./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 aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/ludcmp_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a81eebddb84f05353da2fe57e839b2276721ce6a ..................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/ludcmp_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a81eebddb84f05353da2fe57e839b2276721ce6a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 15:17:18,543 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 15:17:18,544 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 15:17:18,553 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 15:17:18,553 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 15:17:18,554 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 15:17:18,556 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 15:17:18,557 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 15:17:18,558 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 15:17:18,559 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 15:17:18,560 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 15:17:18,560 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 15:17:18,561 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 15:17:18,562 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 15:17:18,562 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 15:17:18,563 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 15:17:18,564 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 15:17:18,565 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 15:17:18,567 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 15:17:18,568 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 15:17:18,569 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 15:17:18,570 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 15:17:18,572 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 15:17:18,572 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 15:17:18,572 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 15:17:18,573 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 15:17:18,574 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 15:17:18,574 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 15:17:18,576 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 15:17:18,576 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 15:17:18,577 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 15:17:18,577 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 15:17:18,577 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 15:17:18,577 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 15:17:18,578 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 15:17:18,579 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 15:17:18,579 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 15:17:18,590 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 15:17:18,590 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 15:17:18,590 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 15:17:18,591 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 15:17:18,591 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 15:17:18,591 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 15:17:18,591 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 15:17:18,591 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 15:17:18,592 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 15:17:18,592 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 15:17:18,592 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 15:17:18,592 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 15:17:18,592 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 15:17:18,593 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 15:17:18,593 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 15:17:18,593 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 15:17:18,593 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 15:17:18,593 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 15:17:18,593 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 15:17:18,594 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 15:17:18,594 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 15:17:18,594 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 15:17:18,594 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 15:17:18,594 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 15:17:18,594 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 15:17:18,594 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 15:17:18,595 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 15:17:18,595 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 15:17:18,595 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 15:17:18,595 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 15:17:18,595 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 15:17:18,595 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 15:17:18,595 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 15:17:18,595 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 15:17:18,595 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 15:17:18,595 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 15:17:18,595 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 15:17:18,595 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a81eebddb84f05353da2fe57e839b2276721ce6a [2018-11-23 15:17:18,618 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 15:17:18,626 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 15:17:18,628 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 15:17:18,629 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 15:17:18,630 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 15:17:18,630 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/../../sv-benchmarks/c/loops/ludcmp_false-unreach-call.i [2018-11-23 15:17:18,665 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/data/47c9699a9/511fcc13d9bd4a53a4b18ce1fc5211fd/FLAG711f1fbe4 [2018-11-23 15:17:18,999 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 15:17:19,000 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/sv-benchmarks/c/loops/ludcmp_false-unreach-call.i [2018-11-23 15:17:19,006 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/data/47c9699a9/511fcc13d9bd4a53a4b18ce1fc5211fd/FLAG711f1fbe4 [2018-11-23 15:17:19,428 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/data/47c9699a9/511fcc13d9bd4a53a4b18ce1fc5211fd [2018-11-23 15:17:19,430 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 15:17:19,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 15:17:19,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 15:17:19,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 15:17:19,433 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 15:17:19,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:17:19" (1/1) ... [2018-11-23 15:17:19,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536b5fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:19, skipping insertion in model container [2018-11-23 15:17:19,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:17:19" (1/1) ... [2018-11-23 15:17:19,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 15:17:19,455 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 15:17:19,590 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:17:19,654 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 15:17:19,676 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:17:19,745 INFO L195 MainTranslator]: Completed translation [2018-11-23 15:17:19,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:19 WrapperNode [2018-11-23 15:17:19,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 15:17:19,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 15:17:19,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 15:17:19,746 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 15:17:19,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:19" (1/1) ... [2018-11-23 15:17:19,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:19" (1/1) ... [2018-11-23 15:17:19,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 15:17:19,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 15:17:19,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 15:17:19,846 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 15:17:19,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:19" (1/1) ... [2018-11-23 15:17:19,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:19" (1/1) ... [2018-11-23 15:17:19,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:19" (1/1) ... [2018-11-23 15:17:19,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:19" (1/1) ... [2018-11-23 