/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0683a_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_0683a_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 2ceb6a5aec908c5f9f94f630a4301750946f82ed --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_0683a_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 2ceb6a5aec908c5f9f94f630a4301750946f82ed --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 18:24:39,766 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:24:39,767 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:24:39,781 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:24:39,781 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:24:39,782 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:24:39,784 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:24:39,786 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:24:39,788 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:24:39,789 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:24:39,790 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:24:39,791 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:24:39,792 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:24:39,793 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:24:39,794 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:24:39,795 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:24:39,796 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:24:39,798 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:24:39,801 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:24:39,802 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:24:39,804 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:24:39,805 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:24:39,808 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:24:39,809 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:24:39,809 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:24:39,814 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:24:39,815 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:24:39,816 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:24:39,820 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:24:39,821 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:24:39,821 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:24:39,822 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:24:39,822 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:24:39,826 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:24:39,828 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:24:39,829 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:24:39,831 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:24:39,860 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:24:39,861 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:24:39,862 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:24:39,862 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:24:39,862 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:24:39,863 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:24:39,863 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:24:39,863 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:24:39,863 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:24:39,867 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:24:39,868 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:24:39,868 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:24:39,868 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:24:39,868 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:24:39,869 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:24:39,869 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:24:39,869 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:24:39,870 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:24:39,870 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:24:39,870 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:24:39,870 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:24:39,872 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:24:39,872 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:24:39,872 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:24:39,873 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:24:39,873 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:24:39,873 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:24:39,873 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:24:39,873 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:24:39,874 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 -> 2ceb6a5aec908c5f9f94f630a4301750946f82ed 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 18:24:39,924 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:24:39,938 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:24:39,942 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:24:39,943 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:24:39,944 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:24:39,945 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0683a_true-unreach-call.c [2018-09-21 18:24:40,309 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e62860c0a/7b09ca44759f48a594e00ab67aca390d/FLAG8e6dc9265 [2018-09-21 18:24:40,522 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:24:40,523 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0683a_true-unreach-call.c [2018-09-21 18:24:40,532 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e62860c0a/7b09ca44759f48a594e00ab67aca390d/FLAG8e6dc9265 [2018-09-21 18:24:40,549 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e62860c0a/7b09ca44759f48a594e00ab67aca390d [2018-09-21 18:24:40,554 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:24:40,557 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:24:40,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:24:40,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:24:40,567 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:24:40,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:24:40" (1/1) ... [2018-09-21 18:24:40,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33009b4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:40, skipping insertion in model container [2018-09-21 18:24:40,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:24:40" (1/1) ... [2018-09-21 18:24:40,584 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:24:40,896 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:24:40,920 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:24:41,015 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:24:41,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:41 WrapperNode [2018-09-21 18:24:41,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:24:41,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:24:41,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:24:41,076 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:24:41,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:41" (1/1) ... [2018-09-21 18:24:41,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:41" (1/1) ... [2018-09-21 18:24:41,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:41" (1/1) ... [2018-09-21 18:24:41,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:41" (1/1) ... [2018-09-21 18:24:41,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:41" (1/1) ... [2018-09-21 18:24:41,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:41" (1/1) ... [2018-09-21 18:24:41,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:41" (1/1) ... [2018-09-21 18:24:41,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:24:41,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:24:41,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:24:41,170 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:24:41,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:41" (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 18:24:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:24:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:24:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:24:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-21 18:24:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2018-09-21 18:24:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-21 18:24:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2018-09-21 18:24:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:24:41,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:24:41,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:24:41,313 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:24:41,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:24:41,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:24:41,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:24:41,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:24:41,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:24:41,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:24:41,315 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-21 18:24:41,315 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2018-09-21 18:24:41,315 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-21 18:24:41,315 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2018-09-21 18:24:41,316 