./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.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_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/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 8c97aae237a76dbf85532dc8d030e712982e570a ................................................................................................................................................................................................................................................ 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_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/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 8c97aae237a76dbf85532dc8d030e712982e570a ....................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 23:46:28,641 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 23:46:28,642 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 23:46:28,649 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 23:46:28,649 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 23:46:28,649 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 23:46:28,650 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 23:46:28,651 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 23:46:28,652 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 23:46:28,652 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 23:46:28,653 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 23:46:28,653 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 23:46:28,653 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 23:46:28,654 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 23:46:28,654 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 23:46:28,655 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 23:46:28,655 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 23:46:28,656 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 23:46:28,657 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 23:46:28,658 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 23:46:28,658 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 23:46:28,659 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 23:46:28,660 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 23:46:28,660 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 23:46:28,660 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 23:46:28,661 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 23:46:28,661 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 23:46:28,662 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 23:46:28,662 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 23:46:28,663 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 23:46:28,663 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 23:46:28,663 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 23:46:28,663 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 23:46:28,664 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 23:46:28,664 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 23:46:28,665 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 23:46:28,665 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 23:46:28,672 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 23:46:28,672 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 23:46:28,673 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 23:46:28,673 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 23:46:28,673 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 23:46:28,673 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 23:46:28,673 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 23:46:28,673 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 23:46:28,673 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 23:46:28,674 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 23:46:28,674 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 23:46:28,674 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 23:46:28,674 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 23:46:28,674 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 23:46:28,674 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 23:46:28,675 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 23:46:28,675 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 23:46:28,675 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 23:46:28,675 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 23:46:28,675 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 23:46:28,675 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 23:46:28,675 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 23:46:28,675 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 23:46:28,676 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 23:46:28,676 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 23:46:28,676 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 23:46:28,676 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 23:46:28,676 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 23:46:28,676 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 23:46:28,676 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 23:46:28,677 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 23:46:28,677 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 23:46:28,677 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 23:46:28,677 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 23:46:28,677 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 23:46:28,677 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 23:46:28,677 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_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/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 -> 8c97aae237a76dbf85532dc8d030e712982e570a [2018-12-08 23:46:28,695 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 23:46:28,704 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 23:46:28,707 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 23:46:28,708 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 23:46:28,708 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 23:46:28,709 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2018-12-08 23:46:28,751 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/data/3e87426b3/76a1b86a450a4a31ba5a0bfe2b3268af/FLAG0277415e6 [2018-12-08 23:46:29,099 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 23:46:29,099 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2018-12-08 23:46:29,103 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/data/3e87426b3/76a1b86a450a4a31ba5a0bfe2b3268af/FLAG0277415e6 [2018-12-08 23:46:29,111 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/data/3e87426b3/76a1b86a450a4a31ba5a0bfe2b3268af [2018-12-08 23:46:29,113 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 23:46:29,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 23:46:29,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 23:46:29,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 23:46:29,116 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 23:46:29,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:46:29" (1/1) ... [2018-12-08 23:46:29,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba821c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:29, skipping insertion in model container [2018-12-08 23:46:29,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:46:29" (1/1) ... [2018-12-08 23:46:29,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 23:46:29,130 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 23:46:29,211 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:46:29,214 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 23:46:29,222 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:46:29,230 INFO L195 MainTranslator]: Completed translation [2018-12-08 23:46:29,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:29 WrapperNode [2018-12-08 23:46:29,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 23:46:29,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 23:46:29,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 23:46:29,231 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 23:46:29,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:29" (1/1) ... [2018-12-08 23:46:29,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:29" (1/1) ... [2018-12-08 23:46:29,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 23:46:29,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 23:46:29,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 23:46:29,243 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 