15:17:19,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:19" (1/1) ... [2018-11-23 15:17:19,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:19" (1/1) ... [2018-11-23 15:17:19,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:19" (1/1) ... [2018-11-23 15:17:19,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 15:17:19,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 15:17:19,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 15:17:19,951 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 15:17:19,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 15:17:19,998 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2018-11-23 15:17:19,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2018-11-23 15:17:19,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-23 15:17:19,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 15:17:19,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 15:17:19,999 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2018-11-23 15:17:19,999 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2018-11-23 15:17:19,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-23 15:17:19,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 15:17:19,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 15:17:19,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 15:17:20,000 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 15:17:20,000 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 15:17:20,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-11-23 15:17:20,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 15:17:20,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 15:17:20,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 15:17:21,666 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 15:17:21,666 INFO L280 CfgBuilder]: Removed 11 assue(true) statements. [2018-11-23 15:17:21,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:17:21 BoogieIcfgContainer [2018-11-23 15:17:21,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 15:17:21,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 15:17:21,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 15:17:21,670 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 15:17:21,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:17:19" (1/3) ... [2018-11-23 15:17:21,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f05e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:17:21, skipping insertion in model container [2018-11-23 15:17:21,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:19" (2/3) ... [2018-11-23 15:17:21,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f05e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:17:21, skipping insertion in model container [2018-11-23 15:17:21,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:17:21" (3/3) ... [2018-11-23 15:17:21,673 INFO L112 eAbstractionObserver]: Analyzing ICFG ludcmp_false-unreach-call.i [2018-11-23 15:17:21,681 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 15:17:21,686 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 15:17:21,695 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 15:17:21,717 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 15:17:21,717 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 15:17:21,717 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 15:17:21,717 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 15:17:21,717 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 15:17:21,718 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 15:17:21,718 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 15:17:21,718 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 15:17:21,732 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-11-23 15:17:21,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 15:17:21,736 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:17:21,736 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:17:21,738 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:17:21,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:17:21,741 INFO L82 PathProgramCache]: Analyzing trace with hash 406725423, now seen corresponding path program 1 times [2018-11-23 15:17:21,742 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:17:21,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:21,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:17:21,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:21,771 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:17:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:17:22,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:17:22,090 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:17:22,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 15:17:22,091 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:17:22,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 15:17:22,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 15:17:22,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 15:17:22,104 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2018-11-23 15:17:22,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:17:22,123 INFO L93 Difference]: Finished difference Result 122 states and 178 transitions. [2018-11-23 15:17:22,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 15:17:22,124 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-11-23 15:17:22,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:17:22,129 INFO L225 Difference]: With dead ends: 122 [2018-11-23 15:17:22,129 INFO L226 Difference]: Without dead ends: 20 [2018-11-23 15:17:22,133 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 [2018-11-23 15:17:22,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-23 15:17:22,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-23 15:17:22,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-23 15:17:22,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-23 15:17:22,156 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 12 [2018-11-23 15:17:22,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:17:22,157 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-23 15:17:22,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 15:17:22,157 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-23 15:17:22,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 15:17:22,157 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:17:22,158 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:17:22,158 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:17:22,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:17:22,158 INFO L82 PathProgramCache]: Analyzing trace with hash 394719650, now seen corresponding path program 1 times [2018-11-23 15:17:22,158 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:17:22,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:22,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:17:22,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:22,160 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:17:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:17:22,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:17:22,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:17:22,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 15:17:22,374 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:17:22,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 15:17:22,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 15:17:22,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 15:17:22,376 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 4 states. [2018-11-23 15:17:22,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:17:22,402 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2018-11-23 15:17:22,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 15:17:22,402 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-23 15:17:22,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:17:22,403 INFO L225 Difference]: With dead ends: 38 [2018-11-23 15:17:22,403 INFO L226 Difference]: Without dead ends: 24 [2018-11-23 15:17:22,404 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 [2018-11-23 15:17:22,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-23 15:17:22,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2018-11-23 15:17:22,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-23 15:17:22,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-11-23 15:17:22,408 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 12 [2018-11-23 15:17:22,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:17:22,408 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-11-23 15:17:22,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 15:17:22,408 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-23 