./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/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 8d1cc22c86ec678ca6c8e47fb3affd89f077aca1 ........................................................................................................................................................................................................................................................................................................................ 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_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/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 8d1cc22c86ec678ca6c8e47fb3affd89f077aca1 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 16:35:19,585 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 16:35:19,586 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 16:35:19,592 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 16:35:19,592 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 16:35:19,592 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 16:35:19,593 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 16:35:19,594 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 16:35:19,595 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 16:35:19,595 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 16:35:19,595 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 16:35:19,596 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 16:35:19,596 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 16:35:19,597 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 16:35:19,597 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 16:35:19,597 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 16:35:19,598 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 16:35:19,599 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 16:35:19,600 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 16:35:19,600 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 16:35:19,601 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 16:35:19,601 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 16:35:19,602 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 16:35:19,603 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 16:35:19,603 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 16:35:19,603 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 16:35:19,604 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 16:35:19,604 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 16:35:19,605 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 16:35:19,605 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 16:35:19,605 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 16:35:19,606 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 16:35:19,606 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 16:35:19,606 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 16:35:19,606 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 16:35:19,607 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 16:35:19,607 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 16:35:19,614 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 16:35:19,614 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 16:35:19,615 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 16:35:19,615 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 16:35:19,615 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 16:35:19,615 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 16:35:19,615 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 16:35:19,615 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 16:35:19,616 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 16:35:19,616 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 16:35:19,616 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 16:35:19,616 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 16:35:19,616 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 16:35:19,616 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 16:35:19,617 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 16:35:19,617 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 16:35:19,617 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 16:35:19,617 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 16:35:19,617 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 16:35:19,617 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 16:35:19,617 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 16:35:19,617 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 16:35:19,618 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 16:35:19,618 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 16:35:19,618 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 16:35:19,618 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 16:35:19,618 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 16:35:19,618 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 16:35:19,618 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 16:35:19,619 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 16:35:19,619 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 16:35:19,619 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 16:35:19,619 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 16:35:19,619 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 16:35:19,619 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 16:35:19,619 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 16:35:19,619 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_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/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 -> 8d1cc22c86ec678ca6c8e47fb3affd89f077aca1 [2018-12-09 16:35:19,638 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 16:35:19,647 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 16:35:19,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 16:35:19,650 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 16:35:19,651 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 16:35:19,651 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c [2018-12-09 16:35:19,689 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/data/a19360f70/a369bf16a76a44cc9f945d60256585ea/FLAG4e96b25f3 [2018-12-09 16:35:20,127 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 16:35:20,127 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c [2018-12-09 16:35:20,131 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/data/a19360f70/a369bf16a76a44cc9f945d60256585ea/FLAG4e96b25f3 [2018-12-09 16:35:20,140 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/data/a19360f70/a369bf16a76a44cc9f945d60256585ea [2018-12-09 16:35:20,142 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 16:35:20,143 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 16:35:20,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 16:35:20,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 16:35:20,147 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 16:35:20,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:35:20" (1/1) ... [2018-12-09 16:35:20,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26c1f7bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:20, skipping insertion in model container [2018-12-09 16:35:20,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:35:20" (1/1) ... [2018-12-09 16:35:20,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 16:35:20,170 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 16:35:20,278 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:35:20,281 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 16:35:20,306 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:35:20,353 INFO L195 MainTranslator]: Completed translation [2018-12-09 16:35:20,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:20 WrapperNode [2018-12-09 16:35:20,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 16:35:20,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 