./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1121a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3e5ce664 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1121a.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 b1ef2080ffd97f82ac51854e7d9813eba864fd0a ............................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1121a.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 b1ef2080ffd97f82ac51854e7d9813eba864fd0a .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-3e5ce66 [2020-12-02 21:37:18,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 21:37:18,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 21:37:18,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 21:37:18,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 21:37:18,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 21:37:18,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 21:37:18,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 21:37:18,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 21:37:18,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 21:37:18,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 21:37:18,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 21:37:18,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 21:37:18,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 21:37:18,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 21:37:18,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 21:37:18,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 21:37:18,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 21:37:18,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 21:37:18,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 21:37:18,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 21:37:18,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 21:37:18,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 21:37:18,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 21:37:18,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 21:37:18,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 21:37:18,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 21:37:18,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 21:37:18,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 21:37:18,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 21:37:18,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 21:37:18,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 21:37:18,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 21:37:18,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 21:37:18,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 21:37:18,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 21:37:18,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 21:37:18,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 21:37:18,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 21:37:18,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 21:37:18,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 21:37:18,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 21:37:18,737 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 21:37:18,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 21:37:18,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 21:37:18,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 21:37:18,739 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 21:37:18,740 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 21:37:18,740 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 21:37:18,740 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 21:37:18,741 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 21:37:18,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 21:37:18,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 21:37:18,742 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 21:37:18,742 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 21:37:18,742 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 21:37:18,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 21:37:18,743 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 21:37:18,743 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 21:37:18,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 21:37:18,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 21:37:18,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 21:37:18,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 21:37:18,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 21:37:18,745 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 21:37:18,745 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 21:37:18,745 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 21:37:18,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 21:37:18,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 21:37:18,746 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 21:37:18,746 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1ef2080ffd97f82ac51854e7d9813eba864fd0a [2020-12-02 21:37:19,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 21:37:19,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 21:37:19,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 21:37:19,266 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 21:37:19,267 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 21:37:19,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1121a.c [2020-12-02 21:37:19,364 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4580cf3b7/3dad52318ff845849590d65eafd02509/FLAG94bec3fba [2020-12-02 21:37:20,091 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 21:37:20,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1121a.c [2020-12-02 21:37:20,106 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4580cf3b7/3dad52318ff845849590d65eafd02509/FLAG94bec3fba [2020-12-02 21:37:20,398 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4580cf3b7/3dad52318ff845849590d65eafd02509 [2020-12-02 21:37:20,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 21:37:20,404 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 21:37:20,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 21:37:20,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 21:37:20,410 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 21:37:20,411 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:37:20" (1/1) ... [2020-12-02 21:37:20,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b13cdb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:20, skipping insertion in model container [2020-12-02 21:37:20,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:37:20" (1/1) ... [2020-12-02 21:37:20,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 21:37:20,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-02 21:37:20,716 