15:17:22,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-23 15:17:22,409 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:17:22,409 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:17:22,409 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:17:22,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:17:22,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1180233829, now seen corresponding path program 1 times [2018-11-23 15:17:22,410 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:17:22,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:22,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:17:22,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:22,411 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:17:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:17:22,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:17:22,600 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:17:22,600 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:17:22,601 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-11-23 15:17:22,602 INFO L202 CegarAbsIntRunner]: [141], [142], [155], [163], [169], [171], [176], [178], [180], [194], [197], [199], [207], [208], [209], [211] [2018-11-23 15:17:22,637 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:17:22,637 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:17:22,846 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.NumberFormatException: For input string: "1/1000000" at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.handleInfeasibleCase(BaseRefinementStrategy.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:206) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.NumberFormatException: For input string: "1/1000000" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) at java.lang.Integer.parseInt(Integer.java:580) at java.math.BigInteger.(BigInteger.java:470) at java.math.BigInteger.(BigInteger.java:606) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueStatementProcessor.lambda$0(ExplicitValueStatementProcessor.java:60) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.EvaluatorFactory.createSingletonValueExpressionEvaluator(EvaluatorFactory.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.visit(NonrelationalStatementProcessor.java:476) at de.uni_freiburg.informatik.ultimate.boogie.BoogieVisitor.processExpression(BoogieVisitor.java:377) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processExpression(NonrelationalStatementProcessor.java:221) at de.uni_freiburg.informatik.ultimate.boogie.BoogieTransformer.processExpression(BoogieTransformer.java:682) at de.uni_freiburg.informatik.ultimate.boogie.BoogieVisitor.processExpression(BoogieVisitor.java:391) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processExpression(NonrelationalStatementProcessor.java:221) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:411) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:194) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:176) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:145) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:373) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:364) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:127) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:536) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:217) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:379) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:380) ... 20 more [2018-11-23 15:17:22,849 INFO L168 Benchmark]: Toolchain (without parser) took 3418.70 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 370.1 MB). Free memory was 958.0 MB in the beginning and 1.2 GB in the end (delta: -238.1 MB). Peak memory consumption was 132.0 MB. Max. memory is 11.5 GB. [2018-11-23 15:17:22,850 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:17:22,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.43 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 914.9 MB in the end (delta: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 11.5 GB. [2018-11-23 15:17:22,851 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 914.9 MB in the beginning and 1.2 GB in the end (delta: -250.9 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-11-23 15:17:22,852 INFO L168 Benchmark]: Boogie Preprocessor took 104.96 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: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. [2018-11-23 15:17:22,852 INFO L168 Benchmark]: RCFGBuilder took 1715.82 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 932.9 MB in the end (delta: 216.6 MB). Peak memory consumption was 304.6 MB. Max. memory is 11.5 GB. [2018-11-23 15:17:22,853 INFO L168 Benchmark]: TraceAbstraction took 1181.34 ms. Allocated memory was 1.3 GB in the beginning and 1.4 GB in the end (delta: 135.8 MB). Free memory was 932.9 MB in the beginning and 1.2 GB in the end (delta: -263.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:17:22,856 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 314.43 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 914.9 MB in the end (delta: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 99.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 914.9 MB in the beginning and 1.2 GB in the end (delta: -250.9 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 104.96 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: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1715.82 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 932.9 MB in the end (delta: 216.6 MB). Peak memory consumption was 304.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1181.34 ms. Allocated memory was 1.3 GB in the beginning and 1.4 GB in the end (delta: 135.8 MB). Free memory was 932.9 MB in the beginning and 1.2 GB in the end (delta: -263.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.NumberFormatException: For input string: "1/1000000" de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.NumberFormatException: For input string: "1/1000000": de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 15:17:24,323 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 15:17:24,324 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 15:17:24,332 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 15:17:24,333 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 15:17:24,333 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 15:17:24,334 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 15:17:24,335 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 15:17:24,336 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 15:17:24,337 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 15:17:24,337 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 15:17:24,338 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 15:17:24,338 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 15:17:24,339 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 15:17:24,340 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 15:17:24,340 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 15:17:24,341 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 15:17:24,342 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 15:17:24,343 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 15:17:24,345 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 15:17:24,346 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 15:17:24,346 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 15:17:24,348 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 15:17:24,349 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 15:17:24,349 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 15:17:24,349 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 15:17:24,350 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 15:17:24,350 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 15:17:24,351 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 15:17:24,352 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 15:17:24,353 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 15:17:24,353 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 15:17:24,353 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 15:17:24,353 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 15:17:24,354 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 15:17:24,354 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 15:17:24,355 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 15:17:24,365 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 15:17:24,365 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 15:17:24,366 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 15:17:24,366 