/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0681a_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_0681a_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 1990b587e642aad15e3e0c0d5b368810c379f55e --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_0681a_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 1990b587e642aad15e3e0c0d5b368810c379f55e --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 18:23:45,284 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:23:45,285 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:23:45,298 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:23:45,299 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:23:45,300 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:23:45,302 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:23:45,304 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:23:45,305 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:23:45,306 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:23:45,308 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:23:45,308 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:23:45,309 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:23:45,310 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:23:45,311 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:23:45,312 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:23:45,313 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:23:45,315 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:23:45,318 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:23:45,319 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:23:45,320 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:23:45,322 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:23:45,325 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:23:45,325 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:23:45,325 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:23:45,327 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:23:45,328 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:23:45,329 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:23:45,330 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:23:45,331 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:23:45,331 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:23:45,332 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:23:45,332 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:23:45,333 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:23:45,334 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:23:45,335 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:23:45,336 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:23:45,359 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:23:45,362 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:23:45,363 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:23:45,363 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:23:45,365 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:23:45,366 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:23:45,366 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:23:45,366 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:23:45,366 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:23:45,367 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:23:45,367 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:23:45,367 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:23:45,367 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:23:45,368 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:23:45,369 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:23:45,369 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:23:45,369 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:23:45,371 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:23:45,371 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:23:45,372 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:23:45,372 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:23:45,372 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:23:45,372 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:23:45,372 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:23:45,373 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:23:45,373 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:23:45,373 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:23:45,373 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:23:45,373 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:23:45,374 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 -> 1990b587e642aad15e3e0c0d5b368810c379f55e 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 18:23:45,458 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:23:45,478 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:23:45,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:23:45,484 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:23:45,484 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:23:45,485 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0681a_true-unreach-call.c [2018-09-21 18:23:45,835 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ea9b05c4/92e6b89934f441379e4aaad8bb3ee340/FLAG54d4061f9 [2018-09-21 18:23:46,025 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:23:46,026 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0681a_true-unreach-call.c [2018-09-21 18:23:46,035 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ea9b05c4/92e6b89934f441379e4aaad8bb3ee340/FLAG54d4061f9 [2018-09-21 18:23:46,053 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ea9b05c4/92e6b89934f441379e4aaad8bb3ee340 [2018-09-21 18:23:46,058 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:23:46,062 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:23:46,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:23:46,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:23:46,071 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:23:46,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:23:46" (1/1) ... [2018-09-21 18:23:46,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31e6ebb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:46, skipping insertion in model container [2018-09-21 18:23:46,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:23:46" (1/1) ... [2018-09-21 18:23:46,089 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:23:46,441 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:23:46,479 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:23:46,555 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:23:46,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:46 WrapperNode [2018-09-21 18:23:46,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:23:46,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:23:46,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:23:46,618 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:23:46,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:46" (1/1) ... [2018-09-21 18:23:46,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:46" (1/1) ... [2018-09-21 18:23:46,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:46" (1/1) ... [2018-09-21 18:23:46,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:46" (1/1) ... [2018-09-21 18:23:46,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:46" (1/1) ... [2018-09-21 18:23:46,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:46" (1/1) ... [2018-09-21 18:23:46,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:46" (1/1) ... [2018-09-21 18:23:46,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:23:46,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:23:46,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:23:46,692 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:23:46,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:46" (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 18:23:46,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:23:46,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:23:46,850 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:23:46,850 