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1121a.c[3883,3896] [2020-12-02 21:37:20,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 21:37:20,743 INFO L203 MainTranslator]: Completed pre-run [2020-12-02 21:37:20,795 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1121a.c[3883,3896] [2020-12-02 21:37:20,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 21:37:20,818 INFO L208 MainTranslator]: Completed translation [2020-12-02 21:37:20,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:20 WrapperNode [2020-12-02 21:37:20,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 21:37:20,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 21:37:20,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 21:37:20,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 21:37:20,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:20" (1/1) ... [2020-12-02 21:37:20,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:20" (1/1) ... [2020-12-02 21:37:20,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 21:37:20,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 21:37:20,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 21:37:20,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 21:37:20,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:20" (1/1) ... [2020-12-02 21:37:20,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:20" (1/1) ... [2020-12-02 21:37:20,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:20" (1/1) ... [2020-12-02 21:37:20,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:20" (1/1) ... [2020-12-02 21:37:20,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:20" (1/1) ... [2020-12-02 21:37:20,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:20" (1/1) ... [2020-12-02 21:37:20,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:20" (1/1) ... [2020-12-02 21:37:20,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 21:37:20,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 21:37:20,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 21:37:20,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 21:37:20,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 21:37:21,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 21:37:21,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 21:37:21,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 21:37:21,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-02 21:37:21,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-02 21:37:21,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 21:37:21,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 21:37:21,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-02 21:37:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-02 21:37:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 21:37:21,630 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 21:37:21,631 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-02 21:37:21,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:37:21 BoogieIcfgContainer [2020-12-02 21:37:21,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 21:37:21,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 21:37:21,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 21:37:21,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 21:37:21,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:37:20" (1/3) ... [2020-12-02 21:37:21,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b752299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:37:21, skipping insertion in model container [2020-12-02 21:37:21,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:20" (2/3) ... [2020-12-02 21:37:21,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b752299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:37:21, skipping insertion in model container [2020-12-02 21:37:21,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:37:21" (3/3) ... [2020-12-02 21:37:21,643 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121a.c [2020-12-02 21:37:21,675 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 21:37:21,681 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 21:37:21,702 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 21:37:21,758 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 21:37:21,758 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 21:37:21,758 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 21:37:21,758 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 21:37:21,758 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 21:37:21,759 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 21:37:21,759 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 21:37:21,760 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 21:37:21,783 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-12-02 21:37:21,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 21:37:21,791 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:37:21,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 21:37:21,792 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:37:21,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:37:21,801 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-12-02 21:37:21,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 21:37:21,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525131910] [2020-12-02 21:37:21,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 21:37:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:37:21,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:37:21,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525131910] [2020-12-02 21:37:21,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:37:21,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 21:37:21,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25987510] [2020-12-02 21:37:21,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 21:37:21,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 21:37:22,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 21:37:22,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 21:37:22,017 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2020-12-02 21:37:22,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:37:22,049 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2020-12-02 21:37:22,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 21:37:22,050 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-02 21:37:22,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:37:22,064 INFO L225 Difference]: With dead ends: 108 [2020-12-02 21:37:22,064 INFO L226 Difference]: Without dead ends: 52 [2020-12-02 21:37:22,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 21:37:22,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-02 21:37:22,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-02 