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 15:17:24,366 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 15:17:24,366 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 15:17:24,366 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 15:17:24,367 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 15:17:24,367 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 15:17:24,367 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 15:17:24,368 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 15:17:24,368 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 15:17:24,369 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 15:17:24,369 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 15:17:24,369 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 15:17:24,369 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 15:17:24,369 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 15:17:24,369 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 15:17:24,369 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 15:17:24,369 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 15:17:24,370 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 15:17:24,370 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 15:17:24,370 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 15:17:24,370 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 15:17:24,370 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 15:17:24,370 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 15:17:24,370 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 15:17:24,371 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 15:17:24,371 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 15:17:24,371 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 15:17:24,371 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 15:17:24,371 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 15:17:24,371 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 15:17:24,371 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 15:17:24,371 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 15:17:24,372 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_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a81eebddb84f05353da2fe57e839b2276721ce6a [2018-11-23 15:17:24,402 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 15:17:24,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 15:17:24,413 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 15:17:24,414 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 15:17:24,415 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 15:17:24,415 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/../../sv-benchmarks/c/loops/ludcmp_false-unreach-call.i [2018-11-23 15:17:24,454 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/data/f1ed2621e/3cb5cc59838d48b38f7c4c4feeeee49e/FLAGa789d1a11 [2018-11-23 15:17:24,787 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 15:17:24,787 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/sv-benchmarks/c/loops/ludcmp_false-unreach-call.i [2018-11-23 15:17:24,793 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/data/f1ed2621e/3cb5cc59838d48b38f7c4c4feeeee49e/FLAGa789d1a11 [2018-11-23 15:17:25,217 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/data/f1ed2621e/3cb5cc59838d48b38f7c4c4feeeee49e [2018-11-23 15:17:25,220 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 15:17:25,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 15:17:25,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 15:17:25,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 15:17:25,225 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 15:17:25,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:17:25" (1/1) ... [2018-11-23 15:17:25,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112348e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:25, skipping insertion in model container [2018-11-23 15:17:25,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:17:25" (1/1) ... [2018-11-23 15:17:25,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 15:17:25,258 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 15:17:25,401 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:17:25,530 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 15:17:25,560 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:17:25,743 INFO L195 MainTranslator]: Completed translation [2018-11-23 15:17:25,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:25 WrapperNode [2018-11-23 15:17:25,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 15:17:25,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 15:17:25,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 15:17:25,744 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 15:17:25,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:25" (1/1) ... [2018-11-23 15:17:25,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:25" (1/1) ... [2018-11-23 15:17:25,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 15:17:25,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 15:17:25,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 15:17:25,843 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 15:17:25,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:25" (1/1) ... [2018-11-23 15:17:25,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:25" (1/1) ... [2018-11-23 15:17:25,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:25" (1/1) ... [2018-11-23 15:17:25,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:25" (1/1) ... [2018-11-23 15:17:25,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:25" (1/1) ... [2018-11-23 15:17:25,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:25" (1/1) ... [2018-11-23 15:17:25,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:25" (1/1) ... [2018-11-23 15:17:25,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 15:17:25,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 15:17:25,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 15:17:25,952 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 15:17:25,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 15:17:26,001 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2018-11-23 15:17:26,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2018-11-23 15:17:26,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-23 15:17:26,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 15:17:26,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 15:17:26,001 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2018-11-23 15:17:26,002 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2018-11-23 15:17:26,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2018-11-23 15:17:26,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 15:17:26,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-23 15:17:26,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 15:17:26,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 15:17:26,002 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 15:17:26,002 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 15:17:26,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 15:17:26,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 15:17:26,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 15:17:28,427 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 15:17:31,619 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 15:17:33,695 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 15:17:33,707 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 15:17:35,530 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 15:17:37,129 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 15:18:05,476 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 15:18:05,735 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 15:18:05,782 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 15:18:05,854 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 15:18:05,878 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 15:18:05,878 INFO L280 CfgBuilder]: Removed 11 assue(true) statements. [2018-11-23 15:18:05,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:18:05 BoogieIcfgContainer [2018-11-23 15:18:05,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 15:18:05,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 15:18:05,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 15:18:05,882 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 15:18:05,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:17:25" (1/3) ... [2018-11-23 15:18:05,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39418ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:18:05, skipping insertion in model container [2018-11-23 15:18:05,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:25" (2/3) ... [2018-11-23 15:18:05,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39418ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:18:05, skipping insertion in model container [2018-11-23 15:18:05,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:18:05" (3/3) ... [2018-11-23 15:18:05,884 INFO L112 eAbstractionObserver]: Analyzing ICFG ludcmp_false-unreach-call.i [2018-11-23 15:18:05,890 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 15:18:05,895 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 15:18:05,909 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 15:18:05,930 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 15:18:05,930 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 15:18:05,930 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 15:18:05,931 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 15:18:05,931 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 15:18:05,931 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 15:18:05,931 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 15:18:05,931 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 15:18:05,931 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 15:18:05,944 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-11-23 15:18:05,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 15:18:05,947 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:18:05,948 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:18:05,949 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:18:05,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:18:05,954 INFO L82 PathProgramCache]: Analyzing trace with hash 406725423, now seen corresponding path program 1 times [2018-11-23 15:18:05,979 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 15:18:05,980 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-23 15:18:05,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:18:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:18:21,185 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:18:21,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:18:21,195 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 [2018-11-23 15:18:21,398 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:18:21,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 15:18:21,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 15:18:21,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 15:18:21,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 15:18:21,418 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2018-11-23 15:18:21,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:18:21,444 INFO L93 Difference]: Finished difference Result 122 states and 178 transitions. [2018-11-23 15:18:21,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 15:18:21,445 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-11-23 15:18:21,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:18:21,452 INFO L225 Difference]: With dead ends: 122 [2018-11-23 15:18:21,452 INFO L226 Difference]: Without dead ends: 20 [2018-11-23 15:18:21,455 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 [2018-11-23 15:18:21,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-23 15:18:21,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-23 15:18:21,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-23 15:18:21,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-23 15:18:21,484 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 12 [2018-11-23 15:18:21,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:18:21,485 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-23 15:18:21,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 15:18:21,485 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-23 15:18:21,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 15:18:21,485 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:18:21,485 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:18:21,486 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:18:21,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:18:21,486 INFO L82 PathProgramCache]: Analyzing trace with hash 394719650, now seen corresponding path program 1 times [2018-11-23 15:18:21,500 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 15:18:21,500 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-23 15:18:21,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:18:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:18:36,694 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:18:36,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:18:36,711 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 [2018-11-23 15:18:36,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:18:36,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 15:18:36,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 15:18:36,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 15:18:36,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 15:18:36,913 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 4 states. [2018-11-23 15:18:37,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:18:37,408 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2018-11-23 15:18:37,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 15:18:37,409 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-23 15:18:37,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:18:37,410 INFO L225 Difference]: With dead ends: 38 [2018-11-23 15:18:37,410 INFO L226 Difference]: Without dead ends: 24 [2018-11-23 15:18:37,410 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 [2018-11-23 15:18:37,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-23 15:18:37,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2018-11-23 15:18:37,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-23 15:18:37,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-11-23 15:18:37,414 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 12 [2018-11-23 15:18:37,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:18:37,415 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-11-23 15:18:37,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 15:18:37,415 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-23 15:18:37,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-23 15:18:37,415 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:18:37,415 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:18:37,415 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:18:37,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:18:37,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1180233829, now seen corresponding path program 1 times [2018-11-23 15:18:37,422 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 15:18:37,423 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-23 15:18:37,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:18:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:18:52,785 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:18:52,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:18:52,795 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 [2018-11-23 15:18:52,995 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:18:52,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 15:18:52,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 15:18:52,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 15:18:52,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 15:18:52,996 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 4 states. [2018-11-23 15:18:53,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:18:53,735 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2018-11-23 15:18:53,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 15:18:53,736 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-11-23 15:18:53,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:18:53,738 INFO L225 Difference]: With dead ends: 48 [2018-11-23 15:18:53,738 INFO L226 Difference]: Without dead ends: 33 [2018-11-23 15:18:53,738 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 [2018-11-23 15:18:53,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-23 15:18:53,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 24. [2018-11-23 15:18:53,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-23 15:18:53,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2018-11-23 15:18:53,746 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 16 [2018-11-23 15:18:53,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:18:53,746 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2018-11-23 15:18:53,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 15:18:53,747 