./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-benchs/filter1.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d3efc4d3 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-benchs/filter1.c.v+nlh-reducer.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 3fd40f53ed73ef3dd0f75e7f5d32947f60951c95 ..................................................................................................................................................................................................................................................................................................................... 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-benchs/filter1.c.v+nlh-reducer.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 3fd40f53ed73ef3dd0f75e7f5d32947f60951c95 ....................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken --- Real Ultimate output --- This is Ultimate 0.2.0-d3efc4d [2020-12-04 09:41:27,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-04 09:41:27,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-04 09:41:27,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-04 09:41:27,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-04 09:41:27,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-04 09:41:27,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-04 09:41:27,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-04 09:41:27,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-04 09:41:27,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-04 09:41:27,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-04 09:41:27,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-04 09:41:27,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-04 09:41:27,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-04 09:41:27,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-04 09:41:27,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-04 09:41:27,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-04 09:41:27,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-04 09:41:27,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-04 09:41:27,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-04 09:41:27,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-04 09:41:27,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-04 09:41:27,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-04 09:41:27,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-04 09:41:27,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-04 09:41:27,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-04 09:41:27,479 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-04 09:41:27,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-04 09:41:27,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-04 09:41:27,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-04 09:41:27,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-04 09:41:27,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-04 09:41:27,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-04 09:41:27,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-04 09:41:27,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-04 09:41:27,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-04 09:41:27,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-04 09:41:27,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-04 09:41:27,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-04 09:41:27,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-04 09:41:27,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-04 09:41:27,501 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-04 09:41:27,557 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-04 09:41:27,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-04 09:41:27,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-04 09:41:27,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-04 09:41:27,559 INFO L138 SettingsManager]: * Use SBE=true [2020-12-04 09:41:27,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-04 09:41:27,560 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-04 09:41:27,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-04 09:41:27,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-04 09:41:27,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-04 09:41:27,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-04 09:41:27,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-04 09:41:27,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-04 09:41:27,561 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-04 09:41:27,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-04 09:41:27,562 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-04 09:41:27,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-04 09:41:27,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-04 09:41:27,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-04 09:41:27,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-04 09:41:27,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-04 09:41:27,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-04 09:41:27,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-04 09:41:27,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-04 09:41:27,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-04 09:41:27,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-04 09:41:27,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-04 09:41:27,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-04 09:41:27,565 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fd40f53ed73ef3dd0f75e7f5d32947f60951c95 [2020-12-04 09:41:27,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-04 09:41:27,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-04 09:41:27,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-04 09:41:27,981 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-04 09:41:27,982 INFO L275 PluginConnector]: CDTParser initialized [2020-12-04 09:41:27,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/filter1.c.v+nlh-reducer.c [2020-12-04 09:41:28,081 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e24d5d8ca/0340d72d5a9b4177beaf64ca35f3b0ff/FLAG5743d9e0c [2020-12-04 09:41:28,796 INFO L306 CDTParser]: Found 1 translation units. [2020-12-04 09:41:28,797 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/filter1.c.v+nlh-reducer.c [2020-12-04 09:41:28,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e24d5d8ca/0340d72d5a9b4177beaf64ca35f3b0ff/FLAG5743d9e0c [2020-12-04 09:41:29,136 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e24d5d8ca/0340d72d5a9b4177beaf64ca35f3b0ff [2020-12-04 09:41:29,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-04 09:41:29,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-04 09:41:29,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-04 09:41:29,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-04 09:41:29,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-04 09:41:29,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.12 09:41:29" (1/1) ... [2020-12-04 09:41:29,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75a5908d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:29, skipping insertion in model container [2020-12-04 09:41:29,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.12 09:41:29" (1/1) ... [2020-12-04 09:41:29,211 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-04 09:41:29,245 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-04 09:41:29,410 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-benchs/filter1.c.v+nlh-reducer.c[1372,1385] [2020-12-04 09:41:29,421 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-benchs/filter1.c.v+nlh-reducer.c[2411,2424] [2020-12-04 09:41:29,428 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-04 09:41:29,439 INFO L212 MainTranslator]: Completed pre-run [2020-12-04 09:41:29,459 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-benchs/filter1.c.v+nlh-reducer.c[1372,1385] [2020-12-04 09:41:29,471 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-benchs/filter1.c.v+nlh-reducer.c[2411,2424] [2020-12-04 09:41:29,483 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-04 09:41:29,510 INFO L217 MainTranslator]: