/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0490b_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0490b_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 2da48247b776e6180d2b605d662157645a3da524 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ............................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0490b_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 2da48247b776e6180d2b605d662157645a3da524 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:19:18,191 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:19:18,196 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:19:18,208 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:19:18,209 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:19:18,210 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:19:18,211 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:19:18,213 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:19:18,215 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:19:18,215 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:19:18,216 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:19:18,217 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:19:18,218 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:19:18,219 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:19:18,220 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:19:18,220 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:19:18,221 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:19:18,223 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:19:18,227 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:19:18,232 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:19:18,233 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:19:18,234 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:19:18,237 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:19:18,239 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:19:18,239 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:19:18,240 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:19:18,242 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:19:18,244 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:19:18,245 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:19:18,246 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:19:18,250 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:19:18,251 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:19:18,251 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:19:18,251 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:19:18,255 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:19:18,256 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:19:18,256 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:19:18,273 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:19:18,273 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:19:18,274 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:19:18,274 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:19:18,275 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:19:18,275 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:19:18,275 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:19:18,276 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:19:18,276 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:19:18,276 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:19:18,276 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:19:18,276 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:19:18,276 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:19:18,277 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:19:18,277 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:19:18,277 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:19:18,277 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:19:18,277 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:19:18,278 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:19:18,278 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:19:18,278 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:19:18,278 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:19:18,278 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:19:18,279 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:19:18,279 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:19:18,279 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:19:18,279 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:19:18,279 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:19:18,281 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:19:18,282 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 2da48247b776e6180d2b605d662157645a3da524 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:19:18,337 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:19:18,351 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:19:18,356 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:19:18,358 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:19:18,359 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:19:18,360 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0490b_true-unreach-call.c [2018-09-21 18:19:18,700 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1598307b/a941a9a76c6940658080a57f1e7ac579/FLAG3ba72afcd [2018-09-21 18:19:18,935 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:19:18,936 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0490b_true-unreach-call.c [2018-09-21 18:19:18,951 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1598307b/a941a9a76c6940658080a57f1e7ac579/FLAG3ba72afcd [2018-09-21 18:19:18,976 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1598307b/a941a9a76c6940658080a57f1e7ac579 [2018-09-21 18:19:18,980 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:19:18,984 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:19:18,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:19:18,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:19:18,993 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:19:18,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:19:18" (1/1) ... [2018-09-21 18:19:18,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55ade425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:18, skipping insertion in model container [2018-09-21 18:19:18,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:19:18" (1/1) ... [2018-09-21 18:19:19,011 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:19:19,311 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:19:19,337 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:19:19,403 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:19:19,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:19 WrapperNode [2018-09-21 18:19:19,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:19:19,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:19:19,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:19:19,451 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:19:19,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:19" (1/1) ... [2018-09-21 18:19:19,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:19" (1/1) ... [2018-09-21 18:19:19,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:19" (1/1) ... [2018-09-21 18:19:19,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:19" (1/1) ... [2018-09-21 18:19:19,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:19" (1/1) ... [2018-09-21 18:19:19,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:19" (1/1) ... [2018-09-21 18:19:19,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:19" (1/1) ... [2018-09-21 18:19:19,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:19:19,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:19:19,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:19:19,517 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:19:19,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:19:19,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:19:19,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:19:19,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:19:19,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-21 18:19:19,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-09-21 18:19:19,675 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:19:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:19:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:19:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:19:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-21 18:19:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:19:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:19:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:19:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:19:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:19:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:19:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-09-21 