./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/lu.cmp_true-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_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/lu.cmp_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/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 329fe1d7b64fa92ea293b849994df7355375c757 .................................................................................................................................................................................................................................................................................................................................................................................................... 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_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/lu.cmp_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/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 329fe1d7b64fa92ea293b849994df7355375c757 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 18:03:57,308 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 18:03:57,309 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 18:03:57,314 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 18:03:57,315 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 18:03:57,315 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 18:03:57,316 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 18:03:57,316 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 18:03:57,317 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 18:03:57,318 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 18:03:57,318 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 18:03:57,318 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 18:03:57,318 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 18:03:57,319 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 18:03:57,319 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 18:03:57,320 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 18:03:57,320 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 18:03:57,321 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 18:03:57,322 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 18:03:57,322 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 18:03:57,323 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 18:03:57,323 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 18:03:57,324 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 18:03:57,325 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 18:03:57,325 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 18:03:57,325 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 18:03:57,326 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 18:03:57,326 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 18:03:57,326 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 18:03:57,327 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 18:03:57,327 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 18:03:57,327 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 18:03:57,327 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 18:03:57,327 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 18:03:57,328 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 18:03:57,328 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 18:03:57,328 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 18:03:57,335 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 18:03:57,336 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 18:03:57,336 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 18:03:57,336 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 18:03:57,336 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 18:03:57,336 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 18:03:57,336 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 18:03:57,336 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 18:03:57,336 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 18:03:57,337 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 18:03:57,337 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 18:03:57,337 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 18:03:57,337 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 18:03:57,337 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 18:03:57,337 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 18:03:57,337 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 18:03:57,337 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 18:03:57,337 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 18:03:57,338 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 18:03:57,338 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 18:03:57,338 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 18:03:57,338 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 18:03:57,338 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 18:03:57,338 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 18:03:57,338 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 18:03:57,338 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 18:03:57,338 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 18:03:57,338 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 18:03:57,338 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:03:57,338 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 18:03:57,338 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 18:03:57,339 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 18:03:57,339 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 18:03:57,339 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 18:03:57,339 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 18:03:57,339 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 18:03:57,339 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_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/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 -> 329fe1d7b64fa92ea293b849994df7355375c757 [2018-12-09 18:03:57,355 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 18:03:57,362 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 18:03:57,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 18:03:57,365 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 18:03:57,365 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 18:03:57,365 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/../../sv-benchmarks/c/loops/lu.cmp_true-unreach-call.i [2018-12-09 18:03:57,399 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/data/2052cc9bc/ad2f0bcc96e5490792097f865dff8030/FLAGf544567fe [2018-12-09 18:03:57,802 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 18:03:57,802 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/sv-benchmarks/c/loops/lu.cmp_true-unreach-call.i [2018-12-09 18:03:57,806 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/data/2052cc9bc/ad2f0bcc96e5490792097f865dff8030/FLAGf544567fe [2018-12-09 18:03:57,815 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/data/2052cc9bc/ad2f0bcc96e5490792097f865dff8030 [2018-12-09 18:03:57,816 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 18:03:57,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 18:03:57,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 18:03:57,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 18:03:57,820 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 18:03:57,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:03:57" (1/1) ... [2018-12-09 18:03:57,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7a2c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:03:57, skipping insertion in model container [2018-12-09 18:03:57,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:03:57" (1/1) ... [2018-12-09 18:03:57,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 18:03:57,837 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 18:03:57,940 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:03:57,993 