/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1300_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 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/double_req_bl_1300_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 ee5ae4bbae935ee4fc29ea9e50ac81dc390a543f .................................................................................................................................................................................................................................................................................................................................................................. 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/double_req_bl_1300_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 ee5ae4bbae935ee4fc29ea9e50ac81dc390a543f ........................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:07:28,695 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:07:28,697 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:07:28,710 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:07:28,710 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:07:28,712 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:07:28,713 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:07:28,715 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:07:28,717 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:07:28,718 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:07:28,719 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:07:28,720 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:07:28,721 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:07:28,722 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:07:28,724 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:07:28,724 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:07:28,725 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:07:28,728 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:07:28,730 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:07:28,732 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:07:28,733 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:07:28,735 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:07:28,737 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:07:28,738 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:07:28,738 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:07:28,740 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:07:28,741 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:07:28,742 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:07:28,743 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:07:28,744 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:07:28,744 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:07:28,746 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:07:28,746 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:07:28,746 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:07:28,748 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:07:28,749 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:07:28,749 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:07:28,773 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:07:28,776 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:07:28,778 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:07:28,778 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:07:28,779 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:07:28,779 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:07:28,779 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:07:28,780 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:07:28,780 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:07:28,780 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:07:28,780 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:07:28,780 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:07:28,781 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:07:28,781 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:07:28,781 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:07:28,781 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:07:28,781 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:07:28,783 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:07:28,783 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:07:28,783 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:07:28,783 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:07:28,784 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:07:28,784 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:07:28,784 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:07:28,784 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:07:28,784 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:07:28,785 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:07:28,785 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:07:28,785 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:07:28,785 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 -> ee5ae4bbae935ee4fc29ea9e50ac81dc390a543f [2018-09-20 15:07:28,863 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:07:28,882 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:07:28,888 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:07:28,890 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:07:28,891 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:07:28,892 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1300_true-unreach-call.c [2018-09-20 15:07:29,253 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3556b7bc6/9ebda8955f884de8ace5a396f7f29d24/FLAG95b420dbb [2018-09-20 15:07:29,491 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:07:29,493 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1300_true-unreach-call.c [2018-09-20 15:07:29,506 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3556b7bc6/9ebda8955f884de8ace5a396f7f29d24/FLAG95b420dbb [2018-09-20 15:07:29,534 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3556b7bc6/9ebda8955f884de8ace5a396f7f29d24 [2018-09-20 15:07:29,539 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:07:29,544 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:07:29,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:07:29,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:07:29,557 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:07:29,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:07:29" (1/1) ... [2018-09-20 15:07:29,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41c23af5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:29, skipping insertion in model container [2018-09-20 15:07:29,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:07:29" (1/1) ... [2018-09-20 15:07:29,577 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:07:29,808 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:07:29,828 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:07:29,845 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:07:29,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:29 WrapperNode [2018-09-20 15:07:29,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:07:29,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:07:29,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:07:29,895 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:07:29,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:29" (1/1) ... [2018-09-20 15:07:29,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:29" (1/1) ... [2018-09-20 15:07:29,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:29" (1/1) ... [2018-09-20 