./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c --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_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/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 6f0e5ff08d8d375b1c12be7373d81b68e548344f .............................................................................................................................................................................................................................................................................................................................................................................................. 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_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/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 6f0e5ff08d8d375b1c12be7373d81b68e548344f .................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 20:38:32,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:38:32,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:38:32,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:38:32,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:38:32,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:38:32,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:38:32,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:38:32,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:38:32,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:38:32,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:38:32,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:38:32,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:38:32,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:38:32,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:38:32,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:38:32,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:38:32,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:38:32,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:38:32,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:38:32,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:38:32,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:38:32,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:38:32,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:38:32,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:38:32,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:38:32,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:38:32,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:38:32,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:38:32,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:38:32,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:38:32,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:38:32,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:38:32,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:38:32,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:38:32,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:38:32,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:38:32,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:38:32,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:38:32,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:38:32,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:38:32,615 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:38:32,625 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:38:32,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:38:32,626 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:38:32,626 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:38:32,626 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:38:32,626 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:38:32,626 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:38:32,627 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:38:32,627 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:38:32,627 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:38:32,627 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:38:32,627 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:38:32,627 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:38:32,627 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:38:32,627 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:38:32,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:38:32,628 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:38:32,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:38:32,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:38:32,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:38:32,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:38:32,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:38:32,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:38:32,629 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:38:32,629 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:38:32,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:38:32,629 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:38:32,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:38:32,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:38:32,630 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:38:32,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:38:32,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:38:32,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:38:32,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:38:32,631 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:38:32,631 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:38:32,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:38:32,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:38:32,631 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:38:32,631 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:38:32,632 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_ffe97923-9775-427c-8671-ded48199bef1/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 -> 6f0e5ff08d8d375b1c12be7373d81b68e548344f [2019-12-07 20:38:32,735 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:38:32,742 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:38:32,744 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:38:32,745 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:38:32,745 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:38:32,746 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c [2019-12-07 20:38:32,781 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/data/9455ca715/a56989c6bfc4467f82e7f7807a0d9200/FLAG91907ccfe [2019-12-07 20:38:33,218 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:38:33,219 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c [2019-12-07 20:38:33,225 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/data/9455ca715/a56989c6bfc4467f82e7f7807a0d9200/FLAG91907ccfe [2019-12-07 20:38:33,234 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/data/9455ca715/a56989c6bfc4467f82e7f7807a0d9200 [2019-12-07 20:38:33,236 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:38:33,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:38:33,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:38:33,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:38:33,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:38:33,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:38:33" (1/1) ... [2019-12-07 20:38:33,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aa662cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:33, skipping insertion in model container [2019-12-07 20:38:33,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:38:33" (1/1) ... [2019-12-07 20:38:33,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:38:33,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:38:33,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:38:33,446 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:38:33,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:38:33,498 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:38:33,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:33 WrapperNode [2019-12-07 20:38:33,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:38:33,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:38:33,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:38:33,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:38:33,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:33" (1/1) ... [2019-12-07 20:38:33,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:33" (1/1) ... [2019-12-07 20:38:33,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:38:33,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:38:33,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:38:33,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:38:33,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:33" (1/1) ... [2019-12-07 20:38:33,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:33" (1/1) ... [2019-12-07 20:38:33,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:33" (1/1) ... [2019-12-07 20:38:33,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:33" (1/1) ... [2019-12-07 