16:35:20,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 16:35:20,354 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 16:35:20,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:20" (1/1) ... [2018-12-09 16:35:20,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:20" (1/1) ... [2018-12-09 16:35:20,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 16:35:20,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 16:35:20,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 16:35:20,369 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 16:35:20,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:20" (1/1) ... [2018-12-09 16:35:20,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:20" (1/1) ... [2018-12-09 16:35:20,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:20" (1/1) ... [2018-12-09 16:35:20,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:20" (1/1) ... [2018-12-09 16:35:20,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:20" (1/1) ... [2018-12-09 16:35:20,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:20" (1/1) ... [2018-12-09 16:35:20,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:20" (1/1) ... [2018-12-09 16:35:20,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 16:35:20,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 16:35:20,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 16:35:20,389 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 16:35:20,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 16:35:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 16:35:20,418 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 16:35:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 16:35:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 16:35:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 16:35:20,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 16:35:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 16:35:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 16:35:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-12-09 16:35:20,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-12-09 16:35:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 16:35:20,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 16:35:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 16:35:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-09 16:35:20,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-09 16:35:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 16:35:20,586 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 16:35:20,586 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 16:35:20,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:35:20 BoogieIcfgContainer [2018-12-09 16:35:20,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 16:35:20,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 16:35:20,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 16:35:20,588 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 16:35:20,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:35:20" (1/3) ... [2018-12-09 16:35:20,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65afc2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:35:20, skipping insertion in model container [2018-12-09 16:35:20,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:20" (2/3) ... [2018-12-09 16:35:20,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65afc2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:35:20, skipping insertion in model container [2018-12-09 16:35:20,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:35:20" (3/3) ... [2018-12-09 16:35:20,590 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0930_true-unreach-call.c [2018-12-09 16:35:20,596 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 16:35:20,600 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 16:35:20,610 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 16:35:20,627 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 16:35:20,627 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 16:35:20,627 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 16:35:20,627 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 16:35:20,627 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 16:35:20,627 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 16:35:20,627 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 16:35:20,627 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 16:35:20,637 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-12-09 16:35:20,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 16:35:20,640 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:35:20,641 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:35:20,642 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:35:20,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:35:20,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1500863293, now seen corresponding path program 1 times [2018-12-09 16:35:20,646 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:35:20,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:35:20,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:35:20,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:35:20,673 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:35:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:35:20,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:35:20,729 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:35:20,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 16:35:20,729 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:35:20,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 16:35:20,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 16:35:20,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 16:35:20,740 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2018-12-09 16:35:20,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:35:20,753 INFO L93 Difference]: Finished difference Result 86 states and 127 transitions. [2018-12-09 16:35:20,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 16:35:20,754 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-12-09 16:35:20,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:35:20,759 INFO L225 Difference]: With dead ends: 86 [2018-12-09 16:35:20,759 INFO L226 Difference]: Without dead ends: 43 [2018-12-09 16:35:20,761 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 16:35:20,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-09 16:35:20,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-12-09 16:35:20,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-09 16:35:20,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2018-12-09 16:35:20,783 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 17 [2018-12-09 16:35:20,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:35:20,783 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2018-12-09 16:35:20,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 16:35:20,783 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2018-12-09 16:35:20,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 16:35:20,784 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:35:20,784 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:35:20,784 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:35:20,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:35:20,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1557758696, now seen corresponding path program 1 times [2018-12-09 16:35:20,785 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:35:20,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:35:20,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:35:20,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:35:20,786 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:35:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 16:35:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 16:35:20,831 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 16:35:20,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:35:20 BoogieIcfgContainer [2018-12-09 16:35:20,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 16:35:20,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 16:35:20,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 16:35:20,851 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 16:35:20,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:35:20" (3/4) ... [2018-12-09 16:35:20,854 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 16:35:20,854 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 16:35:20,854 INFO L168 Benchmark]: Toolchain (without parser) took 711.