./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0834.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 096883e9 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 ../sv-benchmarks/c/float-newlib/double_req_bl_0834.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 78ea4619176830aa2eaba3eb142f65766ef4226b ........................................................................................................................................................................................................................................................................................................................................... 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 ../sv-benchmarks/c/float-newlib/double_req_bl_0834.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 78ea4619176830aa2eaba3eb142f65766ef4226b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-096883e [2020-12-01 23:13:58,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:13:58,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:13:58,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 23:13:58,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 23:13:58,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 23:13:58,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 23:13:58,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 23:13:58,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 23:13:58,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 23:13:58,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 23:13:58,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 23:13:58,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:13:58,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:13:58,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:13:58,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:13:58,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:13:58,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:13:58,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:13:58,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:13:58,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:13:58,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:13:58,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:13:58,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:13:58,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 23:13:58,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 23:13:58,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 23:13:58,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 23:13:58,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 23:13:58,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 23:13:58,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:13:58,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:13:58,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:13:58,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:13:58,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:13:58,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:13:58,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:13:58,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:13:58,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:13:58,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:13:58,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:13:58,552 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 23:13:58,587 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:13:58,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:13:58,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:13:58,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:13:58,590 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:13:58,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:13:58,590 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:13:58,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 23:13:58,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:13:58,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:13:58,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:13:58,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:13:58,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:13:58,592 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:13:58,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:13:58,593 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:13:58,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:13:58,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:13:58,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:13:58,594 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:13:58,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:13:58,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:13:58,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:13:58,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:13:58,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:13:58,596 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 23:13:58,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 23:13:58,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:13:58,596 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:13:58,597 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78ea4619176830aa2eaba3eb142f65766ef4226b [2020-12-01 23:13:58,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:13:58,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:13:58,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:13:58,980 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:13:58,981 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:13:58,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2020-12-01 23:13:59,066 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4b4dc29/7deb268923d64b8fb21db82848120392/FLAG0674bf160 [2020-12-01 23:13:59,738 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:13:59,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2020-12-01 23:13:59,749 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4b4dc29/7deb268923d64b8fb21db82848120392/FLAG0674bf160 [2020-12-01 23:14:00,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4b4dc29/7deb268923d64b8fb21db82848120392 [2020-12-01 23:14:00,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:14:00,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:14:00,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:14:00,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:14:00,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:14:00,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:14:00" (1/1) ... [2020-12-01 23:14:00,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52c7017f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:00, skipping insertion in model container [2020-12-01 23:14:00,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:14:00" (1/1) ... [2020-12-01 23:14:00,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:14:00,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:14:00,363 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0834.c[4256,4269] [2020-12-01 23:14:00,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:14:00,378 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:14:00,451 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0834.c[4256,4269] [2020-12-01 23:14:00,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:14:00,492 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:14:00,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:00 WrapperNode [2020-12-01 23:14:00,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:14:00,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:14:00,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:14:00,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:14:00,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:00" (1/1) ... [2020-12-01 23:14:00,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:00" (1/1) ... [2020-12-01 