./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/ludcmp_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/ludcmp_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a81eebddb84f05353da2fe57e839b2276721ce6a ......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/ludcmp_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a81eebddb84f05353da2fe57e839b2276721ce6a ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 10:12:59,337 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:12:59,337 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:12:59,344 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:12:59,344 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:12:59,344 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:12:59,345 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:12:59,346 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:12:59,347 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:12:59,347 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:12:59,348 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:12:59,348 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:12:59,349 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:12:59,349 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:12:59,350 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:12:59,350 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:12:59,351 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:12:59,352 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:12:59,353 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:12:59,354 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:12:59,354 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:12:59,355 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:12:59,356 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:12:59,356 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:12:59,356 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:12:59,357 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:12:59,358 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:12:59,358 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:12:59,358 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:12:59,359 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:12:59,359 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:12:59,360 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:12:59,360 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:12:59,360 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:12:59,360 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:12:59,361 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:12:59,361 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 10:12:59,368 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:12:59,369 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:12:59,369 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 10:12:59,369 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 10:12:59,369 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 10:12:59,370 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 10:12:59,370 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 10:12:59,370 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 10:12:59,370 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 10:12:59,370 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 10:12:59,370 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 10:12:59,370 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 10:12:59,370 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 10:12:59,371 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:12:59,371 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:12:59,371 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 10:12:59,371 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:12:59,371 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:12:59,372 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 10:12:59,372 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:12:59,372 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 10:12:59,372 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:12:59,372 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 10:12:59,372 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 10:12:59,372 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:12:59,372 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 10:12:59,373 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:12:59,373 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 10:12:59,373 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:12:59,373 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:12:59,373 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:12:59,373 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 10:12:59,373 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 10:12:59,373 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:12:59,374 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 10:12:59,374 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 10:12:59,374 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan 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 -> Taipan 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 -> a81eebddb84f05353da2fe57e839b2276721ce6a [2018-12-09 10:12:59,392 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:12:59,398 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:12:59,400 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:12:59,401 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:12:59,401 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:12:59,402 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/../../sv-benchmarks/c/loops/ludcmp_false-unreach-call.i [2018-12-09 10:12:59,435 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/data/79e8dc2e6/ef9a2399e35c4fb7b325c7d1695fd632/FLAG6739ea2cd [2018-12-09 10:12:59,841 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:12:59,841 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/sv-benchmarks/c/loops/ludcmp_false-unreach-call.i [2018-12-09 10:12:59,845 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/data/79e8dc2e6/ef9a2399e35c4fb7b325c7d1695fd632/FLAG6739ea2cd [2018-12-09 10:12:59,853 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/data/79e8dc2e6/ef9a2399e35c4fb7b325c7d1695fd632 [2018-12-09 10:12:59,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:12:59,855 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:12:59,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:12:59,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:12:59,858 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:12:59,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:12:59" (1/1) ... [2018-12-09 10:12:59,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ec9f2fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:59, skipping insertion in model container [2018-12-09 10:12:59,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:12:59" (1/1) ... [2018-12-09 10:12:59,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:12:59,879 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:12:59,987 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:13:00,045 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:13:00,067 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:13:00,184 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:13:00,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:00 WrapperNode [2018-12-09 10:13:00,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:13:00,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:13:00,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:13:00,185 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:13:00,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:00" (1/1) ... [2018-12-09 10:13:00,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:00" (1/1) ... [2018-12-09 10:13:00,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:13:00,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:13:00,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:13:00,219 