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:24:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:24:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:24:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:24:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:24:42,593 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:24:42,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:24:42 BoogieIcfgContainer [2018-09-21 18:24:42,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:24:42,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:24:42,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:24:42,602 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:24:42,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:24:40" (1/3) ... [2018-09-21 18:24:42,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7662c5a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:24:42, skipping insertion in model container [2018-09-21 18:24:42,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:41" (2/3) ... [2018-09-21 18:24:42,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7662c5a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:24:42, skipping insertion in model container [2018-09-21 18:24:42,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:24:42" (3/3) ... [2018-09-21 18:24:42,606 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0683a_true-unreach-call.c [2018-09-21 18:24:42,616 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:24:42,630 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:24:42,677 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:24:42,677 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:24:42,678 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:24:42,678 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:24:42,678 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:24:42,678 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:24:42,678 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:24:42,679 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:24:42,679 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:24:42,702 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states. [2018-09-21 18:24:42,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-21 18:24:42,716 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:24:42,717 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] [2018-09-21 18:24:42,719 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:24:42,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1313740356, now seen corresponding path program 1 times [2018-09-21 18:24:42,730 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:24:42,730 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:24:42,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:24:42,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:24:42,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:24:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:24:42,932 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 18:24:42,935 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:24:42,935 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:24:42,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:24:42,958 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:24:42,959 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:24:42,961 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 2 states. [2018-09-21 18:24:42,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:24:42,997 INFO L93 Difference]: Finished difference Result 190 states and 231 transitions. [2018-09-21 18:24:42,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:24:42,999 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2018-09-21 18:24:43,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:24:43,014 INFO L225 Difference]: With dead ends: 190 [2018-09-21 18:24:43,014 INFO L226 Difference]: Without dead ends: 185 [2018-09-21 18:24:43,016 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 18:24:43,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-09-21 18:24:43,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2018-09-21 18:24:43,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-09-21 18:24:43,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 225 transitions. [2018-09-21 18:24:43,085 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 225 transitions. Word has length 27 [2018-09-21 18:24:43,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:24:43,085 INFO L480 AbstractCegarLoop]: Abstraction has 185 states and 225 transitions. [2018-09-21 18:24:43,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:24:43,087 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 225 transitions. [2018-09-21 18:24:43,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-21 18:24:43,093 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:24:43,093 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] [2018-09-21 18:24:43,094 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:24:43,094 INFO L82 PathProgramCache]: Analyzing trace with hash -317554648, now seen corresponding path program 1 times [2018-09-21 18:24:43,094 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:24:43,095 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:24:43,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:24:43,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:24:43,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:24:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:24:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:24:43,407 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:24:43,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:24:43 BoogieIcfgContainer [2018-09-21 18:24:43,491 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:24:43,492 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:24:43,492 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:24:43,492 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:24:43,493 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:24:42" (3/4) ... [2018-09-21 18:24:43,505 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:24:43,505 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:24:43,506 INFO L168 Benchmark]: Toolchain (without parser) took 2951.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -101.9 MB). Peak memory consumption was 47.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:24:43,507 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:24:43,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 516.10 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 18:24:43,509 INFO L168 Benchmark]: Boogie Preprocessor took 93.82 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 18:24:43,510 INFO L168 Benchmark]: RCFGBuilder took 1425.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -157.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:24:43,511 INFO L168 Benchmark]: TraceAbstraction took 895.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:24:43,512 INFO L168 Benchmark]: Witness Printer took 12.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:24:43,516 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 516.10 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 93.82 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 1425.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -157.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 895.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. * Witness Printer took 12.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 255]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 254, overapproximation of someUnaryDOUBLEoperation at line 42, overapproximation of bitwiseAnd at line 133, 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)=10737418253, \old(one_atan)=10737418241, \old(pi)=10737418249, \old(pi_lo_atan2)=10737418264, \old(pi_o_2)=10737418242, \old(pi_o_4)=10737418246, \old(tiny_atan2)=10737418257, \old(zero_atan2)=10737418256, 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] [L247] float x = 1.0f / 0.0f; [L248] float y = __VERIFIER_nondet_float(); [L250] CALL, EXPR isfinite_float(y) VAL [\old(x)=10737418254, 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] [L229] __int32_t ix; VAL [\old(x)=10737418254, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418254, zero_atan2=0] [L231] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=10737418254, gf_u={10737418263:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418254, zero_atan2=0] [L232] FCALL gf_u.value = (x) VAL [\old(x)=10737418254, gf_u={10737418263:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418254, zero_atan2=0] [L233] EXPR, FCALL gf_u.word VAL [\old(x)=10737418254, gf_u={10737418263:0}, 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=10737418254, zero_atan2=0] [L233] (ix) = gf_u.word VAL [\old(x)=10737418254, gf_u={10737418263:0}, gf_u.word=6442450944, huge_atan=1000000000000000000000000000000, ix=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418254, zero_atan2=0] [L233] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=10737418255, \old(x)=10737418254, gf_u={10737418263:0}, gf_u.word=6442450944, huge_atan=1000000000000000000000000000000, ix=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418254, zero_atan2=0] [L234] COND FALSE !