./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d57b69a18e01217b153b00cc1c03d5a7a42828b ............................................................................................................................................................................................................................................................................ 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_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d57b69a18e01217b153b00cc1c03d5a7a42828b ......................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 07:40:23,102 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:40:23,103 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:40:23,113 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:40:23,113 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:40:23,114 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:40:23,115 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:40:23,116 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:40:23,117 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:40:23,118 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:40:23,119 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:40:23,119 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:40:23,120 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:40:23,121 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:40:23,122 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:40:23,122 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:40:23,123 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:40:23,125 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:40:23,126 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:40:23,128 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:40:23,129 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:40:23,130 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:40:23,132 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:40:23,132 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:40:23,132 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:40:23,133 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:40:23,134 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:40:23,135 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:40:23,135 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:40:23,136 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:40:23,137 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:40:23,137 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:40:23,137 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:40:23,138 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:40:23,139 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:40:23,139 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:40:23,140 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 07:40:23,152 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:40:23,153 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:40:23,153 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:40:23,153 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:40:23,154 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:40:23,154 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:40:23,154 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:40:23,155 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:40:23,155 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:40:23,155 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:40:23,155 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:40:23,155 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:40:23,156 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:40:23,156 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:40:23,156 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:40:23,156 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:40:23,156 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:40:23,156 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:40:23,157 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:40:23,157 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:40:23,157 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:40:23,157 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:40:23,157 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:40:23,158 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:40:23,158 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:40:23,158 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:40:23,158 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 07:40:23,158 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:40:23,159 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:40:23,159 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_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d57b69a18e01217b153b00cc1c03d5a7a42828b [2018-11-10 07:40:23,185 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:40:23,194 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:40:23,197 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:40:23,198 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:40:23,198 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:40:23,199 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c [2018-11-10 07:40:23,244 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/data/51a26b855/ed7731e8828f4ceeae22ef0af89da705/FLAG747e195bf [2018-11-10 07:40:23,595 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:40:23,595 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/sv-benchmarks/c/float-benchs/loop_true-unreach-call.c [2018-11-10 07:40:23,600 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/data/51a26b855/ed7731e8828f4ceeae22ef0af89da705/FLAG747e195bf [2018-11-10 07:40:23,612 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/data/51a26b855/ed7731e8828f4ceeae22ef0af89da705 [2018-11-10 07:40:23,615 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:40:23,617 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 07:40:23,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:40:23,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:40:23,622 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:40:23,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:40:23" (1/1) ... [2018-11-10 07:40:23,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ac897aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:23, skipping insertion in model container [2018-11-10 07:40:23,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:40:23" (1/1) ... [2018-11-10 07:40:23,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:40:23,647 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:40:23,754 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:40:23,757 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:40:23,768 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:40:23,782 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:40:23,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:23 WrapperNode [2018-11-10 07:40:23,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:40:23,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:40:23,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:40:23,783 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:40:23,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:23" (1/1) ... [2018-11-10 07:40:23,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:23" (1/1) ... [2018-11-10 07:40:23,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:23" (1/1) ... [2018-11-10 07:40:23,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:23" (1/1) ... [2018-11-10 07:40:23,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:23" (1/1) ... [2018-11-10 07:40:23,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:23" (1/1) ... [2018-11-10 07:40:23,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:23" (1/1) ... [2018-11-10 07:40:23,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:40:23,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:40:23,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:40:23,808 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:40:23,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:40:23,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:40:23,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:40:23,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 07:40:23,904 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:40:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 07:40:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 07:40:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:40:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:40:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:40:24,029 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:40:24,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:40:24 BoogieIcfgContainer [2018-11-10 07:40:24,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:40:24,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:40:24,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:40:24,033 