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:13:00,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:00" (1/1) ... [2018-12-09 10:13:00,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:00" (1/1) ... [2018-12-09 10:13:00,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:00" (1/1) ... [2018-12-09 10:13:00,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:00" (1/1) ... [2018-12-09 10:13:00,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:00" (1/1) ... [2018-12-09 10:13:00,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:00" (1/1) ... [2018-12-09 10:13:00,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:00" (1/1) ... [2018-12-09 10:13:00,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:13:00,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:13:00,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:13:00,299 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:13:00,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/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 [2018-12-09 10:13:00,343 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2018-12-09 10:13:00,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2018-12-09 10:13:00,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 10:13:00,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 10:13:00,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 10:13:00,343 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2018-12-09 10:13:00,344 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2018-12-09 10:13:00,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 10:13:00,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 10:13:00,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:13:00,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:13:00,344 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 10:13:00,344 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 10:13:00,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-12-09 10:13:00,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 10:13:00,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 10:13:00,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 10:13:01,546 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:13:01,546 INFO L280 CfgBuilder]: Removed 11 assue(true) statements. [2018-12-09 10:13:01,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:13:01 BoogieIcfgContainer [2018-12-09 10:13:01,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:13:01,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 10:13:01,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 10:13:01,549 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 10:13:01,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:12:59" (1/3) ... [2018-12-09 10:13:01,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f084448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:13:01, skipping insertion in model container [2018-12-09 10:13:01,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:00" (2/3) ... [2018-12-09 10:13:01,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f084448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:13:01, skipping insertion in model container [2018-12-09 10:13:01,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:13:01" (3/3) ... [2018-12-09 10:13:01,551 INFO L112 eAbstractionObserver]: Analyzing ICFG ludcmp_false-unreach-call.i [2018-12-09 10:13:01,557 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 10:13:01,561 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 10:13:01,571 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 10:13:01,589 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 10:13:01,589 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 10:13:01,590 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 10:13:01,590 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 10:13:01,590 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 10:13:01,590 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 10:13:01,590 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 10:13:01,590 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 10:13:01,600 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-12-09 10:13:01,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 10:13:01,603 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:13:01,604 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:13:01,605 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:13:01,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:13:01,609 INFO L82 PathProgramCache]: Analyzing trace with hash 406725423, now seen corresponding path program 1 times [2018-12-09 10:13:01,610 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:13:01,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:13:01,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:13:01,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:13:01,640 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:13:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:13:01,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:13:01,916 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:13:01,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 10:13:01,917 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:13:01,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 10:13:01,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 10:13:01,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 10:13:01,930 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2018-12-09 10:13:01,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:13:01,949 INFO L93 Difference]: Finished difference Result 122 states and 178 transitions. [2018-12-09 10:13:01,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 10:13:01,950 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-12-09 10:13:01,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:13:01,954 INFO L225 Difference]: With dead ends: 122 [2018-12-09 10:13:01,954 INFO L226 Difference]: Without dead ends: 20 [2018-12-09 10:13:01,957 INFO L631 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 [2018-12-09 10:13:01,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-12-09 10:13:01,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-12-09 10:13:01,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-12-09 10:13:01,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-12-09 10:13:01,980 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 12 [2018-12-09 10:13:01,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:13:01,981 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-12-09 10:13:01,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 10:13:01,981 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-12-09 10:13:01,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 10:13:01,981 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:13:01,981 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:13:01,982 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:13:01,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:13:01,982 INFO L82 PathProgramCache]: Analyzing trace with hash 394719650, now seen corresponding path program 1 times [2018-12-09 10:13:01,982 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:13:01,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:13:01,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:13:01,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:13:01,983 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:13:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:13:02,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:13:02,192 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:13:02,192 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 10:13:02,192 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:13:02,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 10:13:02,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 10:13:02,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 10:13:02,194 