./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/ludcmp_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/ludcmp_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a81eebddb84f05353da2fe57e839b2276721ce6a .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/ludcmp_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a81eebddb84f05353da2fe57e839b2276721ce6a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:00:38,568 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:00:38,570 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:00:38,578 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:00:38,578 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:00:38,579 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:00:38,580 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:00:38,581 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:00:38,582 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:00:38,583 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:00:38,583 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:00:38,584 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:00:38,584 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:00:38,585 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:00:38,585 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:00:38,586 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:00:38,586 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:00:38,588 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:00:38,589 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:00:38,590 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:00:38,591 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:00:38,592 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:00:38,594 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:00:38,594 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:00:38,594 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:00:38,595 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:00:38,595 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:00:38,596 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:00:38,596 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:00:38,597 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:00:38,597 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:00:38,598 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:00:38,598 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:00:38,598 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:00:38,598 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:00:38,599 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:00:38,599 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:00:38,613 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:00:38,613 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:00:38,613 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:00:38,614 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:00:38,614 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:00:38,614 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:00:38,615 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:00:38,615 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:00:38,615 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:00:38,615 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:00:38,615 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:00:38,615 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:00:38,616 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:00:38,616 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:00:38,616 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:00:38,616 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:00:38,616 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:00:38,616 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:00:38,616 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:00:38,618 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:00:38,618 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:00:38,618 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:00:38,618 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:00:38,618 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:00:38,619 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:00:38,619 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:00:38,619 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:00:38,619 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:00:38,619 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:00:38,619 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:00:38,619 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_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a81eebddb84f05353da2fe57e839b2276721ce6a [2018-11-28 12:00:38,644 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:00:38,654 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:00:38,656 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:00:38,659 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:00:38,660 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:00:38,660 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/../../sv-benchmarks/c/loops/ludcmp_false-unreach-call.i [2018-11-28 12:00:38,704 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/data/052b494ce/01cad2f3e2de48a5b945c7ce529f0f13/FLAG9fd904393 [2018-11-28 12:00:39,053 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:00:39,054 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/sv-benchmarks/c/loops/ludcmp_false-unreach-call.i [2018-11-28 12:00:39,060 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/data/052b494ce/01cad2f3e2de48a5b945c7ce529f0f13/FLAG9fd904393 [2018-11-28 12:00:39,475 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/data/052b494ce/01cad2f3e2de48a5b945c7ce529f0f13 [2018-11-28 12:00:39,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:00:39,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:00:39,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:00:39,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:00:39,481 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:00:39,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:00:39" (1/1) ... [2018-11-28 12:00:39,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713ec98b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:39, skipping insertion in model container [2018-11-28 12:00:39,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:00:39" (1/1) ... [2018-11-28 12:00:39,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:00:39,502 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:00:39,627 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:00:39,702 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:00:39,727 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:00:39,869 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:00:39,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:39 WrapperNode [2018-11-28 12:00:39,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:00:39,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:00:39,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:00:39,870 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:00:39,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:39" (1/1) ... [2018-11-28 12:00:39,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:39" (1/1) ... [2018-11-28 12:00:39,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:00:39,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:00:39,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:00:39,918 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:00:39,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:39" (1/1) ... [2018-11-28 12:00:39,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:39" (1/1) ... [2018-11-28 12:00:39,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:39" (1/1) ... [2018-11-28 12:00:39,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:39" (1/1) ... [2018-11-28 12:00:39,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:39" (1/1) ... [2018-11-28 12:00:39,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:39" (1/1) ... [2018-11-28 12:00:40,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:39" (1/1) ... [2018-11-28 12:00:40,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:00:40,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:00:40,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:00:40,015 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:00:40,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:00:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2018-11-28 12:00:40,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2018-11-28 12:00:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 12:00:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:00:40,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:00:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2018-11-28 12:00:40,054 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2018-11-28 12:00:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 12:00:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:00:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:00:40,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:00:40,055 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:00:40,055 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:00:40,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-11-28 12:00:40,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 12:00:40,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 12:00:40,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:00:41,594 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:00:41,595 INFO L280 CfgBuilder]: Removed 11 assue(true) statements. [2018-11-28 12:00:41,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:00:41 BoogieIcfgContainer [2018-11-28 12:00:41,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:00:41,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:00:41,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:00:41,599 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:00:41,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:00:39" (1/3) ... [2018-11-28 12:00:41,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7763c4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:00:41, skipping insertion in model container [2018-11-28 12:00:41,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:39" (2/3) ... [2018-11-28 12:00:41,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7763c4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:00:41, skipping insertion in model container [2018-11-28 12:00:41,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:00:41" (3/3) ... [2018-11-28 12:00:41,602 INFO L112 eAbstractionObserver]: Analyzing ICFG ludcmp_false-unreach-call.i [2018-11-28 12:00:41,609 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:00:41,615 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:00:41,627 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:00:41,652 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:00:41,652 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:00:41,652 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:00:41,652 