21:37:22,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-02 21:37:22,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-12-02 21:37:22,124 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-12-02 21:37:22,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:37:22,125 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-12-02 21:37:22,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 21:37:22,125 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-12-02 21:37:22,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 21:37:22,126 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:37:22,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 21:37:22,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 21:37:22,127 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:37:22,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:37:22,128 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-12-02 21:37:22,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 21:37:22,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268224622] [2020-12-02 21:37:22,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 21:37:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 21:37:22,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 21:37:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 21:37:22,305 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 21:37:22,344 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 21:37:22,344 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 21:37:22,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 21:37:22,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 09:37:22 BoogieIcfgContainer [2020-12-02 21:37:22,407 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 21:37:22,409 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 21:37:22,409 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 21:37:22,410 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 21:37:22,411 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:37:21" (3/4) ... [2020-12-02 21:37:22,415 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 21:37:22,415 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 21:37:22,420 INFO L168 Benchmark]: Toolchain (without parser) took 2013.32 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.7 MB in the beginning and 26.5 MB in the end (delta: -3.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-12-02 21:37:22,423 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 46.1 MB. Free memory was 25.9 MB in the beginning and 25.9 MB in the end (delta: 39.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 21:37:22,425 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.64 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.4 MB in the beginning and 31.1 MB in the end (delta: -8.6 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-12-02 21:37:22,426 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.40 ms. Allocated memory is still 56.6 MB. Free memory was 31.1 MB in the beginning and 28.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 21:37:22,426 INFO L168 Benchmark]: Boogie Preprocessor took 51.08 ms. Allocated memory is still 56.6 MB. Free memory was 28.7 MB in the beginning and 26.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 21:37:22,428 INFO L168 Benchmark]: RCFGBuilder took 695.63 ms. Allocated memory is still 56.6 MB. Free memory was 26.6 MB in the beginning and 24.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-12-02 21:37:22,430 INFO L168 Benchmark]: TraceAbstraction took 772.72 ms. Allocated memory is still 56.6 MB. Free memory was 24.1 MB in the beginning and 26.8 MB in the end (delta: -2.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 21:37:22,432 INFO L168 Benchmark]: Witness Printer took 6.33 ms. Allocated memory is still 56.6 MB. Free memory was 26.8 MB in the beginning and 26.5 MB in the end (delta: 301.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 21:37:22,448 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 46.1 MB. Free memory was 25.9 MB in the beginning and 25.9 MB in the end (delta: 39.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 413.64 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.4 MB in the beginning and 31.1 MB in the end (delta: -8.6 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.40 ms. Allocated memory is still 56.6 MB. Free memory was 31.1 MB in the beginning and 28.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.08 ms. Allocated memory is still 56.6 MB. Free memory was 28.7 MB in the beginning and 26.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 695.63 ms. Allocated memory is still 56.6 MB. Free memory was 26.6 MB in the beginning and 24.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 772.72 ms. Allocated memory is still 56.6 MB. Free memory was 24.1 MB in the beginning and 26.8 MB in the end (delta: -2.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.33 ms. Allocated memory is still 56.6 MB. Free memory was 26.8 MB in the beginning and 26.5 MB in the end (delta: 301.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 177]: 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 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={9:0}] [L171] double x = __VERIFIER_nondet_double(); [L172] double y = 0.0; [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={9:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L173] double res = fmod_double(x, y); [L18] return x != x; VAL [one_fmod=1, Zero_fmod={9:0}] [L176] COND TRUE !isnan_double(res) [L177] reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 81 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-3e5ce66 [2020-12-02 21:37:25,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 21:37:25,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 21:37:25,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 21:37:25,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 21:37:25,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 21:37:25,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 21:37:25,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 21:37:25,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 21:37:25,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 21:37:25,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 21:37:25,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 21:37:25,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 21:37:25,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 21:37:25,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 21:37:25,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 21:37:25,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 21:37:25,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 21:37:25,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 