20:38:33,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:33" (1/1) ... [2019-12-07 20:38:33,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:33" (1/1) ... [2019-12-07 20:38:33,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:33" (1/1) ... [2019-12-07 20:38:33,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:38:33,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:38:33,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:38:33,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:38:33,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/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 20:38:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:38:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 20:38:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 20:38:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 20:38:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:38:33,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:38:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 20:38:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-07 20:38:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 20:38:34,202 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:38:34,203 INFO L287 CfgBuilder]: Removed 52 assume(true) statements. [2019-12-07 20:38:34,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:38:34 BoogieIcfgContainer [2019-12-07 20:38:34,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:38:34,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:38:34,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:38:34,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:38:34,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:38:33" (1/3) ... [2019-12-07 20:38:34,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4766c628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:38:34, skipping insertion in model container [2019-12-07 20:38:34,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:33" (2/3) ... [2019-12-07 20:38:34,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4766c628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:38:34, skipping insertion in model container [2019-12-07 20:38:34,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:38:34" (3/3) ... [2019-12-07 20:38:34,210 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684a.c [2019-12-07 20:38:34,219 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:38:34,226 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 20:38:34,235 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 20:38:34,253 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:38:34,253 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:38:34,253 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:38:34,253 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:38:34,253 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:38:34,253 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:38:34,253 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:38:34,253 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:38:34,266 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states. [2019-12-07 20:38:34,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 20:38:34,272 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:38:34,272 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:38:34,273 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:38:34,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:38:34,277 INFO L82 PathProgramCache]: Analyzing trace with hash -2125720583, now seen corresponding path program 1 times [2019-12-07 20:38:34,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:38:34,283 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950906514] [2019-12-07 20:38:34,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:38:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:38:34,388 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 20:38:34,388 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950906514] [2019-12-07 20:38:34,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:38:34,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 20:38:34,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743091713] [2019-12-07 20:38:34,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 20:38:34,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:38:34,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 20:38:34,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:38:34,404 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 2 states. [2019-12-07 20:38:34,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:38:34,426 INFO L93 Difference]: Finished difference Result 181 states and 309 transitions. [2019-12-07 20:38:34,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 20:38:34,427 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-12-07 20:38:34,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:38:34,435 INFO L225 Difference]: With dead ends: 181 [2019-12-07 20:38:34,435 INFO L226 Difference]: Without dead ends: 88 [2019-12-07 20:38:34,438 INFO L630 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 [2019-12-07 20:38:34,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-12-07 20:38:34,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2019-12-07 20:38:34,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-12-07 20:38:34,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 118 transitions. [2019-12-07 20:38:34,470 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 118 transitions. Word has length 13 [2019-12-07 20:38:34,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:38:34,470 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 118 transitions. [2019-12-07 20:38:34,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 20:38:34,470 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 118 transitions. [2019-12-07 20:38:34,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 20:38:34,471 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:38:34,471 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:38:34,471 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:38:34,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:38:34,472 INFO L82 PathProgramCache]: Analyzing trace with hash -773982143, now seen corresponding path program 1 times [2019-12-07 20:38:34,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:38:34,472 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38493940] [2019-12-07 20:38:34,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:38:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:38:34,525 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 20:38:34,525 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38493940] [2019-12-07 20:38:34,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:38:34,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 20:38:34,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642080100] [2019-12-07 20:38:34,526 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:38:34,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:38:34,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:38:34,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:38:34,527 INFO L87 Difference]: Start difference. First operand 88 states and 118 transitions. Second operand 3 states. [2019-12-07 20:38:34,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:38:34,548 INFO L93 Difference]: Finished difference Result 168 states and 227 transitions. [2019-12-07 20:38:34,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:38:34,548 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-12-07 20:38:34,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:38:34,549 INFO L225 Difference]: With dead ends: 168 [2019-12-07 20:38:34,549 INFO L226 Difference]: Without dead ends: 88 [2019-12-07 20:38:34,550 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:38:34,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-12-07 20:38:34,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2019-12-07 20:38:34,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-12-07 20:38:34,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 117 transitions. [2019-12-07 20:38:34,557 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 117 transitions. Word has length 16 [2019-12-07 20:38:34,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:38:34,557 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 117 transitions. [2019-12-07 20:38:34,557 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:38:34,557 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 117 transitions. [2019-12-07 20:38:34,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 20:38:34,558 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:38:34,558 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:38:34,558 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:38:34,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:38:34,558 INFO L82 PathProgramCache]: Analyzing trace with hash -2043284774, now seen corresponding path program 1 times [2019-12-07 20:38:34,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:38:34,558 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078241879] [2019-12-07 20:38:34,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:38:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:38:34,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:38:34,716 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 20:38:34,716 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:38:34,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:38:34 BoogieIcfgContainer [2019-12-07 20:38:34,749 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:38:34,750 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:38:34,750 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:38:34,750 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:38:34,751 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:38:34" (3/4) ... [2019-12-07 20:38:34,753 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 20:38:34,753 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:38:34,755 INFO L168 Benchmark]: Toolchain (without parser) took 1517.