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:00:41,652 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:00:41,653 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:00:41,653 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:00:41,653 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:00:41,653 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:00:41,666 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-11-28 12:00:41,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 12:00:41,669 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:00:41,670 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:00:41,671 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:00:41,675 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:00:41,675 INFO L82 PathProgramCache]: Analyzing trace with hash 406725423, now seen corresponding path program 1 times [2018-11-28 12:00:41,676 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:00:41,676 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:00:41,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:00:41,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:00:41,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:00:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:00:42,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:00:42,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:00:42,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:00:42,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:00:42,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:00:42,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:00:42,118 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2018-11-28 12:00:42,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:00:42,141 INFO L93 Difference]: Finished difference Result 122 states and 178 transitions. [2018-11-28 12:00:42,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:00:42,143 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-11-28 12:00:42,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:00:42,150 INFO L225 Difference]: With dead ends: 122 [2018-11-28 12:00:42,150 INFO L226 Difference]: Without dead ends: 20 [2018-11-28 12:00:42,153 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 [2018-11-28 12:00:42,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-28 12:00:42,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-28 12:00:42,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-28 12:00:42,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-28 12:00:42,186 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 12 [2018-11-28 12:00:42,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:00:42,187 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-28 12:00:42,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:00:42,187 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-28 12:00:42,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 12:00:42,187 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:00:42,188 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:00:42,188 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:00:42,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:00:42,188 INFO L82 PathProgramCache]: Analyzing trace with hash 394719650, now seen corresponding path program 1 times [2018-11-28 12:00:42,188 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:00:42,188 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:00:42,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:00:42,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:00:42,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:00:42,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:00:42,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:00:42,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:00:42,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:00:42,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:00:42,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:00:42,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:00:42,436 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 4 states. [2018-11-28 12:00:42,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:00:42,467 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2018-11-28 12:00:42,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:00:42,468 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-28 12:00:42,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:00:42,469 INFO L225 Difference]: With dead ends: 38 [2018-11-28 12:00:42,469 INFO L226 Difference]: Without dead ends: 24 [2018-11-28 12:00:42,470 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 [2018-11-28 12:00:42,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-28 12:00:42,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2018-11-28 12:00:42,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-28 12:00:42,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-11-28 12:00:42,474 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 12 [2018-11-28 12:00:42,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:00:42,474 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-11-28 12:00:42,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:00:42,474 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-28 12:00:42,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 12:00:42,475 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:00:42,475 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:00:42,475 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:00:42,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:00:42,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1180233829, now seen corresponding path program 1 times [2018-11-28 12:00:42,475 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:00:42,476 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:00:42,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:00:42,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:00:42,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:00:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:00:42,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:00:42,696 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:00:42,697 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:00:42,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:00:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:00:43,309 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:00:43,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:00:43,363 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:00:43,363 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-11-28 12:00:43,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:00:43,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:00:43,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:00:43,364 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 7 states. [2018-11-28 12:00:43,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:00:43,398 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2018-11-28 12:00:43,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:00:43,398 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2018-11-28 12:00:43,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:00:43,399 INFO L225 Difference]: With dead ends: 43 [2018-11-28 12:00:43,399 INFO L226 Difference]: Without dead ends: 28 [2018-11-28 12:00:43,399 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:00:43,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-28 12:00:43,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2018-11-28 12:00:43,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-28 12:00:43,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2018-11-28 12:00:43,403 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 16 [2018-11-28 12:00:43,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:00:43,403 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2018-11-28 12:00:43,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:00:43,403 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2018-11-28 12:00:43,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 12:00:43,404 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:00:43,404 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:00:43,404 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:00:43,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:00:43,404 INFO L82 PathProgramCache]: Analyzing trace with hash -232421100, now seen corresponding path program 2 times [2018-11-28 12:00:43,404 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:00:43,405 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:00:43,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:00:43,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:00:43,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:00:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:00:43,625 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:00:43,625 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:00:43,626 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:00:43,640 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 12:00:44,487 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 12:00:44,488 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:00:44,503 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:00:44,566 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:00:44,590 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:00:44,590 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-11-28 12:00:44,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 12:00:44,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 12:00:44,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:00:44,591 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 9 states. [2018-11-28 12:00:44,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:00:44,630 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2018-11-28 12:00:44,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:00:44,630 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2018-11-28 12:00:44,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:00:44,631 INFO L225 Difference]: With dead ends: 51 [2018-11-28 12:00:44,631 INFO L226 Difference]: Without dead ends: 32 [2018-11-28 12:00:44,631 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:00:44,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-28 12:00:44,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2018-11-28 12:00:44,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-28 12:00:44,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2018-11-28 12:00:44,635 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 20 [2018-11-28 12:00:44,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:00:44,635 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2018-11-28 12:00:44,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 12:00:44,635 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2018-11-28 12:00:44,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 12:00:44,636 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:00:44,636 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:00:44,636 