./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2880296f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_1122a.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a0740a185a491545b0a653a1a7a9df9d4659bae ................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_1122a.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a0740a185a491545b0a653a1a7a9df9d4659bae ................................................................................................................................................................................................................................................................................................................................................................................................................... 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)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 15:33:32,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:33:32,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:33:32,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:33:32,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:33:32,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:33:32,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:33:32,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:33:32,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:33:32,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:33:32,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:33:32,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:33:32,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:33:32,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:33:32,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:33:32,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:33:32,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:33:32,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:33:32,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:33:32,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:33:32,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:33:32,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:33:32,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:33:32,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:33:32,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:33:32,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:33:32,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:33:32,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:33:32,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:33:32,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:33:32,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:33:32,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:33:32,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:33:32,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:33:32,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:33:32,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:33:32,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:33:32,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:33:32,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:33:32,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:33:32,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:33:32,533 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 15:33:32,588 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:33:32,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:33:32,593 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:33:32,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:33:32,595 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:33:32,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:33:32,595 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:33:32,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 15:33:32,596 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:33:32,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:33:32,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:33:32,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:33:32,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:33:32,598 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:33:32,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:33:32,599 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:33:32,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:33:32,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:33:32,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:33:32,600 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:33:32,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:33:32,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:33:32,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:33:32,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:33:32,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:33:32,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 15:33:32,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 15:33:32,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:33:32,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:33:32,602 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a0740a185a491545b0a653a1a7a9df9d4659bae [2020-12-02 15:33:33,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:33:33,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:33:33,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:33:33,105 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:33:33,106 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:33:33,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122a.c [2020-12-02 15:33:33,214 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dc6b5e1a/13bafcb83eca4b1fa6b674b9642db87e/FLAGb109e9b16 [2020-12-02 15:33:33,992 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:33:33,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1122a.c [2020-12-02 15:33:34,005 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dc6b5e1a/13bafcb83eca4b1fa6b674b9642db87e/FLAGb109e9b16 [2020-12-02 15:33:34,029 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dc6b5e1a/13bafcb83eca4b1fa6b674b9642db87e [2020-12-02 15:33:34,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:33:34,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:33:34,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:33:34,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:33:34,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:33:34,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:33:34" (1/1) ... [2020-12-02 15:33:34,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@635fb6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:34, skipping insertion in model container [2020-12-02 15:33:34,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:33:34" (1/1) ... [2020-12-02 15:33:34,060 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:33:34,109 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:33:34,398 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1122a.c[3905,3918] [2020-12-02 15:33:34,409 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:33:34,424 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:33:34,536 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1122a.c[3905,3918] [2020-12-02 15:33:34,538 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:33:34,560 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:33:34,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:34 WrapperNode [2020-12-02 