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-11-23 15:18:53,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-23 15:18:53,747 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:18:53,747 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:18:53,747 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:18:53,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:18:53,748 INFO L82 PathProgramCache]: Analyzing trace with hash -370887203, now seen corresponding path program 1 times [2018-11-23 15:18:53,756 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 15:18:53,756 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-23 15:18:53,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:19:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:19:08,925 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:19:08,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:19:08,949 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:19:09,017 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 [2018-11-23 15:19:09,217 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:19:09,218 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 15:19:09,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:19:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (6)] Forcibly destroying the process [2018-11-23 15:19:31,423 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 15:19:31,424 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-11-23 15:19:31,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 15:19:31,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 15:19:31,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-23 15:19:31,425 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 8 states. [2018-11-23 15:19:32,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:19:32,220 INFO L93 Difference]: Finished difference Result 51 states and 61 transitions. [2018-11-23 15:19:32,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 15:19:32,220 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-11-23 15:19:32,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:19:32,221 INFO L225 Difference]: With dead ends: 51 [2018-11-23 15:19:32,221 INFO L226 Difference]: Without dead ends: 36 [2018-11-23 15:19:32,221 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2018-11-23 15:19:32,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-23 15:19:32,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-23 15:19:32,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-23 15:19:32,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2018-11-23 15:19:32,225 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 16 [2018-11-23 15:19:32,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:19:32,225 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2018-11-23 15:19:32,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 15:19:32,225 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2018-11-23 15:19:32,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-23 15:19:32,226 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:19:32,226 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:19:32,226 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:19:32,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:19:32,226 INFO L82 PathProgramCache]: Analyzing trace with hash -479010360, now seen corresponding path program 1 times [2018-11-23 15:19:32,233 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 15:19:32,233 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-23 15:19:32,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:19:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:19:47,566 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:19:47,617 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:19:47,617 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:19:47,711 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 (7)] Forcibly destroying the process [2018-11-23 15:19:47,911 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:19:47,912 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 15:19:47,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:20:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (8)] Forcibly destroying the process [2018-11-23 15:20:10,192 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 15:20:10,192 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-11-23 15:20:10,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 15:20:10,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 15:20:10,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2018-11-23 15:20:10,193 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 14 states. [2018-11-23 15:20:12,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:20:12,754 INFO L93 Difference]: Finished difference Result 71 states and 85 transitions. [2018-11-23 15:20:12,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 15:20:12,755 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 28 [2018-11-23 15:20:12,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:20:12,755 INFO L225 Difference]: With dead ends: 71 [2018-11-23 15:20:12,755 INFO L226 Difference]: Without dead ends: 44 [2018-11-23 15:20:12,756 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 [2018-11-23 15:20:12,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-23 15:20:12,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-23 15:20:12,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-23 15:20:12,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2018-11-23 15:20:12,762 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 28 [2018-11-23 15:20:12,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:20:12,762 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2018-11-23 15:20:12,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 15:20:12,762 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2018-11-23 15:20:12,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-23 15:20:12,763 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:20:12,763 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:20:12,763 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:20:12,763 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:20:12,763 INFO L82 PathProgramCache]: Analyzing trace with hash -850791622, now seen corresponding path program 2 times [2018-11-23 15:20:12,770 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 15:20:12,770 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-11-23 15:20:12,777 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-23 15:20:56,861 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 15:20:56,861 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 15:21:00,481 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:21:00,560 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-11-23 15:21:00,560 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP mathsat -unsat_core_generation=3 (9)] Forcibly destroying the process [2018-11-23 15:21:00,760 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:21:00,760 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 15:21:00,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 15:21:00,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 15:21:00,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-23 15:21:00,761 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 5 states. [2018-11-23 15:21:11,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:21:11,135 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2018-11-23 15:21:11,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 15:21:11,136 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2018-11-23 15:21:11,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:21:11,136 INFO L225 Difference]: With dead ends: 44 [2018-11-23 15:21:11,136 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 15:21:11,137 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 [2018-11-23 15:21:11,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 15:21:11,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 15:21:11,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 15:21:11,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 15:21:11,137 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2018-11-23 15:21:11,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:21:11,137 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 15:21:11,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 15:21:11,138 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 15:21:11,138 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 15:21:11,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 15:21:11,364 INFO L448 ceAbstractionStarter]: For program point L44-2(lines 44 62) no