./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1012a.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_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1012a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b885e206564f4e9bb7a421e0f9e82e87cbb5e4d9 ........................................................................................................................................................................................................................................................................................ 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_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1012a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b885e206564f4e9bb7a421e0f9e82e87cbb5e4d9 ...................................................................................................................................................................................................................................................................................................... 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 11:05:24,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:05:24,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:05:24,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:05:24,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:05:24,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:05:24,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:05:24,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:05:24,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:05:24,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:05:24,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:05:24,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:05:24,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:05:24,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:05:24,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:05:24,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:05:24,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:05:24,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:05:24,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:05:24,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:05:24,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:05:24,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:05:24,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:05:24,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:05:24,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:05:24,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:05:24,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:05:24,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:05:24,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:05:24,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:05:24,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:05:24,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:05:24,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:05:24,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:05:24,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:05:24,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:05:24,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:05:24,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:05:24,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:05:24,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:05:24,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:05:24,470 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 11:05:24,479 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:05:24,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:05:24,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:05:24,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:05:24,480 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:05:24,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:05:24,480 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:05:24,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:05:24,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:05:24,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:05:24,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:05:24,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:05:24,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:05:24,481 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:05:24,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:05:24,481 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:05:24,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:05:24,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:05:24,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:05:24,481 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:05:24,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:05:24,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:05:24,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:05:24,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:05:24,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:05:24,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 11:05:24,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:05:24,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:05:24,482 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:05:24,483 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b885e206564f4e9bb7a421e0f9e82e87cbb5e4d9 [2019-12-07 11:05:24,584 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:05:24,594 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:05:24,597 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:05:24,598 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:05:24,598 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:05:24,599 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1012a.c [2019-12-07 11:05:24,643 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/data/fd60b636a/a3e6278a841249c78c3e0651bc9e2cb6/FLAGc8ae09397 [2019-12-07 11:05:25,028 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:05:25,028 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/sv-benchmarks/c/float-newlib/double_req_bl_1012a.c [2019-12-07 11:05:25,033 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/data/fd60b636a/a3e6278a841249c78c3e0651bc9e2cb6/FLAGc8ae09397 [2019-12-07 11:05:25,415 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/data/fd60b636a/a3e6278a841249c78c3e0651bc9e2cb6 [2019-12-07 11:05:25,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:05:25,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:05:25,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:05:25,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:05:25,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:05:25,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:05:25" (1/1) ... [2019-12-07 11:05:25,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8207e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:25, skipping insertion in model container [2019-12-07 11:05:25,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:05:25" (1/1) ... [2019-12-07 11:05:25,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:05:25,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:05:25,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:05:25,578 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:05:25,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:05:25,610 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:05:25,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:25 WrapperNode [2019-12-07 11:05:25,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:05:25,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:05:25,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:05:25,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:05:25,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:25" (1/1) ... [2019-12-07 11:05:25,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:25" (1/1) ... [2019-12-07 11:05:25,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:05:25,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:05:25,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:05:25,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:05:25,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:25" (1/1) ... [2019-12-07 11:05:25,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:25" (1/1) ... [2019-12-07 11:05:25,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:25" (1/1) ... [2019-12-07 11:05:25,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:25" (1/1) ... [2019-12-07 11:05:25,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:25" (1/1) ... [2019-12-07 11:05:25,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:25" (1/1) ... [2019-12-07 11:05:25,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:25" (1/1) ... [2019-12-07 