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 18:03:58,011 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:03:58,113 INFO L195 MainTranslator]: Completed translation [2018-12-09 18:03:58,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:03:58 WrapperNode [2018-12-09 18:03:58,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 18:03:58,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 18:03:58,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 18:03:58,114 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 18:03:58,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:03:58" (1/1) ... [2018-12-09 18:03:58,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:03:58" (1/1) ... [2018-12-09 18:03:58,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 18:03:58,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 18:03:58,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 18:03:58,153 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 18:03:58,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:03:58" (1/1) ... [2018-12-09 18:03:58,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:03:58" (1/1) ... [2018-12-09 18:03:58,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:03:58" (1/1) ... [2018-12-09 18:03:58,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:03:58" (1/1) ... [2018-12-09 18:03:58,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:03:58" (1/1) ... [2018-12-09 18:03:58,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:03:58" (1/1) ... [2018-12-09 18:03:58,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:03:58" (1/1) ... [2018-12-09 18:03:58,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 18:03:58,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 18:03:58,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 18:03:58,254 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 18:03:58,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:03:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/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 18:03:58,286 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2018-12-09 18:03:58,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2018-12-09 18:03:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 18:03:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 18:03:58,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 18:03:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2018-12-09 18:03:58,287 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2018-12-09 18:03:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 18:03:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 18:03:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 18:03:58,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 18:03:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 18:03:58,287 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 18:03:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-12-09 18:03:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 18:03:58,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 18:03:58,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 18:03:59,497 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 18:03:59,497 INFO L280 CfgBuilder]: Removed 11 assue(true) statements. [2018-12-09 18:03:59,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:03:59 BoogieIcfgContainer [2018-12-09 18:03:59,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 18:03:59,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 18:03:59,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 18:03:59,500 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 18:03:59,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:03:57" (1/3) ... [2018-12-09 18:03:59,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba33a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:03:59, skipping insertion in model container [2018-12-09 18:03:59,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:03:58" (2/3) ... [2018-12-09 18:03:59,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba33a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:03:59, skipping insertion in model container [2018-12-09 18:03:59,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:03:59" (3/3) ... [2018-12-09 18:03:59,502 INFO L112 eAbstractionObserver]: Analyzing ICFG lu.cmp_true-unreach-call.i [2018-12-09 18:03:59,508 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 18:03:59,513 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 18:03:59,522 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 18:03:59,540 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 18:03:59,540 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 18:03:59,540 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 18:03:59,540 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 18:03:59,541 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 18:03:59,541 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 18:03:59,541 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 18:03:59,541 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 18:03:59,551 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-12-09 18:03:59,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 18:03:59,555 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:03:59,555 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:03:59,557 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:03:59,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:03:59,560 INFO L82 PathProgramCache]: Analyzing trace with hash 406725423, now seen corresponding path program 1 times [2018-12-09 18:03:59,561 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:03:59,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:03:59,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:03:59,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:03:59,590 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:03:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:03:59,861 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 18:03:59,862 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:03:59,862 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 18:03:59,862 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:03:59,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 18:03:59,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 18:03:59,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 18:03:59,875 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2018-12-09 18:03:59,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:03:59,893 INFO L93 Difference]: Finished difference Result 122 states and 178 transitions. [2018-12-09 18:03:59,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 18:03:59,894 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-12-09 18:03:59,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:03:59,899 INFO L225 Difference]: With dead ends: 122 [2018-12-09 18:03:59,899 INFO L226 Difference]: Without dead ends: 20 [2018-12-09 18:03:59,901 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 18:03:59,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-12-09 18:03:59,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-12-09 18:03:59,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-12-09 18:03:59,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-12-09 18:03:59,924 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 12 [2018-12-09 18:03:59,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:03:59,924 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-12-09 18:03:59,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 18:03:59,924 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-12-09 18:03:59,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 18:03:59,925 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:03:59,925 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:03:59,925 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:03:59,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:03:59,926 