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:00:44,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:00:44,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1802018317, now seen corresponding path program 3 times [2018-11-28 12:00:44,636 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:00:44,636 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:00:44,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:00:44,637 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:00:44,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:00:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:00:44,890 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:00:44,890 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:00:44,890 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:00:44,904 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 12:00:46,530 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-28 12:00:46,530 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:00:46,555 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:00:46,570 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-28 12:00:46,595 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 12:00:46,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2018-11-28 12:00:46,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 12:00:46,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 12:00:46,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:00:46,596 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 9 states. [2018-11-28 12:00:46,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:00:46,735 INFO L93 Difference]: Finished difference Result 93 states and 115 transitions. [2018-11-28 12:00:46,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 12:00:46,736 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2018-11-28 12:00:46,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:00:46,738 INFO L225 Difference]: With dead ends: 93 [2018-11-28 12:00:46,738 INFO L226 Difference]: Without dead ends: 70 [2018-11-28 12:00:46,739 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2018-11-28 12:00:46,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-11-28 12:00:46,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 51. [2018-11-28 12:00:46,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-11-28 12:00:46,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 60 transitions. [2018-11-28 12:00:46,748 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 60 transitions. Word has length 24 [2018-11-28 12:00:46,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:00:46,748 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 60 transitions. [2018-11-28 12:00:46,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 12:00:46,748 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 60 transitions. [2018-11-28 12:00:46,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-28 12:00:46,749 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:00:46,749 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:00:46,749 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:00:46,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:00:46,750 INFO L82 PathProgramCache]: Analyzing trace with hash -479010360, now seen corresponding path program 1 times [2018-11-28 12:00:46,750 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:00:46,750 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:00:46,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:00:46,750 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:00:46,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:00:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:00:46,953 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:00:46,953 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:00:46,953 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:00:46,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:00:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:00:47,343 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:00:47,395 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:00:47,428 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:00:47,429 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2018-11-28 12:00:47,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-28 12:00:47,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-28 12:00:47,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2018-11-28 12:00:47,430 INFO L87 Difference]: Start difference. First operand 51 states and 60 transitions. Second operand 13 states. [2018-11-28 12:00:47,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:00:47,493 INFO L93 Difference]: Finished difference Result 147 states and 178 transitions. [2018-11-28 12:00:47,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:00:47,494 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 28 [2018-11-28 12:00:47,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:00:47,495 INFO L225 Difference]: With dead ends: 147 [2018-11-28 12:00:47,495 INFO L226 Difference]: Without dead ends: 105 [2018-11-28 12:00:47,495 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2018-11-28 12:00:47,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-11-28 12:00:47,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 59. [2018-11-28 12:00:47,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-11-28 12:00:47,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2018-11-28 12:00:47,502 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 28 [2018-11-28 12:00:47,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:00:47,502 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2018-11-28 12:00:47,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-28 12:00:47,503 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2018-11-28 12:00:47,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 12:00:47,503 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:00:47,503 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:00:47,503 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:00:47,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:00:47,503 INFO L82 PathProgramCache]: Analyzing trace with hash -801997631, now seen corresponding path program 2 times [2018-11-28 12:00:47,504 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:00:47,504 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:00:47,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:00:47,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:00:47,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:00:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:00:47,727 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:00:47,727 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:00:47,727 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/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 [2018-11-28 12:00:47,734 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 12:00:48,355 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 12:00:48,355 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:00:48,369 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:00:48,417 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:00:48,437 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:00:48,437 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2018-11-28 12:00:48,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-28 12:00:48,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-28 12:00:48,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=120, Unknown=0, NotChecked=0, Total=210 [2018-11-28 12:00:48,437 INFO L87 Difference]: Start difference. First operand 59 states and 70 transitions. Second operand 15 states. [2018-11-28 12:00:48,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:00:48,489 INFO L93 Difference]: Finished difference Result 163 states and 198 transitions. [2018-11-28 12:00:48,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 12:00:48,489 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 32 [2018-11-28 12:00:48,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:00:48,490 INFO L225 Difference]: With dead ends: 163 [2018-11-28 12:00:48,490 INFO L226 Difference]: Without dead ends: 113 [2018-11-28 12:00:48,491 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=101, Invalid=139, Unknown=0, NotChecked=0, Total=240 [2018-11-28 12:00:48,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-11-28 12:00:48,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 67. [2018-11-28 12:00:48,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-11-28 12:00:48,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 80 transitions. [2018-11-28 12:00:48,499 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 80 transitions. Word has length 32 [2018-11-28 12:00:48,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:00:48,499 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 80 transitions. [2018-11-28 12:00:48,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-28 12:00:48,499 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 80 transitions. [2018-11-28 12:00:48,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-28 12:00:48,500 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:00:48,500 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:00:48,500 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:00:48,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:00:48,500 INFO L82 PathProgramCache]: Analyzing trace with hash -850791622, now seen corresponding path program 3 times [2018-11-28 12:00:48,501 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:00:48,503 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:00:48,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:00:48,503 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:00:48,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:00:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:00:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:00:48,773 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:00:48,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:00:48 BoogieIcfgContainer [2018-11-28 12:00:48,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:00:48,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:00:48,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:00:48,822 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:00:48,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:00:41" (3/4) ... [2018-11-28 12:00:48,826 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:00:48,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:00:48,827 INFO L168 Benchmark]: Toolchain (without parser) took 9349.31 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 258.5 MB). Free memory was 956.0 MB in the beginning and 966.9 MB in the end (delta: -10.9 MB). Peak memory consumption was 247.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:00:48,828 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:00:48,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.1 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -123.3 MB). Peak memory consumption was 71.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:00:48,829 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:00:48,830 INFO L168 Benchmark]: Boogie Preprocessor took 97.