,111 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~n~0,QUANTIFIED] [2018-11-18 10:09:12,111 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~n~0,QUANTIFIED] Derived loop invariant: (\exists main_~n~0 : int :: d % 4294967296 < main_~n~0 % 4294967296) && 0 < d % 4294967296 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. SAFE Result, 6.6s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 99 SDtfs, 30 SDslu, 185 SDs, 0 SdLazy, 137 SolverSat, 3 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 13 PreInvPairs, 20 NumberOfFragments, 64 HoareAnnotationTreeSize, 13 FomulaSimplifications, 79 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 11 QuantifiedInterpolants, 7501 SizeOfPredicates, 15 NumberOfNonLiveVariables, 187 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 10/10 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...