15:33:34,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:33:34,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:33:34,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:33:34,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:33:34,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:34" (1/1) ... [2020-12-02 15:33:34,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:34" (1/1) ... [2020-12-02 15:33:34,626 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:33:34,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:33:34,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:33:34,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:33:34,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:34" (1/1) ... [2020-12-02 15:33:34,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:34" (1/1) ... [2020-12-02 15:33:34,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:34" (1/1) ... [2020-12-02 15:33:34,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:34" (1/1) ... [2020-12-02 15:33:34,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:34" (1/1) ... [2020-12-02 15:33:34,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:34" (1/1) ... [2020-12-02 15:33:34,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:34" (1/1) ... [2020-12-02 15:33:34,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:33:34,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:33:34,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:33:34,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:33:34,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:34" (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 [2020-12-02 15:33:34,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 15:33:34,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:33:34,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 15:33:34,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-02 15:33:34,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-02 15:33:34,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:33:34,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:33:34,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-02 15:33:34,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-02 15:33:34,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:33:35,547 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:33:35,547 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-02 15:33:35,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:35 BoogieIcfgContainer [2020-12-02 15:33:35,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:33:35,554 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:33:35,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:33:35,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:33:35,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:33:34" (1/3) ... [2020-12-02 15:33:35,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d0983c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:33:35, skipping insertion in model container [2020-12-02 15:33:35,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:34" (2/3) ... [2020-12-02 15:33:35,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d0983c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:33:35, skipping insertion in model container [2020-12-02 15:33:35,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:35" (3/3) ... [2020-12-02 15:33:35,564 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a.c [2020-12-02 15:33:35,583 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:33:35,592 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:33:35,607 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:33:35,654 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:33:35,655 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:33:35,655 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:33:35,655 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:33:35,655 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:33:35,656 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:33:35,656 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:33:35,656 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:33:35,678 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-12-02 15:33:35,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 15:33:35,686 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:33:35,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:33:35,688 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:33:35,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:33:35,696 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-12-02 15:33:35,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 15:33:35,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570453163] [2020-12-02 15:33:35,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 15:33:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:33:35,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:33:35,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570453163] [2020-12-02 15:33:35,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:33:35,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 15:33:35,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175868721] [2020-12-02 15:33:35,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:33:35,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 15:33:35,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:33:35,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:33:35,933 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2020-12-02 15:33:35,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:33:35,960 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2020-12-02 15:33:35,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:33:35,961 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-02 15:33:35,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:33:35,977 INFO L225 Difference]: With dead ends: 108 [2020-12-02 15:33:35,977 INFO L226 Difference]: Without dead ends: 52 [2020-12-02 15:33:35,981 INFO L677 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 [2020-12-02 15:33:36,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-02 15:33:36,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-02 15:33:36,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-02 15:33:36,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-12-02 15:33:36,025 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-12-02 15:33:36,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:33:36,026 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-12-02 15:33:36,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:33:36,027 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-12-02 15:33:36,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 15:33:36,027 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:33:36,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:33:36,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 15:33:36,028 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:33:36,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:33:36,029 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-12-02 15:33:36,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 15:33:36,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575040675] [2020-12-02 15:33:36,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 15:33:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:33:36,144 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:33:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:33:36,231 