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -121.5 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. [2018-12-09 16:35:20,855 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:35:20,855 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2018-12-09 16:35:20,856 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-09 16:35:20,856 INFO L168 Benchmark]: Boogie Preprocessor took 20.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-09 16:35:20,856 INFO L168 Benchmark]: RCFGBuilder took 197.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-12-09 16:35:20,857 INFO L168 Benchmark]: TraceAbstraction took 264.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 11.5 GB. [2018-12-09 16:35:20,857 INFO L168 Benchmark]: Witness Printer took 2.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:35:20,859 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 209.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 197.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 264.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 121]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 120, overapproximation of someBinaryArithmeticFLOAToperation at line 32, overapproximation of bitwiseAnd at line 31. Possible FailurePath: [L12-L16] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L18] static const float zero_log = 0.0; VAL [\old(Lg1_log)=20, \old(Lg2_log)=21, \old(Lg3_log)=5, \old(Lg4_log)=8, \old(Lg5_log)=10, \old(Lg6_log)=16, \old(Lg7_log)=15, \old(ln2_hi_log)=7, \old(ln2_lo_log)=11, \old(two25_log)=14, \old(zero_log)=13, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L116] float x = 1.0f; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L117] CALL, EXPR __ieee754_logf(x) VAL [\old(x)=1, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L21] float hfsq, f, s, z, R, w, t1, t2, dk; [L22] __int32_t k, ix, i, j; VAL [\old(x)=1, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L30] k = 0 VAL [\old(x)=1, ix=2, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L31] COND TRUE ((ix & 0x7fffffff) == 0) [L32] return -two25_log / zero_log; VAL [\old(x)=1, ix=2, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L117] RET, EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=9, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L117] float res = __ieee754_logf(x); [L120] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=9, res == 0.0f && __signbit_float(res) == 0=0, two25_log=33554432, x=1, zero_log=0] [L120] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L121] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=9, two25_log=33554432, x=1, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 58 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 16:35:22,144 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 16:35:22,145 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 16:35:22,151 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 16:35:22,152 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 16:35:22,152 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 16:35:22,153 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 16:35:22,153 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 16:35:22,154 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 16:35:22,155 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 16:35:22,155 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 16:35:22,155 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 16:35:22,155 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 16:35:22,156 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 16:35:22,156 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 16:35:22,157 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 16:35:22,157 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 16:35:22,158 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 16:35:22,159 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 16:35:22,160 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 16:35:22,160 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 16:35:22,161 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 16:35:22,162 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 16:35:22,162 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 16:35:22,162 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 16:35:22,162 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 16:35:22,163 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 16:35:22,163 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 16:35:22,163 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 16:35:22,164 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 16:35:22,164 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 16:35:22,164 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 16:35:22,164 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 16:35:22,165 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 16:35:22,165 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 16:35:22,165 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 16:35:22,165 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 16:35:22,172 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 16:35:22,173 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 16:35:22,173 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 16:35:22,173 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 16:35:22,173 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 16:35:22,173 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 16:35:22,174 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 16:35:22,174 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 16:35:22,174 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 16:35:22,174 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 16:35:22,174 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 16:35:22,174 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 16:35:22,174 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 16:35:22,174 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 16:35:22,175 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 16:35:22,175 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 16:35:22,175 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 16:35:22,175 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 16:35:22,175 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 16:35:22,175 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 16:35:22,175 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 16:35:22,175 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 16:35:22,175 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 16:35:22,175 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 16:35:22,176 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 16:35:22,176 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 16:35:22,176 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 16:35:22,176 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 16:35:22,176 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 16:35:22,176 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 16:35:22,176 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 16:35:22,176 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 16:35:22,176 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 16:35:22,176 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 16:35:22,176 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 16:35:22,176 