21:37:25,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 21:37:25,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 21:37:25,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 21:37:25,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 21:37:25,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 21:37:25,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 21:37:25,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 21:37:25,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 21:37:25,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 21:37:25,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 21:37:25,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 21:37:25,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 21:37:25,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 21:37:25,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 21:37:25,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 21:37:25,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 21:37:25,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 21:37:25,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 21:37:25,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 21:37:25,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 21:37:25,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 21:37:25,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 21:37:25,385 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 21:37:25,421 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 21:37:25,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 21:37:25,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 21:37:25,423 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 21:37:25,424 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 21:37:25,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 21:37:25,424 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 21:37:25,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 21:37:25,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 21:37:25,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 21:37:25,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 21:37:25,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 21:37:25,426 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 21:37:25,426 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 21:37:25,426 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 21:37:25,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 21:37:25,427 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 21:37:25,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 21:37:25,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 21:37:25,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 21:37:25,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 21:37:25,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 21:37:25,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 21:37:25,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 21:37:25,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 21:37:25,429 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 21:37:25,429 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-02 21:37:25,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 21:37:25,430 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 21:37:25,430 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 21:37:25,430 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1ef2080ffd97f82ac51854e7d9813eba864fd0a [2020-12-02 21:37:25,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 21:37:25,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 21:37:25,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 21:37:25,897 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 21:37:25,899 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 21:37:25,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1121a.c [2020-12-02 21:37:25,999 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04dccc816/97f4d9f72993442b806f77cfcce37c08/FLAGcfc478fdb [2020-12-02 21:37:26,771 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 21:37:26,772 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1121a.c [2020-12-02 21:37:26,791 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04dccc816/97f4d9f72993442b806f77cfcce37c08/FLAGcfc478fdb [2020-12-02 21:37:27,121 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04dccc816/97f4d9f72993442b806f77cfcce37c08 [2020-12-02 21:37:27,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 21:37:27,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 21:37:27,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 21:37:27,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 21:37:27,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 21:37:27,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:37:27" (1/1) ... [2020-12-02 21:37:27,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@96f5101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:27, skipping insertion in model container [2020-12-02 21:37:27,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:37:27" (1/1) ... [2020-12-02 21:37:27,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 21:37:27,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-02 21:37:27,465 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1121a.c[3883,3896] [2020-12-02 21:37:27,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 21:37:27,498 INFO L203 MainTranslator]: Completed pre-run [2020-12-02 21:37:27,610 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1121a.c[3883,3896] [2020-12-02 21:37:27,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 21:37:27,636 INFO L208 MainTranslator]: Completed translation [2020-12-02 21:37:27,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:27 WrapperNode [2020-12-02 21:37:27,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 21:37:27,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 21:37:27,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 21:37:27,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 21:37:27,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:27" (1/1) ... [2020-12-02 21:37:27,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:27" (1/1) ... [2020-12-02 21:37:27,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 21:37:27,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 21:37:27,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 21:37:27,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 21:37:27,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:27" (1/1) ... [2020-12-02 21:37:27,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:27" (1/1) ... [2020-12-02 21:37:27,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:27" (1/1) ... [2020-12-02 21:37:27,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:27" (1/1) ... [2020-12-02 