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:00:48,830 INFO L168 Benchmark]: RCFGBuilder took 1579.85 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 72.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -12.5 MB). Peak memory consumption was 246.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:00:48,831 INFO L168 Benchmark]: TraceAbstraction took 7226.17 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 97.0 MB). Free memory was 1.1 GB in the beginning and 966.9 MB in the end (delta: 106.1 MB). Peak memory consumption was 203.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:00:48,831 INFO L168 Benchmark]: Witness Printer took 4.22 ms. Allocated memory is still 1.3 GB. Free memory is still 966.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:00:48,834 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 390.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.1 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -123.3 MB). Peak memory consumption was 71.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 97.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1579.85 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 72.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -12.5 MB). Peak memory consumption was 246.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7226.17 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 97.0 MB). Free memory was 1.1 GB in the beginning and 966.9 MB in the end (delta: 106.1 MB). Peak memory consumption was 203.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.22 ms. Allocated memory is still 1.3 GB. Free memory is still 966.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_real at line 28, overapproximation of someBinaryArithmeticDOUBLEoperation at line 30. Possible FailurePath: [L9] double a[50][50], b[50], x[50]; VAL [\old(a)=20014, \old(a)=20010, \old(b)=20006, \old(b)=20018, \old(x)=20008, \old(x)=20007, a={20012:0}, b={20015:0}, x={20003:0}] [L20] int i, j, nmax = 50, n = 5, chkerr; [L21] double eps, w; [L22] eps = 1.0e-6 [L23] i = 0 VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, n=5, nmax=50, x={20003:0}] [L23] COND TRUE i <= n [L25] w = 0.0 [L26] j = 0 VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, j=0, n=5, nmax=50, w=0, x={20003:0}] [L26] COND TRUE j <= n [L28] a[i][j] = (i + 1) + (j + 1) VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, j=0, n=5, nmax=50, w=0, x={20003:0}] [L29] COND TRUE i == j [L29] EXPR a[i][j] [L29] a[i][j] *= 10.0 [L30] EXPR a[i][j] [L30] w += a[i][j] [L26] j++ VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, j=1, n=5, nmax=50, x={20003:0}] [L26] COND TRUE j <= n [L28] a[i][j] = (i + 1) + (j + 1) VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, j=1, n=5, nmax=50, x={20003:0}] [L29] COND FALSE !(i == j) VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, j=1, n=5, nmax=50, x={20003:0}] [L30] EXPR a[i][j] [L30] w += a[i][j] [L26] j++ VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, j=2, n=5, nmax=50, x={20003:0}] [L26] COND TRUE j <= n [L28] a[i][j] = (i + 1) + (j + 1) VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, j=2, n=5, nmax=50, x={20003:0}] [L29] COND FALSE !(i == j) VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, j=2, n=5, nmax=50, x={20003:0}] [L30] EXPR a[i][j] [L30] w += a[i][j] [L26] j++ VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, j=3, n=5, nmax=50, x={20003:0}] [L26] COND TRUE j <= n [L28] a[i][j] = (i + 1) + (j + 1) VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, j=3, n=5, nmax=50, x={20003:0}] [L29] COND FALSE !(i == j) VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, j=3, n=5, nmax=50, x={20003:0}] [L30] EXPR a[i][j] [L30] w += a[i][j] [L26] j++ VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, j=4, n=5, nmax=50, x={20003:0}] [L26] COND TRUE j <= n [L28] a[i][j] = (i + 1) + (j + 1) VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, j=4, n=5, nmax=50, x={20003:0}] [L29] COND FALSE !(i == j) VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, j=4, n=5, nmax=50, x={20003:0}] [L30] EXPR a[i][j] [L30] w += a[i][j] [L26] j++ VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, j=5, n=5, nmax=50, x={20003:0}] [L26] COND TRUE j <= n [L28] a[i][j] = (i + 1) + (j + 1) VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, j=5, n=5, nmax=50, x={20003:0}] [L29] COND FALSE !(i == j) VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, j=5, n=5, nmax=50, x={20003:0}] [L30] EXPR a[i][j] [L30] w += a[i][j] [L26] j++ VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, j=6, n=5, nmax=50, x={20003:0}] [L26] COND FALSE !(j <= n) VAL [a={20012:0}, b={20015:0}, eps=1/1000000, i=0, j=6, n=5, nmax=50, x={20003:0}] [L32] CALL __VERIFIER_assert(i==2) VAL [\old(cond)=0, a={20012:0}, b={20015:0}, x={20003:0}] [L4] COND TRUE !(cond) VAL [\old(cond)=0, a={20012:0}, b={20015:0}, cond=0, x={20003:0}] [L5] __VERIFIER_error() VAL [\old(cond)=0, a={20012:0}, b={20015:0}, cond=0, x={20003:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 64 locations, 1 error locations. UNSAFE Result, 7.1s OverallTime, 8 OverallIterations, 6 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 174 SDtfs, 289 SDslu, 349 SDs, 0 SdLazy, 237 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=7, 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, 7 MinimizatonAttempts, 120 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 4.6s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 300 NumberOfCodeBlocks, 296 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 252 ConstructedInterpolants, 0 QuantifiedInterpolants, 22290 SizeOfPredicates, 10 NumberOfNonLiveVariables, 26548 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 12 InterpolantComputations, 3 PerfectInterpolantSequences, 15/190 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:00:50,344 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:00:50,345 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:00:50,353 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:00:50,353 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:00:50,354 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:00:50,354 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:00:50,356 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:00:50,357 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:00:50,358 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:00:50,358 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:00:50,359 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:00:50,359 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:00:50,360 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:00:50,361 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:00:50,362 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:00:50,363 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:00:50,364 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:00:50,367 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:00:50,369 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:00:50,370 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:00:50,370 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:00:50,373 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:00:50,373 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:00:50,373 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:00:50,374 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:00:50,374 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:00:50,375 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:00:50,376 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:00:50,377 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:00:50,378 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:00:50,378 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:00:50,378 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:00:50,379 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:00:50,379 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:00:50,380 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:00:50,380 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 12:00:50,392 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:00:50,392 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:00:50,393 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:00:50,393 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:00:50,393 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:00:50,394 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:00:50,394 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:00:50,394 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:00:50,394 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:00:50,394 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:00:50,394 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:00:50,395 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:00:50,395 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:00:50,395 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:00:50,395 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 12:00:50,395 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 12:00:50,395 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:00:50,396 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:00:50,396 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:00:50,396 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:00:50,396 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:00:50,396 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:00:50,396 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:00:50,397 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:00:50,399 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:00:50,399 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:00:50,399 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:00:50,399 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:00:50,399 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 12:00:50,399 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:00:50,400 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 12:00:50,400 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 12:00:50,400 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_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a81eebddb84f05353da2fe57e839b2276721ce6a [2018-11-28 12:00:50,429 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:00:50,439 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:00:50,442 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:00:50,443 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:00:50,444 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:00:50,444 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/../../sv-benchmarks/c/loops/ludcmp_false-unreach-call.i [2018-11-28 12:00:50,497 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/data/39884884b/2540328d9344463b80f4aa4b85a7416c/FLAG72f6d50c8 [2018-11-28 12:00:50,840 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:00:50,841 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/sv-benchmarks/c/loops/ludcmp_false-unreach-call.i [2018-11-28 12:00:50,847 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/data/39884884b/2540328d9344463b80f4aa4b85a7416c/FLAG72f6d50c8 [2018-11-28 12:00:50,858 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/data/39884884b/2540328d9344463b80f4aa4b85a7416c [2018-11-28 12:00:50,861 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:00:50,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:00:50,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:00:50,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:00:50,866 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:00:50,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:00:50" (1/1) ... [2018-11-28 12:00:50,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@df9f055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:50, skipping insertion in model container [2018-11-28 12:00:50,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:00:50" (1/1) ... [2018-11-28 12:00:50,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:00:50,892 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:00:51,032 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:00:51,156 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:00:51,184 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:00:51,402 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:00:51,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:51 WrapperNode [2018-11-28 12:00:51,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:00:51,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:00:51,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:00:51,403 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:00:51,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:51" (1/1) ... [2018-11-28 12:00:51,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:51" (1/1) ... [2018-11-28 12:00:51,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:00:51,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:00:51,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:00:51,455 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:00:51,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:51" (1/1) ... [2018-11-28 12:00:51,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:51" (1/1) ... [2018-11-28 12:00:51,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:51" (1/1) ... [2018-11-28 12:00:51,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:51" (1/1) ... [2018-11-28 12:00:51,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:51" (1/1) ... [2018-11-28 12:00:51,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:51" (1/1) ... [2018-11-28 12:00:51,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:51" (1/1) ... [2018-11-28 12:00:51,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:00:51,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:00:51,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:00:51,568 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:00:51,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:00:51,615 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2018-11-28 12:00:51,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2018-11-28 12:00:51,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-28 12:00:51,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:00:51,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:00:51,616 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2018-11-28 12:00:51,616 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2018-11-28 12:00:51,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2018-11-28 12:00:51,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:00:51,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-28 12:00:51,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:00:51,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:00:51,617 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:00:51,617 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:00:51,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 12:00:51,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 12:00:51,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:00:54,052 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:00:57,173 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:00:59,074 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:00:59,089 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:01:00,282 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:01:02,250 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:01:11,060 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:01:11,438 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:01:11,522 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:01:11,607 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:01:11,620 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:01:11,621 INFO L280 CfgBuilder]: Removed 11 assue(true) statements. [2018-11-28 12:01:11,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:01:11 BoogieIcfgContainer [2018-11-28 12:01:11,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:01:11,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:01:11,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:01:11,624 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:01:11,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:00:50" (1/3) ... [2018-11-28 12:01:11,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3e4ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:01:11, skipping insertion in model container [2018-11-28 12:01:11,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:00:51" (2/3) ... [2018-11-28 12:01:11,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3e4ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:01:11, skipping insertion in model container [2018-11-28 12:01:11,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:01:11" (3/3) ... [2018-11-28 12:01:11,631 INFO L112 eAbstractionObserver]: Analyzing ICFG ludcmp_false-unreach-call.i [2018-11-28 12:01:11,639 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:01:11,645 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:01:11,655 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:01:11,676 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:01:11,677 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:01:11,677 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:01:11,677 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:01:11,677 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:01:11,677 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:01:11,678 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:01:11,678 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:01:11,678 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:01:11,689 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-11-28 12:01:11,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 12:01:11,693 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:01:11,694 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:01:11,696 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:01:11,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:01:11,699 INFO L82 PathProgramCache]: Analyzing trace with hash 406725423, now seen corresponding path program 1 times [2018-11-28 12:01:11,717 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:01:11,717 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/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 [2018-11-28 12:01:11,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:01:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:01:27,376 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:01:27,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:01:27,388 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP mathsat -unsat_core_generation=3 (2)] Forcibly destroying the process [2018-11-28 12:01:27,590 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:01:27,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:01:27,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:01:27,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:01:27,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:01:27,608 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2018-11-28 12:01:27,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:01:27,633 INFO L93 Difference]: Finished difference Result 122 states and 178 transitions. [2018-11-28 12:01:27,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:01:27,634 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-11-28 12:01:27,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:01:27,641 INFO L225 Difference]: With dead ends: 122 [2018-11-28 12:01:27,641 INFO L226 Difference]: Without dead ends: 20 [2018-11-28 12:01:27,644 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 [2018-11-28 12:01:27,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-28 12:01:27,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-28 12:01:27,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-28 12:01:27,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-28 12:01:27,675 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 12 [2018-11-28 12:01:27,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:01:27,676 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-28 12:01:27,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:01:27,676 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-28 12:01:27,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 12:01:27,677 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:01:27,677 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:01:27,677 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:01:27,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:01:27,677 INFO L82 PathProgramCache]: Analyzing trace with hash 394719650, now seen corresponding path program 1 times [2018-11-28 12:01:27,691 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:01:27,692 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/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 [2018-11-28 12:01:27,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:01:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:01:43,578 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:01:43,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:01:43,615 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP mathsat -unsat_core_generation=3 (3)] Forcibly destroying the process [2018-11-28 12:01:43,815 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:01:43,815 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:01:43,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:01:43,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:01:43,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:01:43,818 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 4 states. [2018-11-28 12:01:44,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:01:44,286 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2018-11-28 12:01:44,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:01:44,287 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-28 12:01:44,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:01:44,287 INFO L225 Difference]: With dead ends: 38 [2018-11-28 12:01:44,288 INFO L226 Difference]: Without dead ends: 24 [2018-11-28 12:01:44,288 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 [2018-11-28 12:01:44,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-28 12:01:44,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2018-11-28 12:01:44,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-28 12:01:44,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-11-28 12:01:44,293 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 12 [2018-11-28 12:01:44,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:01:44,294 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-11-28 12:01:44,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:01:44,294 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-28 12:01:44,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 12:01:44,294 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:01:44,294 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:01:44,296 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:01:44,296 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:01:44,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1180233829, now seen corresponding path program 1 times [2018-11-28 12:01:44,304 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:01:44,305 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/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 [2018-11-28 12:01:44,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:01:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:02:00,186 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:02:00,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:02:00,199 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP mathsat -unsat_core_generation=3 (4)] Forcibly destroying the process [2018-11-28 12:02:00,400 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:02:00,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:02:00,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:02:00,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:02:00,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:02:00,401 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 4 states. [2018-11-28 12:02:01,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:02:01,191 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2018-11-28 12:02:01,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:02:01,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-11-28 12:02:01,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:02:01,195 INFO L225 Difference]: With dead ends: 48 [2018-11-28 12:02:01,195 INFO L226 Difference]: Without dead ends: 33 [2018-11-28 12:02:01,195 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 [2018-11-28 12:02:01,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-28 12:02:01,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 24. [2018-11-28 12:02:01,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-28 12:02:01,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2018-11-28 12:02:01,203 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 16 [2018-11-28 12:02:01,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:02:01,203 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2018-11-28 12:02:01,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:02:01,203 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-11-28 12:02:01,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 12:02:01,204 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:02:01,204 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:02:01,204 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:02:01,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:02:01,204 INFO L82 PathProgramCache]: Analyzing trace with hash -370887203, now seen corresponding path program 1 times [2018-11-28 12:02:01,214 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:02:01,214 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/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 [2018-11-28 12:02:01,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:02:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:02:16,924 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:02:16,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:02:16,991 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:02:17,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP mathsat -unsat_core_generation=3 (5)] Forcibly destroying the process [2018-11-28 12:02:17,267 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:02:17,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-11-28 12:02:17,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:02:17,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:02:17,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:02:17,268 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 8 states. [2018-11-28 12:02:18,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:02:18,342 INFO L93 Difference]: Finished difference Result 51 states and 61 transitions. [2018-11-28 12:02:18,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:02:18,343 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-11-28 12:02:18,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:02:18,344 INFO L225 Difference]: With dead ends: 51 [2018-11-28 12:02:18,344 INFO L226 Difference]: Without dead ends: 36 [2018-11-28 12:02:18,344 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:02:18,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-28 12:02:18,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-28 12:02:18,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-28 12:02:18,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2018-11-28 12:02:18,350 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 16 [2018-11-28 12:02:18,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:02:18,351 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2018-11-28 12:02:18,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:02:18,351 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2018-11-28 12:02:18,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-28 12:02:18,351 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:02:18,352 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:02:18,352 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:02:18,352 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:02:18,352 INFO L82 PathProgramCache]: Analyzing trace with hash -479010360, now seen corresponding path program 1 times [2018-11-28 12:02:18,364 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:02:18,364 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-28 12:02:18,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:02:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:02:34,279 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:02:34,333 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:02:34,333 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:02:34,429 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP mathsat -unsat_core_generation=3 (6)] Forcibly destroying the process [2018-11-28 12:02:34,630 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:02:34,630 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-11-28 12:02:34,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-28 12:02:34,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-28 12:02:34,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2018-11-28 12:02:34,631 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 14 states. [2018-11-28 12:02:37,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:02:37,354 INFO L93 Difference]: Finished difference Result 71 states and 85 transitions. [2018-11-28 12:02:37,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 12:02:37,355 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 28 [2018-11-28 12:02:37,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:02:37,355 INFO L225 Difference]: With dead ends: 71 [2018-11-28 12:02:37,355 INFO L226 Difference]: Without dead ends: 44 [2018-11-28 12:02:37,356 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2018-11-28 12:02:37,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-28 12:02:37,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-28 12:02:37,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-28 12:02:37,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2018-11-28 12:02:37,360 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 28 [2018-11-28 12:02:37,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:02:37,361 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2018-11-28 12:02:37,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-28 12:02:37,361 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2018-11-28 12:02:37,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-28 12:02:37,361 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:02:37,361 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:02:37,362 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:02:37,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:02:37,362 INFO L82 PathProgramCache]: Analyzing trace with hash -850791622, now seen corresponding path program 2 times [2018-11-28 12:02:37,369 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:02:37,370 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/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 [2018-11-28 12:02:37,373 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-28 12:03:23,710 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 12:03:23,710 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:03:27,381 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:03:27,463 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-11-28 12:03:27,463 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP mathsat -unsat_core_generation=3 (7)] Forcibly destroying the process [2018-11-28 12:03:27,664 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:03:27,664 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 12:03:27,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 12:03:27,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:03:27,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:03:27,665 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 5 states. [2018-11-28 12:03:39,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:03:39,021 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2018-11-28 12:03:39,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:03:39,022 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2018-11-28 12:03:39,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:03:39,022 INFO L225 Difference]: With dead ends: 44 [2018-11-28 12:03:39,022 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:03:39,023 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:03:39,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:03:39,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:03:39,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:03:39,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:03:39,023 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2018-11-28 12:03:39,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:03:39,024 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:03:39,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 12:03:39,024 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:03:39,024 