Hoare annotation was computed. [2018-11-23 15:21:11,364 INFO L451 ceAbstractionStarter]: At program point L44-3(lines 44 62) the Hoare annotation is: true [2018-11-23 15:21:11,364 INFO L448 ceAbstractionStarter]: For program point L44-4(lines 44 62) no Hoare annotation was computed. [2018-11-23 15:21:11,364 INFO L448 ceAbstractionStarter]: For program point ludcmpEXIT(lines 39 80) no Hoare annotation was computed. [2018-11-23 15:21:11,364 INFO L451 ceAbstractionStarter]: At program point L46(line 46) the Hoare annotation is: true [2018-11-23 15:21:11,364 INFO L448 ceAbstractionStarter]: For program point L46-1(line 46) no Hoare annotation was computed. [2018-11-23 15:21:11,365 INFO L451 ceAbstractionStarter]: At program point ludcmpENTRY(lines 39 80) the Hoare annotation is: true [2018-11-23 15:21:11,365 INFO L448 ceAbstractionStarter]: For program point L55-2(lines 55 61) no Hoare annotation was computed. [2018-11-23 15:21:11,365 INFO L451 ceAbstractionStarter]: At program point L55-3(lines 55 61) the Hoare annotation is: true [2018-11-23 15:21:11,365 INFO L448 ceAbstractionStarter]: For program point L47-2(lines 47 54) no Hoare annotation was computed. [2018-11-23 15:21:11,365 INFO L451 ceAbstractionStarter]: At program point L47-3(lines 47 54) the Hoare annotation is: true [2018-11-23 15:21:11,365 INFO L448 ceAbstractionStarter]: For program point L47-4(lines 47 54) no Hoare annotation was computed. [2018-11-23 15:21:11,365 INFO L448 ceAbstractionStarter]: For program point ludcmpFINAL(lines 39 80) no Hoare annotation was computed. [2018-11-23 15:21:11,365 INFO L448 ceAbstractionStarter]: For program point L72-2(lines 72 78) no Hoare annotation was computed. [2018-11-23 15:21:11,365 INFO L451 ceAbstractionStarter]: At program point L72-3(lines 72 78) the Hoare annotation is: true [2018-11-23 15:21:11,365 INFO L448 ceAbstractionStarter]: For program point L72-4(lines 72 78) no Hoare annotation was computed. [2018-11-23 15:21:11,366 INFO L448 ceAbstractionStarter]: For program point L64-2(lines 64 70) no Hoare annotation was computed. [2018-11-23 15:21:11,366 INFO L451 ceAbstractionStarter]: At program point L64-3(lines 64 70) the Hoare annotation is: true [2018-11-23 15:21:11,366 INFO L448 ceAbstractionStarter]: For program point L64-4(lines 64 70) no Hoare annotation was computed. [2018-11-23 15:21:11,366 INFO L448 ceAbstractionStarter]: For program point L58-2(lines 58 59) no Hoare annotation was computed. [2018-11-23 15:21:11,366 INFO L451 ceAbstractionStarter]: At program point L58-3(lines 58 59) the Hoare annotation is: true [2018-11-23 15:21:11,366 INFO L448 ceAbstractionStarter]: For program point L58-4(lines 58 59) no Hoare annotation was computed. [2018-11-23 15:21:11,366 INFO L448 ceAbstractionStarter]: For program point L50(lines 50 52) no Hoare annotation was computed. [2018-11-23 15:21:11,366 INFO L448 ceAbstractionStarter]: For program point L50-1(lines 50 52) no Hoare annotation was computed. [2018-11-23 15:21:11,366 INFO L448 ceAbstractionStarter]: For program point L75-2(lines 75 76) no Hoare annotation was computed. [2018-11-23 15:21:11,366 INFO L451 ceAbstractionStarter]: At program point L75-3(lines 75 76) the Hoare annotation is: true [2018-11-23 15:21:11,366 INFO L448 ceAbstractionStarter]: For program point L75-4(lines 75 76) no Hoare annotation was computed. [2018-11-23 15:21:11,367 INFO L448 ceAbstractionStarter]: For program point L67-2(lines 67 68) no Hoare annotation was computed. [2018-11-23 15:21:11,367 INFO L451 ceAbstractionStarter]: At program point L67-3(lines 67 68) the Hoare annotation is: true [2018-11-23 15:21:11,367 INFO L448 ceAbstractionStarter]: For program point L67-4(lines 67 68) no Hoare annotation was computed. [2018-11-23 15:21:11,367 INFO L448 ceAbstractionStarter]: For program point L51-2(lines 51 52) no Hoare annotation was computed. [2018-11-23 15:21:11,367 INFO L451 ceAbstractionStarter]: At program point L51-3(lines 51 52) the Hoare annotation is: true [2018-11-23 15:21:11,367 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-23 15:21:11,367 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 15:21:11,367 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 15:21:11,367 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 15:21:11,367 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2018-11-23 15:21:11,368 INFO L448 ceAbstractionStarter]: For program point L14-2(lines 14 15) no Hoare annotation was computed. [2018-11-23 15:21:11,368 INFO L448 ceAbstractionStarter]: For program point fabsEXIT(lines 11 17) no Hoare annotation was computed. [2018-11-23 15:21:11,368 INFO L451 ceAbstractionStarter]: At program point fabsENTRY(lines 11 17) the Hoare annotation is: true [2018-11-23 15:21:11,368 INFO L448 ceAbstractionStarter]: For program point fabsFINAL(lines 11 17) no Hoare annotation was computed. [2018-11-23 15:21:11,368 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 15:21:11,368 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|)) [2018-11-23 15:21:11,368 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 15:21:11,368 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 15:21:11,368 INFO L448 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-11-23 15:21:11,368 INFO L448 ceAbstractionStarter]: For program point L29-2(line 29) no Hoare annotation was computed. [2018-11-23 15:21:11,369 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 18 38) no Hoare annotation was computed. [2018-11-23 15:21:11,369 INFO L448 ceAbstractionStarter]: For program point L23-2(lines 23 34) no Hoare annotation was computed. [2018-11-23 15:21:11,369 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)))))) [2018-11-23 15:21:11,369 INFO L451 ceAbstractionStarter]: At program point L23-4(lines 23 34) the Hoare annotation is: true [2018-11-23 15:21:11,369 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 18 38) no Hoare annotation was computed. [2018-11-23 15:21:11,369 INFO L448 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-11-23 15:21:11,369 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)))))) [2018-11-23 15:21:11,369 INFO L448 ceAbstractionStarter]: For program point L26-2(lines 26 31) no Hoare annotation was computed. [2018-11-23 15:21:11,370 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)))))) [2018-11-23 15:21:11,370 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)))))) [2018-11-23 15:21:11,370 INFO L448 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2018-11-23 15:21:11,370 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-23 15:21:11,370 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-23 15:21:11,370 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-23 15:21:11,370 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-23 15:21:11,370 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-23 15:21:11,371 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-23 15:21:11,376 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,376 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,376 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,377 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,377 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,377 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,377 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,377 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,379 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 15:21:11,379 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 15:21:11,382 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,382 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,382 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,382 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,382 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,383 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,383 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,383 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,383 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 15:21:11,384 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 15:21:11,384 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,385 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,385 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,385 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,385 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,385 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,385 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,386 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,386 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 15:21:11,386 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 15:21:11,386 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,387 