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 942.1 MB in the beginning and 931.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 116.5 MB. Max. memory is 11.5 GB. [2019-12-07 20:38:34,755 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 959.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:38:34,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 942.1 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:38:34,756 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.69 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-12-07 20:38:34,757 INFO L168 Benchmark]: Boogie Preprocessor took 43.05 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: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:38:34,757 INFO L168 Benchmark]: RCFGBuilder took 617.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 991.6 MB in the end (delta: 91.1 MB). Peak memory consumption was 91.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:38:34,758 INFO L168 Benchmark]: TraceAbstraction took 544.72 ms. Allocated memory is still 1.1 GB. Free memory was 991.6 MB in the beginning and 931.0 MB in the end (delta: 60.6 MB). Peak memory consumption was 60.6 MB. Max. memory is 11.5 GB. [2019-12-07 20:38:34,758 INFO L168 Benchmark]: Witness Printer took 3.80 ms. Allocated memory is still 1.1 GB. Free memory is still 931.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:38:34,760 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 959.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 260.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 942.1 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.69 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.05 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: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 617.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 991.6 MB in the end (delta: 91.1 MB). Peak memory consumption was 91.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 544.72 ms. Allocated memory is still 1.1 GB. Free memory was 991.6 MB in the beginning and 931.0 MB in the end (delta: 60.6 MB). Peak memory consumption was 60.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.80 ms. Allocated memory is still 1.1 GB. Free memory is still 931.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 286]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryDOUBLEComparisonOperation at line 285. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L276] double x = __VERIFIER_nondet_double(); [L277] double y = 1.0 / 0.0; [L260] __int32_t hx; VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L262] ieee_double_shape_type gh_u; [L263] gh_u.value = (x) [L264] EXPR gh_u.parts.msw [L264] (hx) = gh_u.parts.msw [L266] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L280] isfinite_double(x) && isinf_double(y) [L246] __int32_t hx, lx; VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L248] ieee_double_shape_type ew_u; [L249] ew_u.value = (x) [L250] EXPR ew_u.parts.msw [L250] (hx) = ew_u.parts.msw [L251] EXPR ew_u.parts.lsw [L251] (lx) = ew_u.parts.lsw [L253] hx &= 0x7fffffff [L254] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L255] hx = 0x7ff00000 - hx [L256] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L280] isfinite_double(x) && isinf_double(y) VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L280] COND TRUE isfinite_double(x) && isinf_double(y) [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L282] double res = __ieee754_atan2(y, x); [L285] COND TRUE res != pi_o_2 VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L286] __VERIFIER_error() VAL [aT_atan={5:0}, atanhi_atan={6:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 91 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 240 SDtfs, 0 SDslu, 112 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 384 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 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 20:38:36,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:38:36,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:38:36,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:38:36,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:38:36,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:38:36,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:38:36,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:38:36,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:38:36,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:38:36,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:38:36,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:38:36,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:38:36,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:38:36,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:38:36,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:38:36,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:38:36,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:38:36,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:38:36,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:38:36,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:38:36,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:38:36,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:38:36,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:38:36,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:38:36,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:38:36,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:38:36,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:38:36,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:38:36,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:38:36,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:38:36,114 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:38:36,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:38:36,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:38:36,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:38:36,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:38:36,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:38:36,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:38:36,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:38:36,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:38:36,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:38:36,118 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 20:38:36,129 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:38:36,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:38:36,129 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:38:36,129 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:38:36,130 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:38:36,130 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:38:36,130 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:38:36,130 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:38:36,130 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:38:36,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:38:36,131 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:38:36,131 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:38:36,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:38:36,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:38:36,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:38:36,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:38:36,132 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:38:36,132 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 20:38:36,132 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 20:38:36,132 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:38:36,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:38:36,132 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:38:36,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:38:36,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:38:36,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 20:38:36,133 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:38:36,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:38:36,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:38:36,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:38:36,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:38:36,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:38:36,134 