(0) VAL [\old(x)=10737418254, huge_atan=1000000000000000000000000000000, ix=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418254, zero_atan2=0] [L235] ix &= 0x7fffffff [L236] RET return (((ix) < 0x7f800000L)); VAL [\old(x)=10737418254, \result=1, huge_atan=1000000000000000000000000000000, ix=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418254, zero_atan2=0] [L250] EXPR isfinite_float(y) VAL [huge_atan=1000000000000000000000000000000, isfinite_float(y)=1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, y=10737418254, zero_atan2=0] [L250] COND TRUE isfinite_float(y) && y < 0.0f [L251] CALL, EXPR __ieee754_atan2f(y, x) VAL [\old(x)=10737418247, \old(y)=10737418254, 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)=10737418247, \old(y)=10737418254, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418247, y=10737418254, zero_atan2=0] [L123] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=10737418247, \old(y)=10737418254, gf_u={10737418258:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418247, y=10737418254, zero_atan2=0] [L124] FCALL gf_u.value = (x) VAL [\old(x)=10737418247, \old(y)=10737418254, gf_u={10737418258:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418247, y=10737418254, zero_atan2=0] [L125] EXPR, FCALL gf_u.word VAL [\old(x)=10737418247, \old(y)=10737418254, gf_u={10737418258:0}, gf_u.word=10737418240, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418247, y=10737418254, zero_atan2=0] [L125] (hx) = gf_u.word VAL [\old(x)=10737418247, \old(y)=10737418254, gf_u={10737418258:0}, 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=10737418247, y=10737418254, zero_atan2=0] [L125] FCALL (hx) = gf_u.word VAL [(hx) = gf_u.word=10737418245, \old(x)=10737418247, \old(y)=10737418254, gf_u={10737418258:0}, 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=10737418247, y=10737418254, zero_atan2=0] [L126] COND FALSE !(0) VAL [\old(x)=10737418247, \old(y)=10737418254, 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=10737418247, y=10737418254, zero_atan2=0] [L127] ix = hx & 0x7fffffff VAL [\old(x)=10737418247, \old(y)=10737418254, 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=10737418247, y=10737418254, zero_atan2=0] [L129] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=10737418247, \old(y)=10737418254, gf_u={10737418261:0}, 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=10737418247, y=10737418254, zero_atan2=0] [L130] FCALL gf_u.value = (y) VAL [\old(x)=10737418247, \old(y)=10737418254, gf_u={10737418261:0}, 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=10737418247, y=10737418254, zero_atan2=0] [L131] EXPR, FCALL gf_u.word VAL [\old(x)=10737418247, \old(y)=10737418254, gf_u={10737418261:0}, 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=10737418247, y=10737418254, zero_atan2=0] [L131] (hy) = gf_u.word VAL [\old(x)=10737418247, \old(y)=10737418254, gf_u={10737418261:0}, gf_u.word=-6442450944, 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=10737418247, y=10737418254, zero_atan2=0] [L131] FCALL (hy) = gf_u.word VAL [(hy) = gf_u.word=10737418248, \old(x)=10737418247, \old(y)=10737418254, gf_u={10737418261:0}, gf_u.word=-6442450944, 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=10737418247, y=10737418254, zero_atan2=0] [L132] COND FALSE !(0) VAL [\old(x)=10737418247, \old(y)=10737418254, 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=10737418247, y=10737418254, zero_atan2=0] [L133] iy = hy & 0x7fffffff VAL [\old(x)=10737418247, \old(y)=10737418254, 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=10737418247, y=10737418254, zero_atan2=0] [L134] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L135] RET return x + y; VAL [\old(x)=10737418247, \old(y)=10737418254, 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=10737418247, y=10737418254, zero_atan2=0] [L251] EXPR __ieee754_atan2f(y, x) VAL [__ieee754_atan2f(y, x)=10737418252, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418247, y=10737418254, zero_atan2=0] [L251] float res = __ieee754_atan2f(y, x); [L254] 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=10737418252, res == -0.0f && __signbit_float(res) == 1=0, tiny_atan2=1/1000000000000000000000000000000, x=10737418247, y=10737418254, zero_atan2=0] [L254] 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=10737418252, res == -0.0f && __signbit_float(res) == 1=0, tiny_atan2=1/1000000000000000000000000000000, x=10737418247, y=10737418254, zero_atan2=0] [L254] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L255] __VERIFIER_error() VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=10737418252, tiny_atan2=1/1000000000000000000000000000000, x=10737418247, y=10737418254, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 190 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 231 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=190occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 676 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 18:24:45,882 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:24:45,883 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:24:45,903 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:24:45,904 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:24:45,905 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:24:45,906 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:24:45,908 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:24:45,910 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:24:45,911 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:24:45,911 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:24:45,912 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:24:45,913 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:24:45,914 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:24:45,915 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:24:45,915 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:24:45,916 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:24:45,918 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:24:45,920 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:24:45,921 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:24:45,924 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:24:45,929 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:24:45,931 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:24:45,932 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:24:45,932 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:24:45,933 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:24:45,934 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:24:45,935 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:24:45,936 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:24:45,937 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:24:45,937 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:24:45,938 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:24:45,938 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:24:45,939 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:24:45,942 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:24:45,943 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:24:45,943 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:24:45,975 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:24:45,978 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:24:45,979 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:24:45,980 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:24:45,980 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:24:45,981 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:24:45,981 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:24:45,981 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:24:45,982 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:24:45,982 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:24:45,982 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:24:45,982 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:24:45,982 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:24:45,982 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:24:45,983 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:24:45,983 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:24:45,983 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:24:45,983 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:24:45,983 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:24:45,985 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:24:45,985 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:24:45,985 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:24:45,986 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:24:45,986 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:24:45,986 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:24:45,986 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:24:45,986 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:24:45,987 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:24:45,987 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:24:45,988 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:24:45,988 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:24:45,988 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 -> 2ceb6a5aec908c5f9f94f630a4301750946f82ed 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 