/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122b_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/double_req_bl_1122b_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 c6a2c9a76eae0e8993608269b8bc800503d7af17 --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/double_req_bl_1122b_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 c6a2c9a76eae0e8993608269b8bc800503d7af17 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ........................................................................................................................................................................................................................................................................................................... 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 0.1.23-5eb3fea [2018-09-21 18:11:42,326 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:11:42,328 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:11:42,345 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:11:42,345 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:11:42,346 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:11:42,348 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:11:42,352 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:11:42,353 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:11:42,356 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:11:42,357 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:11:42,357 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:11:42,358 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:11:42,359 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:11:42,360 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:11:42,361 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:11:42,362 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:11:42,364 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:11:42,366 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:11:42,368 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:11:42,369 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:11:42,370 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:11:42,373 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:11:42,373 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:11:42,373 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:11:42,374 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:11:42,375 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:11:42,376 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:11:42,377 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:11:42,378 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:11:42,378 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:11:42,379 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:11:42,379 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:11:42,380 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:11:42,381 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:11:42,381 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:11:42,382 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:11:42,398 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:11:42,398 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:11:42,399 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:11:42,399 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:11:42,400 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:11:42,400 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:11:42,400 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:11:42,400 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:11:42,400 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:11:42,400 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:11:42,401 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:11:42,401 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:11:42,401 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:11:42,401 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:11:42,401 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:11:42,401 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:11:42,402 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:11:42,402 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:11:42,402 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:11:42,402 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:11:42,402 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:11:42,403 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:11:42,403 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:11:42,403 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:11:42,403 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:11:42,403 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:11:42,403 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:11:42,404 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:11:42,404 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:11:42,404 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 -> c6a2c9a76eae0e8993608269b8bc800503d7af17 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 18:11:42,456 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:11:42,472 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:11:42,476 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:11:42,478 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:11:42,479 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:11:42,480 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122b_true-unreach-call.c [2018-09-21 18:11:42,842 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a97b2ffe5/df3cdef3092c4afcb32b40b95b7a4cca/FLAG5d0476649 [2018-09-21 18:11:43,070 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:11:43,072 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1122b_true-unreach-call.c [2018-09-21 18:11:43,083 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a97b2ffe5/df3cdef3092c4afcb32b40b95b7a4cca/FLAG5d0476649 [2018-09-21 18:11:43,102 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a97b2ffe5/df3cdef3092c4afcb32b40b95b7a4cca [2018-09-21 18:11:43,106 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:11:43,109 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:11:43,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:11:43,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:11:43,117 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:11:43,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:11:43" (1/1) ... [2018-09-21 18:11:43,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@753460d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:43, skipping insertion in model container [2018-09-21 18:11:43,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:11:43" (1/1) ... [2018-09-21 18:11:43,134 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:11:43,384 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:11:43,402 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:11:43,457 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:11:43,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:43 WrapperNode [2018-09-21 18:11:43,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:11:43,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:11:43,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:11:43,502 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:11:43,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:43" (1/1) ... [2018-09-21 18:11:43,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:43" (1/1) ... [2018-09-21 18:11:43,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:43" (1/1) ... [2018-09-21 18:11:43,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:43" (1/1) ... [2018-09-21 18:11:43,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:43" (1/1) ... [2018-09-21 18:11:43,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:43" (1/1) ... [2018-09-21 18:11:43,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:43" (1/1) ... [2018-09-21 18:11:43,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:11:43,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:11:43,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:11:43,590 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:11:43,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:43" (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 18:11:43,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:11:43,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:11:43,739 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:11:43,740 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2018-09-21 18:11:43,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:11:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:11:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 18:11:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:11:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2018-09-21 18:11:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:11:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:11:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:11:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:11:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:11:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:11:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:11:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:11:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:11:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:11:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:11:44,813 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:11:44,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:44 BoogieIcfgContainer [2018-09-21 18:11:44,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:11:44,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:11:44,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:11:44,820 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:11:44,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:11:43" (1/3) ... [2018-09-21 18:11:44,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b67fe1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:11:44, skipping insertion in model container [2018-09-21 18:11:44,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:43" (2/3) ... [2018-09-21 18:11:44,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b67fe1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:11:44, skipping insertion in model container [2018-09-21 18:11:44,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:44" (3/3) ... [2018-09-21 18:11:44,826 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122b_true-unreach-call.c [2018-09-21 18:11:44,837 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:11:44,847 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:11:44,893 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:11:44,894 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:11:44,895 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:11:44,895 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:11:44,895 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:11:44,895 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:11:44,896 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:11:44,896 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:11:44,896 