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 4 states. [2018-12-09 10:13:02,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:13:02,215 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2018-12-09 10:13:02,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 10:13:02,216 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-12-09 10:13:02,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:13:02,216 INFO L225 Difference]: With dead ends: 38 [2018-12-09 10:13:02,217 INFO L226 Difference]: Without dead ends: 24 [2018-12-09 10:13:02,217 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 10:13:02,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-12-09 10:13:02,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2018-12-09 10:13:02,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-09 10:13:02,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-12-09 10:13:02,221 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 12 [2018-12-09 10:13:02,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:13:02,221 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-12-09 10:13:02,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 10:13:02,221 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-12-09 10:13:02,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 10:13:02,222 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:13:02,222 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:13:02,222 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:13:02,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:13:02,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1180233829, now seen corresponding path program 1 times [2018-12-09 10:13:02,222 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:13:02,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:13:02,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:13:02,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:13:02,223 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:13:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:13:02,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:13:02,363 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:13:02,363 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:13:02,364 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-12-09 10:13:02,365 INFO L205 CegarAbsIntRunner]: [141], [142], [155], [163], [169], [171], [176], [178], [180], [194], [197], [199], [207], [208], [209], [211] [2018-12-09 10:13:02,394 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:13:02,394 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:13:02,594 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.NumberFormatException: For input string: "1/1000000" at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.handleInfeasibleCase(BaseRefinementStrategy.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:206) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.NumberFormatException: For input string: "1/1000000" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) at java.lang.Integer.parseInt(Integer.java:580) at java.math.BigInteger.(BigInteger.java:470) at java.math.BigInteger.(BigInteger.java:606) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueStatementProcessor.lambda$0(ExplicitValueStatementProcessor.java:60) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.EvaluatorFactory.createSingletonValueExpressionEvaluator(EvaluatorFactory.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.visit(NonrelationalStatementProcessor.java:476) at de.uni_freiburg.informatik.ultimate.boogie.BoogieVisitor.processExpression(BoogieVisitor.java:377) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processExpression(NonrelationalStatementProcessor.java:221) at de.uni_freiburg.informatik.ultimate.boogie.BoogieTransformer.processExpression(BoogieTransformer.java:682) at de.uni_freiburg.informatik.ultimate.boogie.BoogieVisitor.processExpression(BoogieVisitor.java:391) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processExpression(NonrelationalStatementProcessor.java:221) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:411) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:194) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:176) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:145) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:373) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:364) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:127) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:536) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:220) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:379) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:380) ... 20 more [2018-12-09 10:13:02,596 INFO L168 Benchmark]: Toolchain (without parser) took 2741.42 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 318.2 MB). Free memory was 958.7 MB in the beginning and 1.2 GB in the end (delta: -206.3 MB). Peak memory consumption was 111.9 MB. Max. memory is 11.5 GB. [2018-12-09 10:13:02,597 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:13:02,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 958.7 MB in the beginning and 1.1 GB in the end (delta: -156.9 MB). Peak memory consumption was 45.7 MB. Max. memory is 11.5 GB. [2018-12-09 10:13:02,598 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.79 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-09 10:13:02,598 INFO L168 Benchmark]: Boogie Preprocessor took 79.71 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2018-12-09 10:13:02,599 INFO L168 Benchmark]: RCFGBuilder took 1247.78 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 80.7 MB). Free memory was 1.1 GB in the beginning and 910.7 MB in the end (delta: 177.6 MB). Peak memory consumption was 298.4 MB. Max. memory is 11.5 GB. [2018-12-09 10:13:02,599 INFO L168 Benchmark]: TraceAbstraction took 1049.07 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 99.1 MB). Free memory was 910.7 MB in the beginning and 1.2 GB in the end (delta: -254.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:13:02,601 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 328.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 958.7 MB in the beginning and 1.1 GB in the end (delta: -156.9 MB). Peak memory consumption was 45.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.79 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 79.71 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1247.78 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 80.7 MB). Free memory was 1.1 GB in the beginning and 910.7 MB in the end (delta: 177.6 MB). Peak memory consumption was 298.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1049.07 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 99.1 MB). Free memory was 910.7 MB in the beginning and 1.2 GB in the end (delta: -254.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.NumberFormatException: For input string: "1/1000000" de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.NumberFormatException: For input string: "1/1000000": de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 10:13:03,827 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:13:03,828 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:13:03,834 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:13:03,834 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:13:03,835 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:13:03,835 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:13:03,836 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:13:03,837 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:13:03,837 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:13:03,838 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:13:03,838 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:13:03,839 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:13:03,839 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:13:03,840 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:13:03,840 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:13:03,840 