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:40:24,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:40:23" (1/3) ... [2018-11-10 07:40:24,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d31c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:40:24, skipping insertion in model container [2018-11-10 07:40:24,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:23" (2/3) ... [2018-11-10 07:40:24,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d31c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:40:24, skipping insertion in model container [2018-11-10 07:40:24,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:40:24" (3/3) ... [2018-11-10 07:40:24,036 INFO L112 eAbstractionObserver]: Analyzing ICFG loop_true-unreach-call.c [2018-11-10 07:40:24,044 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:40:24,051 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:40:24,069 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:40:24,101 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:40:24,102 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:40:24,102 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:40:24,102 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:40:24,102 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:40:24,102 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:40:24,103 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:40:24,103 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:40:24,103 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:40:24,121 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-10 07:40:24,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 07:40:24,127 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:40:24,128 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:40:24,130 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:40:24,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:40:24,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1871509567, now seen corresponding path program 1 times [2018-11-10 07:40:24,138 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:40:24,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:40:24,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:40:24,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:40:24,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:40:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:40:24,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:40:24,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:40:24,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 07:40:24,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 07:40:24,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 07:40:24,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 07:40:24,253 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2018-11-10 07:40:24,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:40:24,271 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2018-11-10 07:40:24,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 07:40:24,272 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-10 07:40:24,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:40:24,280 INFO L225 Difference]: With dead ends: 31 [2018-11-10 07:40:24,281 INFO L226 Difference]: Without dead ends: 12 [2018-11-10 07:40:24,284 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 07:40:24,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-10 07:40:24,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-10 07:40:24,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-10 07:40:24,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-11-10 07:40:24,312 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-11-10 07:40:24,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:40:24,312 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-11-10 07:40:24,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 07:40:24,312 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-10 07:40:24,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 07:40:24,313 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:40:24,313 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:40:24,313 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:40:24,313 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:40:24,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1861991801, now seen corresponding path program 1 times [2018-11-10 07:40:24,313 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:40:24,314 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:40:24,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:40:24,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:40:24,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:40:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:40:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:40:24,350 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 07:40:24,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:40:24 BoogieIcfgContainer [2018-11-10 07:40:24,367 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:40:24,367 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:40:24,367 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:40:24,367 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:40:24,368 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:40:24" (3/4) ... [2018-11-10 07:40:24,371 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 07:40:24,371 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:40:24,372 INFO L168 Benchmark]: Toolchain (without parser) took 755.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -172.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:40:24,374 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:40:24,374 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.73 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:40:24,375 INFO L168 Benchmark]: Boogie Preprocessor took 24.71 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:40:24,375 INFO L168 Benchmark]: RCFGBuilder took 222.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 948.5 MB in the beginning and 1.2 GB in the end (delta: -210.5 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2018-11-10 07:40:24,376 INFO L168 Benchmark]: TraceAbstraction took 336.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:40:24,377 INFO L168 Benchmark]: Witness Printer took 3.77 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. [2018-11-10 07:40:24,380 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 164.73 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.71 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 222.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 948.5 MB in the beginning and 1.2 GB in the end (delta: -210.5 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 336.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.77 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: 2]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12. Possible FailurePath: [L6] float x, y, z; [L8] x = 1.f [L9] y = 1e7 [L10] z = 42.f VAL [x=1, y=10000000, z=42] [L12] COND FALSE !(x < y) VAL [x=1, y=10000000, z=42] [L18] CALL __VERIFIER_assert(z >= 0.f && z <= 1e8) VAL [\old(cond)=0] [L2] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L2] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 19 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=19occurred 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 0.1.23-1dbac8b [2018-11-10 07:40:25,988 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:40:25,990 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:40:25,999 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:40:25,999 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:40:26,000 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:40:26,001 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:40:26,003 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:40:26,004 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:40:26,005 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:40:26,006 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:40:26,006 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:40:26,007 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:40:26,008 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:40:26,009 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:40:26,009 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:40:26,010 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:40:26,012 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:40:26,013 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:40:26,015 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:40:26,016 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:40:26,017 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:40:26,019 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:40:26,019 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:40:26,019 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:40:26,020 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:40:26,021 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:40:26,022 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:40:26,023 