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:11:44,919 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2018-09-21 18:11:44,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-21 18:11:44,932 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:44,934 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:11:44,937 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:44,943 INFO L82 PathProgramCache]: Analyzing trace with hash -954661604, now seen corresponding path program 1 times [2018-09-21 18:11:44,946 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:11:44,946 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:11:44,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:11:44,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:44,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:11:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:45,105 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 18:11:45,108 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:45,108 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:11:45,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:11:45,126 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:11:45,127 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:11:45,130 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 2 states. [2018-09-21 18:11:45,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:45,159 INFO L93 Difference]: Finished difference Result 118 states and 144 transitions. [2018-09-21 18:11:45,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:11:45,161 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-21 18:11:45,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:45,175 INFO L225 Difference]: With dead ends: 118 [2018-09-21 18:11:45,176 INFO L226 Difference]: Without dead ends: 114 [2018-09-21 18:11:45,178 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 18:11:45,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-09-21 18:11:45,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-09-21 18:11:45,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-09-21 18:11:45,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2018-09-21 18:11:45,232 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 22 [2018-09-21 18:11:45,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:45,232 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2018-09-21 18:11:45,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:11:45,233 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2018-09-21 18:11:45,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-21 18:11:45,235 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:45,235 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] [2018-09-21 18:11:45,236 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:45,236 INFO L82 PathProgramCache]: Analyzing trace with hash -685275304, now seen corresponding path program 1 times [2018-09-21 18:11:45,236 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:11:45,237 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:11:45,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:11:45,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:45,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:11:45,304 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:91) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createCCEquality(EqualityProxy.java:112) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.mbtc(LinArSolve.java:2063) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.computeConflictClause(LinArSolve.java:618) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.checkConsistency(DPLLEngine.java:1027) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1171) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:114) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:502) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:455) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:430) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) 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) [2018-09-21 18:11:45,309 INFO L168 Benchmark]: Toolchain (without parser) took 2202.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -109.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:45,311 INFO L168 Benchmark]: CDTParser took 0.45 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 18:11:45,311 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.65 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:45,312 INFO L168 Benchmark]: Boogie Preprocessor took 87.19 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:11:45,313 INFO L168 Benchmark]: RCFGBuilder took 1224.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -146.3 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:45,314 INFO L168 Benchmark]: TraceAbstraction took 492.28 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: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:45,319 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 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 390.65 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 87.19 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1224.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -146.3 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 492.28 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: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:91) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:11:47,749 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:11:47,751 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:11:47,765 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:11:47,765 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:11:47,767 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:11:47,768 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:11:47,774 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:11:47,776 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:11:47,777 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:11:47,780 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:11:47,780 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:11:47,781 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:11:47,783 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:11:47,784 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:11:47,785 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:11:47,786 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:11:47,788 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:11:47,790 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:11:47,792 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:11:47,793 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:11:47,795 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:11:47,798 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:11:47,799 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:11:47,800 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:11:47,801 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:11:47,805 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:11:47,806 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:11:47,810 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:11:47,811 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:11:47,811 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:11:47,812 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:11:47,812 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:11:47,814 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:11:47,816 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:11:47,818 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:11:47,818 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:11:47,846 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:11:47,848 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:11:47,849 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:11:47,850 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:11:47,850 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:11:47,851 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:11:47,851 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:11:47,851 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:11:47,851 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:11:47,851 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:11:47,855 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:11:47,855 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:11:47,855 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:11:47,855 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:11:47,856 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:11:47,856 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:11:47,856 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:11:47,856 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:11:47,856 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:11:47,858 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:11:47,858 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:11:47,858 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:11:47,858 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:11:47,858 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:11:47,859 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:11:47,859 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:11:47,859 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:11:47,859 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:11:47,859 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:11:47,859 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:11:47,860 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:11:47,860 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 -> c6a2c9a76eae0e8993608269b8bc800503d7af17 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 18:11:47,935 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:11:47,948 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:11:47,951 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:11:47,953 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:11:47,953 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:11:47,954 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122b_true-unreach-call.c [2018-09-21 18:11:48,315 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd2cd0e8c/b4a08a52f4814a07aa8d02d76ea267a5/FLAG9f7c546b2 [2018-09-21 18:11:48,461 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:11:48,461 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1122b_true-unreach-call.c [2018-09-21 18:11:48,470 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd2cd0e8c/b4a08a52f4814a07aa8d02d76ea267a5/FLAG9f7c546b2 [2018-09-21 18:11:48,487 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd2cd0e8c/b4a08a52f4814a07aa8d02d76ea267a5 [2018-09-21 18:11:48,492 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:11:48,495 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:11:48,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:11:48,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:11:48,504 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:11:48,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:11:48" (1/1) ... [2018-09-21 