23:46:29,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:29" (1/1) ... [2018-12-08 23:46:29,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:29" (1/1) ... [2018-12-08 23:46:29,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:29" (1/1) ... [2018-12-08 23:46:29,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:29" (1/1) ... [2018-12-08 23:46:29,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:29" (1/1) ... [2018-12-08 23:46:29,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:29" (1/1) ... [2018-12-08 23:46:29,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:29" (1/1) ... [2018-12-08 23:46:29,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 23:46:29,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 23:46:29,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 23:46:29,255 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 23:46:29,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/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 [2018-12-08 23:46:29,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 23:46:29,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 23:46:29,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 23:46:29,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 23:46:29,315 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 23:46:29,315 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 23:46:29,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-08 23:46:29,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-08 23:46:29,397 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 23:46:29,398 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 23:46:29,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:46:29 BoogieIcfgContainer [2018-12-08 23:46:29,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 23:46:29,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 23:46:29,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 23:46:29,400 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 23:46:29,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 11:46:29" (1/3) ... [2018-12-08 23:46:29,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2af4a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:46:29, skipping insertion in model container [2018-12-08 23:46:29,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:29" (2/3) ... [2018-12-08 23:46:29,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2af4a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:46:29, skipping insertion in model container [2018-12-08 23:46:29,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:46:29" (3/3) ... [2018-12-08 23:46:29,402 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_loose_true-unreach-call_true-termination.c [2018-12-08 23:46:29,408 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 23:46:29,412 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 23:46:29,422 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 23:46:29,440 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 23:46:29,440 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 23:46:29,440 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 23:46:29,440 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 23:46:29,440 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 23:46:29,440 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 23:46:29,441 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 23:46:29,441 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 23:46:29,451 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-08 23:46:29,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 23:46:29,454 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:46:29,455 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:46:29,456 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:46:29,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:46:29,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-12-08 23:46:29,461 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:46:29,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:46:29,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:46:29,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:46:29,489 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:46:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:46:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:46:29,526 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 23:46:29,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 11:46:29 BoogieIcfgContainer [2018-12-08 23:46:29,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 23:46:29,541 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 23:46:29,541 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 23:46:29,541 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 23:46:29,541 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:46:29" (3/4) ... [2018-12-08 23:46:29,543 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 23:46:29,543 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 23:46:29,544 INFO L168 Benchmark]: Toolchain (without parser) took 430.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.6 MB). Free memory was 957.8 MB in the beginning and 1.0 GB in the end (delta: -89.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:46:29,545 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:46:29,545 INFO L168 Benchmark]: CACSL2BoogieTranslator took 116.59 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 23:46:29,546 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.09 ms. Allocated memory is still 1.0 GB. Free memory is still 947.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:46:29,546 INFO L168 Benchmark]: Boogie Preprocessor took 11.36 ms. Allocated memory is still 1.0 GB. Free memory is still 947.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:46:29,546 INFO L168 Benchmark]: RCFGBuilder took 143.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -107.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-12-08 23:46:29,547 INFO L168 Benchmark]: TraceAbstraction took 141.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2018-12-08 23:46:29,547 INFO L168 Benchmark]: Witness Printer took 2.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:46:29,549 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 116.59 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.09 ms. Allocated memory is still 1.0 GB. Free memory is still 947.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.36 ms. Allocated memory is still 1.0 GB. Free memory is still 947.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 143.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -107.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 141.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 19. Possible FailurePath: [L13] double x,y; [L15] x = __VERIFIER_nondet_double() [L18] y = x*x - x VAL [x=2] [L19] COND TRUE y >= 0 [L19] y = x / 10. VAL [x=2] [L22] CALL __VERIFIER_assert(y >= 0. && y <= 105.) VAL [\old(cond)=0] [L9] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2018-12-08 23:46:30,882 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 23:46:30,883 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 23:46:30,890 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 23:46:30,890 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 23:46:30,891 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 23:46:30,892 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 23:46:30,893 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 23:46:30,894 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 23:46:30,894 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 23:46:30,895 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 23:46:30,895 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 23:46:30,895 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 23:46:30,896 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 23:46:30,896 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 23:46:30,897 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 23:46:30,897 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 23:46:30,898 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 23:46:30,899 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 23:46:30,900 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 23:46:30,901 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 23:46:30,901 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 23:46:30,902 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 23:46:30,902 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 23:46:30,902 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 23:46:30,903 