18:24:46,061 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:24:46,074 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:24:46,080 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:24:46,082 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:24:46,082 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:24:46,083 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0683a_true-unreach-call.c [2018-09-21 18:24:46,425 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b281547de/318fc271dcc74a6d987a982a1cfc27e4/FLAG05d447ab3 [2018-09-21 18:24:46,653 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:24:46,654 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0683a_true-unreach-call.c [2018-09-21 18:24:46,672 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b281547de/318fc271dcc74a6d987a982a1cfc27e4/FLAG05d447ab3 [2018-09-21 18:24:46,697 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b281547de/318fc271dcc74a6d987a982a1cfc27e4 [2018-09-21 18:24:46,703 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:24:46,706 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:24:46,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:24:46,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:24:46,715 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:24:46,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:24:46" (1/1) ... [2018-09-21 18:24:46,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d5fda7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:46, skipping insertion in model container [2018-09-21 18:24:46,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:24:46" (1/1) ... [2018-09-21 18:24:46,734 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:24:47,129 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:24:47,156 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:24:47,218 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:24:47,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:47 WrapperNode [2018-09-21 18:24:47,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:24:47,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:24:47,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:24:47,269 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:24:47,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:47" (1/1) ... [2018-09-21 18:24:47,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:47" (1/1) ... [2018-09-21 18:24:47,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:47" (1/1) ... [2018-09-21 18:24:47,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:47" (1/1) ... [2018-09-21 18:24:47,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:47" (1/1) ... [2018-09-21 18:24:47,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:47" (1/1) ... [2018-09-21 18:24:47,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:47" (1/1) ... [2018-09-21 18:24:47,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:24:47,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:24:47,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:24:47,360 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:24:47,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:47" (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 18:24:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:24:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:24:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:24:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-21 18:24:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2018-09-21 18:24:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-21 18:24:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2018-09-21 18:24:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:24:47,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:24:47,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:24:47,521 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:24:47,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:24:47,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:24:47,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:24:47,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:24:47,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:24:47,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:24:47,522 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-21 18:24:47,522 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2018-09-21 18:24:47,522 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-21 18:24:47,522 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2018-09-21 18:24:47,522 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:24:47,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:24:47,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:24:47,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:24:47,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:24:47,842 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:24:47,876 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:24:47,924 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:24:47,948 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:24:48,862 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:24:48,891 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:24:49,753 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:24:49,795 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:24:51,933 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:24:51,975 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:24:58,127 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:25:00,330 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:25:03,259 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:25:03,271 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:25:03,307 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:25:03,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:25:03 BoogieIcfgContainer [2018-09-21 18:25:03,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:25:03,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:25:03,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:25:03,313 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:25:03,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:24:46" (1/3) ... [2018-09-21 18:25:03,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b68acf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:25:03, skipping insertion in model container [2018-09-21 18:25:03,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:24:47" (2/3) ... [2018-09-21 18:25:03,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b68acf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:25:03, skipping insertion in model container [2018-09-21 18:25:03,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:25:03" (3/3) ... [2018-09-21 18:25:03,317 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0683a_true-unreach-call.c [2018-09-21 18:25:03,325 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:25:03,333 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:25:03,373 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:25:03,373 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:25:03,374 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:25:03,374 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:25:03,374 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:25:03,374 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:25:03,374 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:25:03,374 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:25:03,375 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:25:03,396 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states. [2018-09-21 18:25:03,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-21 18:25:03,410 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:25:03,411 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] [2018-09-21 18:25:03,414 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:25:03,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1073767598, now seen corresponding path program 1 times [2018-09-21 18:25:03,425 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:25:03,426 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 18:25:03,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:25:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:25:03,572 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:25:03,592 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 18:25:03,592 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:25:03,607 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:25:03,607 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:25:03,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:25:03,624 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:25:03,624 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:25:03,627 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 2 states. [2018-09-21 18:25:03,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:25:03,663 INFO L93 Difference]: Finished difference Result 189 states and 230 transitions. [2018-09-21 18:25:03,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:25:03,665 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 26 [2018-09-21 18:25:03,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:25:03,680 INFO L225 Difference]: With dead ends: 189 [2018-09-21 18:25:03,681 INFO L226 Difference]: Without dead ends: 184 [2018-09-21 18:25:03,683 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 25 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 18:25:03,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-09-21 18:25:03,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2018-09-21 18:25:03,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-09-21 18:25:03,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 224 transitions. [2018-09-21 18:25:03,749 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 224 transitions. Word has length 26 [2018-09-21 18:25:03,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:25:03,750 INFO L480 AbstractCegarLoop]: Abstraction has 184 states and 224 transitions. [2018-09-21 18:25:03,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:25:03,750 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 224 transitions. [2018-09-21 18:25:03,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-09-21 18:25:03,753 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:25:03,753 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] [2018-09-21 18:25:03,753 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:25:03,754 INFO L82 PathProgramCache]: Analyzing trace with hash -556621734, now seen corresponding path program 1 times [2018-09-21 18:25:03,755 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:25:03,755 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 18:25:03,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:25:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:25:03,924 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:25:04,186 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 18:25:04,194 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 18:25:04,195 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:04,222 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:04,337 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 18:25:04,338 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-21 18:25:04,534 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 18:25:04,550 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 18:25:04,551 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:04,581 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:04,655 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 18:25:04,655 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-21 18:25:04,943 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 18:25:04,950 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 18:25:04,951 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:04,971 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:05,000 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 18:25:05,000 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:35, output treesize:36 [2018-09-21 18:25:05,134 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 18:25:05,140 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 18:25:05,141 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:05,147 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:05,166 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 18:25:05,167 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:43, output treesize:24 [2018-09-21 18:25:05,715 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 18:25:05,716 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:25:05,732 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:25:05,733 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-21 18:25:05,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-21 18:25:05,736 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-21 18:25:05,736 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:25:05,736 INFO L87 Difference]: Start difference. First operand 184 states and 224 transitions. Second operand 14 states. [2018-09-21 18:25:06,273 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-09-21 18:25:08,495 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-21 18:25:11,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:25:11,387 INFO L93 Difference]: Finished difference Result 186 states and 225 transitions. [2018-09-21 18:25:11,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-21 18:25:11,388 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 53 [2018-09-21 18:25:11,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:25:11,392 INFO L225 Difference]: With dead ends: 186 [2018-09-21 18:25:11,392 INFO L226 Difference]: Without dead ends: 184 [2018-09-21 18:25:11,393 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2018-09-21 18:25:11,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-09-21 18:25:11,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2018-09-21 18:25:11,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-09-21 18:25:11,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 223 transitions. [2018-09-21 18:25:11,408 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 223 transitions. Word has length 53 [2018-09-21 18:25:11,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:25:11,409 INFO L480 AbstractCegarLoop]: Abstraction has 184 states and 223 transitions. [2018-09-21 18:25:11,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-21 18:25:11,409 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 223 transitions. [2018-09-21 18:25:11,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-21 18:25:11,411 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:25:11,411 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 18:25:11,412 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:25:11,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1085847203, now seen corresponding path program 1 times [2018-09-21 18:25:11,413 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:25:11,413 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 18:25:11,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:25:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:25:11,544 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:25:11,591 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 18:25:11,598 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 18:25:11,599 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:11,604 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:11,621 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 18:25:11,621 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:25:11,653 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 18:25:11,657 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 18:25:11,657 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:11,660 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:11,663 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 18:25:11,663 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:25:11,868 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 18:25:11,868 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:25:11,883 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:25:11,883 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:25:11,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:25:11,884 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:25:11,884 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:25:11,885 INFO L87 Difference]: Start difference. First operand 184 states and 223 transitions. Second operand 9 states. [2018-09-21 18:25:13,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:25:13,402 INFO L93 Difference]: Finished difference Result 186 states and 224 transitions. [2018-09-21 18:25:13,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:25:13,403 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 58 [2018-09-21 18:25:13,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:25:13,407 INFO L225 Difference]: With dead ends: 186 [2018-09-21 18:25:13,407 INFO L226 Difference]: Without dead ends: 182 [2018-09-21 18:25:13,407 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:25:13,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-09-21 18:25:13,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2018-09-21 18:25:13,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-09-21 18:25:13,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 219 transitions. [2018-09-21 18:25:13,420 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 219 transitions. Word has length 58 [2018-09-21 18:25:13,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:25:13,420 INFO L480 AbstractCegarLoop]: Abstraction has 182 states and 219 transitions. [2018-09-21 18:25:13,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:25:13,421 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 219 transitions. [2018-09-21 18:25:13,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-21 18:25:13,423 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:25:13,423 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 18:25:13,423 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:25:13,423 INFO L82 PathProgramCache]: Analyzing trace with hash 484740769, now seen corresponding path program 1 times [2018-09-21 18:25:13,424 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:25:13,424 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 18:25:13,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:25:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:25:13,521 