18:19:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:19:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:19:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:19:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:19:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:19:20,681 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:19:20,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:19:20 BoogieIcfgContainer [2018-09-21 18:19:20,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:19:20,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:19:20,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:19:20,686 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:19:20,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:19:18" (1/3) ... [2018-09-21 18:19:20,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365efde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:19:20, skipping insertion in model container [2018-09-21 18:19:20,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:19" (2/3) ... [2018-09-21 18:19:20,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365efde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:19:20, skipping insertion in model container [2018-09-21 18:19:20,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:19:20" (3/3) ... [2018-09-21 18:19:20,692 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0490b_true-unreach-call.c [2018-09-21 18:19:20,702 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:19:20,712 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:19:20,754 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:19:20,755 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:19:20,755 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:19:20,756 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:19:20,756 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:19:20,756 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:19:20,756 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:19:20,757 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:19:20,757 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:19:20,775 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states. [2018-09-21 18:19:20,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-21 18:19:20,789 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:19:20,790 INFO L376 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] [2018-09-21 18:19:20,794 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:19:20,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1102411470, now seen corresponding path program 1 times [2018-09-21 18:19:20,803 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:19:20,804 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:19:20,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:19:20,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:19:20,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:19:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:19:20,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:19:20,997 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:19:20,997 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:19:21,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:19:21,014 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:19:21,015 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:19:21,018 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 2 states. [2018-09-21 18:19:21,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:19:21,043 INFO L93 Difference]: Finished difference Result 109 states and 126 transitions. [2018-09-21 18:19:21,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:19:21,045 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-21 18:19:21,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:19:21,059 INFO L225 Difference]: With dead ends: 109 [2018-09-21 18:19:21,060 INFO L226 Difference]: Without dead ends: 105 [2018-09-21 18:19:21,062 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:19:21,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-09-21 18:19:21,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2018-09-21 18:19:21,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-09-21 18:19:21,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 122 transitions. [2018-09-21 18:19:21,121 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 122 transitions. Word has length 22 [2018-09-21 18:19:21,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:19:21,121 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 122 transitions. [2018-09-21 18:19:21,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:19:21,122 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 122 transitions. [2018-09-21 18:19:21,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:19:21,123 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:19:21,123 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:19:21,124 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:19:21,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1676661448, now seen corresponding path program 1 times [2018-09-21 18:19:21,125 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:19:21,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:19:21,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:19:21,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:19:21,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:19:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:19:21,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:19:21,282 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:19:21,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:19:21 BoogieIcfgContainer [2018-09-21 18:19:21,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:19:21,359 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:19:21,359 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:19:21,359 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:19:21,360 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:19:20" (3/4) ... [2018-09-21 18:19:21,363 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:19:21,364 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:19:21,364 INFO L168 Benchmark]: Toolchain (without parser) took 2383.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 950.5 MB in the beginning and 1.1 GB in the end (delta: -101.1 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:19:21,367 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:19:21,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 465.09 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 934.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:19:21,368 INFO L168 Benchmark]: Boogie Preprocessor took 65.20 ms. Allocated memory is still 1.0 GB. Free memory is still 934.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:19:21,369 INFO L168 Benchmark]: RCFGBuilder took 1165.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -151.7 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:19:21,370 INFO L168 Benchmark]: TraceAbstraction took 675.89 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:19:21,371 INFO L168 Benchmark]: Witness Printer took 4.53 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:19:21,378 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 465.09 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 934.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.20 ms. Allocated memory is still 1.0 GB. Free memory is still 934.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1165.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -151.7 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 675.89 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.53 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 173]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someUnaryDOUBLEoperation at line 87, overapproximation of bitwiseAnd at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 168. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L84-L91] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [\old(one_acos)=4294967315, \old(one_sqrt)=4294967306, \old(pi)=4294967305, \old(pi)=4294967308, \old(pi)=4294967318, \old(pS0_acos)=4294967300, \old(pS1_acos)=4294967316, \old(pS2_acos)=4294967317, \old(pS3_acos)=4294967303, \old(pS4_acos)=4294967307, \old(pS5_acos)=4294967319, \old(qS1_acos)=4294967302, \old(qS2_acos)=4294967309, \old(qS3_acos)=4294967313, \old(qS4_acos)=4294967304, \old(tiny_sqrt)=4294967314, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L168] float x = -1.0f / 0.0f; VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L169] CALL, EXPR __ieee754_acosf(x) VAL [\old(x)=4294967310, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L94] float z, p, q, r, w, s, c, df; [L95] __int32_t hx, ix; VAL [\old(x)=4294967310, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967310] [L97] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=4294967310, gf_u={4294967311:0}, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967310] [L98] FCALL gf_u.value = (x) VAL [\old(x)=4294967310, gf_u={4294967311:0}, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967310] [L99] EXPR, FCALL gf_u.word VAL [\old(x)=4294967310, gf_u={4294967311:0}, gf_u.word=4294967299, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967310] [L99] (hx) = gf_u.word VAL [\old(x)=4294967310, gf_u={4294967311:0}, gf_u.word=4294967299, hx=3, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967310] [L99] FCALL (hx) = gf_u.word VAL [(hx) = gf_u.word=4294967320, \old(x)=4294967310, gf_u={4294967311:0}, gf_u.word=4294967299, hx=3, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967310] [L100] COND FALSE !(0) VAL [\old(x)=4294967310, hx=3, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967310] [L101] ix = hx & 0x7fffffff VAL [\old(x)=4294967310, hx=3, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967310] [L102] COND TRUE ix == 0x3f800000 VAL [\old(x)=4294967310, hx=3, ix=1065353216, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967310] [L103] COND TRUE hx > 0 [L104] RET return 0.0; VAL [\old(x)=4294967310, \result=0, hx=3, ix=1065353216, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967310] [L169] EXPR __ieee754_acosf(x) VAL [__ieee754_acosf(x)=0, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967310] [L169] float res = __ieee754_acosf(x); [L172] CALL, EXPR isnan_float(res) VAL [\old(x)=0, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L13] RET return x != x; VAL [\old(x)=0, \result=0, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L172] EXPR isnan_float(res) VAL [isnan_float(res)=0, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=4294967310] [L172] COND TRUE !isnan_float(res) [L173] __VERIFIER_error() VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=4294967310] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 109 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 126 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=109occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:19:23,799 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:19:23,800 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:19:23,814 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:19:23,814 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:19:23,815 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:19:23,817 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:19:23,819 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:19:23,821 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:19:23,823 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:19:23,824 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:19:23,824 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:19:23,825 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:19:23,826 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:19:23,828 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:19:23,829 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:19:23,830 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:19:23,832 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:19:23,835 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:19:23,837 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:19:23,839 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:19:23,840 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:19:23,843 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:19:23,843 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:19:23,844 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:19:23,845 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:19:23,846 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:19:23,848 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:19:23,849 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:19:23,850 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:19:23,851 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:19:23,852 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:19:23,852 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:19:23,852 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:19:23,854 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:19:23,855 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:19:23,856 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:19:23,873 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:19:23,873 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:19:23,874 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:19:23,874 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:19:23,875 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:19:23,876 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:19:23,876 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:19:23,876 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:19:23,877 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:19:23,877 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:19:23,877 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:19:23,877 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:19:23,877 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:19:23,878 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:19:23,878 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:19:23,878 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:19:23,878 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:19:23,880 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:19:23,880 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:19:23,880 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:19:23,880 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:19:23,881 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:19:23,881 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:19:23,881 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:19:23,882 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:19:23,882 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:19:23,882 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:19:23,882 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:19:23,882 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:19:23,882 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:19:23,883 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:19:23,883 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 2da48247b776e6180d2b605d662157645a3da524 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:19:23,936 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:19:23,961 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:19:23,967 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:19:23,969 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:19:23,969 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:19:23,972 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0490b_true-unreach-call.c [2018-09-21 18:19:24,331 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/504fa1d1b/ebb76aa1f70e4110ba7c7f605bc90b9d/FLAG1daef984f [2018-09-21 18:19:24,503 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:19:24,504 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0490b_true-unreach-call.c [2018-09-21 18:19:24,514 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/504fa1d1b/ebb76aa1f70e4110ba7c7f605bc90b9d/FLAG1daef984f [2018-09-21 18:19:24,532 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/504fa1d1b/ebb76aa1f70e4110ba7c7f605bc90b9d [2018-09-21 18:19:24,539 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:19:24,543 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:19:24,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:19:24,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:19:24,553 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:19:24,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:19:24" (1/1) ... [2018-09-21 18:19:24,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d806234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:24, skipping insertion in model container [2018-09-21 18:19:24,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:19:24" (1/1) ... [2018-09-21 18:19:24,572 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:19:24,917 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:19:24,950 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:19:25,048 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:19:25,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:25 WrapperNode [2018-09-21 