Completed translation [2020-12-04 09:41:29,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:29 WrapperNode [2020-12-04 09:41:29,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-04 09:41:29,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-04 09:41:29,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-04 09:41:29,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-04 09:41:29,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:29" (1/1) ... [2020-12-04 09:41:29,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:29" (1/1) ... [2020-12-04 09:41:29,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-04 09:41:29,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-04 09:41:29,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-04 09:41:29,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-04 09:41:29,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:29" (1/1) ... [2020-12-04 09:41:29,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:29" (1/1) ... [2020-12-04 09:41:29,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:29" (1/1) ... [2020-12-04 09:41:29,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:29" (1/1) ... [2020-12-04 09:41:29,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:29" (1/1) ... [2020-12-04 09:41:29,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:29" (1/1) ... [2020-12-04 09:41:29,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:29" (1/1) ... [2020-12-04 09:41:29,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-04 09:41:29,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-04 09:41:29,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-04 09:41:29,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-04 09:41:29,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-04 09:41:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-04 09:41:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-04 09:41:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-04 09:41:29,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-04 09:41:30,171 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-04 09:41:30,172 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-04 09:41:30,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.12 09:41:30 BoogieIcfgContainer [2020-12-04 09:41:30,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-04 09:41:30,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-04 09:41:30,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-04 09:41:30,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-04 09:41:30,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.12 09:41:29" (1/3) ... [2020-12-04 09:41:30,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5657f0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.12 09:41:30, skipping insertion in model container [2020-12-04 09:41:30,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:29" (2/3) ... [2020-12-04 09:41:30,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5657f0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.12 09:41:30, skipping insertion in model container [2020-12-04 09:41:30,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.12 09:41:30" (3/3) ... [2020-12-04 09:41:30,184 INFO L111 eAbstractionObserver]: Analyzing ICFG filter1.c.v+nlh-reducer.c [2020-12-04 09:41:30,211 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-04 09:41:30,221 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-04 09:41:30,237 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-04 09:41:30,281 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-04 09:41:30,281 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-04 09:41:30,282 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-04 09:41:30,282 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-04 09:41:30,282 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-04 09:41:30,283 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-04 09:41:30,283 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-04 09:41:30,283 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-04 09:41:30,305 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-12-04 09:41:30,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-04 09:41:30,313 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 09:41:30,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 09:41:30,315 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 09:41:30,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 09:41:30,324 INFO L82 PathProgramCache]: Analyzing trace with hash 775758574, now seen corresponding path program 1 times [2020-12-04 09:41:30,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 09:41:30,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123003579] [2020-12-04 09:41:30,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 09:41:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 09:41:30,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 09:41:30,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123003579] [2020-12-04 09:41:30,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-04 09:41:30,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-04 09:41:30,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491173692] [2020-12-04 09:41:30,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-04 09:41:30,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-04 09:41:30,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-04 09:41:30,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-04 09:41:30,729 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 5 states. [2020-12-04 09:41:30,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 09:41:30,880 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2020-12-04 09:41:30,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-04 09:41:30,882 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-04 09:41:30,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 09:41:30,902 INFO L225 Difference]: With dead ends: 47 [2020-12-04 09:41:30,907 INFO L226 Difference]: Without dead ends: 34 [2020-12-04 09:41:30,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-04 09:41:30,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-04 09:41:30,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-12-04 09:41:30,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-04 09:41:30,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2020-12-04 09:41:30,956 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 13 [2020-12-04 09:41:30,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 09:41:30,957 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2020-12-04 09:41:30,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-04 09:41:30,957 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2020-12-04 09:41:30,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-04 09:41:30,958 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 09:41:30,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 09:41:30,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-04 09:41:30,959 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 09:41:30,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 09:41:30,960 INFO L82 PathProgramCache]: Analyzing trace with hash 845201395, now seen corresponding path program 1 times [2020-12-04 09:41:30,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 09:41:30,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198767427] [2020-12-04 09:41:30,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 09:41:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-04 09:41:30,983 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-04 09:41:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-04 09:41:31,013 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-04 09:41:31,037 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-04 09:41:31,037 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-04 09:41:31,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-04 09:41:31,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.12 09:41:31 BoogieIcfgContainer [2020-12-04 09:41:31,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-04 09:41:31,077 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-04 09:41:31,077 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-04 09:41:31,077 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-04 09:41:31,078 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.12 09:41:30" (3/4) ... [2020-12-04 09:41:31,082 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-04 09:41:31,082 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-04 09:41:31,085 INFO L168 Benchmark]: Toolchain (without parser) took 1938.74 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.2 MB in the beginning and 33.6 MB in the end (delta: -12.3 MB). Peak memory consumption was 113.9 kB. Max. memory is 16.1 GB. [2020-12-04 09:41:31,086 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 44.0 MB. Free memory was 27.1 MB in the beginning and 27.0 MB in the end (delta: 33.