23:14:00,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:14:00,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:14:00,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:14:00,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:14:00,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:00" (1/1) ... [2020-12-01 23:14:00,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:00" (1/1) ... [2020-12-01 23:14:00,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:00" (1/1) ... [2020-12-01 23:14:00,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:00" (1/1) ... [2020-12-01 23:14:00,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:00" (1/1) ... [2020-12-01 23:14:00,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:00" (1/1) ... [2020-12-01 23:14:00,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:00" (1/1) ... [2020-12-01 23:14:00,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:14:00,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:14:00,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:14:00,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:14:00,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:00" (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 [2020-12-01 23:14:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 23:14:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:14:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 23:14:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 23:14:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 23:14:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:14:00,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:14:00,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 23:14:00,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-01 23:14:00,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:14:01,373 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:14:01,374 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-01 23:14:01,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:14:01 BoogieIcfgContainer [2020-12-01 23:14:01,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:14:01,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:14:01,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:14:01,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:14:01,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:14:00" (1/3) ... [2020-12-01 23:14:01,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606c6f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:14:01, skipping insertion in model container [2020-12-01 23:14:01,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:00" (2/3) ... [2020-12-01 23:14:01,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606c6f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:14:01, skipping insertion in model container [2020-12-01 23:14:01,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:14:01" (3/3) ... [2020-12-01 23:14:01,384 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0834.c [2020-12-01 23:14:01,402 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:14:01,407 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:14:01,420 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:14:01,447 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:14:01,448 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:14:01,448 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:14:01,448 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:14:01,448 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:14:01,448 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:14:01,448 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:14:01,449 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:14:01,465 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-12-01 23:14:01,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 23:14:01,474 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:14:01,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:14:01,475 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:14:01,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:14:01,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1546239330, now seen corresponding path program 1 times [2020-12-01 23:14:01,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:14:01,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644980729] [2020-12-01 23:14:01,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:14:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:14:01,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:14:01,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644980729] [2020-12-01 23:14:01,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:14:01,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 23:14:01,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492763231] [2020-12-01 23:14:01,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:14:01,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 23:14:01,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:14:01,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:14:01,705 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-12-01 23:14:01,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:14:01,728 INFO L93 Difference]: Finished difference Result 84 states and 136 transitions. [2020-12-01 23:14:01,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:14:01,729 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-12-01 23:14:01,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:14:01,740 INFO L225 Difference]: With dead ends: 84 [2020-12-01 23:14:01,741 INFO L226 Difference]: Without dead ends: 40 [2020-12-01 23:14:01,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:14:01,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-12-01 23:14:01,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-12-01 23:14:01,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-12-01 23:14:01,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2020-12-01 23:14:01,787 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 13 [2020-12-01 23:14:01,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:14:01,788 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2020-12-01 23:14:01,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:14:01,788 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-12-01 23:14:01,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 23:14:01,789 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:14:01,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:14:01,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 23:14:01,790 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:14:01,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:14:01,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1188959094, now seen corresponding path program 1 times [2020-12-01 23:14:01,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:14:01,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003378547] [2020-12-01 23:14:01,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:14:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:14:01,919 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:14:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:14:02,004 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:14:02,044 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 23:14:02,044 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:14:02,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 23:14:02,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:14:02 BoogieIcfgContainer [2020-12-01 23:14:02,134 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:14:02,136 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:14:02,136 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:14:02,136 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:14:02,137 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:14:01" (3/4) ... [2020-12-01 23:14:02,141 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 23:14:02,141 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:14:02,144 INFO L168 Benchmark]: Toolchain (without parser) took 2098.45 ms. Allocated memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: 23.1 MB). Free memory was 22.9 MB in the beginning and 44.6 MB in the end (delta: -21.8 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:14:02,145 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 46.1 MB. Free memory was 29.0 MB in the beginning and 29.0 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:14:02,147 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.78 ms. Allocated memory is still 46.1 MB. Free memory was 22.7 MB in the beginning and 19.