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 23:46:30,903 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 23:46:30,903 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 23:46:30,904 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 23:46:30,905 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 23:46:30,905 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 23:46:30,905 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 23:46:30,905 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 23:46:30,906 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 23:46:30,906 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 23:46:30,906 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 23:46:30,907 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-08 23:46:30,916 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 23:46:30,916 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 23:46:30,917 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 23:46:30,917 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 23:46:30,917 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 23:46:30,917 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 23:46:30,917 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 23:46:30,917 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 23:46:30,918 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 23:46:30,918 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 23:46:30,918 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 23:46:30,919 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 23:46:30,919 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 23:46:30,919 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 23:46:30,919 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 23:46:30,919 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 23:46:30,919 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 23:46:30,919 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 23:46:30,920 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 23:46:30,920 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 23:46:30,920 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 23:46:30,920 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 23:46:30,920 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 23:46:30,920 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 23:46:30,921 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 23:46:30,921 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 23:46:30,921 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 23:46:30,921 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 23:46:30,921 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 23:46:30,921 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 23:46:30,921 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 23:46:30,922 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-08 23:46:30,922 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 23:46:30,922 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 23:46:30,922 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 23:46:30,922 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_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/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 -> 8c97aae237a76dbf85532dc8d030e712982e570a [2018-12-08 23:46:30,946 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 23:46:30,954 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 23:46:30,956 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 23:46:30,957 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 23:46:30,957 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 23:46:30,958 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2018-12-08 23:46:30,995 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/data/d67813d61/02c971d288ee4accbc440036aca81aeb/FLAGb7fda46cc [2018-12-08 23:46:31,413 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 23:46:31,413 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2018-12-08 23:46:31,417 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/data/d67813d61/02c971d288ee4accbc440036aca81aeb/FLAGb7fda46cc [2018-12-08 23:46:31,425 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/data/d67813d61/02c971d288ee4accbc440036aca81aeb [2018-12-08 23:46:31,426 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 23:46:31,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 23:46:31,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 23:46:31,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 23:46:31,429 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 23:46:31,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:46:31" (1/1) ... [2018-12-08 23:46:31,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b3325a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:31, skipping insertion in model container [2018-12-08 23:46:31,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:46:31" (1/1) ... [2018-12-08 23:46:31,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 23:46:31,444 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 23:46:31,528 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:46:31,531 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 23:46:31,540 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:46:31,549 INFO L195 MainTranslator]: Completed translation [2018-12-08 23:46:31,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:31 WrapperNode [2018-12-08 23:46:31,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 23:46:31,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 23:46:31,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 23:46:31,550 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 23:46:31,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:31" (1/1) ... [2018-12-08 23:46:31,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:31" (1/1) ... [2018-12-08 23:46:31,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 23:46:31,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 23:46:31,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 23:46:31,563 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 23:46:31,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:31" (1/1) ... [2018-12-08 23:46:31,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:31" (1/1) ... [2018-12-08 23:46:31,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:31" (1/1) ... [2018-12-08 23:46:31,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:31" (1/1) ... [2018-12-08 23:46:31,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:31" (1/1) ... [2018-12-08 23:46:31,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:31" (1/1) ... [2018-12-08 23:46:31,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:31" (1/1) ... [2018-12-08 23:46:31,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 23:46:31,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 23:46:31,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 23:46:31,577 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 23:46:31,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/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 [2018-12-08 23:46:31,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 23:46:31,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 23:46:31,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 23:46:31,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 23:46:31,638 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 23:46:31,638 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 23:46:31,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-08 23:46:31,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-08 23:46:34,686 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 23:46:34,686 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 23:46:34,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:46:34 BoogieIcfgContainer [2018-12-08 23:46:34,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 23:46:34,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 23:46:34,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 23:46:34,688 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 23:46:34,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 11:46:31" (1/3) ... [2018-12-08 23:46:34,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42cd5400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:46:34, skipping insertion in model container [2018-12-08 23:46:34,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:46:31" (2/3) ... [2018-12-08 23:46:34,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42cd5400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:46:34, skipping