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 09:41:31,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.51 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.0 MB in the beginning and 39.1 MB in the end (delta: -18.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-04 09:41:31,088 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.68 ms. Allocated memory is still 54.5 MB. Free memory was 38.9 MB in the beginning and 37.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-04 09:41:31,089 INFO L168 Benchmark]: Boogie Preprocessor took 26.83 ms. Allocated memory is still 54.5 MB. Free memory was 37.3 MB in the beginning and 36.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 09:41:31,089 INFO L168 Benchmark]: RCFGBuilder took 590.95 ms. Allocated memory is still 54.5 MB. Free memory was 36.1 MB in the beginning and 32.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2020-12-04 09:41:31,090 INFO L168 Benchmark]: TraceAbstraction took 900.49 ms. Allocated memory is still 54.5 MB. Free memory was 32.4 MB in the beginning and 34.2 MB in the end (delta: -1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 09:41:31,091 INFO L168 Benchmark]: Witness Printer took 5.19 ms. Allocated memory is still 54.5 MB. Free memory was 33.9 MB in the beginning and 33.6 MB in the end (delta: 299.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 09:41:31,096 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 44.0 MB. Free memory was 27.1 MB in the beginning and 27.0 MB in the end (delta: 33.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 364.51 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.0 MB in the beginning and 39.1 MB in the end (delta: -18.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.68 ms. Allocated memory is still 54.5 MB. Free memory was 38.9 MB in the beginning and 37.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.83 ms. Allocated memory is still 54.5 MB. Free memory was 37.3 MB in the beginning and 36.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 590.95 ms. Allocated memory is still 54.5 MB. Free memory was 36.1 MB in the beginning and 32.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 900.49 ms. Allocated memory is still 54.5 MB. Free memory was 32.4 MB in the beginning and 34.2 MB in the end (delta: -1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.19 ms. Allocated memory is still 54.5 MB. Free memory was 33.9 MB in the beginning and 33.6 MB in the end (delta: 299.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 59]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_real at line 42, overapproximation of someBinaryDOUBLE_SMTComparisonOperation at line 46. Possible FailurePath: [L1] int __return_main; [L13] int __tmp_129_0; [L14] int __tmp_129_1; [L15] int __tmp_129_2; [L16] int __tmp_112_0; [L17] int __return_134; VAL [__return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0] [L20] double main__E0; [L21] double main__E1; [L22] double main__S; [L23] int main__i; [L24] main__E1 = 0 [L25] main__S = 0 [L26] main__i = 0 VAL [__return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0] [L27] COND TRUE main__i <= 1000000 [L29] main__E0 = __VERIFIER_nondet_double() [L30] int main____CPAchecker_TMP_0; VAL [__return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0] [L31] COND TRUE main__E0 >= -1.0 VAL [__return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0] [L33] COND TRUE main__E0 <= 1.0 [L35] main____CPAchecker_TMP_0 = 1 VAL [__return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0] [L36] COND TRUE main____CPAchecker_TMP_0 != 0 [L38] int main____CPAchecker_TMP_1; [L39] main____CPAchecker_TMP_1 = __VERIFIER_nondet_int() [L40] COND TRUE !(main____CPAchecker_TMP_1 == 0) [L42] main__S = 0 VAL [__return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0] [L44] main__E1 = main__E0 [L45] int main____CPAchecker_TMP_2; VAL [__return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0] [L46] COND FALSE !(main__S >= -10000.0) VAL [__return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0] [L166] main____CPAchecker_TMP_2 = 0 VAL [__return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0] [L53] int __tmp_1; [L54] __tmp_1 = main____CPAchecker_TMP_2 [L55] int __VERIFIER_assert__cond; [L56] __VERIFIER_assert__cond = __tmp_1 VAL [__return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0] [L57] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0] [L59] reach_error() VAL [__return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 45 SDtfs, 45 SDslu, 89 SDs, 0 SdLazy, 17 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 240 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-d3efc4d [2020-12-04 09:41:33,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-04 09:41:33,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-04 09:41:33,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-04 09:41:33,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-04 09:41:33,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-04 09:41:33,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-04 09:41:33,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-04 09:41:33,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-04 09:41:33,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-04 09:41:33,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-04 09:41:33,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-04 09:41:33,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-04 09:41:33,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-04 09:41:33,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-04 09:41:33,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-04 09:41:33,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-04 09:41:33,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-04 09:41:33,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-04 09:41:33,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-04 09:41:33,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-04 09:41:33,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-04 09:41:33,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-04 09:41:33,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-04 09:41:33,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-04 09:41:33,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-04 09:41:33,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-04 09:41:33,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-04 09:41:33,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-04 09:41:33,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-04 09:41:33,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-04 09:41:33,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-04 09:41:33,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-04 09:41:33,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-04 09:41:33,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-04 09:41:33,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-04 09:41:33,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-04 09:41:33,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-04 09:41:33,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-04 09:41:33,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-04 09:41:33,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-04 09:41:33,850 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-04 09:41:33,901 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-04 