./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 cbb939d5 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-cbb939d [2020-11-23 16:33:55,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-23 16:33:55,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-23 16:33:55,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-23 16:33:55,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-23 16:33:55,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-23 16:33:55,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-23 16:33:55,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-23 16:33:55,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-23 16:33:55,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-23 16:33:55,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-23 16:33:55,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-23 16:33:55,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-23 16:33:55,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-23 16:33:55,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-23 16:33:55,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-23 16:33:55,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-23 16:33:55,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-23 16:33:55,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-23 16:33:55,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-23 16:33:55,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-23 16:33:55,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-23 16:33:55,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-23 16:33:55,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-23 16:33:55,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-23 16:33:55,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-23 16:33:55,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-23 16:33:55,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-23 16:33:55,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-23 16:33:55,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-23 16:33:55,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-23 16:33:55,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-23 16:33:55,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-23 16:33:55,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-23 16:33:55,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-23 16:33:55,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-23 16:33:55,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-23 16:33:55,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-23 16:33:55,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-23 16:33:55,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-23 16:33:55,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-23 16:33:55,579 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-23 16:33:55,620 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-23 16:33:55,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-23 16:33:55,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-23 16:33:55,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-23 16:33:55,623 INFO L138 SettingsManager]: * Use SBE=true [2020-11-23 16:33:55,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-23 16:33:55,624 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-23 16:33:55,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-23 16:33:55,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-23 16:33:55,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-23 16:33:55,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-23 16:33:55,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-23 16:33:55,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-23 16:33:55,625 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-23 16:33:55,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-23 16:33:55,626 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-23 16:33:55,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-23 16:33:55,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-23 16:33:55,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-23 16:33:55,627 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-23 16:33:55,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-23 16:33:55,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-23 16:33:55,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-23 16:33:55,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-23 16:33:55,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-23 16:33:55,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-23 16:33:55,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-23 16:33:55,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-23 16:33:55,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-23 16:33:55,629 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1ef2080ffd97f82ac51854e7d9813eba864fd0a [2020-11-23 16:33:56,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-23 16:33:56,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-23 16:33:56,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-23 16:33:56,049 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-23 16:33:56,050 INFO L275 PluginConnector]: CDTParser initialized [2020-11-23 16:33:56,051 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1121a.c [2020-11-23 16:33:56,147 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ebe59d4f/280caa91421d427f853c5f1777103415/FLAGcb6512a6f [2020-11-23 16:33:56,804 INFO L306 CDTParser]: Found 1 translation units. [2020-11-23 16:33:56,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1121a.c [2020-11-23 16:33:56,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ebe59d4f/280caa91421d427f853c5f1777103415/FLAGcb6512a6f [2020-11-23 16:33:57,153 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ebe59d4f/280caa91421d427f853c5f1777103415 [2020-11-23 16:33:57,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-23 16:33:57,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-23 16:33:57,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-23 16:33:57,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-23 16:33:57,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-23 16:33:57,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:33:57" (1/1) ... [2020-11-23 16:33:57,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d55d7a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:33:57, skipping insertion in model container [2020-11-23 16:33:57,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:33:57" (1/1) ... [2020-11-23 16:33:57,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-23 16:33:57,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-23 16:33:57,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:33:57,585 INFO L203 MainTranslator]: Completed pre-run [2020-11-23 16:33:57,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:33:57,716 INFO L208 MainTranslator]: Completed translation [2020-11-23 16:33:57,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:33:57 WrapperNode [2020-11-23 16:33:57,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-23 16:33:57,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-23 16:33:57,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-23 16:33:57,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-23 16:33:57,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:33:57" (1/1) ... [2020-11-23 16:33:57,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:33:57" (1/1) ... [2020-11-23 16:33:57,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-23 16:33:57,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-23 16:33:57,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-23 16:33:57,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-23 16:33:57,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:33:57" (1/1) ... [2020-11-23 16:33:57,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:33:57" (1/1) ... [2020-11-23 16:33:57,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:33:57" (1/1) ... [2020-11-23 16:33:57,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:33:57" (1/1) ... [2020-11-23 16:33:57,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:33:57" (1/1) ... [2020-11-23 16:33:57,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:33:57" (1/1) ... [2020-11-23 16:33:57,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:33:57" (1/1) ... [2020-11-23 16:33:57,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-23 16:33:57,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-23 16:33:57,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-23 16:33:57,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-23 16:33:57,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:33:57" (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 [2020-11-23 16:33:57,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-23 16:33:57,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-23 16:33:57,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-23 16:33:57,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-23 16:33:57,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-23 16:33:57,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-23 16:33:57,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-23 16:33:57,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-23 