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-21 18:23:46,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2018-09-21 18:23:46,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-21 18:23:46,851 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:23:46,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:23:46,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:23:46,851 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:23:46,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:23:46,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:23:46,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:23:46,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:23:46,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:23:46,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:23:46,852 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-21 18:23:46,854 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2018-09-21 18:23:46,855 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-21 18:23:46,855 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:23:46,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:23:46,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:23:46,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:23:46,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:23:48,052 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:23:48,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:23:48 BoogieIcfgContainer [2018-09-21 18:23:48,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:23:48,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:23:48,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:23:48,058 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:23:48,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:23:46" (1/3) ... [2018-09-21 18:23:48,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ad37b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:23:48, skipping insertion in model container [2018-09-21 18:23:48,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:46" (2/3) ... [2018-09-21 18:23:48,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ad37b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:23:48, skipping insertion in model container [2018-09-21 18:23:48,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:23:48" (3/3) ... [2018-09-21 18:23:48,061 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0681a_true-unreach-call.c [2018-09-21 18:23:48,072 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:23:48,091 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:23:48,133 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:23:48,133 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:23:48,134 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:23:48,134 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:23:48,134 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:23:48,134 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:23:48,135 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:23:48,135 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:23:48,135 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:23:48,155 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2018-09-21 18:23:48,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 18:23:48,168 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:48,169 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:23:48,172 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:48,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1075486522, now seen corresponding path program 1 times [2018-09-21 18:23:48,180 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:23:48,181 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:23:48,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:23:48,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:48,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:23:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:48,380 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 18:23:48,383 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:48,383 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:23:48,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:23:48,405 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:23:48,406 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:23:48,408 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 2 states. [2018-09-21 18:23:48,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:48,455 INFO L93 Difference]: Finished difference Result 172 states and 212 transitions. [2018-09-21 18:23:48,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:23:48,457 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 18:23:48,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:48,478 INFO L225 Difference]: With dead ends: 172 [2018-09-21 18:23:48,478 INFO L226 Difference]: Without dead ends: 168 [2018-09-21 18:23:48,481 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 18:23:48,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2018-09-21 18:23:48,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2018-09-21 18:23:48,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-09-21 18:23:48,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 208 transitions. [2018-09-21 18:23:48,543 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 208 transitions. Word has length 19 [2018-09-21 18:23:48,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:48,543 INFO L480 AbstractCegarLoop]: Abstraction has 168 states and 208 transitions. [2018-09-21 18:23:48,543 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:23:48,544 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 208 transitions. [2018-09-21 18:23:48,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-21 18:23:48,547 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:48,547 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] [2018-09-21 18:23:48,548 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:48,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1258452584, now seen corresponding path program 1 times [2018-09-21 18:23:48,548 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:23:48,548 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:23:48,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:23:48,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:48,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:23:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:23:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:23:48,744 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:23:48,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:23:48 BoogieIcfgContainer [2018-09-21 18:23:48,799 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:23:48,799 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:23:48,799 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:23:48,800 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:23:48,800 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:23:48" (3/4) ... [2018-09-21 18:23:48,804 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:23:48,805 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:23:48,806 INFO L168 Benchmark]: Toolchain (without parser) took 2746.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 953.2 MB in the beginning and 1.0 GB in the end (delta: -49.9 MB). Peak memory consumption was 46.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:48,808 INFO L168 Benchmark]: CDTParser took 0.17 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 18:23:48,808 INFO L168 Benchmark]: CACSL2BoogieTranslator took 553.71 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 18:23:48,809 INFO L168 Benchmark]: Boogie Preprocessor took 73.50 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 18:23:48,810 INFO L168 Benchmark]: RCFGBuilder took 1361.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 931.7 MB in the beginning and 1.0 GB in the end (delta: -107.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:48,811 INFO L168 Benchmark]: TraceAbstraction took 744.