21:37:27,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:27" (1/1) ... [2020-12-02 21:37:27,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:27" (1/1) ... [2020-12-02 21:37:27,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:27" (1/1) ... [2020-12-02 21:37:27,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 21:37:27,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 21:37:27,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 21:37:27,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 21:37:27,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 21:37:27,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-02 21:37:27,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-02 21:37:27,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 21:37:27,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 21:37:27,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-12-02 21:37:27,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 21:37:27,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 21:37:27,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 21:37:27,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 21:37:27,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 21:37:33,626 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 21:37:33,626 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-02 21:37:33,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:37:33 BoogieIcfgContainer [2020-12-02 21:37:33,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 21:37:33,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 21:37:33,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 21:37:33,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 21:37:33,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:37:27" (1/3) ... [2020-12-02 21:37:33,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24fc29c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:37:33, skipping insertion in model container [2020-12-02 21:37:33,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:37:27" (2/3) ... [2020-12-02 21:37:33,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24fc29c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:37:33, skipping insertion in model container [2020-12-02 21:37:33,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:37:33" (3/3) ... [2020-12-02 21:37:33,639 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121a.c [2020-12-02 21:37:33,657 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 21:37:33,662 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 21:37:33,677 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 21:37:33,712 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 21:37:33,712 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 21:37:33,712 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 21:37:33,712 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 21:37:33,713 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 21:37:33,713 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 21:37:33,713 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 21:37:33,713 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 21:37:33,731 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-12-02 21:37:33,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 21:37:33,738 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:37:33,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 21:37:33,744 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:37:33,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:37:33,752 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-12-02 21:37:33,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 21:37:33,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474370827] [2020-12-02 21:37:33,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-02 21:37:35,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:37:35,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 21:37:35,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 21:37:35,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:37:35,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 21:37:35,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:37:35,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474370827] [2020-12-02 21:37:35,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:37:35,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 21:37:35,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948226562] [2020-12-02 21:37:35,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 21:37:35,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 21:37:35,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 21:37:35,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 21:37:35,262 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2020-12-02 21:37:35,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:37:35,289 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2020-12-02 21:37:35,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 21:37:35,291 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-02 21:37:35,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:37:35,302 INFO L225 Difference]: With dead ends: 108 [2020-12-02 21:37:35,302 INFO L226 Difference]: Without dead ends: 52 [2020-12-02 21:37:35,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 21:37:35,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-02 21:37:35,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-02 21:37:35,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-02 21:37:35,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-12-02 21:37:35,345 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-12-02 21:37:35,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:37:35,346 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-12-02 21:37:35,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 21:37:35,346 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-12-02 21:37:35,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 21:37:35,347 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:37:35,347 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 21:37:35,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 21:37:35,563 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:37:35,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:37:35,565 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-12-02 21:37:35,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 21:37:35,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482278512] [2020-12-02 21:37:35,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-02 21:37:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:37:36,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-02 21:37:36,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 