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:03:39,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:03:39,289 INFO L448 ceAbstractionStarter]: For program point L44-2(lines 44 62) no Hoare annotation was computed. [2018-11-28 12:03:39,289 INFO L451 ceAbstractionStarter]: At program point L44-3(lines 44 62) the Hoare annotation is: true [2018-11-28 12:03:39,289 INFO L448 ceAbstractionStarter]: For program point L44-4(lines 44 62) no Hoare annotation was computed. [2018-11-28 12:03:39,289 INFO L448 ceAbstractionStarter]: For program point ludcmpEXIT(lines 39 80) no Hoare annotation was computed. [2018-11-28 12:03:39,289 INFO L451 ceAbstractionStarter]: At program point L46(line 46) the Hoare annotation is: true [2018-11-28 12:03:39,289 INFO L448 ceAbstractionStarter]: For program point L46-1(line 46) no Hoare annotation was computed. [2018-11-28 12:03:39,289 INFO L451 ceAbstractionStarter]: At program point ludcmpENTRY(lines 39 80) the Hoare annotation is: true [2018-11-28 12:03:39,289 INFO L448 ceAbstractionStarter]: For program point L55-2(lines 55 61) no Hoare annotation was computed. [2018-11-28 12:03:39,289 INFO L451 ceAbstractionStarter]: At program point L55-3(lines 55 61) the Hoare annotation is: true [2018-11-28 12:03:39,289 INFO L448 ceAbstractionStarter]: For program point L47-2(lines 47 54) no Hoare annotation was computed. [2018-11-28 12:03:39,290 INFO L451 ceAbstractionStarter]: At program point L47-3(lines 47 54) the Hoare annotation is: true [2018-11-28 12:03:39,290 INFO L448 ceAbstractionStarter]: For program point L47-4(lines 47 54) no Hoare annotation was computed. [2018-11-28 12:03:39,290 INFO L448 ceAbstractionStarter]: For program point ludcmpFINAL(lines 39 80) no Hoare annotation was computed. [2018-11-28 12:03:39,290 INFO L448 ceAbstractionStarter]: For program point L72-2(lines 72 78) no Hoare annotation was computed. [2018-11-28 12:03:39,290 INFO L451 ceAbstractionStarter]: At program point L72-3(lines 72 78) the Hoare annotation is: true [2018-11-28 12:03:39,290 INFO L448 ceAbstractionStarter]: For program point L72-4(lines 72 78) no Hoare annotation was computed. [2018-11-28 12:03:39,290 INFO L448 ceAbstractionStarter]: For program point L64-2(lines 64 70) no Hoare annotation was computed. [2018-11-28 12:03:39,290 INFO L451 ceAbstractionStarter]: At program point L64-3(lines 64 70) the Hoare annotation is: true [2018-11-28 12:03:39,290 INFO L448 ceAbstractionStarter]: For program point L64-4(lines 64 70) no Hoare annotation was computed. [2018-11-28 12:03:39,290 INFO L448 ceAbstractionStarter]: For program point L58-2(lines 58 59) no Hoare annotation was computed. [2018-11-28 12:03:39,290 INFO L451 ceAbstractionStarter]: At program point L58-3(lines 58 59) the Hoare annotation is: true [2018-11-28 12:03:39,290 INFO L448 ceAbstractionStarter]: For program point L58-4(lines 58 59) no Hoare annotation was computed. [2018-11-28 12:03:39,291 INFO L448 ceAbstractionStarter]: For program point L50(lines 50 52) no Hoare annotation was computed. [2018-11-28 12:03:39,291 INFO L448 ceAbstractionStarter]: For program point L50-1(lines 50 52) no Hoare annotation was computed. [2018-11-28 12:03:39,291 INFO L448 ceAbstractionStarter]: For program point L75-2(lines 75 76) no Hoare annotation was computed. [2018-11-28 12:03:39,291 INFO L451 ceAbstractionStarter]: At program point L75-3(lines 75 76) the Hoare annotation is: true [2018-11-28 12:03:39,291 INFO L448 ceAbstractionStarter]: For program point L75-4(lines 75 76) no Hoare annotation was computed. [2018-11-28 12:03:39,291 INFO L448 ceAbstractionStarter]: For program point L67-2(lines 67 68) no Hoare annotation was computed. [2018-11-28 12:03:39,291 INFO L451 ceAbstractionStarter]: At program point L67-3(lines 67 68) the Hoare annotation is: true [2018-11-28 12:03:39,291 INFO L448 ceAbstractionStarter]: For program point L67-4(lines 67 68) no Hoare annotation was computed. [2018-11-28 12:03:39,291 INFO L448 ceAbstractionStarter]: For program point L51-2(lines 51 52) no Hoare annotation was computed. [2018-11-28 12:03:39,291 INFO L451 ceAbstractionStarter]: At program point L51-3(lines 51 52) the Hoare annotation is: true [2018-11-28 12:03:39,291 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-28 12:03:39,292 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:03:39,292 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:03:39,292 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:03:39,292 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2018-11-28 12:03:39,292 INFO L448 ceAbstractionStarter]: For program point L14-2(lines 14 15) no Hoare annotation was computed. [2018-11-28 12:03:39,292 INFO L448 ceAbstractionStarter]: For program point fabsEXIT(lines 11 17) no Hoare annotation was computed. [2018-11-28 12:03:39,292 INFO L451 ceAbstractionStarter]: At program point fabsENTRY(lines 11 17) the Hoare annotation is: true [2018-11-28 12:03:39,292 INFO L448 ceAbstractionStarter]: For program point fabsFINAL(lines 11 17) no Hoare annotation was computed. [2018-11-28 12:03:39,292 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:03:39,292 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (exists ((v_prenex_5199 (_ BitVec 64))) (and (= (select (select |#memory_int| |~#a~0.base|) (bvadd |~#a~0.offset| (_ bv4 32))) ((_ extract 63 32) v_prenex_5199)) (= (fp ((_ extract 63 63) v_prenex_5199) ((_ extract 62 52) v_prenex_5199) ((_ extract 51 0) v_prenex_5199)) (_ +zero 11 53)))) (= (_ bv0 32) |~#a~0.offset|)) [2018-11-28 12:03:39,292 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:03:39,293 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:03:39,293 INFO L448 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-11-28 12:03:39,293 INFO L448 ceAbstractionStarter]: For program point L29-2(line 29) no Hoare annotation was computed. [2018-11-28 12:03:39,293 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 18 38) no Hoare annotation was computed. [2018-11-28 12:03:39,293 INFO L448 ceAbstractionStarter]: For program point L23-2(lines 23 34) no Hoare annotation was computed. [2018-11-28 12:03:39,293 INFO L444 ceAbstractionStarter]: At program point L23-3(lines 23 34) the Hoare annotation is: (or (not (= |~#a~0.offset| (_ bv0 32))) (and (= (bvadd main_~n~0 (_ bv4294967291 32)) (_ bv0 32)) (= main_~i~0 (_ bv0 32)) (exists ((v_prenex_5199 (_ BitVec 64))) (and (= (select (select |#memory_int| |~#a~0.base|) (bvadd |~#a~0.offset| (_ bv4 32))) ((_ extract 63 32) v_prenex_5199)) (= (fp ((_ extract 63 63) v_prenex_5199) ((_ extract 62 52) v_prenex_5199) ((_ extract 51 0) v_prenex_5199)) (_ +zero 11 53))))) (forall ((v_prenex_5199 (_ BitVec 64))) (or (not (= (select (select |old(#memory_int)| |~#a~0.base|) (bvadd |~#a~0.offset| (_ bv4 32))) ((_ extract 63 32) v_prenex_5199))) (not (= (fp ((_ extract 63 63) v_prenex_5199) ((_ extract 62 52) v_prenex_5199) ((_ extract 51 0) v_prenex_5199)) (_ +zero 11 53)))))) [2018-11-28 12:03:39,293 INFO L451 ceAbstractionStarter]: At program point L23-4(lines 23 34) the Hoare annotation is: true [2018-11-28 12:03:39,293 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 18 38) no Hoare annotation was computed. [2018-11-28 12:03:39,293 INFO L448 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-11-28 12:03:39,294 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 18 38) the Hoare annotation is: (or (not (= |~#a~0.offset| (_ bv0 32))) (exists ((v_prenex_5199 (_ BitVec 64))) (and (= (select (select |#memory_int| |~#a~0.base|) (bvadd |~#a~0.offset| (_ bv4 32))) ((_ extract 63 32) v_prenex_5199)) (= (fp ((_ extract 63 63) v_prenex_5199) ((_ extract 62 52) v_prenex_5199) ((_ extract 51 0) v_prenex_5199)) (_ +zero 11 53)))) (forall ((v_prenex_5199 (_ BitVec 64))) (or (not (= (select (select |old(#memory_int)| |~#a~0.base|) (bvadd |~#a~0.offset| (_ bv4 32))) ((_ extract 63 32) v_prenex_5199))) (not (= (fp ((_ extract 63 63) v_prenex_5199) ((_ extract 62 52) v_prenex_5199) ((_ extract 51 0) v_prenex_5199)) (_ +zero 11 53)))))) [2018-11-28 12:03:39,294 INFO L448 ceAbstractionStarter]: For program point L26-2(lines 26 31) no Hoare annotation was computed. [2018-11-28 12:03:39,294 INFO L444 ceAbstractionStarter]: At program point L26-3(lines 26 31) the Hoare annotation is: (or (not (= |~#a~0.offset| (_ bv0 32))) (and (= main_~j~0 (_ bv0 32)) (= (bvadd main_~n~0 (_ bv4294967291 32)) (_ bv0 32)) (= main_~i~0 (_ bv0 32)) (exists ((v_prenex_5199 (_ BitVec 64))) (and (= (select (select |#memory_int| |~#a~0.base|) (bvadd |~#a~0.offset| (_ bv4 32))) ((_ extract 63 32) v_prenex_5199)) (= (fp ((_ extract 63 63) v_prenex_5199) ((_ extract 62 52) v_prenex_5199) ((_ extract 51 0) v_prenex_5199)) (_ +zero 11 53))))) (forall ((v_prenex_5199 (_ BitVec 64))) (or (not (= (select (select |old(#memory_int)| |~#a~0.base|) (bvadd |~#a~0.offset| (_ bv4 32))) ((_ extract 63 32) v_prenex_5199))) (not (= (fp ((_ extract 63 63) v_prenex_5199) ((_ extract 62 52) v_prenex_5199) ((_ extract 51 0) v_prenex_5199)) (_ +zero 11 53)))))) [2018-11-28 12:03:39,294 INFO L444 ceAbstractionStarter]: At program point L26-4(lines 26 31) the Hoare annotation is: (or (not (= |~#a~0.offset| (_ bv0 32))) (forall ((v_prenex_5199 (_ BitVec 64))) (or (not (= (select (select |old(#memory_int)| |~#a~0.base|) (bvadd |~#a~0.offset| (_ bv4 32))) ((_ extract 63 32) v_prenex_5199))) (not (= (fp ((_ extract 63 63) v_prenex_5199) ((_ extract 62 52) v_prenex_5199) ((_ extract 51 0) v_prenex_5199)) (_ +zero 11 53)))))) [2018-11-28 12:03:39,294 INFO L448 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2018-11-28 12:03:39,294 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-28 12:03:39,294 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-28 12:03:39,294 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-28 12:03:39,295 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-28 12:03:39,295 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-28 12:03:39,295 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-28 12:03:39,301 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,302 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,302 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,302 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,303 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,303 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,303 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,303 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,305 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:03:39,305 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:03:39,309 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,310 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,310 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,310 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,311 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,311 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,311 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,311 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,312 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:03:39,312 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:03:39,313 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,313 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,313 