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:48,812 INFO L168 Benchmark]: Witness Printer took 5.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:23:48,817 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 553.71 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 73.50 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 1361.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 931.7 MB in the beginning and 1.0 GB in the end (delta: -107.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 744.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 239]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 238, overapproximation of someUnaryDOUBLEoperation at line 42, overapproximation of bitwiseAnd at line 133, overapproximation of someUnaryFLOAToperation at line 234, overapproximation of someBinaryArithmeticFLOAToperation at line 135. Possible FailurePath: [L27-L32] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L27-L32] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L27-L32] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L27-L32] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L34-L39] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L34-L39] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L34-L39] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L34-L39] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L47-L49] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L115-L116] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; VAL [\old(huge_atan)=10737418251, \old(one_atan)=10737418241, \old(pi)=10737418247, \old(pi_lo_atan2)=10737418260, \old(pi_o_2)=10737418242, \old(pi_o_4)=10737418246, \old(tiny_atan2)=10737418254, \old(zero_atan2)=10737418252, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L233] float x = 0.0f; [L234] float y = -0.0f; VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, zero_atan2=0] [L235] CALL, EXPR __ieee754_atan2f(y, x) VAL [\old(x)=0, \old(y)=10737418259, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L119] float z; [L120] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=0, \old(y)=10737418259, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] [L123] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=0, \old(y)=10737418259, gf_u={10737418257:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] [L124] FCALL gf_u.value = (x) VAL [\old(x)=0, \old(y)=10737418259, gf_u={10737418257:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] [L125] EXPR, FCALL gf_u.word VAL [\old(x)=0, \old(y)=10737418259, gf_u={10737418257:0}, gf_u.word=6442450944, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] [L125] (hx) = gf_u.word VAL [\old(x)=0, \old(y)=10737418259, gf_u={10737418257:0}, gf_u.word=6442450944, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] [L125] FCALL (hx) = gf_u.word VAL [(hx) = gf_u.word=10737418245, \old(x)=0, \old(y)=10737418259, gf_u={10737418257:0}, gf_u.word=6442450944, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] [L126] COND FALSE !(0) VAL [\old(x)=0, \old(y)=10737418259, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] [L127] ix = hx & 0x7fffffff VAL [\old(x)=0, \old(y)=10737418259, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] [L129] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=0, \old(y)=10737418259, gf_u={10737418253:0}, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] [L130] FCALL gf_u.value = (y) VAL [\old(x)=0, \old(y)=10737418259, gf_u={10737418253:0}, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] [L131] EXPR, FCALL gf_u.word VAL [\old(x)=0, \old(y)=10737418259, gf_u={10737418253:0}, gf_u.word=10737418240, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] [L131] (hy) = gf_u.word VAL [\old(x)=0, \old(y)=10737418259, gf_u={10737418253:0}, gf_u.word=10737418240, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] [L131] FCALL (hy) = gf_u.word VAL [(hy) = gf_u.word=10737418261, \old(x)=0, \old(y)=10737418259, gf_u={10737418253:0}, gf_u.word=10737418240, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] [L132] COND FALSE !(0) VAL [\old(x)=0, \old(y)=10737418259, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] [L133] iy = hy & 0x7fffffff VAL [\old(x)=0, \old(y)=10737418259, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] [L134] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L135] RET return x + y; VAL [\old(x)=0, \old(y)=10737418259, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=-2147483648, ix=2139095041, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] [L235] EXPR __ieee754_atan2f(y, x) VAL [__ieee754_atan2f(y, x)=10737418250, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] [L235] float res = __ieee754_atan2f(y, x); [L238] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=10737418250, res == -0.0f && __signbit_float(res) == 1=0, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] [L238] COND FALSE, EXPR !(res == -0.0f && __signbit_float(res) == 1) VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=10737418250, res == -0.0f && __signbit_float(res) == 1=0, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] [L238] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L239] __VERIFIER_error() VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=10737418250, tiny_atan2=1/1000000000000000000000000000000, x=0, y=10737418259, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 172 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 212 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=172occurred 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, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 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 18:23:51,099 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:23:51,101 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:23:51,113 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:23:51,114 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:23:51,115 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:23:51,116 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:23:51,118 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:23:51,119 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:23:51,120 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:23:51,121 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:23:51,122 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:23:51,122 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:23:51,123 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:23:51,125 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:23:51,125 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:23:51,126 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:23:51,128 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:23:51,130 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:23:51,132 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:23:51,133 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:23:51,134 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:23:51,137 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:23:51,137 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:23:51,137 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:23:51,138 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:23:51,139 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:23:51,140 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:23:51,141 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:23:51,143 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:23:51,143 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:23:51,144 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:23:51,145 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:23:51,145 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:23:51,146 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:23:51,153 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:23:51,153 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:23:51,169 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:23:51,169 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:23:51,170 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:23:51,170 