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:33:36,264 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 15:33:36,264 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 15:33:36,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 15:33:36,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:33:36 BoogieIcfgContainer [2020-12-02 15:33:36,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 15:33:36,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 15:33:36,304 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 15:33:36,304 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 15:33:36,305 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:35" (3/4) ... [2020-12-02 15:33:36,308 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 15:33:36,309 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 15:33:36,311 INFO L168 Benchmark]: Toolchain (without parser) took 2274.15 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.7 MB in the beginning and 44.1 MB in the end (delta: -8.3 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-12-02 15:33:36,312 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 37.7 MB. Free memory was 17.9 MB in the beginning and 17.9 MB in the end (delta: 26.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:33:36,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 520.65 ms. Allocated memory is still 58.7 MB. Free memory was 35.5 MB in the beginning and 38.7 MB in the end (delta: -3.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-02 15:33:36,315 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.77 ms. Allocated memory is still 58.7 MB. Free memory was 38.7 MB in the beginning and 36.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:33:36,316 INFO L168 Benchmark]: Boogie Preprocessor took 47.84 ms. Allocated memory is still 58.7 MB. Free memory was 36.3 MB in the beginning and 34.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:33:36,320 INFO L168 Benchmark]: RCFGBuilder took 874.49 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 34.1 MB in the beginning and 49.2 MB in the end (delta: -15.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-12-02 15:33:36,321 INFO L168 Benchmark]: TraceAbstraction took 749.12 ms. Allocated memory is still 71.3 MB. Free memory was 48.8 MB in the beginning and 44.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-12-02 15:33:36,322 INFO L168 Benchmark]: Witness Printer took 5.04 ms. Allocated memory is still 71.3 MB. Free memory is still 44.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:33:36,330 INFO L339 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 37.7 MB. Free memory was 17.9 MB in the beginning and 17.9 MB in the end (delta: 26.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 520.65 ms. Allocated memory is still 58.7 MB. Free memory was 35.5 MB in the beginning and 38.7 MB in the end (delta: -3.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.77 ms. Allocated memory is still 58.7 MB. Free memory was 38.7 MB in the beginning and 36.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.84 ms. Allocated memory is still 58.7 MB. Free memory was 36.3 MB in the beginning and 34.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 874.49 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 34.1 MB in the beginning and 49.2 MB in the end (delta: -15.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 749.12 ms. Allocated memory is still 71.3 MB. Free memory was 48.8 MB in the beginning and 44.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.04 ms. Allocated memory is still 71.3 MB. Free memory is still 44.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 178]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLE_SMToperation at line 22, overapproximation of bitwiseOr at line 46, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLE_SMToperation at line 47, overapproximation of someBinaryDOUBLE_SMTComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={9:0}] [L172] double x = 1.0 / 0.0; [L173] double y = __VERIFIER_nondet_double(); [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={9:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L174] double res = fmod_double(x, y); [L18] return x != x; VAL [one_fmod=1, Zero_fmod={9:0}] [L177] COND TRUE !isnan_double(res) [L178] reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 81 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: 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 0.2.0-2880296 [2020-12-02 15:33:39,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:33:39,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:33:39,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:33:39,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:33:39,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:33:39,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:33:39,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:33:39,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:33:39,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:33:39,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:33:39,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:33:39,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:33:39,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:33:39,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:33:39,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:33:39,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:33:39,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:33:39,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:33:39,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:33:39,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:33:39,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:33:39,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:33:39,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:33:39,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:33:39,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:33:39,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:33:39,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:33:39,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:33:39,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:33:39,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:33:39,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:33:39,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:33:39,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:33:39,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:33:39,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:33:39,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:33:39,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:33:39,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:33:39,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:33:39,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:33:39,159 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 15:33:39,188 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:33:39,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:33:39,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:33:39,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:33:39,190 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:33:39,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:33:39,191 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:33:39,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:33:39,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:33:39,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:33:39,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:33:39,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:33:39,192 