21:37:48,336 WARN L197 SmtUtils]: Spent 2.59 s on a formula simplification that was a NOOP. DAG size: 8 [2020-12-02 21:38:06,657 WARN L197 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 12 DAG size of output: 3 [2020-12-02 21:38:09,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:38:09,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 21:38:20,289 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2020-12-02 21:38:22,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:38:22,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482278512] [2020-12-02 21:38:22,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:38:22,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-12-02 21:38:22,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676771855] [2020-12-02 21:38:22,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-02 21:38:22,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 21:38:22,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-02 21:38:22,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=63, Unknown=7, NotChecked=16, Total=110 [2020-12-02 21:38:22,008 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 11 states. [2020-12-02 21:38:25,412 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven) (= c_ULTIMATE.start_fmod_double_~y (_ +zero 11 53))) is different from true [2020-12-02 21:38:58,628 WARN L197 SmtUtils]: Spent 19.35 s on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2020-12-02 21:39:03,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:39:03,771 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2020-12-02 21:39:03,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 21:39:03,801 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-12-02 21:39:03,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:39:03,803 INFO L225 Difference]: With dead ends: 57 [2020-12-02 21:39:03,803 INFO L226 Difference]: Without dead ends: 52 [2020-12-02 21:39:03,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 76.3s TimeCoverageRelationStatistics Valid=32, Invalid=75, Unknown=11, NotChecked=38, Total=156 [2020-12-02 21:39:03,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-02 21:39:03,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-02 21:39:03,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-02 21:39:03,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2020-12-02 21:39:03,812 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2020-12-02 21:39:03,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:39:03,813 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-12-02 21:39:03,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-02 21:39:03,813 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2020-12-02 21:39:03,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-02 21:39:03,814 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:39:03,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 21:39:04,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 21:39:04,022 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:39:04,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:39:04,024 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2020-12-02 21:39:04,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 21:39:04,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649936098] [2020-12-02 21:39:04,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-02 21:39:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:39:04,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-02 21:39:04,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 21:39:04,324 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 [2020-12-02 21:39:04,359 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-02 21:39:04,388 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:39:04,388 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-02 21:39:04,498 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-02 21:39:04,498 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:39:04,501 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. [2020-12-02 21:39:04,501 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:18 [2020-12-02 21:39:04,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:39:04,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 21:39:05,154 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 20 treesize of output 18 [2020-12-02 21:39:05,187 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-02 21:39:05,216 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:39:05,217 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-02 21:39:05,306 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:39:05,308 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. [2020-12-02 21:39:05,309 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:31, output treesize:20 [2020-12-02 21:39:05,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:39:05,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649936098] [2020-12-02 21:39:05,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:39:05,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2020-12-02 21:39:05,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299381751] [2020-12-02 21:39:05,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-02 21:39:05,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 21:39:05,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-02 21:39:05,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-02 21:39:05,518 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand 7 states. [2020-12-02 21:39:05,779 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 18 [2020-12-02 21:39:05,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:39:05,800 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2020-12-02 21:39:05,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 21:39:05,801 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-12-02 21:39:05,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:39:05,801 INFO L225 Difference]: With dead ends: 52 [2020-12-02 21:39:05,801 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 21:39:05,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-12-02 21:39:05,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 21:39:05,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 21:39:05,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 21:39:05,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 21:39:05,803 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-12-02 21:39:05,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:39:05,803 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 21:39:05,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-02 21:39:05,804 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 21:39:05,804 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 