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:23:51,171 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:23:51,172 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:23:51,172 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:23:51,172 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:23:51,172 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:23:51,172 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:23:51,172 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:23:51,173 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:23:51,173 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:23:51,173 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:23:51,173 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:23:51,173 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:23:51,178 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:23:51,179 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:23:51,179 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:23:51,179 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:23:51,179 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:23:51,179 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:23:51,180 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:23:51,180 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:23:51,180 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:23:51,180 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:23:51,180 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:23:51,180 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:23:51,181 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:23:51,181 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:23:51,181 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:23:51,181 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 -> 1990b587e642aad15e3e0c0d5b368810c379f55e 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 18:23:51,234 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:23:51,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:23:51,258 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:23:51,260 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:23:51,260 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:23:51,261 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0681a_true-unreach-call.c [2018-09-21 18:23:51,600 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8ec41841/f740b36ff7ed4ef1b0633df4b1b65351/FLAG87a834c10 [2018-09-21 18:23:51,830 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:23:51,830 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0681a_true-unreach-call.c [2018-09-21 18:23:51,848 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8ec41841/f740b36ff7ed4ef1b0633df4b1b65351/FLAG87a834c10 [2018-09-21 18:23:51,872 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8ec41841/f740b36ff7ed4ef1b0633df4b1b65351 [2018-09-21 18:23:51,878 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:23:51,882 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:23:51,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:23:51,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:23:51,897 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:23:51,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:23:51" (1/1) ... [2018-09-21 18:23:51,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5291ec34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:51, skipping insertion in model container [2018-09-21 18:23:51,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:23:51" (1/1) ... [2018-09-21 18:23:51,916 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:23:52,260 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:23:52,286 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:23:52,356 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:23:52,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:52 WrapperNode [2018-09-21 18:23:52,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:23:52,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:23:52,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:23:52,419 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:23:52,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:52" (1/1) ... [2018-09-21 18:23:52,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:52" (1/1) ... [2018-09-21 18:23:52,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:52" (1/1) ... [2018-09-21 18:23:52,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:52" (1/1) ... [2018-09-21 18:23:52,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:52" (1/1) ... [2018-09-21 18:23:52,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:52" (1/1) ... [2018-09-21 18:23:52,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:52" (1/1) ... [2018-09-21 18:23:52,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:23:52,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:23:52,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:23:52,547 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:23:52,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:52" (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 18:23:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:23:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:23:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:23:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-21 18:23:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2018-09-21 18:23:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-21 18:23:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:23:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:23:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:23:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:23:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:23:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:23:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:23:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:23:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:23:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:23:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-21 18:23:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2018-09-21 18:23:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-21 18:23:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:23:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:23:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:23:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:23:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:23:53,027 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:53,055 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:53,160 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:53,170 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:54,107 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:54,117 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:57,025 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:57,078 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:24:03,515 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:24:05,682 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:24:07,181 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:24:07,187 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:24:07,309 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:24:07,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:24:07 BoogieIcfgContainer [2018-09-21 18:24:07,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:24:07,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:24:07,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:24:07,313 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:24:07,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:23:51" (1/3) ... [2018-09-21 18:24:07,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e0d8f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:24:07, skipping insertion in model container [2018-09-21 18:24:07,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:52" (2/3) ... [2018-09-21 