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-12-01 23:14:02,148 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.55 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 19.5 MB in the beginning and 39.4 MB in the end (delta: -19.9 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-12-01 23:14:02,149 INFO L168 Benchmark]: Boogie Preprocessor took 62.99 ms. Allocated memory is still 56.6 MB. Free memory was 39.4 MB in the beginning and 37.3 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:14:02,150 INFO L168 Benchmark]: RCFGBuilder took 741.75 ms. Allocated memory is still 56.6 MB. Free memory was 37.3 MB in the beginning and 36.9 MB in the end (delta: 408.9 kB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2020-12-01 23:14:02,151 INFO L168 Benchmark]: TraceAbstraction took 757.02 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 36.6 MB in the beginning and 45.0 MB in the end (delta: -8.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2020-12-01 23:14:02,152 INFO L168 Benchmark]: Witness Printer took 6.03 ms. Allocated memory is still 69.2 MB. Free memory was 45.0 MB in the beginning and 44.6 MB in the end (delta: 354.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:14:02,157 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 46.1 MB. Free memory was 29.0 MB in the beginning and 29.0 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 445.78 ms. Allocated memory is still 46.1 MB. Free memory was 22.7 MB in the beginning and 19.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.55 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 19.5 MB in the beginning and 39.4 MB in the end (delta: -19.9 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.99 ms. Allocated memory is still 56.6 MB. Free memory was 39.4 MB in the beginning and 37.3 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 741.75 ms. Allocated memory is still 56.6 MB. Free memory was 37.3 MB in the beginning and 36.9 MB in the end (delta: 408.9 kB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 757.02 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 36.6 MB in the beginning and 45.0 MB in the end (delta: -8.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. * Witness Printer took 6.03 ms. Allocated memory is still 69.2 MB. Free memory was 45.0 MB in the beginning and 44.6 MB in the end (delta: 354.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 160]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 143, overapproximation of someUnaryDOUBLEoperation at line 23, overapproximation of someBinaryArithmeticDOUBLEoperation at line 73, overapproximation of bitwiseAnd at line 142, overapproximation of someBinaryDOUBLEComparisonOperation at line 72. Possible FailurePath: [L19-L44] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L155] double x = 1.0 / 0.0; [L47] double y, hi, lo, c, t; [L48] __int32_t k = 0, xsb; [L49] __uint32_t hx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L52] ieee_double_shape_type gh_u; [L53] gh_u.value = (x) [L54] EXPR gh_u.parts.msw [L54] (hx) = gh_u.parts.msw [L56] xsb = (hx >> 31) & 1 [L57] hx &= 0x7fffffff VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L59] COND TRUE hx >= 0x40862E42 VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L60] COND FALSE !(hx >= 0x7ff00000) VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L72] COND TRUE x > o_threshold_exp [L73] return huge_exp * huge_exp; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L156] double res = __ieee754_exp(x); [L135] __int32_t hx, lx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L137] ieee_double_shape_type ew_u; [L138] ew_u.value = (x) [L139] EXPR ew_u.parts.msw [L139] (hx) = ew_u.parts.msw [L140] EXPR ew_u.parts.lsw [L140] (lx) = ew_u.parts.lsw [L142] hx &= 0x7fffffff [L143] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L144] hx = 0x7ff00000 - hx [L145] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L159] COND TRUE !isinf_double(x) [L160] reach_error() VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 54 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 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 0.2.0-096883e [2020-12-01 23:14:04,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:14:04,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:14:04,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 23:14:04,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 23:14:04,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 23:14:04,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 23:14:04,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 23:14:04,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 23:14:04,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 23:14:04,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 23:14:04,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 23:14:04,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:14:04,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:14:04,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:14:04,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:14:04,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:14:04,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:14:04,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:14:04,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:14:04,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:14:04,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:14:04,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:14:04,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:14:04,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 23:14:04,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 23:14:04,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 23:14:04,835 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 23:14:04,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 23:14:04,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 23:14:04,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:14:04,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:14:04,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:14:04,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:14:04,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:14:04,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:14:04,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:14:04,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:14:04,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:14:04,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:14:04,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:14:04,857 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 23:14:04,912 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:14:04,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:14:04,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:14:04,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:14:04,916 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:14:04,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:14:04,917 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:14:04,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:14:04,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:14:04,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:14:04,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:14:04,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:14:04,919 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 23:14:04,920 