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 15:33:39,193 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 15:33:39,193 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:33:39,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:33:39,193 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:33:39,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:33:39,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:33:39,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:33:39,194 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:33:39,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:33:39,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:33:39,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:33:39,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:33:39,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:33:39,196 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 15:33:39,196 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 15:33:39,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:33:39,196 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:33:39,197 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 15:33:39,197 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a0740a185a491545b0a653a1a7a9df9d4659bae [2020-12-02 15:33:39,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:33:39,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:33:39,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:33:39,725 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:33:39,726 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:33:39,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122a.c [2020-12-02 15:33:39,810 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/118c8686b/e0b946e5c630460595bd41c54067edd7/FLAG00eb91a64 [2020-12-02 15:33:40,483 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:33:40,486 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1122a.c [2020-12-02 15:33:40,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/118c8686b/e0b946e5c630460595bd41c54067edd7/FLAG00eb91a64 [2020-12-02 15:33:40,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/118c8686b/e0b946e5c630460595bd41c54067edd7 [2020-12-02 15:33:40,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:33:40,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:33:40,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:33:40,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:33:40,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:33:40,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:33:40" (1/1) ... [2020-12-02 15:33:40,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d905f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:40, skipping insertion in model container [2020-12-02 15:33:40,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:33:40" (1/1) ... [2020-12-02 15:33:40,790 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:33:40,836 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:33:41,134 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1122a.c[3905,3918] [2020-12-02 15:33:41,144 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:33:41,176 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:33:41,283 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1122a.c[3905,3918] [2020-12-02 15:33:41,285 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:33:41,342 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:33:41,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:41 WrapperNode [2020-12-02 15:33:41,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:33:41,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:33:41,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:33:41,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:33:41,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:41" (1/1) ... [2020-12-02 15:33:41,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:41" (1/1) ... [2020-12-02 15:33:41,431 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:33:41,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:33:41,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:33:41,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:33:41,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:41" (1/1) ... [2020-12-02 15:33:41,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:41" (1/1) ... [2020-12-02 15:33:41,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:41" (1/1) ... [2020-12-02 15:33:41,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:41" (1/1) ... [2020-12-02 15:33:41,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:41" (1/1) ... [2020-12-02 15:33:41,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:41" (1/1) ... [2020-12-02 15:33:41,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:41" (1/1) ... [2020-12-02 15:33:41,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:33:41,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:33:41,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:33:41,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:33:41,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:33:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 15:33:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-02 15:33:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-02 15:33:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 15:33:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:33:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-12-02 15:33:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 15:33:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:33:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:33:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 15:33:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:33:47,042 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:33:47,043 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-02 15:33:47,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:47 BoogieIcfgContainer [2020-12-02 15:33:47,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:33:47,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:33:47,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:33:47,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:33:47,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:33:40" (1/3) ... [2020-12-02 15:33:47,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ea3426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:33:47, skipping insertion in model container [2020-12-02 15:33:47,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:41" (2/3) ... [2020-12-02 15:33:47,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ea3426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:33:47, skipping insertion in model container [2020-12-02 15:33:47,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:47" (3/3) ... [2020-12-02 15:33:47,063 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a.c [2020-12-02 15:33:47,079 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:33:47,085 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:33:47,099 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:33:47,128 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:33:47,128 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:33:47,128 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:33:47,129 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:33:47,129 