insertion in model container [2018-12-08 23:46:34,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:46:34" (3/3) ... [2018-12-08 23:46:34,690 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_loose_true-unreach-call_true-termination.c [2018-12-08 23:46:34,696 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 23:46:34,699 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 23:46:34,708 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 23:46:34,724 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 23:46:34,725 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 23:46:34,725 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 23:46:34,725 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 23:46:34,725 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 23:46:34,725 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 23:46:34,725 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 23:46:34,725 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 23:46:34,725 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 23:46:34,734 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-08 23:46:34,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 23:46:34,737 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:46:34,738 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:46:34,739 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:46:34,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:46:34,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-12-08 23:46:34,744 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 23:46:34,745 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/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 [2018-12-08 23:46:34,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:46:35,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:46:35,159 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:46:38,632 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (= (fp.div roundNearestTiesToEven main_~x~0 .cse0) c_main_~y~0) (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53))))) is different from true [2018-12-08 23:46:56,170 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_3 .cse0) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_3 .cse0) (_ +zero 11 53)))))) .cse1) (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (and (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse2) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_1 .cse2) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))))) .cse1))) is different from false [2018-12-08 23:47:07,296 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_3 .cse1) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_3 .cse1) (_ +zero 11 53))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (and .cse0 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse2) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_1 .cse2) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))))))))) is different from false [2018-12-08 23:47:18,429 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_3 .cse0) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_3 .cse0) (_ +zero 11 53)))))) (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse1) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_1 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))))))) is different from false [2018-12-08 23:47:20,615 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_3 .cse0) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_3 .cse0) (_ +zero 11 53)))))) (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse1) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_1 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))))))) is different from true [2018-12-08 23:47:20,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:47:20,618 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 23:47:20,630 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:47:20,630 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 23:47:20,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 23:47:20,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 23:47:20,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=6, Unknown=5, NotChecked=20, Total=42 [2018-12-08 23:47:20,642 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 7 states. [2018-12-08 23:47:33,577 WARN L180 SmtUtils]: Spent 8.08 s on a formula simplification that was a NOOP. DAG size: 13 [2018-12-08 23:47:34,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:47:34,668 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-12-08 23:47:34,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 23:47:34,847 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-12-08 23:47:34,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:47:34,853 INFO L225 Difference]: With dead ends: 30 [2018-12-08 23:47:34,853 INFO L226 Difference]: Without dead ends: 11 [2018-12-08 23:47:34,856 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=14, Invalid=8, Unknown=6, NotChecked=28, Total=56 [2018-12-08 23:47:34,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-12-08 23:47:34,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-12-08 23:47:34,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-08 23:47:34,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2018-12-08 23:47:34,881 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 10 [2018-12-08 23:47:34,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:47:34,881 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2018-12-08 23:47:34,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 23:47:34,882 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2018-12-08 23:47:34,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 23:47:34,882 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:47:34,882 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:47:34,883 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:47:34,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:34,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1734924095, now seen corresponding path program 1 times [2018-12-08 23:47:34,883 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 23:47:34,883 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/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 [2018-12-08 23:47:34,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:47:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:35,289 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:47:44,664 WARN L180 SmtUtils]: Spent 8.67 s on a formula simplification that was a NOOP. DAG size: 12 [2018-12-08 23:47:46,708 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (= (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) c_main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from false [2018-12-08 23:47:48,745 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (= (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) c_main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from true [2018-12-08 23:48:05,191 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse2 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (let ((.cse0 (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.geq .cse0 (_ +zero 11 53)) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))))) (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32))) (and .cse2 (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul roundNearestTiesToEven v_prenex_7 v_prenex_7))) (and (fp.geq v_prenex_7 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse3 v_prenex_7) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.leq (fp.add roundNearestTiesToEven .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq v_prenex_7 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))) (and (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.geq (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53)))))) .cse2))) is different from false [2018-12-08 23:48:19,613 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_7 v_prenex_7))) (and (fp.geq v_prenex_7 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_7) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.leq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq v_prenex_7 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))) (and .cse0 (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse2 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse2 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.geq (fp.add roundNearestTiesToEven .