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 20:38:36,134 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 20:38:36,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:38:36,134 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:38:36,134 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:38:36,135 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_ffe97923-9775-427c-8671-ded48199bef1/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 -> 6f0e5ff08d8d375b1c12be7373d81b68e548344f [2019-12-07 20:38:36,320 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:38:36,327 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:38:36,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:38:36,330 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:38:36,331 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:38:36,331 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c [2019-12-07 20:38:36,367 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/data/b948192a6/2482af3f8da642ffac943d0002cbacb5/FLAGd5a685ae6 [2019-12-07 20:38:36,721 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:38:36,722 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c [2019-12-07 20:38:36,728 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/data/b948192a6/2482af3f8da642ffac943d0002cbacb5/FLAGd5a685ae6 [2019-12-07 20:38:36,736 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/data/b948192a6/2482af3f8da642ffac943d0002cbacb5 [2019-12-07 20:38:36,738 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:38:36,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:38:36,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:38:36,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:38:36,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:38:36,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:38:36" (1/1) ... [2019-12-07 20:38:36,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eae0e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:36, skipping insertion in model container [2019-12-07 20:38:36,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:38:36" (1/1) ... [2019-12-07 20:38:36,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:38:36,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:38:36,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:38:36,916 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:38:36,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:38:37,014 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:38:37,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:37 WrapperNode [2019-12-07 20:38:37,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:38:37,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:38:37,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:38:37,016 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:38:37,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:37" (1/1) ... [2019-12-07 20:38:37,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:37" (1/1) ... [2019-12-07 20:38:37,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:38:37,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:38:37,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:38:37,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:38:37,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:37" (1/1) ... [2019-12-07 20:38:37,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:37" (1/1) ... [2019-12-07 20:38:37,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:37" (1/1) ... [2019-12-07 20:38:37,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:37" (1/1) ... [2019-12-07 20:38:37,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:37" (1/1) ... [2019-12-07 20:38:37,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:37" (1/1) ... [2019-12-07 20:38:37,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:37" (1/1) ... [2019-12-07 20:38:37,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:38:37,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:38:37,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:38:37,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:38:37,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/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 20:38:37,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 20:38:37,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 20:38:37,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:38:37,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-12-07 20:38:37,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 20:38:37,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:38:37,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:38:37,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 20:38:37,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 20:39:14,184 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:39:14,184 INFO L287 CfgBuilder]: Removed 52 assume(true) statements. [2019-12-07 20:39:14,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:39:14 BoogieIcfgContainer [2019-12-07 20:39:14,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:39:14,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:39:14,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:39:14,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:39:14,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:38:36" (1/3) ... [2019-12-07 20:39:14,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76cb0426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:39:14, skipping insertion in model container [2019-12-07 20:39:14,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:38:37" (2/3) ... [2019-12-07 20:39:14,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76cb0426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:39:14, skipping insertion in model container [2019-12-07 20:39:14,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:39:14" (3/3) ... [2019-12-07 20:39:14,191 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684a.c [2019-12-07 20:39:14,197 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:39:14,202 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 20:39:14,209 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 20:39:14,227 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:39:14,227 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:39:14,227 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:39:14,227 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:39:14,227 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:39:14,227 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:39:14,228 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:39:14,228 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:39:14,239 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2019-12-07 20:39:14,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 20:39:14,243 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:39:14,244 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:39:14,244 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:39:14,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:39:14,248 INFO L82 PathProgramCache]: Analyzing trace with hash -617567418, now seen corresponding path program 1 times [2019-12-07 20:39:14,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:39:14,256 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759833830] [2019-12-07 20:39:14,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/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 20:39:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:39:14,590 INFO L264 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 20:39:14,595 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:39:14,606 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 20:39:14,607 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:39:14,610 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 20:39:14,611 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759833830] [2019-12-07 20:39:14,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:39:14,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 20:39:14,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922463220] [2019-12-07 20:39:14,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 20:39:14,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:39:14,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 20:39:14,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:39:14,627 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 2 states. [2019-12-07 20:39:14,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:39:14,650 INFO L93 Difference]: Finished difference Result 246 states and 412 transitions. [2019-12-07 20:39:14,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 20:39:14,651 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-12-07 20:39:14,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:39:14,659 INFO L225 Difference]: With dead ends: 246 [2019-12-07 20:39:14,659 INFO L226 Difference]: Without dead ends: 120 [2019-12-07 20:39:14,662 