15:07:29,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:29" (1/1) ... [2018-09-20 15:07:29,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:29" (1/1) ... [2018-09-20 15:07:29,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:29" (1/1) ... [2018-09-20 15:07:29,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:29" (1/1) ... [2018-09-20 15:07:29,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:07:29,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:07:29,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:07:29,979 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:07:29,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:29" (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 [2018-09-20 15:07:30,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:07:30,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:07:30,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-20 15:07:30,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:07:30,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2018-09-20 15:07:30,065 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:07:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:07:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-20 15:07:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-20 15:07:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:07:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:07:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:07:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:07:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:07:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2018-09-20 15:07:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:07:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:07:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:07:30,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:07:30,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:07:30,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:07:30,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:07:30,799 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:07:30,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:07:30 BoogieIcfgContainer [2018-09-20 15:07:30,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:07:30,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:07:30,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:07:30,804 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:07:30,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:07:29" (1/3) ... [2018-09-20 15:07:30,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b05cf41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:07:30, skipping insertion in model container [2018-09-20 15:07:30,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:29" (2/3) ... [2018-09-20 15:07:30,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b05cf41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:07:30, skipping insertion in model container [2018-09-20 15:07:30,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:07:30" (3/3) ... [2018-09-20 15:07:30,808 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1300_true-unreach-call.c [2018-09-20 15:07:30,818 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:07:30,827 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:07:30,878 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:07:30,879 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:07:30,879 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:07:30,879 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:07:30,879 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:07:30,879 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:07:30,880 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:07:30,880 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:07:30,880 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:07:30,902 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2018-09-20 15:07:30,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-20 15:07:30,911 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:07:30,912 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] [2018-09-20 15:07:30,915 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:07:30,921 INFO L82 PathProgramCache]: Analyzing trace with hash -345042561, now seen corresponding path program 1 times [2018-09-20 15:07:30,923 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:07:30,924 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:07:30,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:07:30,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:07:30,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:07:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:07:31,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:07:31,088 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:07:31,088 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:07:31,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:07:31,108 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:07:31,109 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:07:31,112 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 2 states. [2018-09-20 15:07:31,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:07:31,141 INFO L93 Difference]: Finished difference Result 106 states and 119 transitions. [2018-09-20 15:07:31,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:07:31,143 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-09-20 15:07:31,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:07:31,152 INFO L225 Difference]: With dead ends: 106 [2018-09-20 15:07:31,153 INFO L226 Difference]: Without dead ends: 52 [2018-09-20 15:07:31,157 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 [2018-09-20 15:07:31,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-09-20 15:07:31,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-09-20 15:07:31,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-09-20 15:07:31,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-09-20 15:07:31,207 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 24 [2018-09-20 15:07:31,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:07:31,208 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-09-20 15:07:31,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:07:31,208 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-09-20 15:07:31,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-20 15:07:31,211 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:07:31,211 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] [2018-09-20 15:07:31,211 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:07:31,212 INFO L82 PathProgramCache]: Analyzing trace with hash 701954569, now seen corresponding path program 1 times [2018-09-20 15:07:31,212 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:07:31,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:07:31,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:07:31,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:07:31,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:07:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:07:31,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:07:31,371 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:07:31,371 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-20 15:07:31,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-20 15:07:31,374 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-20 15:07:31,374 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 15:07:31,375 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 3 states. [2018-09-20 15:07:31,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:07:31,436 