18:11:48,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b9aa049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:48, skipping insertion in model container [2018-09-21 18:11:48,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:11:48" (1/1) ... [2018-09-21 18:11:48,523 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:11:48,855 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:11:48,883 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:11:48,938 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:11:48,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:48 WrapperNode [2018-09-21 18:11:48,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:11:48,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:11:48,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:11:48,988 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:11:49,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:48" (1/1) ... [2018-09-21 18:11:49,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:48" (1/1) ... [2018-09-21 18:11:49,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:48" (1/1) ... [2018-09-21 18:11:49,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:48" (1/1) ... [2018-09-21 18:11:49,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:48" (1/1) ... [2018-09-21 18:11:49,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:48" (1/1) ... [2018-09-21 18:11:49,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:48" (1/1) ... [2018-09-21 18:11:49,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:11:49,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:11:49,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:11:49,076 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:11:49,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:48" (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 18:11:49,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:11:49,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:11:49,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:11:49,256 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2018-09-21 18:11:49,257 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:11:49,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:11:49,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 18:11:49,257 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:11:49,257 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2018-09-21 18:11:49,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:11:49,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 18:11:49,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:11:49,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:11:49,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:11:49,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 18:11:49,262 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:11:49,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:11:49,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:11:49,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 18:11:49,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:11:49,693 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:49,718 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:49,782 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:49,862 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:49,881 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:50,483 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:53,507 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:11:53,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:53 BoogieIcfgContainer [2018-09-21 18:11:53,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:11:53,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:11:53,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:11:53,512 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:11:53,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:11:48" (1/3) ... [2018-09-21 18:11:53,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2452e323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:11:53, skipping insertion in model container [2018-09-21 18:11:53,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:48" (2/3) ... [2018-09-21 18:11:53,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2452e323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:11:53, skipping insertion in model container [2018-09-21 18:11:53,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:53" (3/3) ... [2018-09-21 18:11:53,517 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122b_true-unreach-call.c [2018-09-21 18:11:53,529 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:11:53,539 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:11:53,597 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:11:53,598 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:11:53,598 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:11:53,599 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:11:53,599 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:11:53,599 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:11:53,599 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:11:53,599 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:11:53,599 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:11:53,624 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2018-09-21 18:11:53,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-21 18:11:53,646 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:53,647 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:11:53,650 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:53,657 INFO L82 PathProgramCache]: Analyzing trace with hash -370038965, now seen corresponding path program 1 times [2018-09-21 18:11:53,662 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:53,663 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 18:11:53,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:54,758 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:11:54,777 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 18:11:54,777 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:54,803 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:54,803 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:11:54,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:11:54,822 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:11:54,823 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:11:54,825 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 2 states. [2018-09-21 18:11:54,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:54,854 INFO L93 Difference]: Finished difference Result 117 states and 143 transitions. [2018-09-21 18:11:54,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:11:54,856 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-21 18:11:54,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:54,873 INFO L225 Difference]: With dead ends: 117 [2018-09-21 18:11:54,874 INFO L226 Difference]: Without dead ends: 113 [2018-09-21 18:11:54,876 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:11:54,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-09-21 18:11:54,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2018-09-21 18:11:54,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-09-21 18:11:54,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 139 transitions. [2018-09-21 18:11:54,930 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 139 transitions. Word has length 21 [2018-09-21 18:11:54,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:54,931 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 139 transitions. [2018-09-21 18:11:54,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:11:54,931 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 139 transitions. [2018-09-21 18:11:54,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-21 18:11:54,934 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:54,934 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] [2018-09-21 18:11:54,935 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:54,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1914081903, now seen corresponding path program 1 times [2018-09-21 18:11:54,936 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:54,937 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 18:11:54,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:55,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:56,028 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:11:58,563 WARN L797 $PredicateComparison]: unable to prove that (exists ((fmod_double_~y (_ FloatingPoint 11 53))) (= (let ((.cse0 (fp.mul RNE |c_fmod_double_#in~x| fmod_double_~y))) (fp.div RNE .cse0 .cse0)) |c_fmod_double_#res|)) is different from false [2018-09-21 18:12:11,314 WARN L178 SmtUtils]: Spent 2.22 s on a formula simplification that was a NOOP. DAG size: 12 [2018-09-21 18:12:28,462 WARN L178 SmtUtils]: Spent 4.75 s on a formula simplification that was a NOOP. DAG size: 12 [2018-09-21 18:12:46,278 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 18:12:46,278 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:12:46,308 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:12:46,309 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:12:46,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:12:46,311 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:12:46,311 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=39, Unknown=6, NotChecked=12, Total=72 [2018-09-21 18:12:46,311 INFO L87 Difference]: Start difference. First operand 113 states and 139 transitions. Second operand 9 states. [2018-09-21 18:14:37,406 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: Broken pipe at java.io.FileOutputStream.writeBytes(Native Method) at java.io.FileOutputStream.write(FileOutputStream.java:326) 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 [2018-09-21 18:14:37,413 INFO L168 Benchmark]: Toolchain (without parser) took 168920.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 953.2 MB in the beginning and 1.0 GB in the end (delta: -48.4 MB). Peak memory consumption was 73.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:14:37,414 INFO L168 Benchmark]: CDTParser took 0.15 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 18:14:37,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.19 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 18:14:37,416 INFO L168 Benchmark]: Boogie Preprocessor took 87.77 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 18:14:37,417 INFO L168 Benchmark]: RCFGBuilder took 4432.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -142.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:14:37,418 INFO L168 Benchmark]: TraceAbstraction took 163904.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.6 MB). Peak memory consumption was 72.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:14:37,424 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 490.19 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 87.77 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 4432.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -142.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 163904.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.6 MB). Peak memory consumption was 72.6 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...