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:40:26,024 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:40:26,024 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:40:26,024 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:40:26,025 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:40:26,025 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:40:26,026 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:40:26,026 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:40:26,027 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-10 07:40:26,039 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:40:26,039 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:40:26,040 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:40:26,040 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:40:26,041 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:40:26,041 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:40:26,041 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:40:26,041 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:40:26,042 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:40:26,042 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:40:26,042 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:40:26,042 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:40:26,042 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:40:26,042 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:40:26,043 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 07:40:26,043 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 07:40:26,043 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:40:26,043 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:40:26,043 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:40:26,043 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:40:26,043 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:40:26,044 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:40:26,044 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:40:26,044 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:40:26,044 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:40:26,044 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:40:26,045 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:40:26,045 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-10 07:40:26,045 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:40:26,045 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 07:40:26,045 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 07:40:26,045 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_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d57b69a18e01217b153b00cc1c03d5a7a42828b [2018-11-10 07:40:26,078 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:40:26,087 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:40:26,090 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:40:26,091 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:40:26,091 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:40:26,092 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c [2018-11-10 07:40:26,136 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/data/a2e69c0f6/d5744776c2c64bd08367543d7ec3fda8/FLAG40a1289d8 [2018-11-10 07:40:26,479 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:40:26,480 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/sv-benchmarks/c/float-benchs/loop_true-unreach-call.c [2018-11-10 07:40:26,484 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/data/a2e69c0f6/d5744776c2c64bd08367543d7ec3fda8/FLAG40a1289d8 [2018-11-10 07:40:26,494 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/data/a2e69c0f6/d5744776c2c64bd08367543d7ec3fda8 [2018-11-10 07:40:26,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:40:26,498 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 07:40:26,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:40:26,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:40:26,502 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:40:26,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:40:26" (1/1) ... [2018-11-10 07:40:26,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b1e68f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:26, skipping insertion in model container [2018-11-10 07:40:26,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:40:26" (1/1) ... [2018-11-10 07:40:26,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:40:26,531 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:40:26,657 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:40:26,662 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:40:26,676 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:40:26,687 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:40:26,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:26 WrapperNode [2018-11-10 07:40:26,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:40:26,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:40:26,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:40:26,688 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:40:26,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:26" (1/1) ... [2018-11-10 07:40:26,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:26" (1/1) ... [2018-11-10 07:40:26,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:26" (1/1) ... [2018-11-10 07:40:26,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:26" (1/1) ... [2018-11-10 07:40:26,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:26" (1/1) ... [2018-11-10 07:40:26,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:26" (1/1) ... [2018-11-10 07:40:26,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:26" (1/1) ... [2018-11-10 07:40:26,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:40:26,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:40:26,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:40:26,716 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:40:26,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:40:26,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:40:26,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:40:26,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 07:40:26,764 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:40:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 07:40:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 07:40:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:40:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:40:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:40:27,381 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:40:27,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:40:27 BoogieIcfgContainer [2018-11-10 07:40:27,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:40:27,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:40:27,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:40:27,384 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:40:27,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:40:26" (1/3) ... [2018-11-10 07:40:27,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58407c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:40:27, skipping insertion in model container [2018-11-10 07:40:27,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:40:26" (2/3) ... [2018-11-10 07:40:27,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58407c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:40:27, skipping insertion in model container [2018-11-10 07:40:27,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:40:27" (3/3) ... [2018-11-10 07:40:27,387 INFO L112 eAbstractionObserver]: Analyzing ICFG loop_true-unreach-call.c [2018-11-10 07:40:27,395 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:40:27,400 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:40:27,411 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:40:27,433 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:40:27,433 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:40:27,434 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:40:27,434 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:40:27,434 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:40:27,434 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:40:27,434 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:40:27,434 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:40:27,434 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:40:27,448 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-10 07:40:27,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 07:40:27,452 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:40:27,453 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:40:27,455 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:40:27,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:40:27,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1871509567, now seen corresponding path program 1 times [2018-11-10 07:40:27,463 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:40:27,463 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 07:40:27,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:40:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:40:27,504 