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 23:14:04,920 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:14:04,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:14:04,920 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:14:04,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:14:04,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:14:04,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:14:04,921 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:14:04,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:14:04,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:14:04,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:14:04,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:14:04,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:14:04,923 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 23:14:04,923 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 23:14:04,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:14:04,924 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:14:04,924 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 23:14:04,924 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78ea4619176830aa2eaba3eb142f65766ef4226b [2020-12-01 23:14:05,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:14:05,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:14:05,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:14:05,431 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:14:05,432 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:14:05,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2020-12-01 23:14:05,525 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32431c3ef/9fcf8e192b2b42559d6f617670585754/FLAG901559afd [2020-12-01 23:14:06,289 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:14:06,290 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2020-12-01 23:14:06,299 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32431c3ef/9fcf8e192b2b42559d6f617670585754/FLAG901559afd [2020-12-01 23:14:06,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32431c3ef/9fcf8e192b2b42559d6f617670585754 [2020-12-01 23:14:06,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:14:06,601 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:14:06,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:14:06,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:14:06,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:14:06,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:14:06" (1/1) ... [2020-12-01 23:14:06,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ce2a1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:06, skipping insertion in model container [2020-12-01 23:14:06,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:14:06" (1/1) ... [2020-12-01 23:14:06,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:14:06,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:14:06,874 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0834.c[4256,4269] [2020-12-01 23:14:06,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:14:06,893 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:14:06,955 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0834.c[4256,4269] [2020-12-01 23:14:06,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:14:07,005 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:14:07,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07 WrapperNode [2020-12-01 23:14:07,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:14:07,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:14:07,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:14:07,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:14:07,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2020-12-01 23:14:07,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2020-12-01 23:14:07,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:14:07,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:14:07,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:14:07,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:14:07,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2020-12-01 23:14:07,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2020-12-01 23:14:07,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2020-12-01 23:14:07,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2020-12-01 23:14:07,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2020-12-01 23:14:07,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2020-12-01 23:14:07,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2020-12-01 23:14:07,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:14:07,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:14:07,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:14:07,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:14:07,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (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 [2020-12-01 23:14:07,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-01 23:14:07,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-01 23:14:07,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 23:14:07,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:14:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-12-01 23:14:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 23:14:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:14:07,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:14:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 23:14:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:14:23,679 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:14:23,679 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-01 23:14:23,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:14:23 BoogieIcfgContainer [2020-12-01 23:14:23,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:14:23,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:14:23,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:14:23,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:14:23,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:14:06" (1/3) ... [2020-12-01 23:14:23,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ec8f8e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:14:23, skipping insertion in model container [2020-12-01 23:14:23,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (2/3) ... [2020-12-01 23:14:23,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ec8f8e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:14:23, skipping insertion in model container [2020-12-01 23:14:23,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:14:23" (3/3) ... [2020-12-01 23:14:23,691 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0834.c [2020-12-01 23:14:23,707 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:14:23,712 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:14:23,725 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:14:23,753 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:14:23,754 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:14:23,754 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:14:23,754 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:14:23,754 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:14:23,754 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:14:23,754 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:14:23,754 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:14:23,768 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-12-01 23:14:23,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 23:14:23,775 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:14:23,776 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:14:23,776 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:14:23,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:14:23,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1546239330, now seen corresponding path program 1 times [2020-12-01 23:14:23,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:14:23,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807516264] [2020-12-01 