INFO L82 PathProgramCache]: Analyzing trace with hash 394719650, now seen corresponding path program 1 times [2018-12-09 18:03:59,926 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:03:59,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:03:59,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:03:59,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:03:59,927 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:03:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:04:00,097 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 18:04:00,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:04:00,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 18:04:00,098 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:04:00,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 18:04:00,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 18:04:00,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 18:04:00,100 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 4 states. [2018-12-09 18:04:00,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:04:00,126 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2018-12-09 18:04:00,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 18:04:00,126 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-12-09 18:04:00,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:04:00,127 INFO L225 Difference]: With dead ends: 38 [2018-12-09 18:04:00,127 INFO L226 Difference]: Without dead ends: 24 [2018-12-09 18:04:00,128 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 18:04:00,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-12-09 18:04:00,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2018-12-09 18:04:00,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-09 18:04:00,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-12-09 18:04:00,150 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 12 [2018-12-09 18:04:00,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:04:00,150 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-12-09 18:04:00,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 18:04:00,151 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-12-09 18:04:00,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 18:04:00,151 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:04:00,151 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:04:00,151 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:04:00,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:04:00,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1180233829, now seen corresponding path program 1 times [2018-12-09 18:04:00,153 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:04:00,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:04:00,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:04:00,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:04:00,154 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:04:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:04:00,323 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 18:04:00,323 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:04:00,324 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:04:00,324 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-12-09 18:04:00,326 INFO L205 CegarAbsIntRunner]: [141], [142], [155], [163], [169], [171], [176], [178], [180], [194], [197], [199], [207], [208], [209], [211] [2018-12-09 18:04:00,364 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:04:00,364 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:04:00,579 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 18:04:00,582 INFO L168 Benchmark]: Toolchain (without parser) took 2764.83 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 324.5 MB). Free memory was 950.8 MB in the beginning and 1.2 GB in the end (delta: -241.5 MB). Peak memory consumption was 83.0 MB. Max. memory is 11.5 GB. [2018-12-09 18:04:00,583 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:04:00,583 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -174.1 MB). Peak memory consumption was 46.2 MB. Max. memory is 11.5 GB. [2018-12-09 18:04:00,584 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.17 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-09 18:04:00,584 INFO L168 Benchmark]: Boogie Preprocessor took 100.12 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: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2018-12-09 18:04:00,585 INFO L168 Benchmark]: RCFGBuilder took 1243.72 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 80.2 MB). Free memory was 1.1 GB in the beginning and 926.1 MB in the end (delta: 170.9 MB). Peak memory consumption was 301.3 MB. Max. memory is 11.5 GB. [2018-12-09 18:04:00,586 INFO L168 Benchmark]: TraceAbstraction took 1083.19 ms. Allocated memory was 1.3 GB in the beginning and 1.4 GB in the end (delta: 92.8 MB). Free memory was 926.1 MB in the beginning and 1.2 GB in the end (delta: -266.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:04:00,589 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 295.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -174.1 MB). Peak memory consumption was 46.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.17 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 100.12 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: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1243.72 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 80.2 MB). Free memory was 1.1 GB in the beginning and 926.1 MB in the end (delta: 170.9 MB). Peak memory consumption was 301.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1083.19 ms. Allocated memory was 1.3 GB in the beginning and 1.4 GB in the end (delta: 92.8 MB). Free memory was 926.1 MB in the beginning and 1.2 GB in the end (delta: -266.2 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 18:04:01,934 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 18:04:01,936 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 18:04:01,942 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 18:04:01,942 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 18:04:01,943 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 18:04:01,943 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 18:04:01,944 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 18:04:01,945 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 18:04:01,946 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 18:04:01,947 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 18:04:01,947 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 18:04:01,947 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 18:04:01,948 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 18:04:01,949 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 18:04:01,949 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 18:04:01,950 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 18:04:01,951 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 18:04:01,952 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 18:04:01,953 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 18:04:01,954 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 18:04:01,955 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 18:04:01,957 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 18:04:01,957 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 18:04:01,957 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 18:04:01,958 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 18:04:01,959 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 18:04:01,959 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 18:04:01,960 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 18:04:01,960 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 18:04:01,961 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 18:04:01,961 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 18:04:01,961 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 18:04:01,961 