11:05:25,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:05:25,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:05:25,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:05:25,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:05:25,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:05:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:05:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 11:05:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 11:05:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 11:05:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:05:25,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:05:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 11:05:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:05:25,864 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:05:25,865 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 11:05:25,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:05:25 BoogieIcfgContainer [2019-12-07 11:05:25,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:05:25,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:05:25,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:05:25,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:05:25,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:05:25" (1/3) ... [2019-12-07 11:05:25,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0fab8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:05:25, skipping insertion in model container [2019-12-07 11:05:25,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:25" (2/3) ... [2019-12-07 11:05:25,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0fab8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:05:25, skipping insertion in model container [2019-12-07 11:05:25,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:05:25" (3/3) ... [2019-12-07 11:05:25,871 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012a.c [2019-12-07 11:05:25,877 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:05:25,881 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 11:05:25,888 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 11:05:25,903 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:05:25,903 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:05:25,903 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:05:25,903 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:05:25,903 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:05:25,903 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:05:25,904 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:05:25,904 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:05:25,913 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-12-07 11:05:25,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 11:05:25,917 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:05:25,917 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:05:25,918 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:05:25,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:05:25,921 INFO L82 PathProgramCache]: Analyzing trace with hash -969083750, now seen corresponding path program 1 times [2019-12-07 11:05:25,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:05:25,927 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134902937] [2019-12-07 11:05:25,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:05:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:05:25,999 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 11:05:25,999 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134902937] [2019-12-07 11:05:26,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:05:26,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 11:05:26,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831653478] [2019-12-07 11:05:26,003 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 11:05:26,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:05:26,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 11:05:26,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:05:26,013 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2019-12-07 11:05:26,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:05:26,024 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2019-12-07 11:05:26,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 11:05:26,025 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 11:05:26,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:05:26,031 INFO L225 Difference]: With dead ends: 34 [2019-12-07 11:05:26,031 INFO L226 Difference]: Without dead ends: 15 [2019-12-07 11:05:26,033 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 11:05:26,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-07 11:05:26,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-07 11:05:26,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 11:05:26,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2019-12-07 11:05:26,054 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 11 [2019-12-07 11:05:26,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:05:26,054 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2019-12-07 11:05:26,054 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 11:05:26,055 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2019-12-07 11:05:26,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 11:05:26,055 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:05:26,055 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:05:26,055 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:05:26,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:05:26,056 INFO L82 PathProgramCache]: Analyzing trace with hash 657368916, now seen corresponding path program 1 times [2019-12-07 11:05:26,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:05:26,056 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635411098] [2019-12-07 11:05:26,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:05:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:05:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:05:26,195 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:05:26,195 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:05:26,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:05:26 BoogieIcfgContainer [2019-12-07 11:05:26,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:05:26,216 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:05:26,216 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:05:26,217 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:05:26,217 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:05:25" (3/4) ... [2019-12-07 11:05:26,220 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 11:05:26,220 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:05:26,222 INFO L168 Benchmark]: Toolchain (without parser) took 803.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 940.9 MB in the beginning and 1.0 GB in the end (delta: -93.1 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:05:26,222 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:05:26,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 191.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:05:26,223 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.71 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:05:26,224 INFO L168 Benchmark]: Boogie Preprocessor took 21.94 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:05:26,224 INFO L168 Benchmark]: RCFGBuilder took 205.94 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:05:26,225 INFO L168 Benchmark]: TraceAbstraction took 349.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:05:26,225 INFO L168 Benchmark]: Witness Printer took 3.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:05:26,228 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 191.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.71 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.94 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 205.94 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 349.