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,314 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,314 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,314 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,314 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,314 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,315 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:03:39,315 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:03:39,315 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,316 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,316 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,316 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,316 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,316 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,316 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,317 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,317 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:03:39,317 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:03:39,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:03:39 BoogieIcfgContainer [2018-11-28 12:03:39,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:03:39,319 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:03:39,319 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:03:39,320 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:03:39,320 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:01:11" (3/4) ... [2018-11-28 12:03:39,326 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:03:39,332 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ludcmp [2018-11-28 12:03:39,332 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:03:39,333 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs [2018-11-28 12:03:39,333 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:03:39,333 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 12:03:39,357 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1332 nodes and edges [2018-11-28 12:03:39,359 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 670 nodes and edges [2018-11-28 12:03:39,360 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 328 nodes and edges [2018-11-28 12:03:39,361 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 163 nodes and edges [2018-11-28 12:03:39,361 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 81 nodes and edges [2018-11-28 12:03:39,362 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2018-11-28 12:03:39,363 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-28 12:03:39,363 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-28 12:03:39,363 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 12:03:39,363 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 12:03:39,364 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:03:39,364 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:03:39,388 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(a == 0bv32) || ((~bvadd64(n, 4294967291bv32) == 0bv32 && i == 0bv32) && (\exists v_prenex_5199 : bv64 :: unknown-#memory_int-unknown[a][~bvadd64(a, 4bv32)] == v_prenex_5199[63:32] && ~fp~LONGDOUBLE(v_prenex_5199[63:63], v_prenex_5199[62:52], v_prenex_5199[51:0]) == ~Pluszero~LONGDOUBLE()))) || (forall v_prenex_5199 : bv64 :: !(\old(unknown-#memory_int-unknown)[a][~bvadd64(a, 4bv32)] == v_prenex_5199[63:32]) || !(~fp~LONGDOUBLE(v_prenex_5199[63:63], v_prenex_5199[62:52], v_prenex_5199[51:0]) == ~Pluszero~LONGDOUBLE())) [2018-11-28 12:03:39,389 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(a == 0bv32) || (((j == 0bv32 && ~bvadd64(n, 4294967291bv32) == 0bv32) && i == 0bv32) && (\exists v_prenex_5199 : bv64 :: unknown-#memory_int-unknown[a][~bvadd64(a, 4bv32)] == v_prenex_5199[63:32] && ~fp~LONGDOUBLE(v_prenex_5199[63:63], v_prenex_5199[62:52], v_prenex_5199[51:0]) == ~Pluszero~LONGDOUBLE()))) || (forall v_prenex_5199 : bv64 :: !(\old(unknown-#memory_int-unknown)[a][~bvadd64(a, 4bv32)] == v_prenex_5199[63:32]) || !(~fp~LONGDOUBLE(v_prenex_5199[63:63], v_prenex_5199[62:52], v_prenex_5199[51:0]) == ~Pluszero~LONGDOUBLE())) [2018-11-28 12:03:39,415 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bd81d50b-769f-4410-bd46-7ea2dfecdc27/bin-2019/uautomizer/witness.graphml [2018-11-28 12:03:39,415 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:03:39,416 INFO L168 Benchmark]: Toolchain (without parser) took 168554.82 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 432.0 MB). Free memory was 943.4 MB in the beginning and 840.4 MB in the end (delta: 102.9 MB). Peak memory consumption was 535.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:03:39,417 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-11-28 12:03:39,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 540.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 943.4 MB in the beginning and 1.2 GB in the end (delta: -227.5 MB). Peak memory consumption was 122.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:03:39,417 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:03:39,418 INFO L168 Benchmark]: Boogie Preprocessor took 112.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:03:39,418 INFO L168 Benchmark]: RCFGBuilder took 20053.76 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 176.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -16.0 MB). Peak memory consumption was 386.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:03:39,418 INFO L168 Benchmark]: TraceAbstraction took 147697.37 ms. Allocated memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: 76.0 MB). Free memory was 1.2 GB in the beginning and 851.2 MB in the end (delta: 308.7 MB). Peak memory consumption was 384.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:03:39,419 INFO L168 Benchmark]: Witness Printer took 95.89 ms. Allocated memory is still 1.5 GB. Free memory was 851.2 MB in the beginning and 840.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:03:39,420 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 540.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 943.4 MB in the beginning and 1.2 GB in the end (delta: -227.5 MB). Peak memory consumption was 122.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 112.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 20053.76 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 176.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -16.0 MB). Peak memory consumption was 386.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 147697.37 ms. Allocated memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: 76.0 MB). Free memory was 1.2 GB in the beginning and 851.2 MB in the end (delta: 308.7 MB). Peak memory consumption was 384.8 MB. Max. memory is 11.5 GB. * Witness Printer took 95.89 ms. Allocated memory is still 1.5 GB. Free memory was 851.2 MB in the beginning and 840.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * 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 [2018-11-28 12:03:39,424 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,425 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,425 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,425 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,425 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,425 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,425 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,425 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,426 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:03:39,426 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:03:39,426 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,426 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,426 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,427 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,427 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,427 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,427 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,427 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,427 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:03:39,427 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (!(a == 0bv32) || (((j == 0bv32 && ~bvadd64(n, 4294967291bv32) == 0bv32) && i == 0bv32) && (\exists v_prenex_5199 : bv64 :: unknown-#memory_int-unknown[a][~bvadd64(a, 4bv32)] == v_prenex_5199[63:32] && ~fp~LONGDOUBLE(v_prenex_5199[63:63], v_prenex_5199[62:52], v_prenex_5199[51:0]) == ~Pluszero~LONGDOUBLE()))) || (forall v_prenex_5199 : bv64 :: !(\old(unknown-#memory_int-unknown)[a][~bvadd64(a, 4bv32)] == v_prenex_5199[63:32]) || !(~fp~LONGDOUBLE(v_prenex_5199[63:63], v_prenex_5199[62:52], v_prenex_5199[51:0]) == ~Pluszero~LONGDOUBLE())) - 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 [2018-11-28 12:03:39,428 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,428 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,428 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,429 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,429 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,429 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,429 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,429 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,429 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:03:39,430 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:03:39,430 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,430 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,430 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,430 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,431 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,431 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,431 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,431 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-28 12:03:39,431 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:03:39,431 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (!(a == 0bv32) || ((~bvadd64(n, 4294967291bv32) == 0bv32 && i == 0bv32) && (\exists v_prenex_5199 : bv64 :: unknown-#memory_int-unknown[a][~bvadd64(a, 4bv32)] == v_prenex_5199[63:32] && ~fp~LONGDOUBLE(v_prenex_5199[63:63], v_prenex_5199[62:52], v_prenex_5199[51:0]) == ~Pluszero~LONGDOUBLE()))) || (forall v_prenex_5199 : bv64 :: !(\old(unknown-#memory_int-unknown)[a][~bvadd64(a, 4bv32)] == v_prenex_5199[63:32]) || !(~fp~LONGDOUBLE(v_prenex_5199[63:63], v_prenex_5199[62:52], v_prenex_5199[51:0]) == ~Pluszero~LONGDOUBLE())) - 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, 147.6s OverallTime, 6 OverallIterations, 6 TraceHistogramMax, 16.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 145 SDtfs, 149 SDslu, 181 SDs, 0 SdLazy, 236 SolverSat, 28 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 13.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 38 PreInvPairs, 51 NumberOfFragments, 237 HoareAnnotationTreeSize, 38 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.9s SsaConstructionTime, 104.8s SatisfiabilityAnalysisTime, 23.6s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 156 ConstructedInterpolants, 6 QuantifiedInterpolants, 16605 SizeOfPredicates, 15 NumberOfNonLiveVariables, 47247 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 67/125 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...