18:24:07,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e0d8f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:24:07, skipping insertion in model container [2018-09-21 18:24:07,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:24:07" (3/3) ... [2018-09-21 18:24:07,317 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0681a_true-unreach-call.c [2018-09-21 18:24:07,325 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:24:07,333 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:24:07,372 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:24:07,373 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:24:07,373 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:24:07,374 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:24:07,374 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:24:07,374 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:24:07,374 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:24:07,374 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:24:07,375 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:24:07,398 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2018-09-21 18:24:07,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 18:24:07,412 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:24:07,413 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:24:07,417 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:24:07,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1075486522, now seen corresponding path program 1 times [2018-09-21 18:24:07,429 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:24:07,430 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 18:24:07,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:24:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:24:07,571 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:24:07,591 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 18:24:07,591 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:24:07,606 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:24:07,607 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:24:07,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:24:07,624 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:24:07,625 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:24:07,628 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 2 states. [2018-09-21 18:24:07,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:24:07,666 INFO L93 Difference]: Finished difference Result 172 states and 212 transitions. [2018-09-21 18:24:07,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:24:07,668 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 18:24:07,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:24:07,684 INFO L225 Difference]: With dead ends: 172 [2018-09-21 18:24:07,684 INFO L226 Difference]: Without dead ends: 168 [2018-09-21 18:24:07,687 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 18:24:07,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2018-09-21 18:24:07,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2018-09-21 18:24:07,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-09-21 18:24:07,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 208 transitions. [2018-09-21 18:24:07,752 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 208 transitions. Word has length 19 [2018-09-21 18:24:07,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:24:07,753 INFO L480 AbstractCegarLoop]: Abstraction has 168 states and 208 transitions. [2018-09-21 18:24:07,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:24:07,753 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 208 transitions. [2018-09-21 18:24:07,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-21 18:24:07,756 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:24:07,756 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] [2018-09-21 18:24:07,756 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:24:07,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1258452584, now seen corresponding path program 1 times [2018-09-21 18:24:07,758 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:24:07,759 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 18:24:07,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:24:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:24:07,926 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:24:08,147 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 18:24:08,159 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 18:24:08,160 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:24:08,180 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:08,204 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 18:24:08,205 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-21 18:24:08,292 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 18:24:08,306 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 18:24:08,306 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:24:08,324 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:08,356 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 18:24:08,357 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-21 18:24:08,918 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 18:24:08,925 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 18:24:08,925 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:24:08,936 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:08,962 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:24:08,963 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:35, output treesize:36 [2018-09-21 18:24:09,080 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 18:24:09,086 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 18:24:09,087 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:24:09,093 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:09,129 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:24:09,130 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:43, output treesize:24 [2018-09-21 18:24:09,646 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 18:24:09,646 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:24:09,663 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:24:09,663 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-21 18:24:09,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-21 18:24:09,667 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-21 18:24:09,668 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:24:09,668 INFO L87 Difference]: Start difference. First operand 168 states and 208 transitions. Second operand 13 states. [2018-09-21 18:24:10,107 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-09-21 18:24:11,304 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2018-09-21 18:24:12,243 WARN L178 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-21 18:24:14,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:24:14,783 INFO L93 Difference]: Finished difference Result 170 states and 209 transitions. [2018-09-21 18:24:14,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-21 18:24:14,786 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 37 [2018-09-21 18:24:14,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:24:14,789 INFO L225 Difference]: With dead ends: 170 [2018-09-21 18:24:14,790 INFO L226 Difference]: Without dead ends: 168 [2018-09-21 18:24:14,791 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2018-09-21 18:24:14,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2018-09-21 18:24:14,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2018-09-21 18:24:14,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-09-21 18:24:14,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 207 transitions. [2018-09-21 18:24:14,809 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 207 transitions. Word has length 37 [2018-09-21 18:24:14,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:24:14,810 INFO L480 AbstractCegarLoop]: Abstraction has 168 states and 207 transitions. [2018-09-21 18:24:14,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-21 18:24:14,810 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 207 transitions. [2018-09-21 