18:19:25,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:19:25,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:19:25,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:19:25,108 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:19:25,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:25" (1/1) ... [2018-09-21 18:19:25,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:25" (1/1) ... [2018-09-21 18:19:25,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:25" (1/1) ... [2018-09-21 18:19:25,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:25" (1/1) ... [2018-09-21 18:19:25,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:25" (1/1) ... [2018-09-21 18:19:25,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:25" (1/1) ... [2018-09-21 18:19:25,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:25" (1/1) ... [2018-09-21 18:19:25,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:19:25,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:19:25,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:19:25,174 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:19:25,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:19:25,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:19:25,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:19:25,326 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:19:25,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-21 18:19:25,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-09-21 18:19:25,327 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:19:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:19:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:19:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:19:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-21 18:19:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:19:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:19:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:19:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:19:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:19:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:19:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-09-21 18:19:25,329 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:19:25,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:19:25,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:19:25,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:19:25,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:19:25,644 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:19:25,666 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:19:32,799 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:19:32,809 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:19:36,456 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:19:36,466 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:19:36,473 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:19:36,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:19:36 BoogieIcfgContainer [2018-09-21 18:19:36,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:19:36,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:19:36,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:19:36,479 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:19:36,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:19:24" (1/3) ... [2018-09-21 18:19:36,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa79eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:19:36, skipping insertion in model container [2018-09-21 18:19:36,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:19:25" (2/3) ... [2018-09-21 18:19:36,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa79eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:19:36, skipping insertion in model container [2018-09-21 18:19:36,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:19:36" (3/3) ... [2018-09-21 18:19:36,484 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0490b_true-unreach-call.c [2018-09-21 18:19:36,495 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:19:36,505 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:19:36,553 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:19:36,554 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:19:36,555 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:19:36,555 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:19:36,556 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:19:36,556 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:19:36,556 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:19:36,556 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:19:36,556 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:19:36,577 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2018-09-21 18:19:36,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-21 18:19:36,590 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:19:36,592 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:19:36,595 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:19:36,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1249525969, now seen corresponding path program 1 times [2018-09-21 18:19:36,605 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:19:36,605 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 18:19:36,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:19:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:19:36,720 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:19:36,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:19:36,739 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:19:36,753 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:19:36,753 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:19:36,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:19:36,772 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:19:36,773 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:19:36,777 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 2 states. [2018-09-21 18:19:36,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:19:36,803 INFO L93 Difference]: Finished difference Result 108 states and 125 transitions. [2018-09-21 18:19:36,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:19:36,805 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-21 18:19:36,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:19:36,820 INFO L225 Difference]: With dead ends: 108 [2018-09-21 18:19:36,820 INFO L226 Difference]: Without dead ends: 104 [2018-09-21 18:19:36,823 INFO L606 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 [2018-09-21 18:19:36,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-09-21 18:19:36,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-09-21 18:19:36,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-09-21 18:19:36,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 121 transitions. [2018-09-21 18:19:36,877 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 121 transitions. Word has length 21 [2018-09-21 18:19:36,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:19:36,878 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 121 transitions. [2018-09-21 18:19:36,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:19:36,878 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 121 transitions. [2018-09-21 18:19:36,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-21 18:19:36,880 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:19:36,881 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:19:36,881 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:19:36,881 INFO L82 PathProgramCache]: Analyzing trace with hash -569388593, now seen corresponding path program 1 times [2018-09-21 18:19:36,883 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:19:36,883 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 18:19:36,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:19:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:19:37,001 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:19:37,184 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:19:37,189 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:19:37,190 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:19:37,194 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:19:37,217 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:19:37,218 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:19:37,255 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:19:37,261 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:19:37,261 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:19:37,265 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:19:37,268 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:19:37,269 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:19:37,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:19:37,713 