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:39:14,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-12-07 20:39:14,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-12-07 20:39:14,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-12-07 20:39:14,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 169 transitions. [2019-12-07 20:39:14,691 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 169 transitions. Word has length 15 [2019-12-07 20:39:14,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:39:14,692 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 169 transitions. [2019-12-07 20:39:14,692 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 20:39:14,692 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 169 transitions. [2019-12-07 20:39:14,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 20:39:14,692 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:39:14,693 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:39:14,893 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 20:39:14,895 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:39:14,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:39:14,896 INFO L82 PathProgramCache]: Analyzing trace with hash -397782484, now seen corresponding path program 1 times [2019-12-07 20:39:14,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:39:14,899 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136438574] [2019-12-07 20:39:14,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 20:39:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:39:15,314 INFO L264 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:39:15,316 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:39:15,329 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 20:39:15,329 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:39:15,332 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 20:39:15,332 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136438574] [2019-12-07 20:39:15,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:39:15,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 20:39:15,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638381767] [2019-12-07 20:39:15,334 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:39:15,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:39:15,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:39:15,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:39:15,335 INFO L87 Difference]: Start difference. First operand 120 states and 169 transitions. Second operand 3 states. [2019-12-07 20:39:15,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:39:15,542 INFO L93 Difference]: Finished difference Result 229 states and 326 transitions. [2019-12-07 20:39:15,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:39:15,543 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-12-07 20:39:15,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:39:15,544 INFO L225 Difference]: With dead ends: 229 [2019-12-07 20:39:15,544 INFO L226 Difference]: Without dead ends: 120 [2019-12-07 20:39:15,546 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:39:15,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-12-07 20:39:15,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-12-07 20:39:15,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-12-07 20:39:15,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 168 transitions. [2019-12-07 20:39:15,555 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 168 transitions. Word has length 18 [2019-12-07 20:39:15,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:39:15,556 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 168 transitions. [2019-12-07 20:39:15,556 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:39:15,556 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 168 transitions. [2019-12-07 20:39:15,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 20:39:15,557 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:39:15,557 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:39:15,758 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 20:39:15,759 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:39:15,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:39:15,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1006577033, now seen corresponding path program 1 times [2019-12-07 20:39:15,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:39:15,764 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510113766] [2019-12-07 20:39:15,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 20:39:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:39:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:39:17,282 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 20:39:17,283 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:39:17,483 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 20:39:17,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:39:17 BoogieIcfgContainer [2019-12-07 20:39:17,549 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:39:17,550 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:39:17,550 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:39:17,550 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:39:17,550 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:39:14" (3/4) ... [2019-12-07 20:39:17,552 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 20:39:17,609 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ffe97923-9775-427c-8671-ded48199bef1/bin/utaipan/witness.graphml [2019-12-07 20:39:17,609 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:39:17,611 INFO L168 Benchmark]: Toolchain (without parser) took 40871.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 952.4 MB in the beginning and 912.3 MB in the end (delta: 40.0 MB). Peak memory consumption was 178.5 MB. Max. memory is 11.5 GB. [2019-12-07 20:39:17,611 INFO L168 Benchmark]: CDTParser took 0.13 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 20:39:17,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -175.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:39:17,612 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:39:17,612 INFO L168 Benchmark]: Boogie Preprocessor took 52.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:39:17,613 INFO L168 Benchmark]: RCFGBuilder took 37067.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.1 MB). Peak memory consumption was 81.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:39:17,613 INFO L168 Benchmark]: TraceAbstraction took 3363.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 919.0 MB in the end (delta: 107.7 MB). Peak memory consumption was 107.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:39:17,613 INFO L168 Benchmark]: Witness Printer took 59.86 ms. Allocated memory is still 1.2 GB. Free memory was 919.0 MB in the beginning and 912.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:39:17,615 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 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 275.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -175.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 37067.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.1 MB). Peak memory consumption was 81.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3363.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 919.0 MB in the end (delta: 107.7 MB). Peak memory consumption was 107.7 MB. Max. memory is 11.5 GB. * Witness Printer took 59.86 ms. Allocated memory is still 1.2 GB. Free memory was 919.0 MB in the beginning and 912.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 286]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L276] double x = __VERIFIER_nondet_double(); [L277] double y = 1.0 / 0.0; [L260] __int32_t hx; VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L262] ieee_double_shape_type gh_u; [L263] gh_u.value = (x) [L264] EXPR gh_u.parts.msw [L264] (hx) = gh_u.parts.msw [L266] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L280] isfinite_double(x) && isinf_double(y) [L246] __int32_t hx, lx; VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L248] ieee_double_shape_type ew_u; [L249] ew_u.value = (x) [L250] EXPR ew_u.parts.msw [L250] (hx) = ew_u.parts.msw [L251] EXPR ew_u.parts.lsw [L251] (lx) = ew_u.parts.lsw [L253] hx &= 0x7fffffff [L254] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L255] hx = 0x7ff00000 - hx [L256] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L280] isfinite_double(x) && isinf_double(y) VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L280] COND TRUE isfinite_double(x) && isinf_double(y) [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L282] double res = __ieee754_atan2(y, x); [L285] COND TRUE res != pi_o_2 VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L286] __VERIFIER_error() VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 124 locations, 1 error locations. Result: UNSAFE, OverallTime: 3.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 343 SDtfs, 0 SDslu, 163 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 1004 SizeOfPredicates, 0 NumberOfNonLiveVariables, 252 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...