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:13:03,841 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:13:03,842 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:13:03,843 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:13:03,843 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:13:03,844 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:13:03,845 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:13:03,845 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:13:03,845 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:13:03,846 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:13:03,846 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:13:03,847 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:13:03,847 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:13:03,848 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:13:03,848 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:13:03,848 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:13:03,848 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:13:03,848 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:13:03,849 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:13:03,849 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:13:03,849 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 10:13:03,857 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:13:03,857 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:13:03,857 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 10:13:03,857 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 10:13:03,858 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 10:13:03,858 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 10:13:03,858 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 10:13:03,858 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 10:13:03,858 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 10:13:03,858 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 10:13:03,859 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:13:03,859 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:13:03,859 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:13:03,859 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:13:03,859 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 10:13:03,859 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:13:03,859 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 10:13:03,859 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 10:13:03,860 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 10:13:03,860 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:13:03,860 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 10:13:03,860 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 10:13:03,860 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 10:13:03,860 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:13:03,860 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 10:13:03,860 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:13:03,861 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 10:13:03,861 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:13:03,861 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:13:03,861 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:13:03,861 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 10:13:03,861 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 10:13:03,861 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:13:03,862 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 10:13:03,862 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 10:13:03,862 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_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan 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 -> Taipan 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 -> a81eebddb84f05353da2fe57e839b2276721ce6a [2018-12-09 10:13:03,879 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:13:03,886 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:13:03,888 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:13:03,889 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:13:03,889 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:13:03,890 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/../../sv-benchmarks/c/loops/ludcmp_false-unreach-call.i [2018-12-09 10:13:03,924 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/data/375d1baf5/c15556a1b9d74d12934e748584693c3f/FLAGbf69c9e9b [2018-12-09 10:13:04,352 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:13:04,352 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/sv-benchmarks/c/loops/ludcmp_false-unreach-call.i [2018-12-09 10:13:04,356 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/data/375d1baf5/c15556a1b9d74d12934e748584693c3f/FLAGbf69c9e9b [2018-12-09 10:13:04,364 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/data/375d1baf5/c15556a1b9d74d12934e748584693c3f [2018-12-09 10:13:04,366 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:13:04,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:13:04,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:13:04,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:13:04,369 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:13:04,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:13:04" (1/1) ... [2018-12-09 10:13:04,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49eb7855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:04, skipping insertion in model container [2018-12-09 10:13:04,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:13:04" (1/1) ... [2018-12-09 10:13:04,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:13:04,386 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:13:04,491 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:13:04,589 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:13:04,611 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:13:04,627 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:13:04,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:04 WrapperNode [2018-12-09 10:13:04,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:13:04,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:13:04,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:13:04,628 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:13:04,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:04" (1/1) ... [2018-12-09 10:13:04,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:04" (1/1) ... [2018-12-09 10:13:04,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:13:04,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:13:04,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:13:04,676 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:13:04,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:04" (1/1) ... [2018-12-09 10:13:04,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:04" (1/1) ... [2018-12-09 10:13:04,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:04" (1/1) ... [2018-12-09 10:13:04,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:04" (1/1) ... [2018-12-09 10:13:04,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:04" (1/1) ... [2018-12-09 10:13:04,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:04" (1/1) ... [2018-12-09 10:13:04,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:04" (1/1) ... [2018-12-09 10:13:04,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:13:04,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:13:04,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:13:04,703 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:13:04,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/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 [2018-12-09 10:13:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2018-12-09 10:13:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2018-12-09 10:13:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-09 10:13:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 10:13:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 