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))))))) (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (let ((.cse3 (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.geq .cse3 (_ +zero 11 53)) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))))) is different from false [2018-12-08 23:48:29,891 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.geq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53)))))) (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_7 v_prenex_7))) (and (fp.geq v_prenex_7 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_7) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.leq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq v_prenex_7 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))) is different from false [2018-12-08 23:48:31,934 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.geq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53)))))) (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_7 v_prenex_7))) (and (fp.geq v_prenex_7 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_7) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.leq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq v_prenex_7 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))) is different from true [2018-12-08 23:48:31,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:48:31,936 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 23:48:31,948 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:48:31,948 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 23:48:31,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 23:48:31,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 23:48:31,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-12-08 23:48:31,949 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 7 states. [2018-12-08 23:48:34,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:48:34,028 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2018-12-08 23:48:34,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 23:48:34,075 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-12-08 23:48:34,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:48:34,075 INFO L225 Difference]: With dead ends: 11 [2018-12-08 23:48:34,075 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 23:48:34,076 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.8s TimeCoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-12-08 23:48:34,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 23:48:34,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 23:48:34,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 23:48:34,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 23:48:34,077 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-12-08 23:48:34,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:48:34,077 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 23:48:34,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 23:48:34,077 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 23:48:34,077 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 23:48:34,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 23:49:01,243 WARN L180 SmtUtils]: Spent 27.13 s on a formula simplification that was a NOOP. DAG size: 27 [2018-12-08 23:49:02,496 WARN L180 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 106 DAG size of output: 1 [2018-12-08 23:49:02,498 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-08 23:49:02,498 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 23:49:02,498 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 23:49:02,498 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 23:49:02,498 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 23:49:02,499 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 23:49:02,499 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 20) the Hoare annotation is: (let ((.cse0 (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (.cse1 (fp.geq main_~x~0 (_ +zero 11 53)))) (or (and .cse0 .cse1 (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse2 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (= (fp.add roundNearestTiesToEven .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse2 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (= (fp.div roundNearestTiesToEven main_~x~0 .cse3) main_~y~0) (fp.leq main_~x~0 .cse3) (fp.geq main_~x~0 (_ +zero 11 53))))) .cse0 .cse1))) [2018-12-08 23:49:02,499 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 11 24) the Hoare annotation is: true [2018-12-08 23:49:02,499 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 11 24) no Hoare annotation was computed. [2018-12-08 23:49:02,499 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 11 24) no Hoare annotation was computed. [2018-12-08 23:49:02,499 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-08 23:49:02,499 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-12-08 23:49:02,499 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 9) the Hoare annotation is: true [2018-12-08 23:49:02,500 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 9) no Hoare annotation was computed. [2018-12-08 23:49:02,500 INFO L448 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2018-12-08 23:49:02,500 INFO L448 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2018-12-08 23:49:02,500 INFO L448 ceAbstractionStarter]: For program point L9-3(line 9) no Hoare annotation was computed. [2018-12-08 23:49:02,500 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2018-12-08 23:49:02,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 11:49:02 BoogieIcfgContainer [2018-12-08 23:49:02,502 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 23:49:02,503 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 23:49:02,503 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 23:49:02,503 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 23:49:02,503 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:46:34" (3/4) ... [2018-12-08 23:49:02,506 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 23:49:02,511 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 23:49:02,511 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 23:49:02,511 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-08 23:49:02,514 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-08 23:49:02,514 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 23:49:02,514 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 23:49:02,538 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ee7a14b4-0ed5-481f-a763-c43fa14ab3e7/bin-2019/utaipan/witness.graphml [2018-12-08 23:49:02,538 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 23:49:02,538 INFO L168 Benchmark]: Toolchain (without parser) took 151111.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -91.7 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. [2018-12-08 23:49:02,539 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:49:02,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 121.98 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 23:49:02,539 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.18 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:49:02,539 INFO L168 Benchmark]: Boogie Preprocessor took 13.59 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 23:49:02,540 INFO L168 Benchmark]: RCFGBuilder took 3109.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-12-08 23:49:02,540 INFO L168 Benchmark]: TraceAbstraction took 147815.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.8 MB). Peak memory consumption was 64.8 MB. Max. memory is 11.5 GB. [2018-12-08 23:49:02,540 INFO L168 Benchmark]: Witness Printer took 35.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:49:02,542 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 121.98 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.18 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.59 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3109.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 147815.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.8 MB). Peak memory consumption was 64.8 MB. Max. memory is 11.5 GB. * Witness Printer took 35.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 147.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 16.3s AutomataDifference, 0.0s DeadEndRemovalTime, 28.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 4 SDslu, 51 SDs, 0 SdLazy, 2 SolverSat, 1 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 75 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 381 FormulaSimplificationTreeSizeReductionInter, 28.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 102.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 8 QuantifiedInterpolants, 5112 SizeOfPredicates, 6 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...