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,387 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,387 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,387 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,387 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,388 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,388 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,388 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 15:21:11,388 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 15:21:11,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:21:11 BoogieIcfgContainer [2018-11-23 15:21:11,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 15:21:11,390 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 15:21:11,390 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 15:21:11,390 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 15:21:11,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:18:05" (3/4) ... [2018-11-23 15:21:11,393 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 15:21:11,397 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ludcmp [2018-11-23 15:21:11,397 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 15:21:11,397 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs [2018-11-23 15:21:11,397 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 15:21:11,397 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 15:21:11,416 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1332 nodes and edges [2018-11-23 15:21:11,418 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 670 nodes and edges [2018-11-23 15:21:11,419 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 328 nodes and edges [2018-11-23 15:21:11,419 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 163 nodes and edges [2018-11-23 15:21:11,419 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 81 nodes and edges [2018-11-23 15:21:11,420 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2018-11-23 15:21:11,420 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-23 15:21:11,420 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-23 15:21:11,421 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 15:21:11,421 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 15:21:11,421 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 15:21:11,421 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 15:21:11,445 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())) [2018-11-23 15:21:11,445 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())) [2018-11-23 15:21:11,473 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_18c2b6ea-560e-4cce-be2a-ee9aabf17440/bin-2019/utaipan/witness.graphml [2018-11-23 15:21:11,473 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 15:21:11,474 INFO L168 Benchmark]: Toolchain (without parser) took 226253.24 ms. Allocated memory was 1.0 GB in the beginning and 3.8 GB in the end (delta: 2.8 GB). Free memory was 949.7 MB in the beginning and 747.6 MB in the end (delta: 202.2 MB). Peak memory consumption was 3.0 GB. Max. memory is 11.5 GB. [2018-11-23 15:21:11,475 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:21:11,475 INFO L168 Benchmark]: CACSL2BoogieTranslator took 522.14 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 853.1 MB in the end (delta: 96.6 MB). Peak memory consumption was 96.6 MB. Max. memory is 11.5 GB. [2018-11-23 15:21:11,475 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 853.1 MB in the beginning and 1.1 GB in the end (delta: -254.5 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2018-11-23 15:21:11,475 INFO L168 Benchmark]: Boogie Preprocessor took 108.74 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: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2018-11-23 15:21:11,476 INFO L168 Benchmark]: RCFGBuilder took 39927.06 ms. Allocated memory was 1.1 GB in the beginning and 3.8 GB in the end (delta: 2.7 GB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -263.5 MB). Peak memory consumption was 2.8 GB. Max. memory is 11.5 GB. [2018-11-23 15:21:11,476 INFO L168 Benchmark]: TraceAbstraction took 185510.47 ms. Allocated memory was 3.8 GB in the beginning and 3.8 GB in the end (delta: 6.8 MB). Free memory was 1.4 GB in the beginning and 747.6 MB in the end (delta: 606.4 MB). Peak memory consumption was 613.2 MB. Max. memory is 11.5 GB. [2018-11-23 15:21:11,476 INFO L168 Benchmark]: Witness Printer took 82.99 ms. Allocated memory is still 3.8 GB. Free memory is still 747.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:21:11,478 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 522.14 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 853.1 MB in the end (delta: 96.6 MB). Peak memory consumption was 96.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 98.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 853.1 MB in the beginning and 1.1 GB in the end (delta: -254.5 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 108.74 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: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 39927.06 ms. Allocated memory was 1.1 GB in the beginning and 3.8 GB in the end (delta: 2.7 GB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -263.5 MB). Peak memory consumption was 2.8 GB. Max. memory is 11.5 GB. * TraceAbstraction took 185510.47 ms. Allocated memory was 3.8 GB in the beginning and 3.8 GB in the end (delta: 6.8 MB). Free memory was 1.4 GB in the beginning and 747.6 MB in the end (delta: 606.4 MB). Peak memory consumption was 613.2 MB. Max. memory is 11.5 GB. * Witness Printer took 82.99 ms. Allocated memory is still 3.8 GB. Free memory is still 747.6 MB. There was no memory consumed. 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 [2018-11-23 15:21:11,482 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,482 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,483 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,483 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,483 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,483 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,483 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,483 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,484 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 15:21:11,484 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 15:21:11,484 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,484 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,485 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,485 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,485 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,485 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,485 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,485 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,485 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 15:21:11,486 WARN L1272 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 [2018-11-23 15:21:11,486 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,486 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,486 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,487 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,487 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,487 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,487 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,487 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,487 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 15:21:11,488 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 15:21:11,488 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,488 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,488 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,488 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,489 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,489 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,489 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,489 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5199,QUANTIFIED] [2018-11-23 15:21:11,489 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 15:21:11,489 WARN L1272 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, 185.4s OverallTime, 6 OverallIterations, 6 TraceHistogramMax, 15.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 145 SDtfs, 149 SDslu, 181 SDs, 0 SdLazy, 237 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s 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, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 1.1s SsaConstructionTime, 125.5s SatisfiabilityAnalysisTime, 22.5s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 9 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...