18:24:14,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-21 18:24:14,813 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:24:14,813 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] [2018-09-21 18:24:14,813 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:24:14,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1539994193, now seen corresponding path program 1 times [2018-09-21 18:24:14,814 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:24:14,814 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 18:24:14,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:24:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:24:14,935 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:24:14,969 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 18:24:14,972 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 18:24:14,973 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:24:14,977 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:14,989 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 18:24:14,990 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:24:15,018 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 18:24:15,037 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 18:24:15,038 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:24:15,044 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:15,047 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 18:24:15,047 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:24:15,214 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 18:24:15,214 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:24:15,229 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:24:15,229 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:24:15,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:24:15,230 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:24:15,231 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:24:15,232 INFO L87 Difference]: Start difference. First operand 168 states and 207 transitions. Second operand 9 states. [2018-09-21 18:24:17,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:24:17,596 INFO L93 Difference]: Finished difference Result 213 states and 268 transitions. [2018-09-21 18:24:17,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:24:17,597 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-09-21 18:24:17,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:24:17,600 INFO L225 Difference]: With dead ends: 213 [2018-09-21 18:24:17,601 INFO L226 Difference]: Without dead ends: 161 [2018-09-21 18:24:17,601 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:24:17,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2018-09-21 18:24:17,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2018-09-21 18:24:17,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-09-21 18:24:17,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 192 transitions. [2018-09-21 18:24:17,622 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 192 transitions. Word has length 42 [2018-09-21 18:24:17,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:24:17,622 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 192 transitions. [2018-09-21 18:24:17,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:24:17,622 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 192 transitions. [2018-09-21 18:24:17,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-21 18:24:17,625 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:24:17,625 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] [2018-09-21 18:24:17,625 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:24:17,625 INFO L82 PathProgramCache]: Analyzing trace with hash 938887759, now seen corresponding path program 1 times [2018-09-21 18:24:17,627 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:24:17,627 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) [2018-09-21 18:24:17,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 18:24:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:24:17,729 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:24:17,854 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 18:24:17,860 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 18:24:17,860 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:24:17,864 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:17,874 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 18:24:17,874 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:24:17,893 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 18:24:17,897 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 18:24:17,897 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:24:17,904 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:17,906 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 18:24:17,907 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:24:18,293 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 18:24:18,294 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:24:18,312 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:24:18,312 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:24:18,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:24:18,313 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:24:18,313 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:24:18,313 INFO L87 Difference]: Start difference. First operand 161 states and 192 transitions. Second operand 10 states. [2018-09-21 18:24:21,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:24:21,982 INFO L93 Difference]: Finished difference Result 213 states and 261 transitions. [2018-09-21 18:24:21,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:24:21,983 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2018-09-21 18:24:21,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:24:21,986 INFO L225 Difference]: With dead ends: 213 [2018-09-21 18:24:21,987 INFO L226 Difference]: Without dead ends: 163 [2018-09-21 18:24:21,987 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:24:21,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-09-21 18:24:21,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 161. [2018-09-21 18:24:22,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-09-21 18:24:22,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 189 transitions. [2018-09-21 18:24:22,005 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 189 transitions. Word has length 42 [2018-09-21 18:24:22,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:24:22,005 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 189 transitions. [2018-09-21 18:24:22,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:24:22,005 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 189 transitions. [2018-09-21 18:24:22,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-21 18:24:22,008 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:24:22,008 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] [2018-09-21 18:24:22,008 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:24:22,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1618946129, now seen corresponding path program 1 times [2018-09-21 18:24:22,009 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:24:22,009 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 18:24:22,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:24:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:24:22,095 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:24:22,168 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 18:24:22,168 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:24:22,186 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:24:22,187 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-21 18:24:22,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-21 18:24:22,187 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-21 18:24:22,187 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-21 18:24:22,188 INFO L87 Difference]: Start difference. First operand 161 states and 189 transitions. Second operand 7 states. [2018-09-21 18:24:23,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:24:23,560 