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:33:47,129 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:33:47,129 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:33:47,129 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:33:47,144 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-12-02 15:33:47,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 15:33:47,151 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:33:47,151 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:33:47,152 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:33:47,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:33:47,159 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-12-02 15:33:47,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:33:47,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133569768] [2020-12-02 15:33:47,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-12-02 15:33:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:33:49,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 15:33:49,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:33:49,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:33:49,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:33:49,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:33:49,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133569768] [2020-12-02 15:33:49,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:33:49,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 15:33:49,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695391927] [2020-12-02 15:33:49,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:33:49,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:33:49,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:33:49,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:33:49,390 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2020-12-02 15:33:49,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:33:49,414 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2020-12-02 15:33:49,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:33:49,415 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-02 15:33:49,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:33:49,426 INFO L225 Difference]: With dead ends: 108 [2020-12-02 15:33:49,426 INFO L226 Difference]: Without dead ends: 52 [2020-12-02 15:33:49,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:33:49,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-02 15:33:49,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-02 15:33:49,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-02 15:33:49,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-12-02 15:33:49,470 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-12-02 15:33:49,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:33:49,470 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-12-02 15:33:49,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:33:49,471 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-12-02 15:33:49,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 15:33:49,472 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:33:49,472 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:33:49,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 15:33:49,687 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:33:49,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:33:49,689 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-12-02 15:33:49,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:33:49,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1528948570] [2020-12-02 15:33:49,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-12-02 15:33:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:33:51,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-02 15:33:51,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:33:58,677 WARN L197 SmtUtils]: Spent 5.12 s on a formula simplification that was a NOOP. DAG size: 28 [2020-12-02 15:34:01,187 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_fmod_double_#t~nondet20_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_6| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet31_6| (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#t~nondet19_6| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~y (_ BitVec 64))) (let ((.cse4 (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) ULTIMATE.start_fmod_double_~x)))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_6|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_6|))) (.cse5 (fp.mul roundNearestTiesToEven .cse4 (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~y) ((_ extract 62 52) ULTIMATE.start_fmod_double_~y) ((_ extract 51 0) ULTIMATE.start_fmod_double_~y)))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|)))) (and (= (fp ((_ extract 63 63) |c_ULTIMATE.start_fmod_double_#res|) ((_ extract 62 52) |c_ULTIMATE.start_fmod_double_#res|) ((_ extract 51 0) |c_ULTIMATE.start_fmod_double_#res|)) (fp.div roundNearestTiesToEven .cse0 .cse1)) (= (fp.div roundNearestTiesToEven .cse2 .cse3) .cse4) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse2) (= .cse5 .cse1) (= (_ +zero 11 53) .cse3) (= .cse5 .cse0))))) is different from false [2020-12-02 15:34:02,027 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 15:34:02,033 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-02 15:34:09,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:34:09,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:34:18,849 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_fmod_double_#t~nondet20_6| (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#t~nondet19_6| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~y (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#res_10| (_ BitVec 64))) (let ((.cse1 (fp.mul c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) c_ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) c_ULTIMATE.start_fmod_double_~x)) (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~y) ((_ extract 62 52) ULTIMATE.start_fmod_double_~y) ((_ extract 51 0) ULTIMATE.start_fmod_double_~y)))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#res_10|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#res_10|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#res_10|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|)))) (or (not (fp.eq .cse0 .cse0)) (not (= .cse1 .cse2)) (not (= .cse3 .cse1)) (not (= .cse0 (fp.div c_~CRM .cse2 .cse3)))))) is different from true [2020-12-02 15:34:22,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:34:22,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1528948570] [2020-12-02 15:34:22,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:34:22,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-12-02 15:34:22,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979538470] [2020-12-02 15:34:22,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-02 15:34:22,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:34:22,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-02 15:34:22,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=53, Unknown=5, NotChecked=30, Total=110 [2020-12-02 15:34:22,271 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 11 states. [2020-12-02 15:34:25,601 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (forall ((|v_ULTIMATE.start_fmod_double_#t~nondet20_6| (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#t~nondet19_6| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~y (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#res_10| (_ BitVec 64))) (let ((.cse1 (fp.mul c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) c_ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) c_ULTIMATE.start_fmod_double_~x)) (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~y) ((_ extract 62 52) ULTIMATE.start_fmod_double_~y) ((_ extract 51 0) ULTIMATE.start_fmod_double_~y)))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#res_10|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#res_10|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#res_10|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|)))) (or (not (fp.eq .cse0 .cse0)) (not (= .cse1 .cse2)) (not (= .cse3 .cse1)) (not (= .cse0 (fp.div c_~CRM .cse2 .cse3)))))) (exists ((|v_ULTIMATE.start_main_#t~nondet32_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet31_6| (_ BitVec 64))) (let ((.