10:13:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2018-12-09 10:13:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2018-12-09 10:13:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 10:13:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-09 10:13:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:13:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:13:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 10:13:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 10:13:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 10:13:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 10:13:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 10:13:07,112 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:13:09,776 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:13:11,859 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:13:11,870 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:13:12,853 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:13:14,907 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:13:15,719 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:13:15,778 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:13:15,852 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:13:15,867 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:13:15,867 INFO L280 CfgBuilder]: Removed 11 assue(true) statements. [2018-12-09 10:13:15,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:13:15 BoogieIcfgContainer [2018-12-09 10:13:15,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:13:15,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 10:13:15,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 10:13:15,870 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 10:13:15,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:13:04" (1/3) ... [2018-12-09 10:13:15,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b84a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:13:15, skipping insertion in model container [2018-12-09 10:13:15,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:04" (2/3) ... [2018-12-09 10:13:15,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b84a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:13:15, skipping insertion in model container [2018-12-09 10:13:15,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:13:15" (3/3) ... [2018-12-09 10:13:15,872 INFO L112 eAbstractionObserver]: Analyzing ICFG ludcmp_false-unreach-call.i [2018-12-09 10:13:15,878 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 10:13:15,883 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 10:13:15,892 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 10:13:15,909 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 10:13:15,909 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 10:13:15,909 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 10:13:15,910 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 10:13:15,910 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 10:13:15,910 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 10:13:15,910 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 10:13:15,910 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 10:13:15,910 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 10:13:15,920 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-12-09 10:13:15,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 10:13:15,923 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:13:15,924 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:13:15,925 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:13:15,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:13:15,929 INFO L82 PathProgramCache]: Analyzing trace with hash 406725423, now seen corresponding path program 1 times [2018-12-09 10:13:15,932 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 10:13:15,932 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 10:13:15,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:13:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:13:15,975 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:13:15,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:13:15,985 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 10:13:15,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:13:15,994 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 10:13:15,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 10:13:16,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 10:13:16,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 10:13:16,005 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2018-12-09 10:13:16,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:13:16,024 INFO L93 Difference]: Finished difference Result 122 states and 178 transitions. [2018-12-09 10:13:16,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 10:13:16,025 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-12-09 10:13:16,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:13:16,030 INFO L225 Difference]: With dead ends: 122 [2018-12-09 10:13:16,030 INFO L226 Difference]: Without dead ends: 20 [2018-12-09 10:13:16,033 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 10:13:16,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-12-09 10:13:16,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-12-09 10:13:16,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-12-09 10:13:16,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-12-09 10:13:16,056 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 12 [2018-12-09 10:13:16,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:13:16,056 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-12-09 10:13:16,056 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 10:13:16,056 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-12-09 10:13:16,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 10:13:16,057 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:13:16,057 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:13:16,057 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:13:16,058 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:13:16,058 INFO L82 PathProgramCache]: Analyzing trace with hash 394719650, now seen corresponding path program 1 times [2018-12-09 10:13:16,058 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 10:13:16,058 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 10:13:16,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:13:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:13:16,084 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:13:16,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:13:16,106 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 10:13:16,113 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:13:16,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 10:13:16,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 10:13:16,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 10:13:16,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 10:13:16,115 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 4 states. [2018-12-09 10:13:16,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:13:16,506 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2018-12-09 10:13:16,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 10:13:16,507 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-12-09 10:13:16,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:13:16,507 INFO L225 Difference]: With dead ends: 38 [2018-12-09 10:13:16,508 INFO L226 Difference]: Without dead ends: 24 [2018-12-09 10:13:16,509 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 10:13:16,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-12-09 10:13:16,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2018-12-09 10:13:16,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-09 10:13:16,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-12-09 10:13:16,514 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 12 [2018-12-09 10:13:16,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:13:16,514 