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_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/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 -> 8d1cc22c86ec678ca6c8e47fb3affd89f077aca1 [2018-12-09 16:35:22,194 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 16:35:22,200 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 16:35:22,202 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 16:35:22,203 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 16:35:22,204 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 16:35:22,204 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c [2018-12-09 16:35:22,239 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/data/dd963cfbf/af0ee21594c342b5823780b83cb75b07/FLAG478b6081e [2018-12-09 16:35:22,683 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 16:35:22,683 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c [2018-12-09 16:35:22,687 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/data/dd963cfbf/af0ee21594c342b5823780b83cb75b07/FLAG478b6081e [2018-12-09 16:35:22,695 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/data/dd963cfbf/af0ee21594c342b5823780b83cb75b07 [2018-12-09 16:35:22,697 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 16:35:22,697 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 16:35:22,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 16:35:22,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 16:35:22,700 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 16:35:22,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:35:22" (1/1) ... [2018-12-09 16:35:22,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284ba15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:22, skipping insertion in model container [2018-12-09 16:35:22,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:35:22" (1/1) ... [2018-12-09 16:35:22,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 16:35:22,718 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 16:35:22,824 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:35:22,828 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 16:35:22,853 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:35:22,868 INFO L195 MainTranslator]: Completed translation [2018-12-09 16:35:22,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:22 WrapperNode [2018-12-09 16:35:22,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 16:35:22,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 16:35:22,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 16:35:22,869 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 16:35:22,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:22" (1/1) ... [2018-12-09 16:35:22,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:22" (1/1) ... [2018-12-09 16:35:22,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 16:35:22,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 16:35:22,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 16:35:22,886 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 16:35:22,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:22" (1/1) ... [2018-12-09 16:35:22,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:22" (1/1) ... [2018-12-09 16:35:22,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:22" (1/1) ... [2018-12-09 16:35:22,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:22" (1/1) ... [2018-12-09 16:35:22,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:22" (1/1) ... [2018-12-09 16:35:22,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:22" (1/1) ... [2018-12-09 16:35:22,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:22" (1/1) ... [2018-12-09 16:35:22,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 16:35:22,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 16:35:22,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 16:35:22,949 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 16:35:22,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 16:35:22,979 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 16:35:22,979 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 16:35:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 16:35:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 16:35:22,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 16:35:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 16:35:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 16:35:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-12-09 16:35:22,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-12-09 16:35:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 16:35:22,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 16:35:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 16:35:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-09 16:35:22,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-09 16:35:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 16:35:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 16:35:23,853 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 16:35:34,177 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 16:35:34,253 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 16:35:34,259 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 16:35:34,259 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 16:35:34,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:35:34 BoogieIcfgContainer [2018-12-09 16:35:34,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 16:35:34,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 16:35:34,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 16:35:34,262 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 16:35:34,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:35:22" (1/3) ... [2018-12-09 16:35:34,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57bb91a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:35:34, skipping insertion in model container [2018-12-09 16:35:34,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:35:22" (2/3) ... [2018-12-09 16:35:34,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57bb91a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:35:34, skipping insertion in model container [2018-12-09 16:35:34,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:35:34" (3/3) ... [2018-12-09 16:35:34,264 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0930_true-unreach-call.c [2018-12-09 16:35:34,269 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 16:35:34,273 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 16:35:34,282 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 16:35:34,298 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 16:35:34,298 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 16:35:34,298 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 16:35:34,299 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 16:35:34,299 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 16:35:34,299 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 16:35:34,299 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 16:35:34,299 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 16:35:34,299 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 16:35:34,308 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-12-09 16:35:34,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 16:35:34,311 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:35:34,312 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:35:34,313 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:35:34,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:35:34,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1500863293, now seen corresponding path program 1 times [2018-12-09 16:35:34,318 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 16:35:34,319 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 16:35:34,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:35:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:35:34,532 