INFO L93 Difference]: Finished difference Result 72 states and 71 transitions. [2018-09-20 15:07:31,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-20 15:07:31,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2018-09-20 15:07:31,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:07:31,439 INFO L225 Difference]: With dead ends: 72 [2018-09-20 15:07:31,439 INFO L226 Difference]: Without dead ends: 52 [2018-09-20 15:07:31,440 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 15:07:31,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-09-20 15:07:31,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-09-20 15:07:31,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-09-20 15:07:31,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 51 transitions. [2018-09-20 15:07:31,448 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 51 transitions. Word has length 46 [2018-09-20 15:07:31,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:07:31,449 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 51 transitions. [2018-09-20 15:07:31,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-20 15:07:31,449 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 51 transitions. [2018-09-20 15:07:31,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-20 15:07:31,451 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:07:31,451 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] [2018-09-20 15:07:31,451 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:07:31,452 INFO L82 PathProgramCache]: Analyzing trace with hash -766864652, now seen corresponding path program 1 times [2018-09-20 15:07:31,452 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:07:31,452 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:07:31,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:07:31,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:07:31,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:07:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:07:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:07:31,774 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:07:31,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:07:31 BoogieIcfgContainer [2018-09-20 15:07:31,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:07:31,831 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:07:31,831 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:07:31,831 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:07:31,832 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:07:30" (3/4) ... [2018-09-20 15:07:31,840 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:07:31,840 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:07:31,841 INFO L168 Benchmark]: Toolchain (without parser) took 2300.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 954.5 MB in the beginning and 1.0 GB in the end (delta: -92.1 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:07:31,848 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. [2018-09-20 15:07:31,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.97 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:07:31,852 INFO L168 Benchmark]: Boogie Preprocessor took 83.25 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 938.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:07:31,854 INFO L168 Benchmark]: RCFGBuilder took 821.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 938.4 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:07:31,857 INFO L168 Benchmark]: TraceAbstraction took 1029.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:07:31,858 INFO L168 Benchmark]: Witness Printer took 9.61 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:07:31,864 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 348.97 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 83.25 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 938.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 821.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 938.4 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1029.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Witness Printer took 9.61 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 59]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 25, overapproximation of bitwiseAnd at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 58, overapproximation of to_real at line 55. Possible FailurePath: [L50] double x = __VERIFIER_nondet_double(); [L53] CALL, EXPR isinf_double(x) VAL [\old(x)=10737418246] [L17] __int32_t hx, lx; VAL [\old(x)=10737418246, x=10737418246] [L19] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=10737418246, ew_u={10737418242:0}, x=10737418246] [L20] FCALL ew_u.value = (x) VAL [\old(x)=10737418246, ew_u={10737418242:0}, x=10737418246] [L21] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=10737418246, ew_u={10737418242:0}, ew_u.parts.msw=6442450944, x=10737418246] [L21] (hx) = ew_u.parts.msw VAL [\old(x)=10737418246, ew_u={10737418242:0}, ew_u.parts.msw=6442450944, hx=-2147483648, x=10737418246] [L21] FCALL (hx) = ew_u.parts.msw VAL [(hx) = ew_u.parts.msw=10737418243, \old(x)=10737418246, ew_u={10737418242:0}, ew_u.parts.msw=6442450944, hx=-2147483648, x=10737418246] [L22] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=10737418246, ew_u={10737418242:0}, ew_u.parts.lsw=10737418240, hx=-2147483648, x=10737418246] [L22] (lx) = ew_u.parts.lsw VAL [\old(x)=10737418246, ew_u={10737418242:0}, ew_u.parts.lsw=10737418240, hx=-2147483648, lx=-2147483648, x=10737418246] [L22] FCALL (lx) = ew_u.parts.lsw VAL [(lx) = ew_u.parts.lsw=10737418247, \old(x)=10737418246, ew_u={10737418242:0}, ew_u.parts.lsw=10737418240, hx=-2147483648, lx=-2147483648, x=10737418246] [L23] COND FALSE !(0) VAL [\old(x)=10737418246, hx=-2147483648, lx=-2147483648, x=10737418246] [L24] hx &= 0x7fffffff [L25] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L26] hx = 0x7ff00000 - hx [L27] RET return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418246, \result=0, hx=2146435072, lx=-2147483648, x=10737418246] [L53] EXPR isinf_double(x) VAL [isinf_double(x)=0, x=10737418246] [L53] !isinf_double(x) && !isnan_double(x) VAL [!isinf_double(x) && !isnan_double(x)=1, isinf_double(x)=0, x=10737418246] [L53] COND TRUE !isinf_double(x) && !isnan_double(x) VAL [!isinf_double(x) && !isnan_double(x)=1, isinf_double(x)=0, x=10737418246] [L53] CALL, EXPR isnan_double(x) VAL [\old(x)=10737418246] [L31] RET return x != x; VAL [\old(x)=10737418246, \result=0, x=10737418246] [L53] EXPR isnan_double(x) VAL [!isinf_double(x) && !isnan_double(x)=1, isinf_double(x)=0, isnan_double(x)=0, x=10737418246] [L53] !isinf_double(x) && !isnan_double(x) VAL [!isinf_double(x) && !isnan_double(x)=1, isinf_double(x)=0, isnan_double(x)=0, x=10737418246] [L53] COND TRUE !isinf_double(x) && !isnan_double(x) [L55] CALL, EXPR isfinite_double(x) VAL [\old(x)=10737418246] [L34] __int32_t hx; VAL [\old(x)=10737418246, x=10737418246] [L36] FCALL ieee_double_shape_type gh_u; VAL [\old(x)=10737418246, gh_u={10737418245:0}, x=10737418246] [L37] FCALL gh_u.value = (x) VAL [\old(x)=10737418246, gh_u={10737418245:0}, x=10737418246] [L38] EXPR, FCALL gh_u.parts.msw VAL [\old(x)=10737418246, gh_u={10737418245:0}, gh_u.parts.msw=6442450943, x=10737418246] [L38] (hx) = gh_u.parts.msw VAL [\old(x)=10737418246, gh_u={10737418245:0}, gh_u.parts.msw=6442450943, hx=2147483647, x=10737418246] [L38] FCALL (hx) = gh_u.parts.msw VAL [(hx) = gh_u.parts.msw=10737418244, \old(x)=10737418246, gh_u={10737418245:0}, gh_u.parts.msw=6442450943, hx=2147483647, x=10737418246] [L39] COND FALSE !