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:25:13,631 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 18:25:13,650 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 18:25:13,651 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:13,676 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:13,687 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 18:25:13,687 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:25:13,714 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 18:25:13,720 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 18:25:13,720 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:13,724 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:13,728 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 18:25:13,728 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:25:13,867 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 18:25:13,867 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:25:13,878 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:25:13,878 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:25:13,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:25:13,879 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:25:13,879 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:25:13,879 INFO L87 Difference]: Start difference. First operand 182 states and 219 transitions. Second operand 9 states. [2018-09-21 18:25:16,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:25:16,950 INFO L93 Difference]: Finished difference Result 225 states and 274 transitions. [2018-09-21 18:25:16,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:25:16,951 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 58 [2018-09-21 18:25:16,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:25:16,953 INFO L225 Difference]: With dead ends: 225 [2018-09-21 18:25:16,953 INFO L226 Difference]: Without dead ends: 176 [2018-09-21 18:25:16,954 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:25:16,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-09-21 18:25:16,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2018-09-21 18:25:16,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-09-21 18:25:16,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 208 transitions. [2018-09-21 18:25:16,967 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 208 transitions. Word has length 58 [2018-09-21 18:25:16,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:25:16,970 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 208 transitions. [2018-09-21 18:25:16,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:25:16,970 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 208 transitions. [2018-09-21 18:25:16,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-09-21 18:25:16,973 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:25:16,973 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, 1] [2018-09-21 18:25:16,973 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:25:16,973 INFO L82 PathProgramCache]: Analyzing trace with hash -2110183365, now seen corresponding path program 1 times [2018-09-21 18:25:16,974 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:25:16,974 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 18:25:16,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:25:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:25:17,108 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:25:17,129 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 18:25:17,133 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 18:25:17,133 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:17,141 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:17,155 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 18:25:17,155 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:25:17,173 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 18:25:17,177 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 18:25:17,177 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:17,180 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:17,183 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 18:25:17,183 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:25:17,587 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 18:25:17,591 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 18:25:17,591 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:17,595 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:17,606 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 18:25:17,606 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:25:17,676 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 18:25:17,688 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 18:25:17,688 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:17,698 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:17,702 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 18:25:17,702 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:25:18,109 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 18:25:18,109 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:25:18,120 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:25:18,120 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-21 18:25:18,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-21 18:25:18,121 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-21 18:25:18,121 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-09-21 18:25:18,122 INFO L87 Difference]: Start difference. First operand 176 states and 208 transitions. Second operand 15 states. [2018-09-21 18:25:21,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:25:21,786 INFO L93 Difference]: Finished difference Result 179 states and 210 transitions. [2018-09-21 18:25:21,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-21 18:25:21,789 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 59 [2018-09-21 18:25:21,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:25:21,790 INFO L225 Difference]: With dead ends: 179 [2018-09-21 18:25:21,790 INFO L226 Difference]: Without dead ends: 169 [2018-09-21 18:25:21,791 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=105, Invalid=651, Unknown=0, NotChecked=0, Total=756 [2018-09-21 18:25:21,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-09-21 18:25:21,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2018-09-21 18:25:21,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-09-21 18:25:21,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 194 transitions. [2018-09-21 18:25:21,801 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 194 transitions. Word has length 59 [2018-09-21 18:25:21,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:25:21,801 INFO L480 AbstractCegarLoop]: Abstraction has 169 states and 194 transitions. [2018-09-21 18:25:21,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-21 18:25:21,801 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 194 transitions. [2018-09-21 18:25:21,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-09-21 18:25:21,803 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:25:21,804 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, 1] [2018-09-21 18:25:21,804 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:25:21,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1043510597, now seen corresponding path program 1 times [2018-09-21 18:25:21,804 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:25:21,805 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 18:25:21,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:25:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:25:21,920 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:25:22,084 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 18:25:22,088 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 18:25:22,089 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:22,093 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:22,107 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 18:25:22,107 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:25:22,152 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 18:25:22,156 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 18:25:22,156 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:22,160 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:22,163 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 18:25:22,163 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:25:22,527 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 18:25:22,528 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:25:22,538 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:25:22,538 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:25:22,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:25:22,539 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:25:22,539 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:25:22,540 INFO L87 Difference]: Start difference. First operand 169 states and 194 transitions. Second operand 10 states. [2018-09-21 18:25:25,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:25:25,552 INFO L93 Difference]: Finished difference Result 173 states and 197 transitions. [2018-09-21 18:25:25,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:25:25,553 