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:35:34,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:35:34,542 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 16:35:34,552 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:35:34,552 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 16:35:34,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 16:35:34,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 16:35:34,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 16:35:34,563 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2018-12-09 16:35:34,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:35:34,577 INFO L93 Difference]: Finished difference Result 86 states and 127 transitions. [2018-12-09 16:35:34,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 16:35:34,578 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-12-09 16:35:34,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:35:34,586 INFO L225 Difference]: With dead ends: 86 [2018-12-09 16:35:34,586 INFO L226 Difference]: Without dead ends: 43 [2018-12-09 16:35:34,589 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 16:35:34,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-09 16:35:34,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-12-09 16:35:34,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-09 16:35:34,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2018-12-09 16:35:34,613 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 17 [2018-12-09 16:35:34,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:35:34,614 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2018-12-09 16:35:34,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 16:35:34,614 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2018-12-09 16:35:34,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 16:35:34,614 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:35:34,614 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:35:34,615 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:35:34,615 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:35:34,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1557758696, now seen corresponding path program 1 times [2018-12-09 16:35:34,615 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 16:35:34,615 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 16:35:34,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:35:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:35:34,801 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:35:34,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:35:34,860 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 16:35:34,874 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:35:34,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 16:35:34,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 16:35:34,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 16:35:34,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 16:35:34,876 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand 6 states. [2018-12-09 16:35:38,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:35:38,190 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2018-12-09 16:35:38,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 16:35:38,191 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-12-09 16:35:38,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:35:38,193 INFO L225 Difference]: With dead ends: 62 [2018-12-09 16:35:38,193 INFO L226 Difference]: Without dead ends: 47 [2018-12-09 16:35:38,194 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 16:35:38,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-09 16:35:38,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2018-12-09 16:35:38,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-09 16:35:38,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2018-12-09 16:35:38,199 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 18 [2018-12-09 16:35:38,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:35:38,199 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2018-12-09 16:35:38,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 16:35:38,199 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2018-12-09 16:35:38,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 16:35:38,200 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:35:38,200 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:35:38,200 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:35:38,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:35:38,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1081840321, now seen corresponding path program 1 times [2018-12-09 16:35:38,201 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 16:35:38,201 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-09 16:35:38,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:35:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:35:38,397 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:35:38,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:35:38,431 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 16:35:38,440 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:35:38,440 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 16:35:38,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 16:35:38,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 16:35:38,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 16:35:38,441 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand 6 states. [2018-12-09 16:35:41,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:35:41,650 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2018-12-09 16:35:41,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 16:35:41,651 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-12-09 16:35:41,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:35:41,652 INFO L225 Difference]: With dead ends: 62 [2018-12-09 16:35:41,652 INFO L226 Difference]: Without dead ends: 47 [2018-12-09 16:35:41,652 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 16:35:41,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-09 16:35:41,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2018-12-09 16:35:41,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-09 16:35:41,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2018-12-09 16:35:41,656 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 19 [2018-12-09 16:35:41,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:35:41,657 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2018-12-09 16:35:41,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 16:35:41,657 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2018-12-09 16:35:41,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 16:35:41,657 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:35:41,657 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:35:41,658 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:35:41,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:35:41,658 INFO L82 PathProgramCache]: Analyzing trace with hash 560078652, now seen corresponding path program 1 times [2018-12-09 16:35:41,658 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 16:35:41,658 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 16:35:41,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:35:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:35:41,719 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:35:41,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:35:41,758 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 16:35:41,767 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:35:41,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 16:35:41,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 16:35:41,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 16:35:41,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 16:35:41,768 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand 6 states. [2018-12-09 16:35:44,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:35:44,384 