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 18:04:01,962 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 18:04:01,962 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 18:04:01,962 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 18:04:01,973 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 18:04:01,973 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 18:04:01,973 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 18:04:01,974 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 18:04:01,974 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 18:04:01,974 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 18:04:01,974 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 18:04:01,974 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 18:04:01,974 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 18:04:01,974 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 18:04:01,975 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 18:04:01,975 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 18:04:01,975 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 18:04:01,975 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 18:04:01,975 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 18:04:01,975 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 18:04:01,975 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 18:04:01,976 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 18:04:01,976 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 18:04:01,976 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 18:04:01,976 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 18:04:01,976 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 18:04:01,976 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 18:04:01,976 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 18:04:01,976 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 18:04:01,976 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 18:04:01,977 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 18:04:01,977 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:04:01,977 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 18:04:01,977 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 18:04:01,977 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 18:04:01,977 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 18:04:01,977 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 18:04:01,977 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 18:04:01,977 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 18:04:01,977 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_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/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 -> 329fe1d7b64fa92ea293b849994df7355375c757 [2018-12-09 18:04:02,001 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 18:04:02,011 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 18:04:02,014 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 18:04:02,015 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 18:04:02,015 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 18:04:02,016 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/../../sv-benchmarks/c/loops/lu.cmp_true-unreach-call.i [2018-12-09 18:04:02,057 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/data/474dee4ff/401613f94f3e4e8ca8cd3b5c2c25e00f/FLAG6efd6aba2 [2018-12-09 18:04:02,457 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 18:04:02,458 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/sv-benchmarks/c/loops/lu.cmp_true-unreach-call.i [2018-12-09 18:04:02,462 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/data/474dee4ff/401613f94f3e4e8ca8cd3b5c2c25e00f/FLAG6efd6aba2 [2018-12-09 18:04:02,470 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/data/474dee4ff/401613f94f3e4e8ca8cd3b5c2c25e00f [2018-12-09 18:04:02,471 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 18:04:02,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 18:04:02,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 18:04:02,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 18:04:02,475 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 18:04:02,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:04:02" (1/1) ... [2018-12-09 18:04:02,477 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 06:04:02, skipping insertion in model container [2018-12-09 18:04:02,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:04:02" (1/1) ... [2018-12-09 18:04:02,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 18:04:02,493 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 18:04:02,612 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:04:02,723 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 18:04:02,743 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:04:02,758 INFO L195 MainTranslator]: Completed translation [2018-12-09 18:04:02,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:04:02 WrapperNode [2018-12-09 18:04:02,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 18:04:02,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 18:04:02,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 18:04:02,759 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 18:04:02,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:04:02" (1/1) ... [2018-12-09 18:04:02,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:04:02" (1/1) ... [2018-12-09 18:04:02,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 18:04:02,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 18:04:02,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 18:04:02,808 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 18:04:02,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:04:02" (1/1) ... [2018-12-09 18:04:02,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:04:02" (1/1) ... [2018-12-09 18:04:02,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:04:02" (1/1) ... [2018-12-09 18:04:02,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:04:02" (1/1) ... [2018-12-09 18:04:02,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:04:02" (1/1) ... [2018-12-09 18:04:02,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:04:02" (1/1) ... [2018-12-09 18:04:02,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:04:02" (1/1) ... [2018-12-09 18:04:02,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 18:04:02,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 18:04:02,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 18:04:02,839 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 18:04:02,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:04:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/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 18:04:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2018-12-09 18:04:02,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2018-12-09 18:04:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-09 18:04:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 18:04:02,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 18:04:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2018-12-09 18:04:02,870 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2018-12-09 18:04:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 18:04:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-09 18:04:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 18:04:02,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 18:04:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 18:04:02,870 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 18:04:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 18:04:02,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 18:04:02,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 18:04:05,228 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:04:08,315 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:04:08,945 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:04:08,956 