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 59 [2018-09-21 18:25:25,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:25:25,558 INFO L225 Difference]: With dead ends: 173 [2018-09-21 18:25:25,558 INFO L226 Difference]: Without dead ends: 171 [2018-09-21 18:25:25,559 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:25:25,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-09-21 18:25:25,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 169. [2018-09-21 18:25:25,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-09-21 18:25:25,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 192 transitions. [2018-09-21 18:25:25,568 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 192 transitions. Word has length 59 [2018-09-21 18:25:25,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:25:25,569 INFO L480 AbstractCegarLoop]: Abstraction has 169 states and 192 transitions. [2018-09-21 18:25:25,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:25:25,569 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 192 transitions. [2018-09-21 18:25:25,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-09-21 18:25:25,571 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:25:25,571 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, 1, 1] [2018-09-21 18:25:25,572 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:25:25,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1704367873, now seen corresponding path program 1 times [2018-09-21 18:25:25,572 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:25:25,572 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 18:25:25,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:25:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:25:25,676 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:25:25,758 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 18:25:25,758 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:25:25,768 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:25:25,769 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-21 18:25:25,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-21 18:25:25,770 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-21 18:25:25,770 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-21 18:25:25,770 INFO L87 Difference]: Start difference. First operand 169 states and 192 transitions. Second operand 6 states. [2018-09-21 18:25:29,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:25:29,221 INFO L93 Difference]: Finished difference Result 173 states and 196 transitions. [2018-09-21 18:25:29,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-21 18:25:29,223 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2018-09-21 18:25:29,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:25:29,225 INFO L225 Difference]: With dead ends: 173 [2018-09-21 18:25:29,225 INFO L226 Difference]: Without dead ends: 173 [2018-09-21 18:25:29,225 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:25:29,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-09-21 18:25:29,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2018-09-21 18:25:29,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-09-21 18:25:29,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 196 transitions. [2018-09-21 18:25:29,234 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 196 transitions. Word has length 60 [2018-09-21 18:25:29,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:25:29,234 INFO L480 AbstractCegarLoop]: Abstraction has 173 states and 196 transitions. [2018-09-21 18:25:29,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-21 18:25:29,234 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 196 transitions. [2018-09-21 18:25:29,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-09-21 18:25:29,236 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:25:29,237 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, 1, 1, 1] [2018-09-21 18:25:29,237 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:25:29,237 INFO L82 PathProgramCache]: Analyzing trace with hash 722219978, now seen corresponding path program 1 times [2018-09-21 18:25:29,237 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:25:29,237 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 18:25:29,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:25:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:25:29,396 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:25:29,430 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 18:25:29,435 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 18:25:29,435 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:29,439 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:29,448 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 18:25:29,448 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:25:29,469 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 18:25:29,473 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 18:25:29,473 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:29,476 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:29,478 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 18:25:29,479 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:25:29,613 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 18:25:29,613 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:25:29,624 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:25:29,624 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:25:29,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:25:29,625 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:25:29,625 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:25:29,625 INFO L87 Difference]: Start difference. First operand 173 states and 196 transitions. Second operand 9 states. [2018-09-21 18:25:32,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:25:32,090 INFO L93 Difference]: Finished difference Result 208 states and 238 transitions. [2018-09-21 18:25:32,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:25:32,091 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2018-09-21 18:25:32,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:25:32,092 INFO L225 Difference]: With dead ends: 208 [2018-09-21 18:25:32,092 INFO L226 Difference]: Without dead ends: 171 [2018-09-21 18:25:32,093 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 53 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 18:25:32,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-09-21 18:25:32,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2018-09-21 18:25:32,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-09-21 18:25:32,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 191 transitions. [2018-09-21 18:25:32,100 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 191 transitions. Word has length 61 [2018-09-21 18:25:32,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:25:32,100 INFO L480 AbstractCegarLoop]: Abstraction has 171 states and 191 transitions. [2018-09-21 18:25:32,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:25:32,100 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 191 transitions. [2018-09-21 18:25:32,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-21 18:25:32,101 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:25:32,101 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, 1, 1, 1, 1] [2018-09-21 18:25:32,102 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:25:32,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1481946053, now seen corresponding path program 1 times [2018-09-21 18:25:32,102 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:25:32,102 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-09-21 18:25:32,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:25:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:25:32,228 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:25:32,257 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 18:25:32,262 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 18:25:32,262 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:32,266 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:32,277 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 18:25:32,277 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:25:32,296 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 18:25:32,299 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 18:25:32,300 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:32,303 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:32,307 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 18:25:32,307 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:25:32,792 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2018-09-21 18:25:32,893 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 18:25:32,893 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:25:32,904 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:25:32,905 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 18:25:32,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 18:25:32,905 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 18:25:32,905 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-09-21 18:25:32,906 INFO L87 Difference]: Start difference. First operand 171 states and 191 transitions. Second operand 11 states. [2018-09-21 18:25:34,842 WARN