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 73]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 68, overapproximation of bitwiseAnd at line 38. Possible FailurePath: [L68] double x = 1.0 / 0.0; [L45] __uint32_t high; [L47] ieee_double_shape_type gh_u; [L48] gh_u.value = (x) [L49] EXPR gh_u.parts.msw [L49] (high) = gh_u.parts.msw [L52] ieee_double_shape_type sh_u; [L53] sh_u.value = (x) [L54] sh_u.parts.msw = (high & 0x7fffffff) [L55] EXPR sh_u.value [L55] (x) = sh_u.value [L57] return x; [L69] double res = fabs_double(x); [L31] __int32_t hx, lx; [L33] ieee_double_shape_type ew_u; [L34] ew_u.value = (x) [L35] EXPR ew_u.parts.msw [L35] (hx) = ew_u.parts.msw [L36] EXPR ew_u.parts.lsw [L36] (lx) = ew_u.parts.lsw [L38] hx &= 0x7fffffff [L39] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L40] hx = 0x7ff00000 - hx [L41] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L72] COND TRUE !isinf_double(res) [L73] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 17 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 11:05:27,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:05:27,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:05:27,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:05:27,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:05:27,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:05:27,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:05:27,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:05:27,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:05:27,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:05:27,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:05:27,623 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:05:27,623 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:05:27,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:05:27,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:05:27,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:05:27,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:05:27,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:05:27,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:05:27,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:05:27,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:05:27,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:05:27,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:05:27,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:05:27,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:05:27,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:05:27,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:05:27,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:05:27,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:05:27,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:05:27,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:05:27,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:05:27,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:05:27,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:05:27,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:05:27,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:05:27,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:05:27,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:05:27,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:05:27,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:05:27,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:05:27,642 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 11:05:27,652 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:05:27,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:05:27,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:05:27,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:05:27,653 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:05:27,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:05:27,653 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:05:27,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:05:27,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:05:27,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:05:27,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:05:27,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:05:27,654 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 11:05:27,654 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 11:05:27,654 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:05:27,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:05:27,655 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:05:27,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:05:27,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:05:27,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:05:27,655 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:05:27,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:05:27,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:05:27,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:05:27,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:05:27,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:05:27,656 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 11:05:27,656 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 11:05:27,656 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:05:27,656 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:05:27,656 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:05:27,657 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_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b885e206564f4e9bb7a421e0f9e82e87cbb5e4d9 [2019-12-07 11:05:27,824 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:05:27,833 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:05:27,835 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:05:27,836 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:05:27,837 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:05:27,837 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1012a.c [2019-12-07 11:05:27,877 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/data/796faf3ac/ec06ed8a6f1c400086c570ab7d5fcc14/FLAG1362ef326 [2019-12-07 11:05:28,214 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:05:28,215 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/sv-benchmarks/c/float-newlib/double_req_bl_1012a.c [2019-12-07 11:05:28,219 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/data/796faf3ac/ec06ed8a6f1c400086c570ab7d5fcc14/FLAG1362ef326 [2019-12-07 11:05:28,228 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/data/796faf3ac/ec06ed8a6f1c400086c570ab7d5fcc14 [2019-12-07 11:05:28,230 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:05:28,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:05:28,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:05:28,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:05:28,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:05:28,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:05:28" (1/1) ... [2019-12-07 11:05:28,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc928b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:28, skipping insertion in model container [2019-12-07 11:05:28,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:05:28" (1/1) ... [2019-12-07 11:05:28,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:05:28,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:05:28,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:05:28,381 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:05:28,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:05:28,453 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:05:28,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:28 WrapperNode [2019-12-07 11:05:28,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:05:28,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:05:28,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:05:28,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:05:28,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:28" (1/1) ... [2019-12-07 11:05:28,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:28" (1/1) ... [2019-12-07 11:05:28,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:05:28,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:05:28,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:05:28,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:05:28,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:28" (1/1) ... [2019-12-07 11:05:28,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:28" (1/1) ... [2019-12-07 11:05:28,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:28" (1/1) ... [2019-12-07 11:05:28,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:28" (1/1) ... [2019-12-07 11:05:28,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:28" (1/1) ... [2019-12-07 11:05:28,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:28" (1/1) ... [2019-12-07 11:05:28,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:28" (1/1) ... [2019-12-07 11:05:28,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:05:28,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:05:28,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:05:28,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:05:28,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:05:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 11:05:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 11:05:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:05:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 11:05:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:05:28,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:05:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 11:05:28,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:05:28,731 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:05:28,731 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 11:05:28,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:05:28 