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:04:11,014 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:04:13,074 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:04:14,176 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:04:14,226 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:04:14,287 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:04:14,297 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 18:04:14,297 INFO L280 CfgBuilder]: Removed 11 assue(true) statements. [2018-12-09 18:04:14,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:04:14 BoogieIcfgContainer [2018-12-09 18:04:14,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 18:04:14,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 18:04:14,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 18:04:14,300 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 18:04:14,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:04:02" (1/3) ... [2018-12-09 18:04:14,301 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 06:04:14, skipping insertion in model container [2018-12-09 18:04:14,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:04:02" (2/3) ... [2018-12-09 18:04:14,301 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 06:04:14, skipping insertion in model container [2018-12-09 18:04:14,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:04:14" (3/3) ... [2018-12-09 18:04:14,302 INFO L112 eAbstractionObserver]: Analyzing ICFG lu.cmp_true-unreach-call.i [2018-12-09 18:04:14,307 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 18:04:14,312 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 18:04:14,320 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 18:04:14,338 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 18:04:14,338 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 18:04:14,338 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 18:04:14,338 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 18:04:14,338 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 18:04:14,338 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 18:04:14,338 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 18:04:14,338 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 18:04:14,339 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 18:04:14,348 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-12-09 18:04:14,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 18:04:14,352 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:04:14,352 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:04:14,354 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:04:14,356 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:04:14,357 INFO L82 PathProgramCache]: Analyzing trace with hash 406725423, now seen corresponding path program 1 times [2018-12-09 18:04:14,359 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 18:04:14,360 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/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 18:04:14,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:04:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:04:14,406 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:04:14,416 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 18:04:14,416 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 18:04:14,425 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:04:14,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 18:04:14,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 18:04:14,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 18:04:14,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 18:04:14,436 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2018-12-09 18:04:14,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:04:14,452 INFO L93 Difference]: Finished difference Result 122 states and 178 transitions. [2018-12-09 18:04:14,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 18:04:14,453 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-12-09 18:04:14,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:04:14,458 INFO L225 Difference]: With dead ends: 122 [2018-12-09 18:04:14,458 INFO L226 Difference]: Without dead ends: 20 [2018-12-09 18:04:14,460 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 18:04:14,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-12-09 18:04:14,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-12-09 18:04:14,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-12-09 18:04:14,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-12-09 18:04:14,481 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 12 [2018-12-09 18:04:14,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:04:14,481 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-12-09 18:04:14,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 18:04:14,481 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-12-09 18:04:14,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 18:04:14,482 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:04:14,482 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:04:14,482 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:04:14,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:04:14,482 INFO L82 PathProgramCache]: Analyzing trace with hash 394719650, now seen corresponding path program 1 times [2018-12-09 18:04:14,483 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 18:04:14,483 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/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 18:04:14,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:04:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:04:14,510 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:04:14,529 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 18:04:14,529 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 18:04:14,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:04:14,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 18:04:14,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 18:04:14,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 18:04:14,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 18:04:14,537 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 4 states. [2018-12-09 18:04:15,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:04:15,139 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2018-12-09 18:04:15,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 18:04:15,140 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-12-09 18:04:15,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:04:15,140 INFO L225 Difference]: With dead ends: 38 [2018-12-09 18:04:15,140 INFO L226 Difference]: Without dead ends: 24 [2018-12-09 18:04:15,141 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 18:04:15,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-12-09 18:04:15,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2018-12-09 18:04:15,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-09 18:04:15,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-12-09 18:04:15,144 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 12 [2018-12-09 18:04:15,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:04:15,145 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-12-09 18:04:15,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 18:04:15,145 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-12-09 18:04:15,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 18:04:15,145 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:04:15,145 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:04:15,145 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:04:15,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:04:15,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1180233829, now seen corresponding path program 1 times [2018-12-09 18:04:15,146 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 18:04:15,146 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/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 