23:14:23,798 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 [2020-12-01 23:14:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:14:24,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 23:14:24,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:14:24,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:14:24,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:14:24,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:14:24,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807516264] [2020-12-01 23:14:24,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:14:24,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 23:14:24,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728409397] [2020-12-01 23:14:24,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:14:24,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:14:24,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:14:24,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:14:24,492 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-12-01 23:14:24,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:14:24,516 INFO L93 Difference]: Finished difference Result 84 states and 136 transitions. [2020-12-01 23:14:24,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:14:24,517 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-12-01 23:14:24,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:14:24,529 INFO L225 Difference]: With dead ends: 84 [2020-12-01 23:14:24,529 INFO L226 Difference]: Without dead ends: 40 [2020-12-01 23:14:24,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:14:24,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-12-01 23:14:24,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-12-01 23:14:24,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-12-01 23:14:24,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2020-12-01 23:14:24,574 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 13 [2020-12-01 23:14:24,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:14:24,574 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2020-12-01 23:14:24,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:14:24,575 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-12-01 23:14:24,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 23:14:24,576 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:14:24,576 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:14:24,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 23:14:24,790 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:14:24,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:14:24,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1188959094, now seen corresponding path program 1 times [2020-12-01 23:14:24,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:14:24,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868511919] [2020-12-01 23:14:24,794 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 [2020-12-01 23:14:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:14:25,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 23:14:25,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:14:25,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:14:25,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:14:26,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:14:26,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868511919] [2020-12-01 23:14:26,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:14:26,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2020-12-01 23:14:26,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3313153] [2020-12-01 23:14:26,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 23:14:26,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:14:26,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 23:14:26,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 23:14:26,286 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 7 states. [2020-12-01 23:14:26,469 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-01 23:14:26,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:14:26,750 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2020-12-01 23:14:26,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 23:14:26,751 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-12-01 23:14:26,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:14:26,752 INFO L225 Difference]: With dead ends: 48 [2020-12-01 23:14:26,752 INFO L226 Difference]: Without dead ends: 20 [2020-12-01 23:14:26,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-01 23:14:26,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-12-01 23:14:26,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-12-01 23:14:26,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-01 23:14:26,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-12-01 23:14:26,762 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 15 [2020-12-01 23:14:26,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:14:26,764 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-12-01 23:14:26,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 23:14:26,765 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-12-01 23:14:26,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 23:14:26,766 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:14:26,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:14:26,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 23:14:26,978 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:14:26,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:14:26,980 INFO L82 PathProgramCache]: Analyzing trace with hash 968811170, now seen corresponding path program 1 times [2020-12-01 23:14:26,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:14:26,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107247457] [2020-12-01 23:14:26,981 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 [2020-12-01 23:14:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:14:27,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 23:14:27,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:14:27,781 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-01 23:14:28,037 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2020-12-01 23:14:28,076 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-01 23:14:28,108 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 23:14:28,108 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-01 23:14:28,250 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-01 23:14:28,251 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 23:14:28,256 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-01 23:14:28,257 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:49, output treesize:38 [2020-12-01 23:14:28,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:14:28,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:14:28,644 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2020-12-01 23:14:28,678 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-01 23:14:28,709 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 23:14:28,710 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-01 23:14:28,800 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 23:14:28,803 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-01 23:14:28,803 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2020-12-01 23:14:29,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:14:29,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107247457] [2020-12-01 23:14:29,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:14:29,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-12-01 23:14:29,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634330588] [2020-12-01 23:14:29,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 23:14:29,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:14:29,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 23:14:29,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-12-01 