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:40:27,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:40:27,516 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:40:27,525 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:40:27,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 07:40:27,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 07:40:27,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 07:40:27,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 07:40:27,540 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2018-11-10 07:40:27,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:40:27,558 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2018-11-10 07:40:27,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 07:40:27,560 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-10 07:40:27,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:40:27,569 INFO L225 Difference]: With dead ends: 31 [2018-11-10 07:40:27,569 INFO L226 Difference]: Without dead ends: 12 [2018-11-10 07:40:27,573 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 07:40:27,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-10 07:40:27,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-10 07:40:27,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-10 07:40:27,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-11-10 07:40:27,609 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-11-10 07:40:27,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:40:27,609 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-11-10 07:40:27,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 07:40:27,610 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-10 07:40:27,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 07:40:27,610 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:40:27,610 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:40:27,611 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:40:27,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:40:27,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1861991801, now seen corresponding path program 1 times [2018-11-10 07:40:27,612 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:40:27,612 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-10 07:40:27,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:40:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:40:27,646 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:40:27,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:40:27,704 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:40:27,717 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:40:27,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 07:40:27,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 07:40:27,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 07:40:27,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 07:40:27,719 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2018-11-10 07:40:27,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:40:27,956 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-11-10 07:40:27,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 07:40:27,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-10 07:40:27,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:40:27,958 INFO L225 Difference]: With dead ends: 19 [2018-11-10 07:40:27,958 INFO L226 Difference]: Without dead ends: 14 [2018-11-10 07:40:27,959 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 07:40:27,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-10 07:40:27,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-10 07:40:27,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-10 07:40:27,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-11-10 07:40:27,962 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-11-10 07:40:27,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:40:27,962 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-11-10 07:40:27,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 07:40:27,962 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-10 07:40:27,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 07:40:27,963 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:40:27,963 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:40:27,963 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:40:27,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:40:27,963 INFO L82 PathProgramCache]: Analyzing trace with hash -661808769, now seen corresponding path program 1 times [2018-11-10 07:40:27,964 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:40:27,964 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-10 07:40:27,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:40:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:40:28,047 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:40:28,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:40:28,088 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:40:32,019 WARN L179 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-10 07:40:32,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:40:32,040 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 07:40:32,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-11-10 07:40:32,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 07:40:32,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 07:40:32,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2018-11-10 07:40:32,041 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 6 states. [2018-11-10 07:40:39,867 WARN L179 SmtUtils]: Spent 3.14 s on a formula simplification that was a NOOP. DAG size: 10 [2018-11-10 07:40:44,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:40:44,030 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2018-11-10 07:40:44,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 07:40:44,031 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-10 07:40:44,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:40:44,032 INFO L225 Difference]: With dead ends: 25 [2018-11-10 07:40:44,032 INFO L226 Difference]: Without dead ends: 20 [2018-11-10 07:40:44,033 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=19, Invalid=21, Unknown=2, NotChecked=0, Total=42 [2018-11-10 07:40:44,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-10 07:40:44,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-10 07:40:44,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 07:40:44,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-11-10 07:40:44,038 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 13 [2018-11-10 07:40:44,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:40:44,038 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-11-10 07:40:44,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 07:40:44,038 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-11-10 07:40:44,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 07:40:44,039 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:40:44,039 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:40:44,039 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:40:44,040 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:40:44,040 INFO L82 PathProgramCache]: Analyzing trace with hash -875350895, now seen corresponding path program 2 times [2018-11-10 07:40:44,040 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:40:44,040 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-10 07:40:44,044 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-10 07:40:44,300 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 07:40:44,300 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 07:40:44,326 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:40:44,440 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:40:44,440 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:40:45,766 WARN L179 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-11-10 07:40:53,716 WARN L179 SmtUtils]: Spent 1.94 s on a formula simplification that was a NOOP. DAG size: 12 [2018-11-10 07:41:12,943 WARN L179 SmtUtils]: Spent 4.48 s on a formula simplification that was a NOOP. DAG size: 13 [2018-11-10 07:41:16,165 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse1 ((_ to_fp 8 24) RNE 1.0))) (fp.add RNE (fp.add RNE (fp.add RNE c_main_~z~0 .cse1) .cse1) .cse1)))) (and (fp.leq ((_ to_fp 11 53) RNE .cse0) ((_ to_fp 11 53) RNE 100000000.0)) (fp.geq .cse0 (_ +zero 8 24)))) is different from true [2018-11-10 07:41:18,191 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse1 ((_ to_fp 8 24) RNE 1.0))) (fp.add RNE (fp.add RNE (fp.add RNE (fp.add RNE c_main_~z~0 .cse1) .cse1) .cse1) .cse1)))) (and (fp.leq ((_ to_fp 11 53) RNE .cse0) ((_ to_fp 11 53) RNE 100000000.0)) (fp.geq .cse0 (_ +zero 8 24)))) is different from false [2018-11-10 07:41:19,697 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 4 times theorem prover too weak. 0 trivial. 