09:41:33,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-04 09:41:33,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-04 09:41:33,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-04 09:41:33,905 INFO L138 SettingsManager]: * Use SBE=true [2020-12-04 09:41:33,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-04 09:41:33,905 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-04 09:41:33,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-04 09:41:33,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-04 09:41:33,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-04 09:41:33,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-04 09:41:33,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-04 09:41:33,908 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-04 09:41:33,908 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-04 09:41:33,908 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-04 09:41:33,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-04 09:41:33,908 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-04 09:41:33,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-04 09:41:33,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-04 09:41:33,909 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-04 09:41:33,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-04 09:41:33,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-04 09:41:33,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-04 09:41:33,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-04 09:41:33,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-04 09:41:33,911 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-04 09:41:33,911 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-04 09:41:33,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-04 09:41:33,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-04 09:41:33,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-04 09:41:33,912 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fd40f53ed73ef3dd0f75e7f5d32947f60951c95 [2020-12-04 09:41:34,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-04 09:41:34,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-04 09:41:34,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-04 09:41:34,335 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-04 09:41:34,338 INFO L275 PluginConnector]: CDTParser initialized [2020-12-04 09:41:34,339 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/filter1.c.v+nlh-reducer.c [2020-12-04 09:41:34,418 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a610d774c/d05e2761b9a14f2f8da09cd0da1faaec/FLAGa812cadec [2020-12-04 09:41:35,068 INFO L306 CDTParser]: Found 1 translation units. [2020-12-04 09:41:35,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/filter1.c.v+nlh-reducer.c [2020-12-04 09:41:35,079 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a610d774c/d05e2761b9a14f2f8da09cd0da1faaec/FLAGa812cadec [2020-12-04 09:41:35,384 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a610d774c/d05e2761b9a14f2f8da09cd0da1faaec [2020-12-04 09:41:35,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-04 09:41:35,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-04 09:41:35,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-04 09:41:35,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-04 09:41:35,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-04 09:41:35,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.12 09:41:35" (1/1) ... [2020-12-04 09:41:35,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@773a3c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:35, skipping insertion in model container [2020-12-04 09:41:35,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.12 09:41:35" (1/1) ... [2020-12-04 09:41:35,422 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-04 09:41:35,455 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-04 09:41:35,675 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-benchs/filter1.c.v+nlh-reducer.c[1372,1385] [2020-12-04 09:41:35,688 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-benchs/filter1.c.v+nlh-reducer.c[2411,2424] [2020-12-04 09:41:35,697 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-04 09:41:35,715 INFO L212 MainTranslator]: Completed pre-run [2020-12-04 09:41:35,744 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-benchs/filter1.c.v+nlh-reducer.c[1372,1385] [2020-12-04 09:41:35,750 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-benchs/filter1.c.v+nlh-reducer.c[2411,2424] [2020-12-04 09:41:35,758 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-04 09:41:35,779 INFO L217 MainTranslator]: Completed translation [2020-12-04 09:41:35,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:35 WrapperNode [2020-12-04 09:41:35,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-04 09:41:35,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-04 09:41:35,782 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-04 09:41:35,782 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-04 09:41:35,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:35" (1/1) ... [2020-12-04 09:41:35,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:35" (1/1) ... [2020-12-04 09:41:35,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-04 09:41:35,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-04 09:41:35,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-04 09:41:35,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-04 09:41:35,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:35" (1/1) ... [2020-12-04 09:41:35,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:35" (1/1) ... [2020-12-04 09:41:35,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:35" (1/1) ... [2020-12-04 09:41:35,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:35" (1/1) ... [2020-12-04 09:41:35,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:35" (1/1) ... [2020-12-04 09:41:35,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:35" (1/1) ... [2020-12-04 09:41:35,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:35" (1/1) ... [2020-12-04 09:41:35,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-04 09:41:35,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-04 09:41:35,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-04 09:41:35,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-04 09:41:35,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-04 09:41:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-04 09:41:35,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-04 09:41:35,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-04 09:41:35,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-04 09:41:35,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-04 09:41:40,638 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-04 09:41:40,639 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-04 09:41:40,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.12 09:41:40 BoogieIcfgContainer [2020-12-04 09:41:40,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-04 09:41:40,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-04 09:41:40,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-04 09:41:40,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-04 09:41:40,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.12 09:41:35" (1/3) ... [2020-12-04 09:41:40,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696607a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.12 09:41:40, skipping insertion in model container [2020-12-04 09:41:40,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 09:41:35" (2/3) ... [2020-12-04 09:41:40,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696607a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.12 09:41:40, skipping insertion in model container [2020-12-04 09:41:40,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.12 09:41:40" (3/3) ... [2020-12-04 09:41:40,650 INFO L111 eAbstractionObserver]: Analyzing ICFG filter1.c.v+nlh-reducer.c [2020-12-04 09:41:40,665 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-04 09:41:40,669 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-04 09:41:40,687 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-04 