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2018-12-09 16:35:44,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 16:35:44,385 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-12-09 16:35:44,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:35:44,386 INFO L225 Difference]: With dead ends: 60 [2018-12-09 16:35:44,387 INFO L226 Difference]: Without dead ends: 45 [2018-12-09 16:35:44,387 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 16:35:44,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-09 16:35:44,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2018-12-09 16:35:44,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-09 16:35:44,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2018-12-09 16:35:44,392 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 20 [2018-12-09 16:35:44,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:35:44,393 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2018-12-09 16:35:44,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 16:35:44,393 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2018-12-09 16:35:44,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 16:35:44,393 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:35:44,394 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:35:44,394 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:35:44,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:35:44,394 INFO L82 PathProgramCache]: Analyzing trace with hash 2087902934, now seen corresponding path program 1 times [2018-12-09 16:35:44,394 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 16:35:44,395 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-09 16:35:44,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:35:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:35:45,231 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:35:45,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:35:45,305 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 16:35:45,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:35:45,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 16:35:45,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 16:35:45,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 16:35:45,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 16:35:45,322 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand 7 states. [2018-12-09 16:35:48,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:35:48,029 INFO L93 Difference]: Finished difference Result 71 states and 86 transitions. [2018-12-09 16:35:48,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 16:35:48,030 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2018-12-09 16:35:48,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:35:48,031 INFO L225 Difference]: With dead ends: 71 [2018-12-09 16:35:48,031 INFO L226 Difference]: Without dead ends: 53 [2018-12-09 16:35:48,032 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-12-09 16:35:48,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-12-09 16:35:48,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 48. [2018-12-09 16:35:48,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-09 16:35:48,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2018-12-09 16:35:48,035 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 28 [2018-12-09 16:35:48,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:35:48,036 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2018-12-09 16:35:48,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 16:35:48,036 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-12-09 16:35:48,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 16:35:48,036 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:35:48,037 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:35:48,037 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:35:48,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:35:48,037 INFO L82 PathProgramCache]: Analyzing trace with hash -286004855, now seen corresponding path program 1 times [2018-12-09 16:35:48,037 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 16:35:48,037 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-12-09 16:35:48,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:35:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:35:48,107 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:35:48,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:35:48,138 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 16:35:48,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:35:48,147 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 16:35:48,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 16:35:48,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 16:35:48,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-09 16:35:48,147 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 6 states. [2018-12-09 16:35:58,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:35:58,511 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2018-12-09 16:35:58,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 16:35:58,512 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2018-12-09 16:35:58,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:35:58,513 INFO L225 Difference]: With dead ends: 57 [2018-12-09 16:35:58,513 INFO L226 Difference]: Without dead ends: 54 [2018-12-09 16:35:58,513 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-12-09 16:35:58,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-12-09 16:35:58,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2018-12-09 16:35:58,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-09 16:35:58,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2018-12-09 16:35:58,517 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 28 [2018-12-09 16:35:58,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:35:58,518 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2018-12-09 16:35:58,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 16:35:58,518 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2018-12-09 16:35:58,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 16:35:58,518 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:35:58,518 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:35:58,518 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:35:58,519 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:35:58,519 INFO L82 PathProgramCache]: Analyzing trace with hash 601498826, now seen corresponding path program 1 times [2018-12-09 16:35:58,519 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 16:35:58,519 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-12-09 16:35:58,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:35:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:35:58,706 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:35:58,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:35:58,921 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 16:35:58,930 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:35:58,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 16:35:58,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 16:35:58,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 16:35:58,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-12-09 16:35:58,931 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand 9 states. [2018-12-09 16:36:27,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:36:27,543 INFO L93 Difference]: Finished difference Result 76 states and 87 transitions. [2018-12-09 16:36:27,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 16:36:27,583 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-12-09 16:36:27,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:36:27,584 INFO L225 Difference]: With dead ends: 76 [2018-12-09 16:36:27,584 INFO L226 Difference]: Without dead ends: 42 [2018-12-09 16:36:27,584 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-12-09 16:36:27,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-09 