INFO L93 Difference]: Finished difference Result 165 states and 193 transitions. [2018-09-21 18:24:23,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-21 18:24:23,561 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2018-09-21 18:24:23,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:24:23,562 INFO L225 Difference]: With dead ends: 165 [2018-09-21 18:24:23,563 INFO L226 Difference]: Without dead ends: 165 [2018-09-21 18:24:23,563 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:24:23,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-09-21 18:24:23,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2018-09-21 18:24:23,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-09-21 18:24:23,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 193 transitions. [2018-09-21 18:24:23,574 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 193 transitions. Word has length 42 [2018-09-21 18:24:23,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:24:23,574 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 193 transitions. [2018-09-21 18:24:23,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-21 18:24:23,575 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 193 transitions. [2018-09-21 18:24:23,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-21 18:24:23,577 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:24:23,577 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] [2018-09-21 18:24:23,578 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:24:23,578 INFO L82 PathProgramCache]: Analyzing trace with hash -331900587, now seen corresponding path program 1 times [2018-09-21 18:24:23,578 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:24:23,578 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 18:24:23,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:24:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:24:23,711 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:24:23,829 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 18:24:23,835 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 18:24:23,836 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:24:23,854 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:23,896 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 18:24:23,896 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-21 18:24:23,957 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 18:24:23,983 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 18:24:23,983 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:24:23,989 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:24,002 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 18:24:24,003 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-21 18:24:24,135 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 18:24:24,145 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 18:24:24,146 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:24:24,152 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:24,170 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 18:24:24,170 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:31 [2018-09-21 18:24:24,216 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 18:24:24,240 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 18:24:24,240 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:24:24,264 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:24,294 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 18:24:24,295 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:19 [2018-09-21 18:24:24,862 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 18:24:24,862 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:24:24,873 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:24:24,873 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-21 18:24:24,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-21 18:24:24,874 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-21 18:24:24,874 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:24:24,874 INFO L87 Difference]: Start difference. First operand 165 states and 193 transitions. Second operand 13 states. [2018-09-21 18:24:26,831 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-09-21 18:24:28,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:24:28,405 INFO L93 Difference]: Finished difference Result 167 states and 194 transitions. [2018-09-21 18:24:28,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-21 18:24:28,407 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2018-09-21 18:24:28,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:24:28,408 INFO L225 Difference]: With dead ends: 167 [2018-09-21 18:24:28,408 INFO L226 Difference]: Without dead ends: 119 [2018-09-21 18:24:28,409 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=124, Invalid=526, Unknown=0, NotChecked=0, Total=650 [2018-09-21 18:24:28,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-09-21 18:24:28,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2018-09-21 18:24:28,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-09-21 18:24:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 131 transitions. [2018-09-21 18:24:28,415 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 131 transitions. Word has length 44 [2018-09-21 18:24:28,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:24:28,416 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 131 transitions. [2018-09-21 18:24:28,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-21 18:24:28,417 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 131 transitions. [2018-09-21 18:24:28,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-21 18:24:28,419 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:24:28,420 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, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:24:28,420 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:24:28,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1203645214, now seen corresponding path program 1 times [2018-09-21 18:24:28,421 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:24:28,421 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-21 18:24:28,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:24:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:24:28,540 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:24:28,572 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 18:24:28,576 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 18:24:28,577 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:24:28,581 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:28,592 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 18:24:28,592 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:24:28,612 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 18:24:28,615 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 18:24:28,616 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:24:28,618 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:28,621 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 18:24:28,621 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:24:28,681 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 18:24:28,681 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:24:28,697 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:24:28,698 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:24:28,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:24:28,698 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:24:28,698 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:24:28,699 INFO L87 Difference]: Start difference. First operand 119 states and 131 transitions. Second operand 8 states. [2018-09-21 18:24:29,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:24:29,315 INFO L93 Difference]: Finished difference Result 117 states and 127 transitions. [2018-09-21 18:24:29,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-21 18:24:29,317 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2018-09-21 18:24:29,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:24:29,318 INFO L225 Difference]: With dead ends: 