./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/square_6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_6.i -s /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/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 20673ed10b5a05371c8641d8d8a54d9346cb443e .................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_6.i -s /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/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 20673ed10b5a05371c8641d8d8a54d9346cb443e .................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:36:59,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:36:59,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:36:59,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:36:59,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:36:59,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:36:59,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:36:59,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:36:59,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:36:59,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:36:59,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:36:59,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:36:59,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:36:59,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:36:59,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:36:59,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:36:59,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:36:59,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:36:59,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:36:59,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:36:59,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:36:59,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:36:59,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:36:59,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:36:59,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:36:59,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:36:59,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:36:59,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:36:59,621 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:36:59,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:36:59,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:36:59,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:36:59,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:36:59,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:36:59,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:36:59,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:36:59,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:36:59,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:36:59,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:36:59,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:36:59,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:36:59,626 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 12:36:59,636 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:36:59,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:36:59,637 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:36:59,637 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:36:59,637 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:36:59,637 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:36:59,637 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 12:36:59,637 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:36:59,638 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:36:59,638 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 12:36:59,638 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 12:36:59,638 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:36:59,638 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 12:36:59,638 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 12:36:59,638 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 12:36:59,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:36:59,639 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:36:59,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:36:59,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:36:59,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:36:59,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:36:59,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:36:59,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:36:59,640 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:36:59,640 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:36:59,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:36:59,640 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:36:59,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:36:59,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:36:59,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:36:59,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:36:59,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:36:59,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:36:59,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:36:59,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:36:59,641 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 12:36:59,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:36:59,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:36:59,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:36:59,641 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:36:59,642 INFO L138 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/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/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 -> 20673ed10b5a05371c8641d8d8a54d9346cb443e [2019-12-07 12:36:59,753 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:36:59,761 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:36:59,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:36:59,764 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:36:59,764 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:36:59,765 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/../../sv-benchmarks/c/floats-cdfpl/square_6.i [2019-12-07 12:36:59,804 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/data/5e01608c0/d1e1e4cc047b4f128f931bf0c026bc11/FLAG42b41c8da [2019-12-07 12:37:00,164 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:37:00,165 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/sv-benchmarks/c/floats-cdfpl/square_6.i [2019-12-07 12:37:00,169 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/data/5e01608c0/d1e1e4cc047b4f128f931bf0c026bc11/FLAG42b41c8da [2019-12-07 12:37:00,583 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/data/5e01608c0/d1e1e4cc047b4f128f931bf0c026bc11 [2019-12-07 12:37:00,586 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:37:00,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:37:00,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:37:00,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:37:00,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:37:00,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:37:00" (1/1) ... [2019-12-07 12:37:00,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17574348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:00, skipping insertion in model container [2019-12-07 12:37:00,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:37:00" (1/1) ... [2019-12-07 12:37:00,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:37:00,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:37:00,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:37:00,719 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:37:00,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:37:00,770 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:37:00,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:00 WrapperNode [2019-12-07 12:37:00,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:37:00,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:37:00,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:37:00,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:37:00,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:00" (1/1) ... [2019-12-07 12:37:00,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:00" (1/1) ... [2019-12-07 12:37:00,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:37:00,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:37:00,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:37:00,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:37:00,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:00" (1/1) ... [2019-12-07 12:37:00,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:00" (1/1) ... [2019-12-07 12:37:00,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:00" (1/1) ... [2019-12-07 12:37:00,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:00" (1/1) ... [2019-12-07 12:37:00,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:00" (1/1) ... [2019-12-07 12:37:00,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:00" (1/1) ... [2019-12-07 12:37:00,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:00" (1/1) ... [2019-12-07 12:37:00,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:37:00,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:37:00,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:37:00,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:37:00,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/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 [2019-12-07 12:37:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:37:00,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:37:00,923 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:37:00,923 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 12:37:00,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:37:00 BoogieIcfgContainer [2019-12-07 12:37:00,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:37:00,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:37:00,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:37:00,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:37:00,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:37:00" (1/3) ... [2019-12-07 12:37:00,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d94234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:37:00, skipping insertion in model container [2019-12-07 12:37:00,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:00" (2/3) ... [2019-12-07 12:37:00,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d94234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:37:00, skipping insertion in model container [2019-12-07 12:37:00,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:37:00" (3/3) ... [2019-12-07 12:37:00,930 INFO L109 eAbstractionObserver]: Analyzing ICFG square_6.i [2019-12-07 12:37:00,936 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:37:00,940 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:37:00,949 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:37:00,963 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:37:00,963 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:37:00,963 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:37:00,963 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:37:00,963 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:37:00,963 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:37:00,963 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:37:00,964 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:37:00,972 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-12-07 12:37:00,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 12:37:00,975 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:37:00,976 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 12:37:00,976 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:37:00,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:37:00,980 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-12-07 12:37:00,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:37:00,985 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565767155] [2019-12-07 12:37:00,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:37:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:37:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:37:01,056 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 12:37:01,056 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:37:01,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:37:01 BoogieIcfgContainer [2019-12-07 12:37:01,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:37:01,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:37:01,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:37:01,067 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:37:01,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:37:00" (3/4) ... [2019-12-07 12:37:01,070 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:37:01,070 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:37:01,072 INFO L168 Benchmark]: Toolchain (without parser) took 484.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -142.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:37:01,073 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:37:01,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:37:01,074 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:37:01,075 INFO L168 Benchmark]: Boogie Preprocessor took 11.25 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:37:01,075 INFO L168 Benchmark]: RCFGBuilder took 122.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:37:01,076 INFO L168 Benchmark]: TraceAbstraction took 141.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:37:01,076 INFO L168 Benchmark]: Witness Printer took 3.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:37:01,079 INFO L335 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 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 182.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.25 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 122.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 141.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.07 ms. Allocated memory is still 1.1 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: 15]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 12. Possible FailurePath: [L6] float IN = __VERIFIER_nondet_float(); [L9] float x = IN; [L11-L12] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; [L14] COND TRUE !(result >= 0.0f && result < 1.399f) [L15] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.25-f470102 [2019-12-07 12:37:02,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:37:02,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:37:02,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:37:02,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:37:02,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:37:02,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:37:02,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:37:02,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:37:02,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:37:02,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:37:02,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:37:02,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:37:02,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:37:02,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:37:02,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:37:02,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:37:02,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:37:02,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:37:02,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:37:02,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:37:02,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:37:02,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:37:02,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:37:02,531 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:37:02,531 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:37:02,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:37:02,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:37:02,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:37:02,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:37:02,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:37:02,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:37:02,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:37:02,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:37:02,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:37:02,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:37:02,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:37:02,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:37:02,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:37:02,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:37:02,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:37:02,537 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 12:37:02,548 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:37:02,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:37:02,549 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:37:02,549 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:37:02,549 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:37:02,550 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:37:02,550 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:37:02,550 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:37:02,550 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:37:02,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:37:02,551 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:37:02,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:37:02,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:37:02,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:37:02,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:37:02,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:37:02,552 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:37:02,552 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 12:37:02,552 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 12:37:02,552 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:37:02,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:37:02,552 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:37:02,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:37:02,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:37:02,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:37:02,553 