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_6|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_6|)))) (and (= (fp ((_ extract 63 63) c_ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) c_ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) c_ULTIMATE.start_fmod_double_~x)) (fp.div c_~CRM .cse4 .cse5)) (= (_ +zero 11 53) .cse5) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse4))))) is different from false [2020-12-02 15:34:28,766 WARN L860 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (forall ((|v_ULTIMATE.start_fmod_double_#t~nondet20_6| (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#t~nondet19_6| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~y (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#res_10| (_ BitVec 64))) (let ((.cse1 (fp.mul c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) c_ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) c_ULTIMATE.start_fmod_double_~x)) (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~y) ((_ extract 62 52) ULTIMATE.start_fmod_double_~y) ((_ extract 51 0) ULTIMATE.start_fmod_double_~y)))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#res_10|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#res_10|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#res_10|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|)))) (or (not (fp.eq .cse0 .cse0)) (not (= .cse1 .cse2)) (not (= .cse3 .cse1)) (not (= .cse0 (fp.div c_~CRM .cse2 .cse3)))))) (exists ((|v_ULTIMATE.start_main_#t~nondet32_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet31_6| (_ BitVec 64))) (let ((.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_6|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_6|)))) (and (= (fp ((_ extract 63 63) c_ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) c_ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) c_ULTIMATE.start_fmod_double_~x)) (fp.div c_~CRM .cse4 .cse5)) (= (_ +zero 11 53) .cse5) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse4))))) is different from true [2020-12-02 15:34:31,206 WARN L838 $PredicateComparison]: unable to prove that (and (not (let ((.cse0 (fp ((_ extract 63 63) |c_ULTIMATE.start_fmod_double_#res|) ((_ extract 62 52) |c_ULTIMATE.start_fmod_double_#res|) ((_ extract 51 0) |c_ULTIMATE.start_fmod_double_#res|)))) (fp.eq .cse0 .cse0))) (exists ((|v_ULTIMATE.start_fmod_double_#t~nondet20_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_6| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet31_6| (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#t~nondet19_6| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~y (_ BitVec 64))) (let ((.cse5 (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) ULTIMATE.start_fmod_double_~x)))) (let ((.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_6|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_6|))) (.cse6 (fp.mul roundNearestTiesToEven .cse5 (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~y) ((_ extract 62 52) ULTIMATE.start_fmod_double_~y) ((_ extract 51 0) ULTIMATE.start_fmod_double_~y)))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|)))) (and (= (fp ((_ extract 63 63) |c_ULTIMATE.start_fmod_double_#res|) ((_ extract 62 52) |c_ULTIMATE.start_fmod_double_#res|) ((_ extract 51 0) |c_ULTIMATE.start_fmod_double_#res|)) (fp.div roundNearestTiesToEven .cse1 .cse2)) (= (fp.div roundNearestTiesToEven .cse3 .cse4) .cse5) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse3) (= .cse6 .cse2) (= (_ +zero 11 53) .cse4) (= .cse6 .cse1)))))) is different from false [2020-12-02 15:34:31,577 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-02 15:34:34,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:34:34,028 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2020-12-02 15:34:34,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 15:34:34,071 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-12-02 15:34:34,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:34:34,072 INFO L225 Difference]: With dead ends: 57 [2020-12-02 15:34:34,072 INFO L226 Difference]: Without dead ends: 52 [2020-12-02 15:34:34,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 36.8s TimeCoverageRelationStatistics Valid=32, Invalid=66, Unknown=8, NotChecked=76, Total=182 [2020-12-02 15:34:34,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-02 15:34:34,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-02 15:34:34,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-02 15:34:34,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2020-12-02 15:34:34,087 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2020-12-02 15:34:34,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:34:34,088 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-12-02 15:34:34,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-02 15:34:34,088 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2020-12-02 15:34:34,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-02 15:34:34,090 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:34:34,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:34:34,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 15:34:34,301 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:34:34,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:34:34,302 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2020-12-02 15:34:34,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:34:34,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [56836289] [2020-12-02 15:34:34,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-12-02 15:34:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:34:35,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-02 15:34:35,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:34:41,874 WARN L197 SmtUtils]: Spent 2.14 s on a formula simplification that was a NOOP. DAG size: 25 [2020-12-02 15:34:44,004 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_#t~nondet31_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_8| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~x (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_8|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_8|)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) ULTIMATE.start_fmod_double_~x))) (= ((_ extract 63 32) ULTIMATE.start_fmod_double_~x) c_ULTIMATE.start_fmod_double_~hx~0) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) (= .cse1 (_ +zero 11 53))))) is different from false [2020-12-02 15:34:55,770 WARN L197 SmtUtils]: Spent 2.18 s on a formula simplification that was a NOOP. DAG size: 31 [2020-12-02 