117 [2018-09-21 18:24:29,318 INFO L226 Difference]: Without dead ends: 59 [2018-09-21 18:24:29,318 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:24:29,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-09-21 18:24:29,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-09-21 18:24:29,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-09-21 18:24:29,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 58 transitions. [2018-09-21 18:24:29,322 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 58 transitions. Word has length 56 [2018-09-21 18:24:29,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:24:29,322 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 58 transitions. [2018-09-21 18:24:29,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:24:29,322 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 58 transitions. [2018-09-21 18:24:29,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-21 18:24:29,325 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:24:29,325 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:24:29,325 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:24:29,325 INFO L82 PathProgramCache]: Analyzing trace with hash 689980774, now seen corresponding path program 1 times [2018-09-21 18:24:29,326 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:24:29,326 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-09-21 18:24:29,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:24:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:24:29,425 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:24:29,641 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 18:24:29,647 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 18:24:29,647 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:24:29,651 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:29,662 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 18:24:29,663 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:24:29,722 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 18:24:29,726 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 18:24:29,726 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:24:29,730 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:29,733 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 18:24:29,734 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:24:29,927 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 18:24:29,927 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:24:29,938 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:24:29,938 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-21 18:24:29,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-21 18:24:29,940 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-21 18:24:29,940 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:24:29,941 INFO L87 Difference]: Start difference. First operand 59 states and 58 transitions. Second operand 14 states. [2018-09-21 18:24:30,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:24:30,860 INFO L93 Difference]: Finished difference Result 57 states and 56 transitions. [2018-09-21 18:24:30,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 18:24:30,862 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 58 [2018-09-21 18:24:30,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:24:30,863 INFO L225 Difference]: With dead ends: 57 [2018-09-21 18:24:30,863 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:24:30,865 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2018-09-21 18:24:30,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:24:30,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:24:30,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:24:30,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:24:30,865 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2018-09-21 18:24:30,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:24:30,866 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:24:30,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-21 18:24:30,866 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:24:30,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:24:30,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:24:30 BoogieIcfgContainer [2018-09-21 18:24:30,873 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:24:30,873 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:24:30,873 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:24:30,873 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:24:30,874 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:24:07" (3/4) ... [2018-09-21 18:24:30,877 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:24:30,884 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:24:30,884 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-09-21 18:24:30,884 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_atan2f [2018-09-21 18:24:30,884 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:24:30,884 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2018-09-21 18:24:30,885 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-09-21 18:24:30,894 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2018-09-21 18:24:30,895 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-09-21 18:24:30,895 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-21 18:24:31,003 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:24:31,004 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:24:31,005 INFO L168 Benchmark]: Toolchain (without parser) took 39125.60 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 268.4 MB). Free memory was 951.9 MB in the beginning and 1.2 GB in the end (delta: -273.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:24:31,006 INFO L168 Benchmark]: CDTParser took 0.21 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 18:24:31,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 531.40 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 930.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:24:31,007 INFO L168 Benchmark]: Boogie Preprocessor took 127.71 ms. Allocated memory is still 1.0 GB. Free memory is still 930.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:24:31,007 INFO L168 Benchmark]: RCFGBuilder took 14762.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -145.0 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:24:31,008 INFO L168 Benchmark]: TraceAbstraction took 23562.13 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 127.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -158.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:24:31,008 INFO L168 Benchmark]: Witness Printer took 130.87 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:24:31,013 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 531.40 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 930.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 127.71 ms. Allocated memory is still 1.0 GB. Free memory is still 930.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 14762.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -145.0 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 23562.13 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 127.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -158.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 130.87 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 239]: 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 7 procedures, 172 locations, 1 error locations. SAFE Result, 23.5s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 17.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1258 SDtfs, 2070 SDslu, 6565 SDs, 0 SdLazy, 1147 SolverSat, 117 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 392 GetRequests, 271 SyntacticMatches, 1 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=172occurred 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 340 NumberOfCodeBlocks, 340 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 332 ConstructedInterpolants, 38 QuantifiedInterpolants, 107822 SizeOfPredicates, 69 NumberOfNonLiveVariables, 945 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...