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-12-09 10:13:16,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 10:13:16,514 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-12-09 10:13:16,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 10:13:16,515 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:13:16,515 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:13:16,515 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:13:16,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:13:16,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1180233829, now seen corresponding path program 1 times [2018-12-09 10:13:16,516 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 10:13:16,516 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-09 10:13:16,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:13:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:13:16,613 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:13:16,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:13:16,625 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 10:13:16,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:13:16,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 10:13:16,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 10:13:16,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 10:13:16,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 10:13:16,636 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 4 states. [2018-12-09 10:13:17,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:13:17,357 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2018-12-09 10:13:17,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 10:13:17,359 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-12-09 10:13:17,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:13:17,361 INFO L225 Difference]: With dead ends: 48 [2018-12-09 10:13:17,361 INFO L226 Difference]: Without dead ends: 33 [2018-12-09 10:13:17,361 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 10:13:17,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-12-09 10:13:17,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 24. [2018-12-09 10:13:17,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-09 10:13:17,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2018-12-09 10:13:17,368 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 16 [2018-12-09 10:13:17,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:13:17,368 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2018-12-09 10:13:17,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 10:13:17,368 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-12-09 10:13:17,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 10:13:17,369 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:13:17,369 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:13:17,369 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:13:17,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:13:17,370 INFO L82 PathProgramCache]: Analyzing trace with hash -370887203, now seen corresponding path program 1 times [2018-12-09 10:13:17,370 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 10:13:17,370 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 10:13:17,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:13:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:13:17,529 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:13:17,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:13:17,548 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 10:13:17,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:13:17,593 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:13:17,593 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 10:13:17,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:13:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:13:17,682 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:13:17,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:13:17,684 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 10:13:17,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:13:17,710 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-09 10:13:17,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 8 [2018-12-09 10:13:17,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 10:13:17,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 10:13:17,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-09 10:13:17,711 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 8 states. [2018-12-09 10:13:18,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:13:18,648 INFO L93 Difference]: Finished difference Result 51 states and 61 transitions. [2018-12-09 10:13:18,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 10:13:18,649 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-12-09 10:13:18,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:13:18,649 INFO L225 Difference]: With dead ends: 51 [2018-12-09 10:13:18,650 INFO L226 Difference]: Without dead ends: 36 [2018-12-09 10:13:18,650 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2018-12-09 10:13:18,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-09 10:13:18,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-12-09 10:13:18,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-09 10:13:18,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2018-12-09 10:13:18,657 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 16 [2018-12-09 10:13:18,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:13:18,657 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2018-12-09 10:13:18,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 10:13:18,657 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2018-12-09 10:13:18,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 10:13:18,658 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:13:18,658 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:13:18,658 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:13:18,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:13:18,659 INFO L82 PathProgramCache]: Analyzing trace with hash -479010360, now seen corresponding path program 1 times [2018-12-09 10:13:18,659 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 10:13:18,659 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-12-09 10:13:18,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:13:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:13:19,030 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:13:19,093 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:13:19,093 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 10:13:19,184 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:13:19,196 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:13:19,196 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 10:13:19,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:13:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:13:19,432 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:13:19,438 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:13:19,438 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 10:13:19,446 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:13:19,478 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-09 10:13:19,478 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8] total 14 [2018-12-09 10:13:19,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-09 10:13:19,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-09 10:13:19,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2018-12-09 10:13:19,479 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 14 states. [2018-12-09 10:13:21,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:13:21,983 INFO L93 Difference]: Finished difference Result 71 states and 85 transitions. [2018-12-09 10:13:21,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 10:13:21,984 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 28 [2018-12-09 10:13:21,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:13:21,985 INFO L225 Difference]: With dead ends: 71 [2018-12-09 