18:04:15,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:04:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:04:15,242 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:04:15,252 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 18:04:15,252 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 18:04:15,260 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:04:15,260 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 18:04:15,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 18:04:15,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 18:04:15,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 18:04:15,261 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 4 states. [2018-12-09 18:04:15,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:04:15,998 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2018-12-09 18:04:15,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 18:04:15,999 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-12-09 18:04:15,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:04:16,001 INFO L225 Difference]: With dead ends: 48 [2018-12-09 18:04:16,001 INFO L226 Difference]: Without dead ends: 33 [2018-12-09 18:04:16,001 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 18:04:16,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-12-09 18:04:16,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 24. [2018-12-09 18:04:16,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-09 18:04:16,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2018-12-09 18:04:16,007 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 16 [2018-12-09 18:04:16,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:04:16,007 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2018-12-09 18:04:16,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 18:04:16,007 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-12-09 18:04:16,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 18:04:16,007 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:04:16,007 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:04:16,007 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:04:16,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:04:16,008 INFO L82 PathProgramCache]: Analyzing trace with hash -370887203, now seen corresponding path program 1 times [2018-12-09 18:04:16,008 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 18:04:16,008 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/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 18:04:16,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:04:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:04:16,168 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:04:16,183 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 18:04:16,183 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:04:16,216 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 18:04:16,226 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:04:16,226 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/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 18:04:16,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:04:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:04:16,315 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:04:16,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 18:04:16,346 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 18:04:16,366 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 18:04:16,366 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 11 [2018-12-09 18:04:16,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 18:04:16,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 18:04:16,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-12-09 18:04:16,367 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 11 states. [2018-12-09 18:04:17,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:04:17,950 INFO L93 Difference]: Finished difference Result 73 states and 91 transitions. [2018-12-09 18:04:17,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-09 18:04:17,951 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 16 [2018-12-09 18:04:17,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:04:17,952 INFO L225 Difference]: With dead ends: 73 [2018-12-09 18:04:17,953 INFO L226 Difference]: Without dead ends: 58 [2018-12-09 18:04:17,953 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2018-12-09 18:04:17,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-12-09 18:04:17,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2018-12-09 18:04:17,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-12-09 18:04:17,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2018-12-09 18:04:17,959 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 16 [2018-12-09 18:04:17,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:04:17,959 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2018-12-09 18:04:17,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 18:04:17,959 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2018-12-09 18:04:17,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-09 18:04:17,960 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:04:17,960 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:04:17,960 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:04:17,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:04:17,961 INFO L82 PathProgramCache]: Analyzing trace with hash 192379017, now seen corresponding path program 1 times [2018-12-09 18:04:17,961 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 18:04:17,961 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/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 18:04:17,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:04:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:04:18,660 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:04:18,719 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 74 proven. 28 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-12-09 18:04:18,719 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:04:18,830 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 76 proven. 28 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-12-09 18:04:18,847 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:04:18,847 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/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 18:04:18,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:04:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:04:19,286 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:04:19,348 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 66 proven. 29 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-12-09 18:04:19,349 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:04:19,389 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 66 proven. 