16:36:27,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-12-09 16:36:27,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-09 16:36:27,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2018-12-09 16:36:27,588 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 28 [2018-12-09 16:36:27,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:36:27,588 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2018-12-09 16:36:27,588 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 16:36:27,588 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2018-12-09 16:36:27,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 16:36:27,589 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:36:27,589 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:36:27,589 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:36:27,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:36:27,590 INFO L82 PathProgramCache]: Analyzing trace with hash -19336663, now seen corresponding path program 1 times [2018-12-09 16:36:27,590 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 16:36:27,590 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-12-09 16:36:27,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:36:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:36:27,814 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:36:30,915 WARN L180 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-12-09 16:36:43,859 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-12-09 16:36:43,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:36:43,879 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 16:36:43,889 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:36:43,889 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 16:36:43,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 16:36:43,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 16:36:43,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=61, Unknown=5, NotChecked=0, Total=90 [2018-12-09 16:36:43,890 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 10 states. [2018-12-09 16:37:50,431 WARN L180 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-12-09 16:38:12,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:38:12,133 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2018-12-09 16:38:12,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 16:38:12,370 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2018-12-09 16:38:12,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:38:12,371 INFO L225 Difference]: With dead ends: 53 [2018-12-09 16:38:12,371 INFO L226 Difference]: Without dead ends: 37 [2018-12-09 16:38:12,372 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 35.0s TimeCoverageRelationStatistics Valid=46, Invalid=125, Unknown=11, NotChecked=0, Total=182 [2018-12-09 16:38:12,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-09 16:38:12,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-12-09 16:38:12,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-09 16:38:12,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 36 transitions. [2018-12-09 16:38:12,377 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 36 transitions. Word has length 28 [2018-12-09 16:38:12,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:38:12,377 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 36 transitions. [2018-12-09 16:38:12,378 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 16:38:12,378 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 36 transitions. [2018-12-09 16:38:12,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-09 16:38:12,378 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:38:12,379 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:38:12,379 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:38:12,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:38:12,379 INFO L82 PathProgramCache]: Analyzing trace with hash 938017428, now seen corresponding path program 1 times [2018-12-09 16:38:12,379 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 16:38:12,380 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_38e3a7b3-8c63-4a6e-b4d1-1f3efcfaff7d/bin-2019/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-12-09 16:38:12,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:38:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:38:12,472 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:38:12,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:38:12,601 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 16:38:12,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:38:12,609 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-09 16:38:12,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 16:38:12,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 16:38:12,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-12-09 16:38:12,609 INFO L87 Difference]: Start difference. First operand 37 states and 36 transitions. Second operand 11 states. [2018-12-09 16:38:13,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:38:13,081 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2018-12-09 16:38:13,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 16:38:13,081 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 36 [2018-12-09 16:38:13,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:38:13,081 INFO L225 Difference]: With dead ends: 37 [2018-12-09 16:38:13,081 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 16:38:13,082 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2018-12-09 16:38:13,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 16:38:13,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 16:38:13,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 16:38:13,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 16:38:13,082 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2018-12-09 16:38:13,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:38:13,082 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 16:38:13,082 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 16:38:13,082 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 16:38:13,082 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 16:38:13,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 16:38:13,310 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2018-12-09 16:38:13,381 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 16:38:13,381 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 16:38:13,381 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 16:38:13,381 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-12-09 16:38:13,381 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 72) no Hoare annotation was computed. [2018-12-09 16:38:13,381 INFO L448 ceAbstractionStarter]: For program point L85(lines 85 89) no Hoare annotation was computed. [2018-12-09 16:38:13,381 INFO L448 ceAbstractionStarter]: For program point L40-1(lines 40 44) no Hoare annotation was computed. [2018-12-09 16:38:13,381 INFO L444 ceAbstractionStarter]: At program point L40-2(lines 40 44) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (and (exists ((v___ieee754_logf_~ix~0_18 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) v___ieee754_logf_~ix~0_18) ((_ extract 30 23) v___ieee754_logf_~ix~0_18) ((_ extract 22 0) v___ieee754_logf_~ix~0_18)) |__ieee754_logf_#in~x|) (not (= (_ bv127 32) (bvadd (bvashr v___ieee754_logf_~ix~0_18 (_ bv23 32)) (bvneg (bvneg (bvashr (bvand (_ bv8388608 32) (bvadd (bvand (_ bv8388607 32) v___ieee754_logf_~ix~0_18) (_ bv4913952 32))) (_ bv23 32))))))))) (= |__ieee754_logf_#in~x| (fp ((_ extract 31 31) __ieee754_logf_~ix~0) ((_ extract 30 23) __ieee754_logf_~ix~0) ((_ extract 22 0) __ieee754_logf_~ix~0))))) [2018-12-09 16:38:13,381 INFO L451 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 20 96) the Hoare annotation is: true [2018-12-09 16:38:13,381 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 20 96) no Hoare annotation was computed. [2018-12-09 16:38:13,381 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 64) no Hoare annotation was