10:13:21,985 INFO L226 Difference]: Without dead ends: 44 [2018-12-09 10:13:21,985 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2018-12-09 10:13:21,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-09 10:13:21,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-12-09 10:13:21,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-09 10:13:21,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2018-12-09 10:13:21,990 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 28 [2018-12-09 10:13:21,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:13:21,990 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2018-12-09 10:13:21,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-09 10:13:21,991 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2018-12-09 10:13:21,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-09 10:13:21,991 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:13:21,991 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:13:21,992 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:13:21,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:13:21,992 INFO L82 PathProgramCache]: Analyzing trace with hash -850791622, now seen corresponding path program 2 times [2018-12-09 10:13:21,992 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 10:13:21,992 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-12-09 10:13:21,996 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-09 10:13:22,582 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-09 10:13:22,582 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 10:13:22,646 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:13:22,690 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-12-09 10:13:22,694 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2018-12-09 10:13:22,694 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 10:13:22,698 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:13:23,078 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 10:13:23,078 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:44, output treesize:40 [2018-12-09 10:13:23,464 WARN L180 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-12-09 10:13:23,580 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-12-09 10:13:23,580 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 10:13:23,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:13:23,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 10:13:23,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 10:13:23,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 10:13:23,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-09 10:13:23,597 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 6 states. [2018-12-09 10:13:23,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:13:23,670 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2018-12-09 10:13:23,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 10:13:23,681 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2018-12-09 10:13:23,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:13:23,681 INFO L225 Difference]: With dead ends: 44 [2018-12-09 10:13:23,681 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 10:13:23,682 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-09 10:13:23,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 10:13:23,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 10:13:23,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 10:13:23,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 10:13:23,682 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2018-12-09 10:13:23,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:13:23,682 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 10:13:23,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 10:13:23,682 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 10:13:23,682 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 10:13:23,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 10:13:23,767 INFO L448 ceAbstractionStarter]: For program point L44-2(lines 44 62) no Hoare annotation was computed. [2018-12-09 10:13:23,767 INFO L451 ceAbstractionStarter]: At program point L44-3(lines 44 62) the Hoare annotation is: true [2018-12-09 10:13:23,768 INFO L448 ceAbstractionStarter]: For program point L44-4(lines 44 62) no Hoare annotation was computed. [2018-12-09 10:13:23,768 INFO L448 ceAbstractionStarter]: For program point ludcmpEXIT(lines 39 80) no Hoare annotation was computed. [2018-12-09 10:13:23,768 INFO L451 ceAbstractionStarter]: At program point L46(line 46) the Hoare annotation is: true [2018-12-09 10:13:23,768 INFO L448 ceAbstractionStarter]: For program point L46-1(line 46) no Hoare annotation was computed. [2018-12-09 10:13:23,768 INFO L451 ceAbstractionStarter]: At program point ludcmpENTRY(lines 39 80) the Hoare annotation is: true [2018-12-09 10:13:23,768 INFO L448 ceAbstractionStarter]: For program point L55-2(lines 55 61) no Hoare annotation was computed. [2018-12-09 10:13:23,768 INFO L451 ceAbstractionStarter]: At program point L55-3(lines 55 61) the Hoare annotation is: true [2018-12-09 10:13:23,768 INFO L448 ceAbstractionStarter]: For program point L47-2(lines 47 54) no Hoare annotation was computed. [2018-12-09 10:13:23,768 INFO L451 ceAbstractionStarter]: At program point L47-3(lines 47 54) the Hoare annotation is: true [2018-12-09 10:13:23,768 INFO L448 ceAbstractionStarter]: For program point L47-4(lines 47 54) no Hoare annotation was computed. [2018-12-09 10:13:23,768 INFO L448 ceAbstractionStarter]: For program point ludcmpFINAL(lines 39 80) no Hoare annotation was computed. [2018-12-09 10:13:23,768 INFO L448 ceAbstractionStarter]: For program point L72-2(lines 72 78) no Hoare annotation was computed. [2018-12-09 10:13:23,768 INFO L451 ceAbstractionStarter]: At program point L72-3(lines 72 78) the Hoare annotation is: true [2018-12-09 10:13:23,768 INFO L448 ceAbstractionStarter]: For program point L72-4(lines 72 78) no Hoare annotation was computed. [2018-12-09 10:13:23,768 INFO L448 ceAbstractionStarter]: For program point L64-2(lines 64 70) no Hoare annotation was computed. [2018-12-09 10:13:23,768 INFO L451 ceAbstractionStarter]: At program point L64-3(lines 64 70) the Hoare annotation is: true [2018-12-09 10:13:23,768 INFO L448 ceAbstractionStarter]: For program point L64-4(lines 64 70) no Hoare annotation was computed. [2018-12-09 10:13:23,768 INFO L448 ceAbstractionStarter]: For program point L58-2(lines 58 59) no Hoare annotation was computed. [2018-12-09 10:13:23,768 INFO L451 ceAbstractionStarter]: At program point L58-3(lines 58 59) the Hoare annotation is: true [2018-12-09 10:13:23,768 INFO L448 ceAbstractionStarter]: For program point L58-4(lines 58 59) no Hoare annotation was computed. [2018-12-09 10:13:23,768 INFO L448 ceAbstractionStarter]: For program point L50(lines 50 52) no Hoare annotation was computed. [2018-12-09 10:13:23,769 INFO L448 ceAbstractionStarter]: For program point L50-1(lines 50 52) no Hoare annotation was computed. [2018-12-09 10:13:23,769 INFO L448 ceAbstractionStarter]: For program point L75-2(lines 75 76) no Hoare annotation was computed. [2018-12-09 10:13:23,769 INFO L451 ceAbstractionStarter]: At program point L75-3(lines 75 76) the Hoare annotation is: true [2018-12-09 10:13:23,769 INFO L448 ceAbstractionStarter]: For program point L75-4(lines 75 76) no Hoare annotation was computed. [2018-12-09 10:13:23,769 INFO L448 ceAbstractionStarter]: For program point L67-2(lines 67 68) no Hoare annotation was computed. [2018-12-09 10:13:23,769 INFO L451 ceAbstractionStarter]: At program point L67-3(lines 67 68) the Hoare annotation is: true [2018-12-09 10:13:23,769 INFO L448 ceAbstractionStarter]: For program point L67-4(lines 67 68) no Hoare annotation was computed. [2018-12-09 10:13:23,769 INFO L448 ceAbstractionStarter]: For program point L51-2(lines 51 52) no Hoare annotation was computed. [2018-12-09 10:13:23,769 INFO L451 ceAbstractionStarter]: At program point L51-3(lines 51 52) the Hoare annotation is: true [2018-12-09 10:13:23,769 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-12-09 