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:37:02,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:37:02,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:37:02,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:37:02,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:37:02,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:37:02,554 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 12:37:02,554 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 12:37:02,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:37:02,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:37:02,554 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:37:02,554 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/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 -> 20673ed10b5a05371c8641d8d8a54d9346cb443e [2019-12-07 12:37:02,721 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:37:02,732 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:37:02,735 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:37:02,736 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:37:02,736 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:37:02,737 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/../../sv-benchmarks/c/floats-cdfpl/square_6.i [2019-12-07 12:37:02,785 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/data/ad82d0dda/a6e2dedb10424d47b712c280707fd124/FLAG4ae001617 [2019-12-07 12:37:03,173 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:37:03,174 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/sv-benchmarks/c/floats-cdfpl/square_6.i [2019-12-07 12:37:03,177 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/data/ad82d0dda/a6e2dedb10424d47b712c280707fd124/FLAG4ae001617 [2019-12-07 12:37:03,558 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/data/ad82d0dda/a6e2dedb10424d47b712c280707fd124 [2019-12-07 12:37:03,560 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:37:03,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:37:03,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:37:03,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:37:03,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:37:03,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:37:03" (1/1) ... [2019-12-07 12:37:03,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41944eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:03, skipping insertion in model container [2019-12-07 12:37:03,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:37:03" (1/1) ... [2019-12-07 12:37:03,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:37:03,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:37:03,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:37:03,681 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:37:03,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:37:03,701 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:37:03,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:03 WrapperNode [2019-12-07 12:37:03,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:37:03,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:37:03,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:37:03,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:37:03,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:03" (1/1) ... [2019-12-07 12:37:03,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:03" (1/1) ... [2019-12-07 12:37:03,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:37:03,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:37:03,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:37:03,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:37:03,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:03" (1/1) ... [2019-12-07 12:37:03,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:03" (1/1) ... [2019-12-07 12:37:03,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:03" (1/1) ... [2019-12-07 12:37:03,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:03" (1/1) ... [2019-12-07 12:37:03,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:03" (1/1) ... [2019-12-07 12:37:03,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:03" (1/1) ... [2019-12-07 12:37:03,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:03" (1/1) ... [2019-12-07 12:37:03,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:37:03,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:37:03,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:37:03,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:37:03,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/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 [2019-12-07 12:37:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:37:03,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:37:05,955 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:37:05,955 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 12:37:05,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:37:05 BoogieIcfgContainer [2019-12-07 12:37:05,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:37:05,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:37:05,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:37:05,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:37:05,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:37:03" (1/3) ... [2019-12-07 12:37:05,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548cd51a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:37:05, skipping insertion in model container [2019-12-07 12:37:05,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:37:03" (2/3) ... [2019-12-07 12:37:05,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548cd51a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:37:05, skipping insertion in model container [2019-12-07 12:37:05,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:37:05" (3/3) ... [2019-12-07 12:37:05,961 INFO L109 eAbstractionObserver]: Analyzing ICFG square_6.i [2019-12-07 12:37:05,967 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:37:05,971 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:37:05,978 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:37:05,992 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:37:05,992 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:37:05,992 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:37:05,993 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:37:05,993 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:37:05,993 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:37:05,993 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:37:05,993 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:37:06,002 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-12-07 12:37:06,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 12:37:06,005 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:37:06,006 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 12:37:06,006 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:37:06,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:37:06,010 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-12-07 12:37:06,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:37:06,017 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439251390] [2019-12-07 12:37:06,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/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 [2019-12-07 12:43:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:43:25,537 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 12:43:25,541 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:43:27,640 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (fp.lt ULTIMATE.start_main_~x~0 .cse0) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 8 24)) (= (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) ULTIMATE.start_main_~x~0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0)) c_ULTIMATE.start_main_~result~0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2019-12-07 12:43:29,706 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 12:43:40,121 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 8 24)) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) ULTIMATE.start_main_~x~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0)) (_ +zero 8 24))) (fp.lt ULTIMATE.start_main_~x~0 .cse0)))) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 8 24)) (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) ULTIMATE.start_main_~x~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 1399.0 1000.0)))) (fp.lt ULTIMATE.start_main_~x~0 .cse1))))) is different from false [2019-12-07 12:43:42,172 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 8 24)) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) ULTIMATE.start_main_~x~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0)) (_ +zero 8 24))) (fp.lt ULTIMATE.start_main_~x~0 .cse0)))) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 8 24)) (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) ULTIMATE.start_main_~x~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 1399.0 1000.0)))) (fp.lt ULTIMATE.start_main_~x~0 .cse1))))) is different from true [2019-12-07 12:43:42,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:43:42,175 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:43:42,203 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 12:43:44,260 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_4 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (or (not (fp.lt v_ULTIMATE.start_main_~x~0_4 .cse0)) (fp.geq (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (_ +zero 8 24)) (not (fp.geq v_ULTIMATE.start_main_~x~0_4 (_ +zero 8 24)))))) (forall ((v_ULTIMATE.start_main_~x~0_4 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (or (fp.lt (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) ((_ to_fp 8 24) c_currentRoundingMode (/ 1399.0 1000.0))) (not (fp.lt v_ULTIMATE.start_main_~x~0_4 .cse1)) (not (fp.geq v_ULTIMATE.start_main_~x~0_4 (_ +zero 8 24))))))) is different from false [2019-12-07 12:43:46,396 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_4 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (or (not (fp.lt v_ULTIMATE.start_main_~x~0_4 .cse0)) (fp.geq (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (_ +zero 8 24)) (not (fp.geq v_ULTIMATE.start_main_~x~0_4 (_ +zero 8 24)))))) (forall ((v_ULTIMATE.start_main_~x~0_4 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (or (fp.lt (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) ((_ to_fp 8 24) c_currentRoundingMode (/ 1399.0 1000.0))) (not (fp.lt v_ULTIMATE.start_main_~x~0_4 .cse1)) (not (fp.geq v_ULTIMATE.start_main_~x~0_4 (_ +zero 8 24))))))) is different from true [2019-12-07 12:43:46,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:43:46,397 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439251390] [2019-12-07 12:43:46,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:43:46,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2019-12-07 12:43:46,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544307090] [2019-12-07 12:43:46,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 12:43:46,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:43:46,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 12:43:46,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=8, Unknown=5, NotChecked=18, Total=42 [2019-12-07 12:43:46,416 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 7 states. [2019-12-07 12:43:48,492 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_4 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (or (not (fp.lt v_ULTIMATE.start_main_~x~0_4 .cse0)) (fp.geq (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (_ +zero 8 24)) (not (fp.geq v_ULTIMATE.start_main_~x~0_4 (_ +zero 8 24)))))) (forall ((v_ULTIMATE.start_main_~x~0_4 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (or (fp.lt (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) ((_ to_fp 8 24) c_currentRoundingMode (/ 1399.0 1000.0))) (not (fp.lt v_ULTIMATE.start_main_~x~0_4 .cse1)) (not (fp.geq v_ULTIMATE.start_main_~x~0_4 (_ +zero 8 24)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2019-12-07 12:43:50,633 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_4 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (or (not (fp.lt v_ULTIMATE.start_main_~x~0_4 .cse0)) (fp.geq (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (_ +zero 8 24)) (not (fp.geq v_ULTIMATE.start_main_~x~0_4 (_ +zero 8 24)))))) (forall ((v_ULTIMATE.start_main_~x~0_4 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (or (fp.lt (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4) v_ULTIMATE.start_main_~x~0_4)) ((_ to_fp 8 24) c_currentRoundingMode (/ 1399.0 1000.0))) (not (fp.lt v_ULTIMATE.start_main_~x~0_4 .cse1)) (not (fp.geq v_ULTIMATE.start_main_~x~0_4 (_ +zero 8 24)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-12-07 12:43:52,708 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (fp.lt ULTIMATE.start_main_~x~0 .cse0) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 8 24)) (= (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) ULTIMATE.start_main_~x~0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~x~0)) c_ULTIMATE.start_main_~result~0)))) (fp.geq c_ULTIMATE.start_main_~result~0 (_ +zero 8 24)) (= c_currentRoundingMode roundNearestTiesToEven) (fp.lt c_ULTIMATE.start_main_~result~0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1399.0 1000.0)))) is different from false [2019-12-07 12:43:52,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:43:52,717 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-12-07 12:43:52,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:43:52,718 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 4 [2019-12-07 12:43:52,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:43:52,723 INFO L225 Difference]: With dead ends: 13 [2019-12-07 12:43:52,723 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 12:43:52,726 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=15, Invalid=9, Unknown=8, NotChecked=40, Total=72 [2019-12-07 12:43:52,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 12:43:52,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 12:43:52,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 12:43:52,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 12:43:52,743 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-12-07 12:43:52,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:43:52,743 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:43:52,743 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 12:43:52,743 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 12:43:52,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 12:43:52,944 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 12:43:52,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 12:43:52,992 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 12:43:52,993 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 12:43:52,993 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 12:43:52,993 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 12:43:52,993 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2019-12-07 12:43:52,993 INFO L249 CegarLoopResult]: At program point L17(lines 4 18) the Hoare annotation is: true [2019-12-07 12:43:52,993 INFO L246 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2019-12-07 12:43:52,993 INFO L246 CegarLoopResult]: For program point L14(lines 14 15) no Hoare annotation was computed. [2019-12-07 12:43:52,993 INFO L246 CegarLoopResult]: For program point L14-2(lines 14 15) no Hoare annotation was computed. [2019-12-07 12:43:52,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:43:52 BoogieIcfgContainer [2019-12-07 12:43:52,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:43:52,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:43:52,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:43:52,999 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:43:52,999 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:37:05" (3/4) ... [2019-12-07 12:43:53,001 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 12:43:53,008 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 12:43:53,008 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 12:43:53,008 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 12:43:53,031 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_aeb0b91a-4bf3-4531-9030-3bdf6a225454/bin/utaipan/witness.graphml [2019-12-07 12:43:53,031 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:43:53,033 INFO L168 Benchmark]: Toolchain (without parser) took 409471.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 952.4 MB in the beginning and 1.0 GB in the end (delta: -78.8 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 12:43:53,033 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:43:53,033 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.48 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:43:53,034 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.74 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 936.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:43:53,034 INFO L168 Benchmark]: Boogie Preprocessor took 41.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -146.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:43:53,035 INFO L168 Benchmark]: RCFGBuilder took 2191.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:43:53,035 INFO L168 Benchmark]: TraceAbstraction took 407041.91 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: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:43:53,035 INFO L168 Benchmark]: Witness Printer took 32.74 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. [2019-12-07 12:43:53,037 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 140.48 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 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 20.74 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 936.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -146.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2191.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 407041.91 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: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. * Witness Printer took 32.74 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: - PositiveResult [Line: 15]: 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: 4]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 406.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 0 SDslu, 9 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 379.0s SatisfiabilityAnalysisTime, 21.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 3 QuantifiedInterpolants, 1062 SizeOfPredicates, 4 NumberOfNonLiveVariables, 9 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...