15:34:55,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:34:55,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:35:11,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:35:11,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [56836289] [2020-12-02 15:35:11,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:35:11,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-12-02 15:35:11,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617371742] [2020-12-02 15:35:11,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-02 15:35:11,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:35:11,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-02 15:35:11,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=35, Unknown=7, NotChecked=12, Total=72 [2020-12-02 15:35:11,075 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand 9 states. [2020-12-02 15:35:13,327 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet31_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_8| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_8|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_8|)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) c_ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) c_ULTIMATE.start_fmod_double_~x))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) (= .cse1 (_ +zero 11 53))))) (= roundNearestTiesToEven c_~CRM)) is different from false [2020-12-02 15:35:15,482 WARN L838 $PredicateComparison]: unable to prove that (and (bvsge (bvxor c_ULTIMATE.start_fmod_double_~hx~0 (bvand (_ bv2147483648 32) c_ULTIMATE.start_fmod_double_~hx~0)) (_ bv2146435072 32)) (exists ((|v_ULTIMATE.start_main_#t~nondet31_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_8| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~x (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_8|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_8|)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) ULTIMATE.start_fmod_double_~x))) (= ((_ extract 63 32) ULTIMATE.start_fmod_double_~x) c_ULTIMATE.start_fmod_double_~hx~0) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) (= .cse1 (_ +zero 11 53)))))) is different from false [2020-12-02 15:35:17,641 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet31_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_8| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~x (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_8|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_8|)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) ULTIMATE.start_fmod_double_~x))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) (= (let ((.cse2 ((_ extract 63 32) ULTIMATE.start_fmod_double_~x))) (bvxor .cse2 (bvand (_ bv2147483648 32) .cse2))) c_ULTIMATE.start_fmod_double_~hx~0) (= .cse1 (_ +zero 11 53))))) (bvsge c_ULTIMATE.start_fmod_double_~hx~0 (_ bv2146435072 32))) is different from false [2020-12-02 15:35:17,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:35:17,675 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2020-12-02 15:35:17,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 15:35:17,675 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2020-12-02 15:35:17,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:35:17,676 INFO L225 Difference]: With dead ends: 52 [2020-12-02 15:35:17,676 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 15:35:17,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 42.0s TimeCoverageRelationStatistics Valid=24, Invalid=38, Unknown=10, NotChecked=60, Total=132 [2020-12-02 15:35:17,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 15:35:17,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 15:35:17,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 15:35:17,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 15:35:17,678 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-12-02 15:35:17,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:35:17,678 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 15:35:17,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-02 15:35:17,678 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 15:35:17,678 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 15:35:17,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 15:35:17,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-02 15:35:25,304 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-02 15:35:25,306 FATAL L? ?]: 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)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:222) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:131) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:53) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:737) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walkParam(SimplifyDDA.java:526) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:412) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:165) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:135) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter(HoareAnnotationComposer.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.(HoareAnnotationComposer.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeCFGHoareAnnotation(BasicCegarLoop.java:1052) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 35 more [2020-12-02 15:35:25,314 INFO L168 Benchmark]: Toolchain (without parser) took 104546.28 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 24.7 MB in the beginning and 20.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:25,315 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 48.2 MB. Free memory was 29.6 MB in the beginning and 29.6 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:35:25,316 INFO L168 Benchmark]: CACSL2BoogieTranslator took 577.29 ms. Allocated memory is still 48.2 MB. Free memory was 24.5 MB in the beginning and 20.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:25,317 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.61 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 20.9 MB in the beginning and 42.7 MB in the end (delta: -21.8 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:25,318 INFO L168 Benchmark]: Boogie Preprocessor took 56.34 ms. Allocated memory is still 60.8 MB. Free memory was 42.7 MB in the beginning and 40.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:25,319 INFO L168 Benchmark]: RCFGBuilder took 5558.01 ms. Allocated memory is still 60.8 MB. Free memory was 40.2 MB in the beginning and 36.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:25,320 INFO L168 Benchmark]: TraceAbstraction took 98260.72 ms. Allocated memory is still 60.8 MB. Free memory was 36.2 MB in the beginning and 20.7 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:25,325 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 48.2 MB. Free memory was 29.6 MB in the beginning and 29.6 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 577.29 ms. Allocated memory is still 48.2 MB. Free memory was 24.5 MB in the beginning and 20.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.61 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 20.9 MB in the beginning and 42.7 MB in the end (delta: -21.8 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.34 ms. Allocated memory is still 60.8 MB. Free memory was 42.7 MB in the beginning and 40.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5558.01 ms. Allocated memory is still 60.8 MB. Free memory was 40.2 MB in the beginning and 36.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 98260.72 ms. Allocated memory is still 60.8 MB. Free memory was 36.2 MB in the beginning and 20.7 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...