10:13:23,769 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 10:13:23,769 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 10:13:23,769 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 10:13:23,769 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2018-12-09 10:13:23,769 INFO L448 ceAbstractionStarter]: For program point L14-2(lines 14 15) no Hoare annotation was computed. [2018-12-09 10:13:23,769 INFO L448 ceAbstractionStarter]: For program point fabsEXIT(lines 11 17) no Hoare annotation was computed. [2018-12-09 10:13:23,769 INFO L451 ceAbstractionStarter]: At program point fabsENTRY(lines 11 17) the Hoare annotation is: true [2018-12-09 10:13:23,769 INFO L448 ceAbstractionStarter]: For program point fabsFINAL(lines 11 17) no Hoare annotation was computed. [2018-12-09 10:13:23,769 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 10:13:23,769 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= (_ bv0 32) |~#a~0.offset|) [2018-12-09 10:13:23,770 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 10:13:23,770 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 10:13:23,770 INFO L448 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-12-09 10:13:23,770 INFO L448 ceAbstractionStarter]: For program point L29-2(line 29) no Hoare annotation was computed. [2018-12-09 10:13:23,770 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 18 38) no Hoare annotation was computed. [2018-12-09 10:13:23,770 INFO L448 ceAbstractionStarter]: For program point L23-2(lines 23 34) no Hoare annotation was computed. [2018-12-09 10:13:23,770 INFO L444 ceAbstractionStarter]: At program point L23-3(lines 23 34) the Hoare annotation is: (or (not (= |~#a~0.offset| (_ bv0 32))) (and (= (bvadd main_~n~0 (_ bv4294967291 32)) (_ bv0 32)) (= main_~i~0 (_ bv0 32)))) [2018-12-09 10:13:23,770 INFO L451 ceAbstractionStarter]: At program point L23-4(lines 23 34) the Hoare annotation is: true [2018-12-09 10:13:23,770 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 18 38) no Hoare annotation was computed. [2018-12-09 10:13:23,770 INFO L448 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-12-09 10:13:23,770 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 18 38) the Hoare annotation is: true [2018-12-09 10:13:23,770 INFO L448 ceAbstractionStarter]: For program point L26-2(lines 26 31) no Hoare annotation was computed. [2018-12-09 10:13:23,770 INFO L444 ceAbstractionStarter]: At program point L26-3(lines 26 31) the Hoare annotation is: (or (not (= |~#a~0.offset| (_ bv0 32))) (and (= main_~j~0 (_ bv0 32)) (= (bvadd main_~n~0 (_ bv4294967291 32)) (_ bv0 32)) (= main_~i~0 (_ bv0 32)))) [2018-12-09 10:13:23,770 INFO L444 ceAbstractionStarter]: At program point L26-4(lines 26 31) the Hoare annotation is: (not (= |~#a~0.offset| (_ bv0 32))) [2018-12-09 10:13:23,770 INFO L448 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2018-12-09 10:13:23,770 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-12-09 10:13:23,770 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-12-09 10:13:23,770 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-12-09 10:13:23,770 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-12-09 10:13:23,770 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-12-09 10:13:23,771 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-12-09 10:13:23,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:13:23 BoogieIcfgContainer [2018-12-09 10:13:23,779 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 10:13:23,779 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 10:13:23,779 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 10:13:23,779 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 10:13:23,779 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:13:15" (3/4) ... [2018-12-09 10:13:23,782 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 10:13:23,786 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ludcmp [2018-12-09 10:13:23,786 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 10:13:23,786 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs [2018-12-09 10:13:23,786 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 10:13:23,786 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-09 10:13:23,789 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2018-12-09 10:13:23,789 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-12-09 10:13:23,790 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 10:13:23,790 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 10:13:23,822 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_644f06e4-8ecf-4e84-b9aa-c113fe0a4765/bin-2019/utaipan/witness.graphml [2018-12-09 10:13:23,822 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 10:13:23,822 INFO L168 Benchmark]: Toolchain (without parser) took 19456.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 944.7 MB in the beginning and 860.9 MB in the end (delta: 83.8 MB). Peak memory consumption was 230.6 MB. Max. memory is 11.5 GB. [2018-12-09 10:13:23,823 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:13:23,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.61 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 901.8 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-12-09 10:13:23,823 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 901.8 MB in the beginning and 1.1 GB in the end (delta: -233.7 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-12-09 10:13:23,823 INFO L168 Benchmark]: Boogie Preprocessor took 27.31 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-09 10:13:23,824 INFO L168 Benchmark]: RCFGBuilder took 11164.54 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: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. [2018-12-09 10:13:23,824 INFO L168 Benchmark]: TraceAbstraction took 7910.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 867.5 MB in the end (delta: 215.7 MB). Peak memory consumption was 215.7 MB. Max. memory is 11.5 GB. [2018-12-09 10:13:23,824 INFO L168 Benchmark]: Witness Printer took 42.98 ms. Allocated memory is still 1.2 GB. Free memory was 867.5 MB in the beginning and 860.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-09 10:13:23,825 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 260.61 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 901.8 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 901.8 MB in the beginning and 1.1 GB in the end (delta: -233.7 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.31 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 11164.54 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: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7910.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 867.5 MB in the end (delta: 215.7 MB). Peak memory consumption was 215.7 MB. Max. memory is 11.5 GB. * Witness Printer took 42.98 ms. Allocated memory is still 1.2 GB. Free memory was 867.5 MB in the beginning and 860.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 47]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: !(a == 0bv32) || ((j == 0bv32 && ~bvadd64(n, 4294967291bv32) == 0bv32) && i == 0bv32) - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: !(a == 0bv32) || (~bvadd64(n, 4294967291bv32) == 0bv32 && i == 0bv32) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 64 locations, 1 error locations. SAFE Result, 7.8s OverallTime, 6 OverallIterations, 6 TraceHistogramMax, 4.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 145 SDtfs, 155 SDslu, 170 SDs, 0 SdLazy, 249 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 247 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred 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, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 38 PreInvPairs, 51 NumberOfFragments, 55 HoareAnnotationTreeSize, 38 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 240 ConstructedInterpolants, 1 QuantifiedInterpolants, 22706 SizeOfPredicates, 17 NumberOfNonLiveVariables, 630 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 67/183 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...