29 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-12-09 18:04:19,431 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-09 18:04:19,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 6, 6] total 20 [2018-12-09 18:04:19,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-12-09 18:04:19,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-12-09 18:04:19,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2018-12-09 18:04:19,432 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. Second operand 20 states. [2018-12-09 18:04:24,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:04:24,842 INFO L93 Difference]: Finished difference Result 165 states and 202 transitions. [2018-12-09 18:04:24,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-09 18:04:24,843 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 53 [2018-12-09 18:04:24,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:04:24,844 INFO L225 Difference]: With dead ends: 165 [2018-12-09 18:04:24,844 INFO L226 Difference]: Without dead ends: 118 [2018-12-09 18:04:24,844 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=282, Invalid=1200, Unknown=0, NotChecked=0, Total=1482 [2018-12-09 18:04:24,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-12-09 18:04:24,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 100. [2018-12-09 18:04:24,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-12-09 18:04:24,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 111 transitions. [2018-12-09 18:04:24,852 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 111 transitions. Word has length 53 [2018-12-09 18:04:24,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:04:24,852 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 111 transitions. [2018-12-09 18:04:24,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-12-09 18:04:24,852 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 111 transitions. [2018-12-09 18:04:24,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-12-09 18:04:24,853 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:04:24,853 INFO L402 BasicCegarLoop]: trace histogram [12, 12, 12, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:04:24,853 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:04:24,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:04:24,854 INFO L82 PathProgramCache]: Analyzing trace with hash -618561525, now seen corresponding path program 2 times [2018-12-09 18:04:24,854 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 18:04:24,854 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/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 18:04:24,857 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-09 18:04:24,885 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-12-09 18:04:24,886 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 18:04:24,888 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:04:24,911 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 2 proven. 158 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2018-12-09 18:04:24,911 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:04:24,968 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:04:24,968 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 18:04:24,974 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-09 18:04:24,987 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-12-09 18:04:24,987 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 18:04:24,989 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:04:24,996 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 2 proven. 158 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2018-12-09 18:04:24,997 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:04:25,017 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 18:04:25,018 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-12-09 18:04:25,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 18:04:25,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 18:04:25,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-12-09 18:04:25,019 INFO L87 Difference]: Start difference. First operand 100 states and 111 transitions. Second operand 6 states. [2018-12-09 18:04:25,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:04:25,280 INFO L93 Difference]: Finished difference Result 100 states and 111 transitions. [2018-12-09 18:04:25,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 18:04:25,281 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2018-12-09 18:04:25,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:04:25,281 INFO L225 Difference]: With dead ends: 100 [2018-12-09 18:04:25,281 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 18:04:25,281 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-12-09 18:04:25,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 18:04:25,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 18:04:25,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 18:04:25,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 18:04:25,282 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2018-12-09 18:04:25,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:04:25,282 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 18:04:25,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 18:04:25,282 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 18:04:25,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 18:04:25,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 18:04:25,360 INFO L448 ceAbstractionStarter]: For program point L44-2(lines 44 62) no Hoare annotation was computed. [2018-12-09 18:04:25,360 INFO L451 ceAbstractionStarter]: At program point L44-3(lines 44 62) the Hoare annotation is: true [2018-12-09 18:04:25,360 INFO L448 ceAbstractionStarter]: For program point L44-4(lines 44 62) no Hoare annotation was computed. [2018-12-09 18:04:25,361 INFO L448 ceAbstractionStarter]: For program point ludcmpEXIT(lines 39 80) no Hoare annotation was computed. [2018-12-09 18:04:25,361 INFO L451 ceAbstractionStarter]: At program point L46(line 46) the Hoare annotation is: true [2018-12-09 18:04:25,361 INFO L448 ceAbstractionStarter]: For program point L46-1(line 46) no Hoare annotation was computed. [2018-12-09 18:04:25,361 INFO L451 ceAbstractionStarter]: At program point ludcmpENTRY(lines 39 80) the Hoare annotation is: true [2018-12-09 18:04:25,361 INFO L448 ceAbstractionStarter]: For program point L55-2(lines 55 61) no Hoare annotation was computed. [2018-12-09 18:04:25,361 INFO L451 ceAbstractionStarter]: At program point L55-3(lines 55 61) the Hoare annotation is: true [2018-12-09 18:04:25,361 INFO L448 ceAbstractionStarter]: For program point L47-2(lines 47 54) no Hoare annotation was computed. [2018-12-09 18:04:25,361 INFO L451 ceAbstractionStarter]: At program point L47-3(lines 47 54) the Hoare annotation is: true [2018-12-09 18:04:25,361 INFO L448 ceAbstractionStarter]: For program point L47-4(lines 47 54) no Hoare annotation was computed. [2018-12-09 18:04:25,361 INFO L448 ceAbstractionStarter]: For program point ludcmpFINAL(lines 39 80) no Hoare annotation was computed. [2018-12-09 18:04:25,361 INFO L448 ceAbstractionStarter]: For program point L72-2(lines 72 78) no Hoare annotation was computed. [2018-12-09 18:04:25,361 INFO L451 ceAbstractionStarter]: At program point L72-3(lines 72 78) the Hoare annotation is: true [2018-12-09 18:04:25,362 INFO L448 ceAbstractionStarter]: For program point L72-4(lines 72 78) no Hoare annotation was computed. [2018-12-09 18:04:25,362 INFO L448 ceAbstractionStarter]: For program point L64-2(lines 64 70) no Hoare annotation was computed. [2018-12-09 18:04:25,362 INFO L451 ceAbstractionStarter]: At program point L64-3(lines 64 70) the Hoare annotation is: true [2018-12-09 18:04:25,362 INFO L448 ceAbstractionStarter]: For program point L64-4(lines 64 70) no Hoare annotation was computed. [2018-12-09 18:04:25,362 INFO L448 ceAbstractionStarter]: For program point L58-2(lines 58 59) no Hoare annotation was computed. [2018-12-09 18:04:25,362 INFO L451 ceAbstractionStarter]: At program point L58-3(lines 58 59) the Hoare annotation is: true [2018-12-09 18:04:25,362 INFO L448 ceAbstractionStarter]: For program point L58-4(lines 58 59) no Hoare annotation was computed. [2018-12-09 18:04:25,362 INFO L448 ceAbstractionStarter]: For program point L50(lines 50 52) no Hoare annotation was computed. [2018-12-09 18:04:25,362 INFO L448 ceAbstractionStarter]: For program point L50-1(lines 50 52) no Hoare annotation was computed. [2018-12-09 18:04:25,362 INFO L448 ceAbstractionStarter]: For program point L75-2(lines 75 76) no Hoare annotation was computed. [2018-12-09 18:04:25,362 INFO L451 ceAbstractionStarter]: At program point L75-3(lines 75 76) the Hoare annotation is: true [2018-12-09 18:04:25,363 INFO L448 ceAbstractionStarter]: For program point L75-4(lines 75 76) no Hoare annotation was computed. [2018-12-09 18:04:25,363 INFO L448 ceAbstractionStarter]: For program point L67-2(lines 67 68) no Hoare annotation was computed. [2018-12-09 18:04:25,363 INFO L451 ceAbstractionStarter]: At program point L67-3(lines 67 68) the Hoare annotation is: true [2018-12-09 