computed. [2018-12-09 16:38:13,382 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-12-09 16:38:13,382 INFO L444 ceAbstractionStarter]: At program point L24-2(lines 24 28) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (= __ieee754_logf_~x |__ieee754_logf_#in~x|)) [2018-12-09 16:38:13,382 INFO L448 ceAbstractionStarter]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2018-12-09 16:38:13,382 INFO L448 ceAbstractionStarter]: For program point L49-1(lines 49 53) no Hoare annotation was computed. [2018-12-09 16:38:13,382 INFO L444 ceAbstractionStarter]: At program point L49-2(lines 49 53) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (and (= __ieee754_logf_~x |__ieee754_logf_#in~x|) (exists ((v___ieee754_logf_~ix~0_19 (_ BitVec 32))) (and (= (bvand (_ bv8388607 32) v___ieee754_logf_~ix~0_19) __ieee754_logf_~ix~0) (= (fp ((_ extract 31 31) v___ieee754_logf_~ix~0_19) ((_ extract 30 23) v___ieee754_logf_~ix~0_19) ((_ extract 22 0) v___ieee754_logf_~ix~0_19)) |__ieee754_logf_#in~x|))) (exists ((v___ieee754_logf_~ix~0_18 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) v___ieee754_logf_~ix~0_18) ((_ extract 30 23) v___ieee754_logf_~ix~0_18) ((_ extract 22 0) v___ieee754_logf_~ix~0_18)) |__ieee754_logf_#in~x|) (= (bvadd __ieee754_logf_~k~0 (_ bv127 32)) (bvashr v___ieee754_logf_~ix~0_18 (_ bv23 32))) (= (bvand (_ bv8388608 32) (bvadd (bvand (_ bv8388607 32) v___ieee754_logf_~ix~0_18) (_ bv4913952 32))) __ieee754_logf_~i~0)))) (exists ((v___ieee754_logf_~ix~0_18 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) v___ieee754_logf_~ix~0_18) ((_ extract 30 23) v___ieee754_logf_~ix~0_18) ((_ extract 22 0) v___ieee754_logf_~ix~0_18)) |__ieee754_logf_#in~x|) (not (= (_ bv127 32) (bvadd (bvashr v___ieee754_logf_~ix~0_18 (_ bv23 32)) (bvneg (bvneg (bvashr (bvand (_ bv8388608 32) (bvadd (bvand (_ bv8388607 32) v___ieee754_logf_~ix~0_18) (_ bv4913952 32))) (_ bv23 32)))))))))) [2018-12-09 16:38:13,382 INFO L448 ceAbstractionStarter]: For program point L49-3(lines 49 53) no Hoare annotation was computed. [2018-12-09 16:38:13,382 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 45) no Hoare annotation was computed. [2018-12-09 16:38:13,382 INFO L448 ceAbstractionStarter]: For program point L37-1(lines 37 45) no Hoare annotation was computed. [2018-12-09 16:38:13,382 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 71) no Hoare annotation was computed. [2018-12-09 16:38:13,382 INFO L448 ceAbstractionStarter]: For program point L33(lines 33 34) no Hoare annotation was computed. [2018-12-09 16:38:13,382 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 20 96) no Hoare annotation was computed. [2018-12-09 16:38:13,382 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 94) no Hoare annotation was computed. [2018-12-09 16:38:13,382 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 63) no Hoare annotation was computed. [2018-12-09 16:38:13,383 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 95) no Hoare annotation was computed. [2018-12-09 16:38:13,383 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-12-09 16:38:13,383 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 16:38:13,383 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ~zero_log~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) [2018-12-09 16:38:13,383 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 16:38:13,383 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 16:38:13,383 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2018-12-09 16:38:13,383 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 110 126) the Hoare annotation is: true [2018-12-09 16:38:13,383 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-12-09 16:38:13,383 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 110 126) no Hoare annotation was computed. [2018-12-09 16:38:13,383 INFO L448 ceAbstractionStarter]: For program point L120(line 120) no Hoare annotation was computed. [2018-12-09 16:38:13,383 INFO L444 ceAbstractionStarter]: At program point L120-1(line 120) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (or (not (= .cse0 ~zero_log~0)) (and (= .cse0 main_~res~0) |main_#t~short10| (= ((_ to_fp 8 24) roundNearestTiesToEven 1.0) main_~x~0)))) [2018-12-09 16:38:13,383 INFO L448 ceAbstractionStarter]: For program point L120-2(line 120) no Hoare annotation was computed. [2018-12-09 16:38:13,383 INFO L444 ceAbstractionStarter]: At program point L117(line 117) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (= ((_ to_fp 8 24) roundNearestTiesToEven 1.0) main_~x~0)) [2018-12-09 16:38:13,384 INFO L448 ceAbstractionStarter]: For program point L117-1(line 117) no Hoare annotation was computed. [2018-12-09 16:38:13,384 INFO L448 ceAbstractionStarter]: For program point L120-4(lines 120 123) no Hoare annotation was computed. [2018-12-09 16:38:13,384 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 110 126) no Hoare annotation was computed. [2018-12-09 16:38:13,384 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 98 108) no Hoare annotation was computed. [2018-12-09 16:38:13,384 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 98 108) the Hoare annotation is: true [2018-12-09 16:38:13,384 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 98 108) no Hoare annotation was computed. [2018-12-09 16:38:13,384 INFO L448 ceAbstractionStarter]: For program point L101-1(lines 101 105) no Hoare annotation was computed. [2018-12-09 16:38:13,384 INFO L444 ceAbstractionStarter]: At program point L101-2(lines 101 105) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (= |__signbit_float_#in~x| __signbit_float_~x)) [2018-12-09 16:38:13,384 INFO L448 ceAbstractionStarter]: For program point L101-3(lines 101 105) no Hoare annotation was computed. [2018-12-09 16:38:13,387 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:446) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:135) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:105) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:560) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:257) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:214) 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) [2018-12-09 16:38:13,388 INFO L168 Benchmark]: Toolchain (without parser) took 170691.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -107.2 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. [2018-12-09 16:38:13,389 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:38:13,389 INFO L168 Benchmark]: CACSL2BoogieTranslator took 170.86 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 927.3 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-12-09 16:38:13,389 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.36 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:38:13,389 INFO L168 Benchmark]: Boogie Preprocessor took 63.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -211.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-12-09 16:38:13,390 INFO L168 Benchmark]: RCFGBuilder took 11310.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. [2018-12-09 16:38:13,390 INFO L168 Benchmark]: TraceAbstraction took 159127.55 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -3.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.6 MB). Peak memory consumption was 47.9 MB. Max. memory is 11.5 GB. [2018-12-09 16:38:13,392 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 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 170.86 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 927.3 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.36 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -211.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 11310.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 159127.55 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -3.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.6 MB). Peak memory consumption was 47.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: 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 - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...