(0) VAL [\old(x)=10737418246, hx=2147483647, x=10737418246] [L40] RET return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=10737418246, \result=-1, hx=2147483647, x=10737418246] [L55] EXPR isfinite_double(x) VAL [isfinite_double(x)=-1, x=10737418246] [L55] double res = isfinite_double(x); [L58] COND TRUE res == 0.0 VAL [x=10737418246] [L59] __VERIFIER_error() VAL [x=10737418246] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 57 locations, 1 error locations. UNSAFE Result, 0.9s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 110 SDtfs, 0 SDslu, 47 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 2599 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 0.1.23-40ef509 [2018-09-20 15:07:34,286 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:07:34,289 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:07:34,307 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-09-20 15:07:34,323 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:07:34,324 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:07:34,325 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:07:34,326 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:07:34,327 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:07:34,327 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:07:34,329 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:07:34,331 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:07:34,333 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:07:34,334 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:07:34,335 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:07:34,337 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:07:34,338 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:07:34,338 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:07:34,339 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:07:34,340 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:07:34,341 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:07:34,341 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:07:34,342 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:07:34,343 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:07:34,343 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:07:34,344 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:07:34,344 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:07:34,345 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:07:34,345 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:07:34,346 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:07:34,368 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:07:34,370 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:07:34,371 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:07:34,372 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:07:34,372 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:07:34,372 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:07:34,373 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:07:34,373 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:07:34,373 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:07:34,373 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:07:34,375 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:07:34,376 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:07:34,376 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:07:34,376 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:07:34,376 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:07:34,376 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:07:34,376 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:07:34,377 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:07:34,377 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:07:34,377 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:07:34,377 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:07:34,377 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:07:34,377 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:07:34,378 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:07:34,378 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:07:34,378 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:07:34,378 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:07:34,382 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:07:34,382 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:07:34,382 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:07:34,383 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:07:34,383 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 -> ee5ae4bbae935ee4fc29ea9e50ac81dc390a543f [2018-09-20 15:07:34,463 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:07:34,487 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:07:34,494 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:07:34,496 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:07:34,496 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:07:34,497 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1300_true-unreach-call.c [2018-09-20 15:07:34,860 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29448419a/a599ac6e1f7b406b9e91d9cf79b0e027/FLAGe5f4f7010 [2018-09-20 15:07:35,022 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:07:35,022 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1300_true-unreach-call.c [2018-09-20 15:07:35,030 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29448419a/a599ac6e1f7b406b9e91d9cf79b0e027/FLAGe5f4f7010 [2018-09-20 15:07:35,047 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29448419a/a599ac6e1f7b406b9e91d9cf79b0e027 [2018-09-20 15:07:35,052 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:07:35,055 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:07:35,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:07:35,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:07:35,064 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:07:35,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:07:35" (1/1) ... [2018-09-20 15:07:35,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a134780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:35, skipping insertion in model container [2018-09-20 15:07:35,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:07:35" (1/1) ... [2018-09-20 15:07:35,082 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:07:35,330 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:07:35,353 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:07:35,386 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:07:35,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:35 WrapperNode [2018-09-20 15:07:35,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:07:35,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:07:35,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:07:35,445 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:07:35,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:35" (1/1) ... [2018-09-20 15:07:35,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:35" (1/1) ... [2018-09-20 15:07:35,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:35" (1/1) ... [2018-09-20 15:07:35,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:35" (1/1) ... [2018-09-20 15:07:35,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:35" (1/1) ... [2018-09-20 15:07:35,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:35" (1/1) ... [2018-09-20 15:07:35,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:35" (1/1) ... [2018-09-20 15:07:35,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:07:35,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:07:35,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:07:35,517 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:07:35,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:35" (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 [2018-09-20 15:07:35,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:07:35,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:07:35,666 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-20 15:07:35,666 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:07:35,666 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2018-09-20 15:07:35,666 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:07:35,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:07:35,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-20 15:07:35,667 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-20 15:07:35,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:07:35,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-20 15:07:35,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:07:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:07:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:07:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2018-09-20 15:07:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:07:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:07:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:07:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:07:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:07:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-20 15:07:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-20 15:07:35,891 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:07:35,941 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:07:36,069 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:07:36,098 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:07:36,122 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:07:36,299 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:07:36,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:07:36 BoogieIcfgContainer [2018-09-20 15:07:36,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:07:36,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:07:36,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:07:36,304 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:07:36,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:07:35" (1/3) ... [2018-09-20 15:07:36,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae0a69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:07:36, skipping insertion in model container [2018-09-20 15:07:36,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:07:35" (2/3) ... [2018-09-20 15:07:36,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae0a69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:07:36, skipping insertion in model container [2018-09-20 15:07:36,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:07:36" (3/3) ... [2018-09-20 15:07:36,308 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1300_true-unreach-call.c [2018-09-20 15:07:36,317 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:07:36,325 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:07:36,372 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:07:36,373 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:07:36,373 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:07:36,373 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:07:36,373 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:07:36,373 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:07:36,374 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:07:36,374 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:07:36,374 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:07:36,395 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2018-09-20 15:07:36,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-20 15:07:36,403 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:07:36,405 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] [2018-09-20 15:07:36,407 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:07:36,413 INFO L82 PathProgramCache]: Analyzing trace with hash -345042561, now seen corresponding path program 1 times [2018-09-20 15:07:36,418 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:07:36,419 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 [2018-09-20 15:07:36,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:07:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:07:36,504 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:07:36,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:07:36,525 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:07:36,539 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:07:36,539 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:07:36,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:07:36,560 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:07:36,561 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:07:36,564 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 2 states. [2018-09-20 15:07:36,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:07:36,590 INFO L93 Difference]: Finished difference Result 106 states and 119 transitions. [2018-09-20 15:07:36,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:07:36,592 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-09-20 15:07:36,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:07:36,602 INFO L225 Difference]: With dead ends: 106 [2018-09-20 15:07:36,603 INFO L226 Difference]: Without dead ends: 52 [2018-09-20 15:07:36,607 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:07:36,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-09-20 15:07:36,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-09-20 15:07:36,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-09-20 15:07:36,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-09-20 15:07:36,649 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 24 [2018-09-20 15:07:36,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:07:36,650 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-09-20 15:07:36,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:07:36,650 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-09-20 15:07:36,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-20 15:07:36,652 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:07:36,652 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] [2018-09-20 15:07:36,653 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:07:36,653 INFO L82 PathProgramCache]: Analyzing trace with hash 701954569, now seen corresponding path program 1 times [2018-09-20 15:07:36,654 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:07:36,654 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 [2018-09-20 15:07:36,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:07:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:07:36,789 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:07:36,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:07:36,857 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:07:36,871 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:07:36,871 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-20 15:07:36,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-20 15:07:36,875 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-20 15:07:36,875 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 15:07:36,875 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 3 states. [2018-09-20 15:07:36,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:07:36,925 INFO L93 Difference]: Finished difference Result 72 states and 71 transitions. [2018-09-20 15:07:36,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-20 15:07:36,926 