23:14:29,348 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 8 states. [2020-12-01 23:14:29,933 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2020-12-01 23:14:29,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:14:29,985 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2020-12-01 23:14:29,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 23:14:29,988 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-12-01 23:14:29,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:14:29,989 INFO L225 Difference]: With dead ends: 28 [2020-12-01 23:14:29,989 INFO L226 Difference]: Without dead ends: 20 [2020-12-01 23:14:29,989 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-12-01 23:14:29,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-12-01 23:14:29,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-12-01 23:14:29,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-01 23:14:29,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-12-01 23:14:29,994 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2020-12-01 23:14:29,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:14:29,995 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-12-01 23:14:29,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 23:14:29,995 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-12-01 23:14:29,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 23:14:29,995 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:14:29,995 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:14:30,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 23:14:30,197 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:14:30,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:14:30,198 INFO L82 PathProgramCache]: Analyzing trace with hash -2079354756, now seen corresponding path program 1 times [2020-12-01 23:14:30,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:14:30,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499977960] [2020-12-01 23:14:30,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-01 23:14:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:14:30,754 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:14:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:14:31,393 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:14:31,574 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-01 23:14:31,579 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:14:31,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-01 23:14:31,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:14:31 BoogieIcfgContainer [2020-12-01 23:14:31,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:14:31,937 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:14:31,937 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:14:31,938 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:14:31,938 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:14:23" (3/4) ... [2020-12-01 23:14:31,941 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 23:14:32,070 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-01 23:14:32,070 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:14:32,072 INFO L168 Benchmark]: Toolchain (without parser) took 25471.01 ms. Allocated memory was 37.7 MB in the beginning and 56.6 MB in the end (delta: 18.9 MB). Free memory was 22.1 MB in the beginning and 30.4 MB in the end (delta: -8.3 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2020-12-01 23:14:32,072 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 37.7 MB. Free memory was 25.1 MB in the beginning and 25.1 MB in the end (delta: 32.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:14:32,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 406.81 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 21.9 MB in the beginning and 24.7 MB in the end (delta: -2.8 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2020-12-01 23:14:32,073 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.26 ms. Allocated memory is still 46.1 MB. Free memory was 24.7 MB in the beginning and 22.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:14:32,074 INFO L168 Benchmark]: Boogie Preprocessor took 121.51 ms. Allocated memory is still 46.1 MB. Free memory was 22.4 MB in the beginning and 29.4 MB in the end (delta: -7.0 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-12-01 23:14:32,075 INFO L168 Benchmark]: RCFGBuilder took 16436.51 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 29.4 MB in the beginning and 38.2 MB in the end (delta: -8.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 23:14:32,075 INFO L168 Benchmark]: TraceAbstraction took 8253.17 ms. Allocated memory is still 56.6 MB. Free memory was 38.0 MB in the beginning and 36.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2020-12-01 23:14:32,075 INFO L168 Benchmark]: Witness Printer took 133.57 ms. Allocated memory is still 56.6 MB. Free memory was 36.3 MB in the beginning and 30.4 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 23:14:32,078 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 37.7 MB. Free memory was 25.1 MB in the beginning and 25.1 MB in the end (delta: 32.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 406.81 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 21.9 MB in the beginning and 24.7 MB in the end (delta: -2.8 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.26 ms. Allocated memory is still 46.1 MB. Free memory was 24.7 MB in the beginning and 22.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 121.51 ms. Allocated memory is still 46.1 MB. Free memory was 22.4 MB in the beginning and 29.4 MB in the end (delta: -7.0 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 16436.51 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 29.4 MB in the beginning and 38.2 MB in the end (delta: -8.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8253.17 ms. Allocated memory is still 56.6 MB. Free memory was 38.0 MB in the beginning and 36.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. * Witness Printer took 133.57 ms. Allocated memory is still 56.6 MB. Free memory was 36.3 MB in the beginning and 30.4 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 160]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19-L44] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L155] double x = 1.0 / 0.0; [L47] double y, hi, lo, c, t; [L48] __int32_t k = 0, xsb; [L49] __uint32_t hx; VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L52] ieee_double_shape_type gh_u; [L53] gh_u.value = (x) [L54] EXPR gh_u.parts.msw [L54] (hx) = gh_u.parts.msw [L56] xsb = (hx >> 31) & 1 [L57] hx &= 0x7fffffff VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L59] COND TRUE hx >= 0x40862E42 VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L60] COND TRUE hx >= 0x7ff00000 [L61] __uint32_t lx; VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L63] ieee_double_shape_type gl_u; [L64] gl_u.value = (x) [L65] EXPR gl_u.parts.lsw [L65] (lx) = gl_u.parts.lsw [L67] COND FALSE !(((hx & 0xfffff) | lx) != 0) VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L70] EXPR (xsb == 0) ? x : 0.0 VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L70] return (xsb == 0) ? x : 0.0; [L156] double res = __ieee754_exp(x); [L135] __int32_t hx, lx; VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L137] ieee_double_shape_type ew_u; [L138] ew_u.value = (x) [L139] EXPR ew_u.parts.msw [L139] (hx) = ew_u.parts.msw [L140] EXPR ew_u.parts.lsw [L140] (lx) = ew_u.parts.lsw [L142] hx &= 0x7fffffff [L143] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L144] hx = 0x7ff00000 - hx [L145] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L159] COND TRUE !isinf_double(x) [L160] reach_error() VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 109 SDslu, 9 SDs, 0 SdLazy, 28 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 70 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 20 QuantifiedInterpolants, 8230 SizeOfPredicates, 16 NumberOfNonLiveVariables, 306 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...