BoogieIcfgContainer [2019-12-07 11:05:28,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:05:28,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:05:28,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:05:28,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:05:28,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:05:28" (1/3) ... [2019-12-07 11:05:28,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f987128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:05:28, skipping insertion in model container [2019-12-07 11:05:28,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:05:28" (2/3) ... [2019-12-07 11:05:28,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f987128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:05:28, skipping insertion in model container [2019-12-07 11:05:28,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:05:28" (3/3) ... [2019-12-07 11:05:28,739 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012a.c [2019-12-07 11:05:28,745 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:05:28,749 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 11:05:28,756 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 11:05:28,771 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:05:28,771 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:05:28,771 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:05:28,771 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:05:28,771 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:05:28,771 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:05:28,771 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:05:28,771 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:05:28,780 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-12-07 11:05:28,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 11:05:28,785 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:05:28,786 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:05:28,786 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:05:28,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:05:28,790 INFO L82 PathProgramCache]: Analyzing trace with hash -969083750, now seen corresponding path program 1 times [2019-12-07 11:05:28,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:05:28,798 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268921224] [2019-12-07 11:05:28,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 11:05:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:05:28,860 INFO L264 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 11:05:28,863 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:05:28,872 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 11:05:28,872 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:05:28,875 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 11:05:28,875 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268921224] [2019-12-07 11:05:28,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:05:28,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 11:05:28,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789194232] [2019-12-07 11:05:28,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 11:05:28,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:05:28,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 11:05:28,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:05:28,889 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2019-12-07 11:05:28,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:05:28,900 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2019-12-07 11:05:28,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 11:05:28,901 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 11:05:28,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:05:28,907 INFO L225 Difference]: With dead ends: 34 [2019-12-07 11:05:28,907 INFO L226 Difference]: Without dead ends: 15 [2019-12-07 11:05:28,909 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 11:05:28,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-07 11:05:28,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-07 11:05:28,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 11:05:28,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2019-12-07 11:05:28,930 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 11 [2019-12-07 11:05:28,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:05:28,931 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2019-12-07 11:05:28,931 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 11:05:28,931 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2019-12-07 11:05:28,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 11:05:28,931 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:05:28,931 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:05:29,132 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 11:05:29,133 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:05:29,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:05:29,133 INFO L82 PathProgramCache]: Analyzing trace with hash 657368916, now seen corresponding path program 1 times [2019-12-07 11:05:29,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:05:29,137 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1403847281] [2019-12-07 11:05:29,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 11:05:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:05:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:05:29,485 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 11:05:29,485 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:05:29,687 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 11:05:29,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:05:29 BoogieIcfgContainer [2019-12-07 11:05:29,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:05:29,723 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:05:29,724 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:05:29,724 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:05:29,725 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:05:28" (3/4) ... [2019-12-07 11:05:29,727 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 11:05:29,773 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ec295fcf-18cf-462c-9eb9-52cf96f37163/bin/uautomizer/witness.graphml [2019-12-07 11:05:29,773 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:05:29,774 INFO L168 Benchmark]: Toolchain (without parser) took 1542.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -85.9 MB). Peak memory consumption was 47.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:05:29,774 INFO L168 Benchmark]: CDTParser took 0.14 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 11:05:29,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 221.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -177.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:05:29,775 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.45 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:05:29,775 INFO L168 Benchmark]: Boogie Preprocessor took 22.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:05:29,776 INFO L168 Benchmark]: RCFGBuilder took 223.00 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:05:29,776 INFO L168 Benchmark]: TraceAbstraction took 989.71 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: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 11.5 GB. [2019-12-07 11:05:29,776 INFO L168 Benchmark]: Witness Printer took 49.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:05:29,778 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 221.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -177.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.45 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 223.00 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 989.71 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: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 11.5 GB. * Witness Printer took 49.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 73]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L68] double x = 1.0 / 0.0; [L45] __uint32_t high; [L47] ieee_double_shape_type gh_u; [L48] gh_u.value = (x) [L49] EXPR gh_u.parts.msw [L49] (high) = gh_u.parts.msw [L52] ieee_double_shape_type sh_u; [L53] sh_u.value = (x) [L54] sh_u.parts.msw = (high & 0x7fffffff) [L55] EXPR sh_u.value [L55] (x) = sh_u.value [L57] return x; [L69] double res = fabs_double(x); [L31] __int32_t hx, lx; [L33] ieee_double_shape_type ew_u; [L34] ew_u.value = (x) [L35] EXPR ew_u.parts.msw [L35] (hx) = ew_u.parts.msw [L36] EXPR ew_u.parts.lsw [L36] (lx) = ew_u.parts.lsw [L38] hx &= 0x7fffffff [L39] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L40] hx = 0x7ff00000 - hx [L41] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L72] COND TRUE !isinf_double(res) [L73] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 17 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...