21:39:06,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 21:39:06,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-02 21:39:10,466 WARN L197 SmtUtils]: Spent 4.39 s on a formula simplification. DAG size of input: 13 DAG size of output: 7 [2020-12-02 21:39:19,948 WARN L197 SmtUtils]: Spent 9.38 s on a formula simplification that was a NOOP. DAG size: 12 [2020-12-02 21:39:19,975 INFO L262 CegarLoopResult]: For program point L35-2(lines 35 40) no Hoare annotation was computed. [2020-12-02 21:39:19,976 INFO L258 CegarLoopResult]: At program point L68-3(lines 68 69) the Hoare annotation is: false [2020-12-02 21:39:19,976 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-02 21:39:19,976 INFO L262 CegarLoopResult]: For program point L136-1(lines 136 141) no Hoare annotation was computed. [2020-12-02 21:39:19,976 INFO L262 CegarLoopResult]: For program point L103-1(lines 103 117) no Hoare annotation was computed. [2020-12-02 21:39:19,976 INFO L258 CegarLoopResult]: At program point L136-2(lines 136 141) the Hoare annotation is: false [2020-12-02 21:39:19,976 INFO L262 CegarLoopResult]: For program point L103-3(lines 103 117) no Hoare annotation was computed. [2020-12-02 21:39:19,976 INFO L262 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2020-12-02 21:39:19,977 INFO L262 CegarLoopResult]: For program point L120-2(lines 25 163) no Hoare annotation was computed. [2020-12-02 21:39:19,977 INFO L262 CegarLoopResult]: For program point L71-2(lines 71 72) no Hoare annotation was computed. [2020-12-02 21:39:19,977 INFO L258 CegarLoopResult]: At program point L71-3(lines 71 72) the Hoare annotation is: false [2020-12-02 21:39:19,978 INFO L262 CegarLoopResult]: For program point L154(lines 154 159) no Hoare annotation was computed. [2020-12-02 21:39:19,978 INFO L262 CegarLoopResult]: For program point L154-1(lines 142 161) no Hoare annotation was computed. [2020-12-02 21:39:19,978 INFO L262 CegarLoopResult]: For program point L154-2(lines 154 159) no Hoare annotation was computed. [2020-12-02 21:39:19,978 INFO L262 CegarLoopResult]: For program point L55(lines 25 163) no Hoare annotation was computed. [2020-12-02 21:39:19,978 INFO L262 CegarLoopResult]: For program point L122-1(lines 25 163) no Hoare annotation was computed. [2020-12-02 21:39:19,978 INFO L262 CegarLoopResult]: For program point L56(lines 56 62) no Hoare annotation was computed. [2020-12-02 21:39:19,978 INFO L262 CegarLoopResult]: For program point L106(lines 106 107) no Hoare annotation was computed. [2020-12-02 21:39:19,979 INFO L262 CegarLoopResult]: For program point L106-2(lines 103 117) no Hoare annotation was computed. [2020-12-02 21:39:19,979 INFO L262 CegarLoopResult]: For program point L57-2(lines 57 58) no Hoare annotation was computed. [2020-12-02 21:39:19,979 INFO L258 CegarLoopResult]: At program point L57-3(lines 57 58) the Hoare annotation is: false [2020-12-02 21:39:19,979 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-02 21:39:19,979 INFO L258 CegarLoopResult]: At program point L108-1(lines 103 117) the Hoare annotation is: false [2020-12-02 21:39:19,979 INFO L262 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2020-12-02 21:39:19,979 INFO L262 CegarLoopResult]: For program point L93-2(lines 89 100) no Hoare annotation was computed. [2020-12-02 21:39:19,979 INFO L262 CegarLoopResult]: For program point L60-2(lines 60 61) no Hoare annotation was computed. [2020-12-02 21:39:19,980 INFO L258 CegarLoopResult]: At program point L60-3(lines 60 61) the Hoare annotation is: false [2020-12-02 21:39:19,980 INFO L262 CegarLoopResult]: For program point L176(lines 176 179) no Hoare annotation was computed. [2020-12-02 21:39:19,980 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-02 21:39:19,980 INFO L262 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-12-02 21:39:19,981 INFO L262 CegarLoopResult]: For program point L144(lines 144 153) no Hoare annotation was computed. [2020-12-02 21:39:19,981 INFO L262 CegarLoopResult]: For program point L45(lines 45 47) no Hoare annotation was computed. [2020-12-02 21:39:19,981 INFO L262 CegarLoopResult]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2020-12-02 21:39:19,982 INFO L258 CegarLoopResult]: At program point L29-2(lines 29 34) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_double_~y (_ +zero 11 53))) [2020-12-02 21:39:19,982 INFO L262 CegarLoopResult]: For program point L112(lines 112 113) no Hoare annotation was computed. [2020-12-02 21:39:19,982 INFO L258 CegarLoopResult]: At program point L162(lines 25 163) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_fmod_double_#res| |ULTIMATE.start_fmod_double_#res|)) [2020-12-02 21:39:19,982 INFO L258 CegarLoopResult]: At program point L129-2(lines 129 133) the Hoare annotation is: false [2020-12-02 21:39:19,982 INFO L262 CegarLoopResult]: For program point L129-3(lines 25 163) no Hoare annotation was computed. [2020-12-02 21:39:19,983 INFO L262 CegarLoopResult]: For program point L147(lines 147 153) no Hoare annotation was computed. [2020-12-02 21:39:19,983 INFO L262 CegarLoopResult]: For program point L81(lines 81 87) no Hoare annotation was computed. [2020-12-02 21:39:19,983 INFO L262 CegarLoopResult]: For program point L48(lines 48 53) no Hoare annotation was computed. [2020-12-02 21:39:19,983 INFO L262 CegarLoopResult]: For program point L81-2(lines 25 163) no Hoare annotation was computed. [2020-12-02 21:39:19,983 INFO L262 CegarLoopResult]: For program point L48-2(lines 25 163) no Hoare annotation was computed. [2020-12-02 21:39:19,984 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-02 21:39:19,984 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2020-12-02 21:39:19,984 INFO L265 CegarLoopResult]: At program point L181(lines 165 182) the Hoare annotation is: true [2020-12-02 21:39:19,984 INFO L262 CegarLoopResult]: For program point L49(lines 49 50) no Hoare annotation was computed. [2020-12-02 21:39:19,985 INFO L262 CegarLoopResult]: For program point L66(lines 25 163) no Hoare annotation was computed. [2020-12-02 21:39:19,985 INFO L262 CegarLoopResult]: For program point L67(lines 67 73) no Hoare annotation was computed. [2020-12-02 21:39:19,985 INFO L262 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2020-12-02 21:39:19,985 INFO L258 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= |ULTIMATE.start_fmod_double_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (_ +zero 11 53)))) (fp.div roundNearestTiesToEven .cse0 .cse0))))) [2020-12-02 21:39:19,986 INFO L262 CegarLoopResult]: For program point L134(lines 134 161) no Hoare annotation was computed. [2020-12-02 21:39:19,986 INFO L262 CegarLoopResult]: For program point L35(lines 35 40) no Hoare annotation was computed. [2020-12-02 21:39:19,986 INFO L262 CegarLoopResult]: For program point L35-1(lines 