L178 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2018-09-21 18:25:36,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:25:36,997 INFO L93 Difference]: Finished difference Result 169 states and 187 transitions. [2018-09-21 18:25:36,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 18:25:36,999 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 62 [2018-09-21 18:25:36,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:25:37,000 INFO L225 Difference]: With dead ends: 169 [2018-09-21 18:25:37,000 INFO L226 Difference]: Without dead ends: 77 [2018-09-21 18:25:37,001 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2018-09-21 18:25:37,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-09-21 18:25:37,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-09-21 18:25:37,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-09-21 18:25:37,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 76 transitions. [2018-09-21 18:25:37,004 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 76 transitions. Word has length 62 [2018-09-21 18:25:37,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:25:37,004 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 76 transitions. [2018-09-21 18:25:37,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 18:25:37,004 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 76 transitions. [2018-09-21 18:25:37,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-09-21 18:25:37,005 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:25:37,006 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:25:37,006 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:25:37,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1612452366, now seen corresponding path program 1 times [2018-09-21 18:25:37,007 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:25:37,007 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-09-21 18:25:37,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:25:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:25:37,123 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:25:37,262 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 18:25:37,270 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 18:25:37,271 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:37,274 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:37,283 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 18:25:37,284 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:25:37,310 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 18:25:37,313 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 18:25:37,313 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:37,316 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:37,318 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 18:25:37,319 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:25:37,484 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 18:25:37,484 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:25:37,495 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:25:37,496 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-21 18:25:37,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-21 18:25:37,496 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-21 18:25:37,496 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:25:37,497 INFO L87 Difference]: Start difference. First operand 77 states and 76 transitions. Second operand 13 states. [2018-09-21 18:25:40,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:25:40,942 INFO L93 Difference]: Finished difference Result 75 states and 74 transitions. [2018-09-21 18:25:40,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 18:25:40,943 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 76 [2018-09-21 18:25:40,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:25:40,944 INFO L225 Difference]: With dead ends: 75 [2018-09-21 18:25:40,944 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:25:40,944 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2018-09-21 18:25:40,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:25:40,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:25:40,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:25:40,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:25:40,946 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2018-09-21 18:25:40,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:25:40,946 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:25:40,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-21 18:25:40,946 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:25:40,946 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:25:40,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:25:40 BoogieIcfgContainer [2018-09-21 18:25:40,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:25:40,952 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:25:40,952 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:25:40,952 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:25:40,953 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:25:03" (3/4) ... [2018-09-21 18:25:40,957 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:25:40,963 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:25:40,963 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-09-21 18:25:40,963 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_atan2f [2018-09-21 18:25:40,964 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isfinite_float [2018-09-21 18:25:40,964 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:25:40,964 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2018-09-21 18:25:40,964 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-09-21 18:25:40,975 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2018-09-21 18:25:40,976 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-09-21 18:25:40,977 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-21 18:25:41,102 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:25:41,102 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:25:41,107 INFO L168 Benchmark]: Toolchain (without parser) took 54400.19 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 261.1 MB). Free memory was 947.8 MB in the beginning and 948.3 MB in the end (delta: -454.8 kB). Peak memory consumption was 260.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:25:41,108 INFO L168 Benchmark]: CDTParser took 0.20 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 18:25:41,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 560.48 ms. Allocated memory is still 1.0 GB. Free memory was 947.8 MB in the beginning and 926.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:25:41,111 INFO L168 Benchmark]: Boogie Preprocessor took 90.57 ms. Allocated memory is still 1.0 GB. Free memory is still 926.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:25:41,111 INFO L168 Benchmark]: RCFGBuilder took 15948.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 926.3 MB in the beginning and 1.1 GB in the end (delta: -156.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:25:41,111 INFO L168 Benchmark]: TraceAbstraction took 37642.95 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 107.0 MB). Free memory was 1.1 GB in the beginning and 956.5 MB in the end (delta: 126.0 MB). Peak memory consumption was 232.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:25:41,112 INFO L168 Benchmark]: Witness Printer took 150.24 ms. Allocated memory is still 1.3 GB. Free memory was 956.5 MB in the beginning and 948.3 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:25:41,114 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 560.48 ms. Allocated memory is still 1.0 GB. Free memory was 947.8 MB in the beginning and 926.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 90.57 ms. Allocated memory is still 1.0 GB. Free memory is still 926.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 15948.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 926.3 MB in the beginning and 1.1 GB in the end (delta: -156.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 37642.95 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 107.0 MB). Free memory was 1.1 GB in the beginning and 956.5 MB in the end (delta: 126.0 MB). Peak memory consumption was 232.9 MB. Max. memory is 11.5 GB. * Witness Printer took 150.24 ms. Allocated memory is still 1.3 GB. Free memory was 956.5 MB in the beginning and 948.3 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 255]: 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 8 procedures, 189 locations, 1 error locations. SAFE Result, 37.5s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 30.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1849 SDtfs, 2260 SDslu, 10399 SDs, 0 SdLazy, 1511 SolverSat, 144 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 22.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 639 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=189occurred 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, 10 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 572 NumberOfCodeBlocks, 572 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 562 ConstructedInterpolants, 95 QuantifiedInterpolants, 245667 SizeOfPredicates, 84 NumberOfNonLiveVariables, 1455 ConjunctsInSsa, 106 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...