14 not checked. [2018-11-10 07:41:19,709 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 07:41:19,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-11-10 07:41:19,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-10 07:41:19,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-10 07:41:19,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=138, Unknown=5, NotChecked=50, Total=240 [2018-11-10 07:41:19,711 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 16 states. [2018-11-10 07:41:47,517 WARN L179 SmtUtils]: Spent 13.10 s on a formula simplification. DAG size of input: 15 DAG size of output: 12 [2018-11-10 07:41:53,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:41:53,470 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2018-11-10 07:41:53,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 07:41:53,484 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2018-11-10 07:41:53,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:41:53,484 INFO L225 Difference]: With dead ends: 23 [2018-11-10 07:41:53,484 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 07:41:53,485 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 57.9s TimeCoverageRelationStatistics Valid=63, Invalid=180, Unknown=5, NotChecked=58, Total=306 [2018-11-10 07:41:53,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 07:41:53,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 07:41:53,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 07:41:53,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 07:41:53,486 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-11-10 07:41:53,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:41:53,486 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 07:41:53,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-10 07:41:53,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 07:41:53,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 07:41:53,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 07:41:57,468 WARN L179 SmtUtils]: Spent 3.93 s on a formula simplification. DAG size of input: 20 DAG size of output: 12 [2018-11-10 07:42:07,276 WARN L179 SmtUtils]: Spent 9.81 s on a formula simplification. DAG size of input: 43 DAG size of output: 12 [2018-11-10 07:42:07,277 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 07:42:07,277 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 07:42:07,278 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 07:42:07,278 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 07:42:07,278 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 07:42:07,278 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 07:42:07,278 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 4 20) the Hoare annotation is: true [2018-11-10 07:42:07,278 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 4 20) no Hoare annotation was computed. [2018-11-10 07:42:07,278 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-10 07:42:07,279 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 4 20) no Hoare annotation was computed. [2018-11-10 07:42:07,279 INFO L425 ceAbstractionStarter]: For program point L12-1(lines 12 16) no Hoare annotation was computed. [2018-11-10 07:42:07,279 INFO L421 ceAbstractionStarter]: At program point L12-3(lines 12 16) the Hoare annotation is: (and (fp.leq ((_ to_fp 11 53) RNE (fp.add RNE main_~z~0 ((_ to_fp 8 24) RNE 1.0))) ((_ to_fp 11 53) RNE 100000000.0)) (fp.geq main_~z~0 (_ +zero 8 24))) [2018-11-10 07:42:07,279 INFO L421 ceAbstractionStarter]: At program point L12-4(lines 12 16) the Hoare annotation is: (and (fp.leq ((_ to_fp 11 53) RNE (fp.add RNE main_~z~0 ((_ to_fp 8 24) RNE 1.0))) ((_ to_fp 11 53) RNE 100000000.0)) (fp.geq main_~z~0 (_ +zero 8 24))) [2018-11-10 07:42:07,279 INFO L425 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2018-11-10 07:42:07,279 INFO L425 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2018-11-10 07:42:07,279 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2018-11-10 07:42:07,280 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2018-11-10 07:42:07,280 INFO L425 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2018-11-10 07:42:07,280 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2018-11-10 07:42:07,286 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 07:42:07,287 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 07:42:07,287 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 07:42:07,287 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 07:42:07,290 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 07:42:07,290 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 07:42:07,290 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 07:42:07,291 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 07:42:07,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:42:07 BoogieIcfgContainer [2018-11-10 07:42:07,292 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:42:07,293 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:42:07,293 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:42:07,293 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:42:07,294 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:40:27" (3/4) ... [2018-11-10 07:42:07,296 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 07:42:07,301 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 07:42:07,302 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 07:42:07,302 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-10 07:42:07,305 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-10 07:42:07,305 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 07:42:07,305 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 07:42:07,334 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b9bddc9d-172c-4651-9ea5-b117965129a0/bin-2019/uautomizer/witness.graphml [2018-11-10 07:42:07,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:42:07,335 INFO L168 Benchmark]: Toolchain (without parser) took 100837.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 950.8 MB in the beginning and 984.5 MB in the end (delta: -33.7 MB). Peak memory consumption was 88.5 MB. Max. memory is 11.5 GB. [2018-11-10 07:42:07,335 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:42:07,336 INFO L168 Benchmark]: CACSL2BoogieTranslator took 189.17 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 939.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:42:07,336 INFO L168 Benchmark]: Boogie Preprocessor took 27.71 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 07:42:07,336 INFO L168 Benchmark]: RCFGBuilder took 665.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2018-11-10 07:42:07,337 INFO L168 Benchmark]: TraceAbstraction took 99910.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.5 MB in the end (delta: 120.4 MB). Peak memory consumption was 120.4 MB. Max. memory is 11.5 GB. [2018-11-10 07:42:07,337 INFO L168 Benchmark]: Witness Printer took 41.31 ms. Allocated memory is still 1.2 GB. Free memory is still 984.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:42:07,339 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 189.17 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 939.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.71 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 665.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 99910.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.5 MB in the end (delta: 120.4 MB). Peak memory consumption was 120.4 MB. Max. memory is 11.5 GB. * Witness Printer took 41.31 ms. Allocated memory is still 1.2 GB. Free memory is still 984.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant [2018-11-10 07:42:07,343 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 07:42:07,343 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 07:42:07,343 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 07:42:07,343 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 07:42:07,344 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 07:42:07,344 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 07:42:07,344 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 07:42:07,344 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: ~fp.leq~DOUBLE(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~fp.add~FLOAT(RoundingMode_RNE, z, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0))), ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E8)) && ~fp.geq~FLOAT(z, ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 99.8s OverallTime, 4 OverallIterations, 5 TraceHistogramMax, 46.0s AutomataDifference, 0.0s DeadEndRemovalTime, 13.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 54 SDtfs, 4 SDslu, 119 SDs, 0 SdLazy, 64 SolverSat, 10 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 16.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 59 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 68.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=3, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 18 NumberOfFragments, 37 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 159 FormulaSimplificationTreeSizeReductionInter, 13.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 39.4s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 11293 SizeOfPredicates, 6 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 2/44 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...