09:41:40,714 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-04 09:41:40,714 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-04 09:41:40,714 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-04 09:41:40,715 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-04 09:41:40,715 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-04 09:41:40,715 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-04 09:41:40,715 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-04 09:41:40,715 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-04 09:41:40,730 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-12-04 09:41:40,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-04 09:41:40,736 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 09:41:40,736 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 09:41:40,737 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 09:41:40,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 09:41:40,743 INFO L82 PathProgramCache]: Analyzing trace with hash 775758574, now seen corresponding path program 1 times [2020-12-04 09:41:40,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-04 09:41:40,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1387164309] [2020-12-04 09:41:40,758 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 [2020-12-04 09:41:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 09:41:40,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-04 09:41:40,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 09:41:41,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 09:41:41,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-04 09:41:41,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 09:41:41,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1387164309] [2020-12-04 09:41:41,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-04 09:41:41,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-12-04 09:41:41,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053698800] [2020-12-04 09:41:41,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-04 09:41:41,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-04 09:41:41,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-04 09:41:41,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-04 09:41:41,108 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 6 states. [2020-12-04 09:41:41,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 09:41:41,245 INFO L93 Difference]: Finished difference Result 65 states and 86 transitions. [2020-12-04 09:41:41,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-04 09:41:41,247 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-04 09:41:41,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 09:41:41,260 INFO L225 Difference]: With dead ends: 65 [2020-12-04 09:41:41,261 INFO L226 Difference]: Without dead ends: 48 [2020-12-04 09:41:41,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-04 09:41:41,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-12-04 09:41:41,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 32. [2020-12-04 09:41:41,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-04 09:41:41,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2020-12-04 09:41:41,324 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 13 [2020-12-04 09:41:41,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 09:41:41,325 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2020-12-04 09:41:41,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-04 09:41:41,326 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2020-12-04 09:41:41,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-04 09:41:41,328 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 09:41:41,328 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 09:41:41,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-04 09:41:41,545 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 09:41:41,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 09:41:41,549 INFO L82 PathProgramCache]: Analyzing trace with hash 845201395, now seen corresponding path program 1 times [2020-12-04 09:41:41,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-04 09:41:41,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513404487] [2020-12-04 09:41:41,554 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 [2020-12-04 09:41:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 09:41:41,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-04 09:41:41,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 09:41:41,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 09:41:41,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-04 09:41:41,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 09:41:41,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513404487] [2020-12-04 09:41:41,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-04 09:41:41,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-12-04 09:41:41,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333024910] [2020-12-04 09:41:41,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-04 09:41:41,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-04 09:41:41,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-04 09:41:41,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-04 09:41:41,958 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand 6 states. [2020-12-04 09:41:49,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 09:41:49,358 INFO L93 Difference]: Finished difference Result 77 states and 97 transitions. [2020-12-04 09:41:49,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-04 09:41:49,360 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-04 09:41:49,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 09:41:49,361 INFO L225 Difference]: With dead ends: 77 [2020-12-04 09:41:49,361 INFO L226 Difference]: Without dead ends: 57 [2020-12-04 09:41:49,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-04 09:41:49,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-12-04 09:41:49,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 34. [2020-12-04 09:41:49,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-04 09:41:49,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2020-12-04 09:41:49,371 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 13 [2020-12-04 09:41:49,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 09:41:49,372 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2020-12-04 09:41:49,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-04 09:41:49,372 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2020-12-04 09:41:49,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-04 09:41:49,373 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 09:41:49,373 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 09:41:49,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-04 09:41:49,597 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 09:41:49,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 09:41:49,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1168948157, now seen corresponding path program 1 times [2020-12-04 09:41:49,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-04 09:41:49,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [923960111] [2020-12-04 09:41:49,600 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 [2020-12-04 09:41:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 09:41:50,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-04 09:41:50,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 09:41:50,705 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-12-04 09:41:51,038 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-12-04 09:41:53,123 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet33_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet11_7| (_ BitVec 64)) (|ULTIMATE.start_main_#t~nondet10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_7| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet31_5| (_ BitVec 64)) (ULTIMATE.start_main_~main__E0~0 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__S~0_21 (_ BitVec 64)) (ULTIMATE.start_main_~main__E1~0 