25 163) no Hoare annotation was computed. [2020-12-02 21:39:19,986 INFO L262 CegarLoopResult]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2020-12-02 21:39:19,999 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:39:20,002 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:39:20,004 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:39:20,005 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:39:20,005 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-02 21:39:20,005 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:39:20,006 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-02 21:39:20,007 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:39:20,007 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:39:20,007 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-02 21:39:20,007 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:39:20,008 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-02 21:39:20,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 09:39:20 BoogieIcfgContainer [2020-12-02 21:39:20,010 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 21:39:20,011 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 21:39:20,011 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 21:39:20,012 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 21:39:20,012 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:37:33" (3/4) ... [2020-12-02 21:39:20,016 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 21:39:20,030 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-02 21:39:20,030 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-02 21:39:20,030 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 21:39:20,031 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 21:39:20,075 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 21:39:20,076 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 21:39:20,077 INFO L168 Benchmark]: Toolchain (without parser) took 112947.70 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 29.6 MB in the beginning and 36.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2020-12-02 21:39:20,078 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 39.8 MB. Free memory was 18.1 MB in the beginning and 18.1 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 21:39:20,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 502.44 ms. Allocated memory is still 52.4 MB. Free memory was 29.4 MB in the beginning and 26.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-12-02 21:39:20,080 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.63 ms. Allocated memory is still 52.4 MB. Free memory was 26.5 MB in the beginning and 24.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 21:39:20,080 INFO L168 Benchmark]: Boogie Preprocessor took 101.79 ms. Allocated memory is still 52.4 MB. Free memory was 24.3 MB in the beginning and 35.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-12-02 21:39:20,081 INFO L168 Benchmark]: RCFGBuilder took 5826.41 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 35.5 MB in the beginning and 42.6 MB in the end (delta: -7.1 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2020-12-02 21:39:20,082 INFO L168 Benchmark]: TraceAbstraction took 106380.11 ms. Allocated memory is still 62.9 MB. Free memory was 42.3 MB in the beginning and 38.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. [2020-12-02 21:39:20,083 INFO L168 Benchmark]: Witness Printer took 64.93 ms. Allocated memory is still 62.9 MB. Free memory was 38.6 MB in the beginning and 36.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 21:39:20,087 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 39.8 MB. Free memory was 18.1 MB in the beginning and 18.1 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 502.44 ms. Allocated memory is still 52.4 MB. Free memory was 29.4 MB in the beginning and 26.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.63 ms. Allocated memory is still 52.4 MB. Free memory was 26.5 MB in the beginning and 24.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 101.79 ms. Allocated memory is still 52.4 MB. Free memory was 24.3 MB in the beginning and 35.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5826.41 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 35.5 MB in the beginning and 42.6 MB in the end (delta: -7.1 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 106380.11 ms. Allocated memory is still 62.9 MB. Free memory was 42.3 MB in the beginning and 38.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. * Witness Printer took 64.93 ms. Allocated memory is still 62.9 MB. Free memory was 38.6 MB in the beginning and 36.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 177]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant [2020-12-02 21:39:20,100 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:39:20,100 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && y == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 18]: Loop Invariant [2020-12-02 21:39:20,102 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:39:20,102 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:39:20,103 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-02 21:39:20,103 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:39:20,103 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-02 21:39:20,104 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:39:20,104 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:39:20,104 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-02 21:39:20,104 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:39:20,104 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] Derived loop invariant: 1bv32 == \result && (\exists ULTIMATE.start_fmod_double_~x : C_DOUBLE :: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~Pluszero~LONGDOUBLE()), ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~Pluszero~LONGDOUBLE()))) - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 92.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 42.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 13.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 160 SDtfs, 5 SDslu, 342 SDs, 0 SdLazy, 19 SolverSat, 3 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 51 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 2 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 77.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 36 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 13.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 46.8s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 13 QuantifiedInterpolants, 4655 SizeOfPredicates, 18 NumberOfNonLiveVariables, 199 ConjunctsInSsa, 21 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 correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...