18:04:25,363 INFO L448 ceAbstractionStarter]: For program point L67-4(lines 67 68) no Hoare annotation was computed. [2018-12-09 18:04:25,363 INFO L448 ceAbstractionStarter]: For program point L51-2(lines 51 52) no Hoare annotation was computed. [2018-12-09 18:04:25,363 INFO L451 ceAbstractionStarter]: At program point L51-3(lines 51 52) the Hoare annotation is: true [2018-12-09 18:04:25,363 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-12-09 18:04:25,363 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 18:04:25,363 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 18:04:25,363 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 18:04:25,364 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2018-12-09 18:04:25,364 INFO L448 ceAbstractionStarter]: For program point L14-2(lines 14 15) no Hoare annotation was computed. [2018-12-09 18:04:25,364 INFO L448 ceAbstractionStarter]: For program point fabsEXIT(lines 11 17) no Hoare annotation was computed. [2018-12-09 18:04:25,364 INFO L451 ceAbstractionStarter]: At program point fabsENTRY(lines 11 17) the Hoare annotation is: true [2018-12-09 18:04:25,364 INFO L448 ceAbstractionStarter]: For program point fabsFINAL(lines 11 17) no Hoare annotation was computed. [2018-12-09 18:04:25,364 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 18:04:25,364 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 18:04:25,364 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 18:04:25,364 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 18:04:25,365 INFO L448 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-12-09 18:04:25,365 INFO L448 ceAbstractionStarter]: For program point L29-2(line 29) no Hoare annotation was computed. [2018-12-09 18:04:25,365 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 18 38) no Hoare annotation was computed. [2018-12-09 18:04:25,365 INFO L448 ceAbstractionStarter]: For program point L23-2(lines 23 34) no Hoare annotation was computed. [2018-12-09 18:04:25,365 INFO L444 ceAbstractionStarter]: At program point L23-3(lines 23 34) the Hoare annotation is: (= (bvadd main_~n~0 (_ bv4294967291 32)) (_ bv0 32)) [2018-12-09 18:04:25,365 INFO L451 ceAbstractionStarter]: At program point L23-4(lines 23 34) the Hoare annotation is: true [2018-12-09 18:04:25,365 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 18 38) no Hoare annotation was computed. [2018-12-09 18:04:25,365 INFO L448 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-12-09 18:04:25,365 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 18 38) the Hoare annotation is: true [2018-12-09 18:04:25,365 INFO L448 ceAbstractionStarter]: For program point L26-2(lines 26 31) no Hoare annotation was computed. [2018-12-09 18:04:25,366 INFO L444 ceAbstractionStarter]: At program point L26-3(lines 26 31) the Hoare annotation is: (and (bvsle main_~i~0 (_ bv5 32)) (= (bvadd main_~n~0 (_ bv4294967291 32)) (_ bv0 32))) [2018-12-09 18:04:25,366 INFO L444 ceAbstractionStarter]: At program point L26-4(lines 26 31) the Hoare annotation is: (and (bvsle main_~i~0 (_ bv5 32)) (= (bvadd main_~n~0 (_ bv4294967291 32)) (_ bv0 32))) [2018-12-09 18:04:25,366 INFO L448 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2018-12-09 18:04:25,366 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-12-09 18:04:25,366 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-12-09 18:04:25,366 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-12-09 18:04:25,366 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-12-09 18:04:25,366 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-12-09 18:04:25,367 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-12-09 18:04:25,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:04:25 BoogieIcfgContainer [2018-12-09 18:04:25,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 18:04:25,378 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 18:04:25,378 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 18:04:25,378 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 18:04:25,378 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:04:14" (3/4) ... [2018-12-09 18:04:25,381 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 18:04:25,387 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ludcmp [2018-12-09 18:04:25,387 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 18:04:25,387 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs [2018-12-09 18:04:25,388 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 18:04:25,388 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-09 18:04:25,392 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2018-12-09 18:04:25,392 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-12-09 18:04:25,392 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 18:04:25,392 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 18:04:25,429 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a1e2cbc8-470e-468c-b8a7-6375b51b71b0/bin-2019/utaipan/witness.graphml [2018-12-09 18:04:25,429 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 18:04:25,429 INFO L168 Benchmark]: Toolchain (without parser) took 22957.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -124.5 MB). Peak memory consumption was 78.9 MB. Max. memory is 11.5 GB. [2018-12-09 18:04:25,430 INFO L168 Benchmark]: CDTParser took 0.17 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 18:04:25,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.89 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 18:04:25,430 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 901.8 MB in the beginning and 1.1 GB in the end (delta: -230.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-12-09 18:04:25,430 INFO L168 Benchmark]: Boogie Preprocessor took 30.87 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 18:04:25,431 INFO L168 Benchmark]: RCFGBuilder took 11459.16 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: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. [2018-12-09 18:04:25,431 INFO L168 Benchmark]: TraceAbstraction took 11078.83 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.3 MB). Peak memory consumption was 71.1 MB. Max. memory is 11.5 GB. [2018-12-09 18:04:25,431 INFO L168 Benchmark]: Witness Printer took 51.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:04:25,432 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 285.89 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 48.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 901.8 MB in the beginning and 1.1 GB in the end (delta: -230.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.87 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 11459.16 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: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11078.83 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.3 MB). Peak memory consumption was 71.1 MB. Max. memory is 11.5 GB. * Witness Printer took 51.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: ~bvsle32(i, 5bv32) && ~bvadd64(n, 4294967291bv32) == 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: ~bvadd64(n, 4294967291bv32) == 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, 11.0s OverallTime, 6 OverallIterations, 12 TraceHistogramMax, 8.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 145 SDtfs, 317 SDslu, 274 SDs, 0 SdLazy, 738 SolverSat, 111 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 524 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=5, 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, 32 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 40 PreInvPairs, 77 NumberOfFragments, 41 HoareAnnotationTreeSize, 40 FomulaSimplifications, 797 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 316 NumberOfCodeBlocks, 202 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 426 ConstructedInterpolants, 0 QuantifiedInterpolants, 68044 SizeOfPredicates, 18 NumberOfNonLiveVariables, 733 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 690/1122 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...