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet11_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet11_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet11_7|))) (.cse5 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet10|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet10|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet10|))) (.cse4 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__E1~0) ((_ extract 62 52) ULTIMATE.start_main_~main__E1~0) ((_ extract 51 0) ULTIMATE.start_main_~main__E1~0))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_7|))) (.cse7 ((_ to_fp 11 53) c_~CRM 1.0)) (.cse8 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_5|))) (.cse1 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__E0~0) ((_ extract 62 52) ULTIMATE.start_main_~main__E0~0) ((_ extract 51 0) ULTIMATE.start_main_~main__E0~0))) (.cse3 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (.cse9 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_5|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_5|))) (.cse10 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__S~0_21) ((_ extract 62 52) v_ULTIMATE.start_main_~main__S~0_21) ((_ extract 51 0) v_ULTIMATE.start_main_~main__S~0_21)))) (and (= .cse0 ((_ to_fp 11 53) c_~CRM (/ 999.0 1000.0))) (fp.geq .cse1 .cse2) (= .cse3 .cse4) (= (fp.neg .cse5) .cse2) (fp.leq .cse1 .cse6) (= .cse7 .cse5) (= (fp.sub c_~CRM .cse8 .cse4) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__S~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__S~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__S~0))) (= .cse6 .cse7) (= .cse8 (fp.add c_~CRM .cse9 .cse1)) (= .cse10 .cse3) (= .cse9 (fp.mul c_~CRM .cse0 .cse10)))))) is different from false [2020-12-04 09:41:55,206 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_#t~nondet15| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet15|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet15|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet15|)))) (and (= ((_ to_fp 11 53) roundNearestTiesToEven 10000.0) .cse0) (= (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet16|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet16|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet16|)) (fp.neg .cse0))))) (exists ((|v_ULTIMATE.start_main_#t~nondet33_5| (_ BitVec 64)) (|ULTIMATE.start_main_#t~nondet10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet11_7| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_7| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet31_5| (_ BitVec 64)) (ULTIMATE.start_main_~main__E0~0 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__S~0_21 (_ BitVec 64)) (ULTIMATE.start_main_~main__E1~0 (_ BitVec 64))) (let ((.cse4 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet10|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet10|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet10|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet11_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet11_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet11_7|))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse5 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__E0~0) ((_ extract 62 52) ULTIMATE.start_main_~main__E0~0) ((_ extract 51 0) ULTIMATE.start_main_~main__E0~0))) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse8 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_7|))) (.cse9 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_5|))) (.cse2 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__E1~0) ((_ extract 62 52) ULTIMATE.start_main_~main__E1~0) ((_ extract 51 0) ULTIMATE.start_main_~main__E1~0))) (.cse10 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_5|))) (.cse11 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_5|))) (.cse7 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__S~0_21) ((_ extract 62 52) v_ULTIMATE.start_main_~main__S~0_21) ((_ extract 51 0) v_ULTIMATE.start_main_~main__S~0_21)))) (and (= .cse1 .cse2) (= .cse3 .cse4) (fp.geq .cse5 .cse6) (= (fp.neg .cse4) .cse6) (= .cse7 .cse1) (fp.leq .cse5 .cse8) (= .cse9 (fp.add roundNearestTiesToEven .cse10 .cse5)) (= .cse3 .cse8) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__S~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__S~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__S~0)) (fp.sub roundNearestTiesToEven .cse9 .cse2)) (= .cse11 ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0))) (= .cse10 (fp.mul roundNearestTiesToEven .cse11 .cse7)))))) is different from false [2020-12-04 09:41:55,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 09:41:55,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-04 09:41:57,626 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet33_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet31_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet16_12| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__S~0_22 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet15_8| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_5|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet15_8|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet16_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet16_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet16_12|))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__S~0_22) ((_ extract 62 52) v_ULTIMATE.start_main_~main__S~0_22) ((_ extract 51 0) v_ULTIMATE.start_main_~main__S~0_22))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_5|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_5|)))) (or (not (= .cse0 ((_ to_fp 11 53) c_~CRM (/ 999.0 1000.0)))) (not (= .cse1 (fp.mul c_~CRM .cse0 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__S~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__S~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__S~0))))) (not (= ((_ to_fp 11 53) c_~CRM 10000.0) .cse2)) (not (= (fp.neg .cse2) .cse3)) (fp.geq .cse4 .cse3) (not (= (fp.sub c_~CRM .cse5 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__E1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__E1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__E1~0))) .cse4)) (not (= .cse5 (fp.add c_~CRM .cse1 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__E0~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__E0~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__E0~0)))))))) is different from true [2020-12-04 09:41:59,712 WARN L860 $PredicateComparison]: unable to prove that (or (not (fp.leq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__E0~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__E0~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__E0~0)) (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet12|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet12|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet12|)))) (forall ((|v_ULTIMATE.start_main_#t~nondet33_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet31_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet16_12| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__S~0_22 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet15_8| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_5|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet15_8|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet16_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet16_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet16_12|))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__S~0_22) ((_ extract 62 52) v_ULTIMATE.start_main_~main__S~0_22) ((_ extract 51 0) v_ULTIMATE.start_main_~main__S~0_22))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_5|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_5|)))) (or (not (= .cse0 ((_ to_fp 11 53) c_~CRM (/ 999.0 1000.0)))) (not (= .cse1 (fp.mul c_~CRM .cse0 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__S~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__S~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__S~0))))) (not (= ((_ to_fp 11 53) c_~CRM 10000.0) .cse2)) (not (= (fp.neg .cse2) .cse3)) (fp.geq .cse4 .cse3) (not (= (fp.sub c_~CRM .cse5 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__E1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__E1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__E1~0))) .cse4)) (not (= .cse5 (fp.add c_~CRM .cse1 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__E0~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__E0~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__E0~0))))))))) is different from true [2020-12-04 09:42:01,802 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet33_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet31_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet16_12| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__S~0_22 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (ULTIMATE.start_main_~main__E0~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet15_8| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_5|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet15_8|))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet16_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet16_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet16_12|))) (.cse6 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__S~0_22) ((_ extract 62 52) v_ULTIMATE.start_main_~main__S~0_22) ((_ extract 51 0) v_ULTIMATE.start_main_~main__S~0_22))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_5|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_5|))) (.cse1 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__E0~0) ((_ extract 62 52) ULTIMATE.start_main_~main__E0~0) ((_ extract 51 0) ULTIMATE.start_main_~main__E0~0)))) (or (not (= .cse0 ((_ to_fp 11 53) c_~CRM (/ 999.0 1000.0)))) (not (fp.leq .cse1 .cse2)) (not (fp.geq .cse1 (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet11|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet11|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet11|)))) (not (= .cse3 (fp.mul c_~CRM .cse0 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__S~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__S~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__S~0))))) (not (= ((_ to_fp 11 53) c_~CRM 10000.0) .cse4)) (not (= (fp.neg .cse4) .cse5)) (fp.geq .cse6 .cse5) (not (= (fp.sub c_~CRM .cse7 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__E1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__E1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__E1~0))) .cse6)) (not (= .cse2 ((_ to_fp 11 53) c_~CRM 1.0))) (not (= .cse7 (fp.add c_~CRM .cse3 .cse1)))))) is different from true [2020-12-04 09:42:03,892 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet33_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet31_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet16_12| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__S~0_22 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet11_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (ULTIMATE.start_main_~main__E0~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet15_8| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet11_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet11_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet11_9|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_5|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet15_8|))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet16_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet16_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet16_12|))) (.cse8 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__S~0_22) ((_ extract 62 52) v_ULTIMATE.start_main_~main__S~0_22) ((_ extract 51 0) v_ULTIMATE.start_main_~main__S~0_22))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|))) (.cse10 ((_ to_fp 11 53) c_~CRM 1.0)) (.cse9 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_5|))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_5|))) (.cse3 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__E0~0) ((_ extract 62 52) ULTIMATE.start_main_~main__E0~0) ((_ extract 51 0) ULTIMATE.start_main_~main__E0~0)))) (or (not (= .cse0 ((_ to_fp 11 53) c_~CRM (/ 999.0 1000.0)))) (not (= (fp.neg .cse1) .cse2)) (not (fp.geq .cse3 .cse2)) (not (fp.leq .cse3 .cse4)) (not (= .cse5 (fp.mul c_~CRM .cse0 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__S~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__S~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__S~0))))) (not (= ((_ to_fp 11 53) c_~CRM 10000.0) .cse6)) (not (= (fp.neg .cse6) .cse7)) (fp.geq .cse8 .cse7) (not (= (fp.sub c_~CRM .cse9 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__E1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__E1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__E1~0))) .cse8)) (not (= .cse10 .cse1)) (not (= .cse4 .cse10)) (not (= .cse9 (fp.add c_~CRM .cse5 .cse3)))))) is different from true [2020-12-04 09:42:04,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 09:42:04,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [923960111] [2020-12-04 09:42:04,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-04 09:42:04,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2020-12-04 09:42:04,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384624351] [2020-12-04 09:42:04,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-04 09:42:04,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-04 09:42:04,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-04 09:42:04,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=6, NotChecked=114, Total=210 [2020-12-04 09:42:04,189 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 15 states. [2020-12-04 09:42:05,598 WARN L197 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 35 [2020-12-04 09:42:08,826 WARN L197 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 47 [2020-12-04 09:42:16,480 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet33_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet11_7| (_ BitVec 64)) (|ULTIMATE.start_main_#t~nondet10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_7| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet31_5| (_ BitVec 64)) (ULTIMATE.start_main_~main__E0~0 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__S~0_21 (_ BitVec 64)) (ULTIMATE.start_main_~main__E1~0 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet11_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet11_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet11_7|))) (.cse5 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet10|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet10|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet10|))) (.cse4 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__E1~0) ((_ extract 62 52) ULTIMATE.start_main_~main__E1~0) ((_ extract 51 0) ULTIMATE.start_main_~main__E1~0))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_7|))) (.cse7 ((_ to_fp 11 53) c_~CRM 1.0)) (.cse8 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_5|))) (.cse1 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__E0~0) ((_ extract 62 52) ULTIMATE.start_main_~main__E0~0) ((_ extract 51 0) ULTIMATE.start_main_~main__E0~0))) (.cse3 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (.cse9 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_5|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_5|))) (.cse10 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__S~0_21) ((_ extract 62 52) v_ULTIMATE.start_main_~main__S~0_21) ((_ extract 51 0) v_ULTIMATE.start_main_~main__S~0_21)))) (and (= .cse0 ((_ to_fp 11 53) c_~CRM (/ 999.0 1000.0))) (fp.geq .cse1 .cse2) (= .cse3 .cse4) (= (fp.neg .cse5) .cse2) (fp.leq .cse1 .cse6) (= .cse7 .cse5) (= (fp.sub c_~CRM .cse8 .cse4) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__S~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__S~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__S~0))) (= .cse6 .cse7) (= .cse8 (fp.add c_~CRM .cse9 .cse1)) (= .cse10 .cse3) (= .cse9 (fp.mul c_~CRM .cse0 .cse10))))) (forall ((|v_ULTIMATE.start_main_#t~nondet16_12| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet15_8| (_ BitVec 64))) (let ((.cse12 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet15_8|))) (.cse11 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet16_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet16_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet16_12|)))) (or (fp.geq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__S~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__S~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__S~0)) .cse11) (not (= ((_ to_fp 11 53) c_~CRM 10000.0) .cse12)) (not (= (fp.neg .cse12) .cse11)))))) is different from false [2020-12-04 09:42:18,899 WARN L838 $PredicateComparison]: unable to prove that (and (fp.geq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__S~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__S~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__S~0)) (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet16|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet16|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet16|))) (= roundNearestTiesToEven c_~CRM) (forall ((|v_ULTIMATE.start_main_#t~nondet16_12| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet15_8| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet15_8|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet16_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet16_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet16_12|)))) (or (fp.geq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__S~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__S~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__S~0)) .cse0) (not (= ((_ to_fp 11 53) c_~CRM 10000.0) .cse1)) (not (= (fp.neg .cse1) .cse0)))))) is different from false [2020-12-04 09:42:21,057 WARN L838 $PredicateComparison]: unable to prove that (and (fp.geq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__S~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__S~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__S~0)) (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet16|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet16|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet16|))) (exists ((|ULTIMATE.start_main_#t~nondet15| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet15|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet15|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet15|)))) (and (= ((_ to_fp 11 53) roundNearestTiesToEven 10000.0) .cse0) (= (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet16|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet16|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet16|)) (fp.neg .cse0))))) (exists ((|v_ULTIMATE.start_main_#t~nondet33_5| (_ BitVec 64)) (|ULTIMATE.start_main_#t~nondet10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet11_7| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_7| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_5| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet31_5| (_ BitVec 64)) (ULTIMATE.start_main_~main__E0~0 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__S~0_21 (_ BitVec 64)) (ULTIMATE.start_main_~main__E1~0 (_ BitVec 64))) (let ((.cse4 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet10|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet10|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet10|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet11_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet11_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet11_7|))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse5 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__E0~0) ((_ extract 62 52) ULTIMATE.start_main_~main__E0~0) ((_ extract 51 0) ULTIMATE.start_main_~main__E0~0))) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse8 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_7|))) (.cse9 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_5|))) (.cse2 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__E1~0) ((_ extract 62 52) ULTIMATE.start_main_~main__E1~0) ((_ extract 51 0) ULTIMATE.start_main_~main__E1~0))) (.cse10 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_5|))) (.cse11 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_5|))) (.cse7 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__S~0_21) ((_ extract 62 52) v_ULTIMATE.start_main_~main__S~0_21) ((_ extract 51 0) v_ULTIMATE.start_main_~main__S~0_21)))) (and (= .cse1 .cse2) (= .cse3 .cse4) (fp.geq .cse5 .cse6) (= (fp.neg .cse4) .cse6) (= .cse7 .cse1) (fp.leq .cse5 .cse8) (= .cse9 (fp.add roundNearestTiesToEven .cse10 .cse5)) (= .cse3 .cse8) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__S~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__S~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__S~0)) (fp.sub roundNearestTiesToEven .cse9 .cse2)) (= .cse11 ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0))) (= .cse10 (fp.mul roundNearestTiesToEven .cse11 .cse7)))))) is different from false [2020-12-04 09:42:39,804 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-04 09:42:40,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-04 09:42:40,009 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) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:137) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:128) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPrecondition(IncrementalHoareTripleChecker.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:281) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:93) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:162) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:201) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:759) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:674) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) 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: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:254) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 31 more [2020-12-04 09:42:40,020 INFO L168 Benchmark]: Toolchain (without parser) took 64630.02 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 18.6 MB in the beginning and 29.6 MB in the end (delta: -10.9 MB). Peak memory consumption was 850.0 kB. Max. memory is 16.1 GB. [2020-12-04 09:42:40,021 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 41.9 MB. Free memory is still 26.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 09:42:40,024 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.24 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 18.4 MB in the beginning and 33.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2020-12-04 09:42:40,025 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.21 ms. Allocated memory is still 50.3 MB. Free memory was 32.9 MB in the beginning and 31.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-04 09:42:40,027 INFO L168 Benchmark]: Boogie Preprocessor took 36.19 ms. Allocated memory is still 50.3 MB. Free memory was 30.8 MB in the beginning and 29.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-04 09:42:40,034 INFO L168 Benchmark]: RCFGBuilder took 4761.22 ms. Allocated memory is still 50.3 MB. Free memory was 29.4 MB in the beginning and 21.2 MB in the end (delta: 8.2 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2020-12-04 09:42:40,035 INFO L168 Benchmark]: TraceAbstraction took 59376.22 ms. Allocated memory is still 50.3 MB. Free memory was 20.8 MB in the beginning and 29.6 MB in the end (delta: -8.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 09:42:40,047 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 41.9 MB. Free memory is still 26.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 387.24 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 18.4 MB in the beginning and 33.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.21 ms. Allocated memory is still 50.3 MB. Free memory was 32.9 MB in the beginning and 31.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.19 ms. Allocated memory is still 50.3 MB. Free memory was 30.8 MB in the beginning and 29.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 4761.22 ms. Allocated memory is still 50.3 MB. Free memory was 29.4 MB in the beginning and 21.2 MB in the end (delta: 8.2 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 59376.22 ms. Allocated memory is still 50.3 MB. Free memory was 20.8 MB in the beginning and 29.6 MB in the end (delta: -8.8 MB). There was no memory consumed. 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) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...