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:19:37,725 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:19:37,726 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:19:37,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:19:37,728 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:19:37,728 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:19:37,729 INFO L87 Difference]: Start difference. First operand 104 states and 121 transitions. Second operand 9 states. [2018-09-21 18:19:38,431 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-21 18:19:45,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:19:45,845 INFO L93 Difference]: Finished difference Result 108 states and 124 transitions. [2018-09-21 18:19:45,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:19:45,848 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-09-21 18:19:45,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:19:45,854 INFO L225 Difference]: With dead ends: 108 [2018-09-21 18:19:45,857 INFO L226 Difference]: Without dead ends: 105 [2018-09-21 18:19:45,858 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:19:45,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-09-21 18:19:45,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2018-09-21 18:19:45,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-09-21 18:19:45,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 118 transitions. [2018-09-21 18:19:45,876 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 118 transitions. Word has length 30 [2018-09-21 18:19:45,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:19:45,877 INFO L480 AbstractCegarLoop]: Abstraction has 103 states and 118 transitions. [2018-09-21 18:19:45,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:19:45,877 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 118 transitions. [2018-09-21 18:19:45,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-21 18:19:45,879 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:19:45,879 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:19:45,880 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:19:45,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1946778321, now seen corresponding path program 1 times [2018-09-21 18:19:45,881 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:19:45,881 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 18:19:45,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:19:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:19:46,162 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:19:49,021 WARN L178 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-09-21 18:19:52,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:19:52,578 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:19:52,595 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:19:52,596 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:19:52,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:19:52,597 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:19:52,598 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:19:52,598 INFO L87 Difference]: Start difference. First operand 103 states and 118 transitions. Second operand 9 states. [2018-09-21 18:19:57,075 WARN L178 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 9 [2018-09-21 18:20:14,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:20:14,346 INFO L93 Difference]: Finished difference Result 110 states and 125 transitions. [2018-09-21 18:20:14,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-21 18:20:14,347 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-09-21 18:20:14,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:20:14,351 INFO L225 Difference]: With dead ends: 110 [2018-09-21 18:20:14,351 INFO L226 Difference]: Without dead ends: 105 [2018-09-21 18:20:14,352 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:20:14,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-09-21 18:20:14,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2018-09-21 18:20:14,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-09-21 18:20:14,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2018-09-21 18:20:14,364 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 30 [2018-09-21 18:20:14,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:20:14,364 INFO L480 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2018-09-21 18:20:14,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:20:14,365 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2018-09-21 18:20:14,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-21 18:20:14,366 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:20:14,367 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:20:14,367 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:20:14,367 INFO L82 PathProgramCache]: Analyzing trace with hash 182324299, now seen corresponding path program 1 times [2018-09-21 18:20:14,369 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:20:14,369 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 18:20:14,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:20:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:20:14,482 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:20:14,518 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:20:14,523 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:20:14,524 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:20:14,529 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:20:14,543 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:20:14,544 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:20:14,620 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:20:14,626 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:20:14,627 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:20:14,632 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:20:14,639 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:20:14,639 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:20:14,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:20:14,818 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:20:14,832 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:20:14,832 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:20:14,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:20:14,833 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:20:14,833 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:20:14,833 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand 9 states. [2018-09-21 18:20:21,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:20:21,105 INFO L93 Difference]: Finished difference Result 105 states and 118 transitions. [2018-09-21 18:20:21,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:20:21,106 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2018-09-21 18:20:21,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:20:21,108 INFO L225 Difference]: With dead ends: 105 [2018-09-21 18:20:21,109 INFO L226 Difference]: Without dead ends: 80 [2018-09-21 18:20:21,109 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:20:21,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-09-21 18:20:21,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-09-21 18:20:21,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-09-21 18:20:21,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2018-09-21 18:20:21,120 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 32 [2018-09-21 18:20:21,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:20:21,120 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2018-09-21 18:20:21,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:20:21,121 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2018-09-21 18:20:21,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-21 18:20:21,122 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:20:21,122 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:20:21,122 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:20:21,124 INFO L82 PathProgramCache]: Analyzing trace with hash -14189206, now seen corresponding path program 1 times [2018-09-21 18:20:21,124 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:20:21,125 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-21 18:20:21,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:20:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:20:22,378 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:20:22,459 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:20:22,464 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:20:22,465 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:20:22,469 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:20:22,482 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:20:22,482 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:20:22,504 