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2018-09-20 15:07:36,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:07:36,928 INFO L225 Difference]: With dead ends: 72 [2018-09-20 15:07:36,928 INFO L226 Difference]: Without dead ends: 52 [2018-09-20 15:07:36,929 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 15:07:36,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-09-20 15:07:36,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-09-20 15:07:36,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-09-20 15:07:36,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 51 transitions. [2018-09-20 15:07:36,939 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 51 transitions. Word has length 46 [2018-09-20 15:07:36,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:07:36,939 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 51 transitions. [2018-09-20 15:07:36,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-20 15:07:36,940 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 51 transitions. [2018-09-20 15:07:36,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-20 15:07:36,942 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:07:36,942 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] [2018-09-20 15:07:36,942 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:07:36,943 INFO L82 PathProgramCache]: Analyzing trace with hash -766864652, now seen corresponding path program 1 times [2018-09-20 15:07:36,943 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:07:36,943 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 [2018-09-20 15:07:36,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:07:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:07:37,113 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:07:37,231 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:07:37,251 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:07:37,258 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 27 treesize of output 35 [2018-09-20 15:07:37,309 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:07:37,409 INFO L303 Elim1Store]: Index analysis took 145 ms [2018-09-20 15:07:37,411 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-20 15:07:37,413 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:07:37,523 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:07:37,550 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:07:37,551 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-20 15:07:38,063 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:07:38,079 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:07:38,081 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 54 treesize of output 56 [2018-09-20 15:07:38,107 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:07:38,125 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-09-20 15:07:38,126 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:07:38,234 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:07:38,317 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 15:07:38,317 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-20 15:07:38,498 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 35 treesize of output 27 [2018-09-20 15:07:38,518 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:07:38,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-09-20 15:07:38,525 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:07:38,538 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:07:38,652 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. [2018-09-20 15:07:38,652 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-20 15:07:39,504 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-09-20 15:07:40,116 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-20 15:07:40,612 WARN L178 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2018-09-20 15:07:41,209 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 14 treesize of output 11 [2018-09-20 15:07:41,217 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 11 treesize of output 10 [2018-09-20 15:07:41,217 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:07:41,224 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:07:41,243 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:07:41,243 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:07:41,458 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 20 treesize of output 16 [2018-09-20 15:07:41,464 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 16 treesize of output 4 [2018-09-20 15:07:41,464 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:07:41,470 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:07:41,484 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. [2018-09-20 15:07:41,485 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:08:27,441 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-20 15:08:27,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:08:27,580 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:08:27,596 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:08:27,596 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2018-09-20 15:08:27,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-09-20 15:08:27,597 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-09-20 15:08:27,601 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=438, Unknown=20, NotChecked=0, Total=506 [2018-09-20 15:08:27,603 INFO L87 Difference]: Start difference. First operand 52 states and 51 transitions. Second operand 23 states. [2018-09-20 15:08:55,985 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:130) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:254) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:690) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:603) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:472) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:313) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Stream closed at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433) at java.io.OutputStream.write(OutputStream.java:116) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 28 more [2018-09-20 15:08:55,991 INFO L168 Benchmark]: Toolchain (without parser) took 80938.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 951.9 MB in the beginning and 885.8 MB in the end (delta: 66.1 MB). Peak memory consumption was 211.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:08:55,994 INFO L168 Benchmark]: CDTParser took 0.52 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. [2018-09-20 15:08:55,994 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.75 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:08:55,995 INFO L168 Benchmark]: Boogie Preprocessor took 69.68 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:08:55,996 INFO L168 Benchmark]: RCFGBuilder took 784.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -172.4 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:08:55,997 INFO L168 Benchmark]: TraceAbstraction took 79689.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 885.8 MB in the end (delta: 222.4 MB). Peak memory consumption was 222.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:08:56,003 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 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 387.75 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.68 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 784.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -172.4 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 79689.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 885.8 MB in the end (delta: 222.4 MB). Peak memory consumption was 222.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...