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:20:22,508 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:20:22,509 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:20:22,513 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:20:22,516 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:20:22,517 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:20:22,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:20:22,669 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:20:22,693 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:20:22,693 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:20:22,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:20:22,694 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:20:22,694 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:20:22,694 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand 9 states. [2018-09-21 18:20:28,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:20:28,526 INFO L93 Difference]: Finished difference Result 82 states and 92 transitions. [2018-09-21 18:20:28,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:20:28,528 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2018-09-21 18:20:28,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:20:28,530 INFO L225 Difference]: With dead ends: 82 [2018-09-21 18:20:28,530 INFO L226 Difference]: Without dead ends: 79 [2018-09-21 18:20:28,531 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:20:28,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-09-21 18:20:28,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-09-21 18:20:28,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-09-21 18:20:28,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 89 transitions. [2018-09-21 18:20:28,537 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 89 transitions. Word has length 32 [2018-09-21 18:20:28,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:20:28,542 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 89 transitions. [2018-09-21 18:20:28,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:20:28,542 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 89 transitions. [2018-09-21 18:20:28,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-21 18:20:28,548 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:20:28,548 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:20:28,549 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:20:28,551 INFO L82 PathProgramCache]: Analyzing trace with hash -231609589, now seen corresponding path program 1 times [2018-09-21 18:20:28,552 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:20:28,552 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-21 18:20:28,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:20:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:20:29,900 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:20:29,940 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:20:29,945 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:20:29,946 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:20:29,949 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:20:29,962 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:20:29,963 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:20:30,010 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:20:30,022 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:20:30,023 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:20:30,045 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:20:30,049 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:20:30,049 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:20:30,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:20:30,207 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:20:30,244 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:20:30,244 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:20:30,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:20:30,245 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:20:30,245 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:20:30,246 INFO L87 Difference]: Start difference. First operand 79 states and 89 transitions. Second operand 9 states. [2018-09-21 18:20:33,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:20:33,579 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2018-09-21 18:20:33,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:20:33,580 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2018-09-21 18:20:33,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:20:33,581 INFO L225 Difference]: With dead ends: 71 [2018-09-21 18:20:33,581 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:20:33,581 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:20:33,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:20:33,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:20:33,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:20:33,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:20:33,582 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2018-09-21 18:20:33,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:20:33,582 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:20:33,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:20:33,583 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:20:33,583 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:20:33,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:20:33 BoogieIcfgContainer [2018-09-21 18:20:33,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:20:33,589 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:20:33,589 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:20:33,589 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:20:33,590 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:19:36" (3/4) ... [2018-09-21 18:20:33,594 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:20:33,601 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-21 18:20:33,602 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_acosf [2018-09-21 18:20:33,602 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:20:33,602 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:20:33,602 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-09-21 18:20:33,610 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2018-09-21 18:20:33,610 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-09-21 18:20:33,611 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-21 18:20:33,611 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:20:33,725 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:20:33,725 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:20:33,727 INFO L168 Benchmark]: Toolchain (without parser) took 69186.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.0 MB). Free memory was 953.2 MB in the beginning and 1.2 GB in the end (delta: -212.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:20:33,727 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:20:33,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 562.82 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:20:33,728 INFO L168 Benchmark]: Boogie Preprocessor took 64.78 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:20:33,728 INFO L168 Benchmark]: RCFGBuilder took 11300.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -146.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:20:33,729 INFO L168 Benchmark]: TraceAbstraction took 57114.29 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -95.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:20:33,729 INFO L168 Benchmark]: Witness Printer took 136.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:20:33,734 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 562.82 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.78 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 11300.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -146.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 57114.29 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -95.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 136.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 173]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 108 locations, 1 error locations. SAFE Result, 57.0s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 45.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 594 SDtfs, 323 SDslu, 2898 SDs, 0 SdLazy, 368 SolverSat, 18 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 35.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 220 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 14.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 188 ConstructedInterpolants, 24 QuantifiedInterpolants, 37364 SizeOfPredicates, 36 NumberOfNonLiveVariables, 690 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...