16:33:57,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-23 16:33:57,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-23 16:33:58,597 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-23 16:33:58,598 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-23 16:33:58,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:33:58 BoogieIcfgContainer [2020-11-23 16:33:58,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-23 16:33:58,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-23 16:33:58,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-23 16:33:58,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-23 16:33:58,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:33:57" (1/3) ... [2020-11-23 16:33:58,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100946fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:33:58, skipping insertion in model container [2020-11-23 16:33:58,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:33:57" (2/3) ... [2020-11-23 16:33:58,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100946fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:33:58, skipping insertion in model container [2020-11-23 16:33:58,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:33:58" (3/3) ... [2020-11-23 16:33:58,615 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121a.c [2020-11-23 16:33:58,632 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-23 16:33:58,637 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-23 16:33:58,657 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-23 16:33:58,710 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-23 16:33:58,711 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-23 16:33:58,711 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-23 16:33:58,711 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-23 16:33:58,711 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-23 16:33:58,712 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-23 16:33:58,712 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-23 16:33:58,712 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-23 16:33:58,741 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-11-23 16:33:58,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-23 16:33:58,748 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:33:58,749 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:33:58,749 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:33:58,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:33:58,757 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-11-23 16:33:58,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-23 16:33:58,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324112511] [2020-11-23 16:33:58,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-23 16:33:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 16:33:58,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:33:58,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324112511] [2020-11-23 16:33:58,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-23 16:33:58,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-23 16:33:58,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992238900] [2020-11-23 16:33:58,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-23 16:33:58,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-23 16:33:58,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-23 16:33:58,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-23 16:33:58,971 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2020-11-23 16:33:59,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 16:33:59,000 INFO L93 Difference]: Finished difference Result 109 states and 191 transitions. [2020-11-23 16:33:59,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-23 16:33:59,002 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-23 16:33:59,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 16:33:59,015 INFO L225 Difference]: With dead ends: 109 [2020-11-23 16:33:59,015 INFO L226 Difference]: Without dead ends: 52 [2020-11-23 16:33:59,019 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 [2020-11-23 16:33:59,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-23 16:33:59,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-11-23 16:33:59,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-23 16:33:59,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-11-23 16:33:59,064 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-11-23 16:33:59,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 16:33:59,065 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-11-23 16:33:59,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-23 16:33:59,066 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-11-23 16:33:59,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-23 16:33:59,066 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:33:59,067 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:33:59,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-23 16:33:59,067 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:33:59,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:33:59,074 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-11-23 16:33:59,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-23 16:33:59,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501868209] [2020-11-23 16:33:59,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-23 16:33:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 16:33:59,246 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 16:33:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 16:33:59,329 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 16:33:59,360 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-23 16:33:59,360 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-23 16:33:59,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-23 16:33:59,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:33:59 BoogieIcfgContainer [2020-11-23 16:33:59,398 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-23 16:33:59,399 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-23 16:33:59,399 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-23 16:33:59,400 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-23 16:33:59,400 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:33:58" (3/4) ... [2020-11-23 16:33:59,405 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-23 16:33:59,405 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-23 16:33:59,408 INFO L168 Benchmark]: Toolchain (without parser) took 2247.04 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 28.7 MB in the beginning and 34.5 MB in the end (delta: -5.7 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2020-11-23 16:33:59,409 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 35.7 MB. Free memory was 20.0 MB in the beginning and 19.9 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:33:59,410 INFO L168 Benchmark]: CACSL2BoogieTranslator took 548.71 ms. Allocated memory is still 52.4 MB. Free memory was 28.1 MB in the beginning and 28.3 MB in the end (delta: -252.9 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-11-23 16:33:59,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.51 ms. Allocated memory is still 52.4 MB. Free memory was 28.3 MB in the beginning and 25.7 MB in the end (delta: 2.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:33:59,416 INFO L168 Benchmark]: Boogie Preprocessor took 81.19 ms. Allocated memory is still 52.4 MB. Free memory was 25.7 MB in the beginning and 23.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-23 16:33:59,417 INFO L168 Benchmark]: RCFGBuilder took 691.88 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 23.6 MB in the beginning and 43.4 MB in the end (delta: -19.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2020-11-23 16:33:59,419 INFO L168 Benchmark]: TraceAbstraction took 792.87 ms. Allocated memory is still 62.9 MB. Free memory was 43.1 MB in the beginning and 34.8 MB in the end (delta: 8.3 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2020-11-23 16:33:59,420 INFO L168 Benchmark]: Witness Printer took 6.20 ms. Allocated memory is still 62.9 MB. Free memory was 34.8 MB in the beginning and 34.5 MB in the end (delta: 341.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:33:59,425 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 35.7 MB. Free memory was 20.0 MB in the beginning and 19.9 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 548.71 ms. Allocated memory is still 52.4 MB. Free memory was 28.1 MB in the beginning and 28.3 MB in the end (delta: -252.9 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 105.51 ms. Allocated memory is still 52.4 MB. Free memory was 28.3 MB in the beginning and 25.7 MB in the end (delta: 2.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.19 ms. Allocated memory is still 52.4 MB. Free memory was 25.7 MB in the beginning and 23.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 691.88 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 23.6 MB in the beginning and 43.4 MB in the end (delta: -19.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 792.87 ms. Allocated memory is still 62.9 MB. Free memory was 43.1 MB in the beginning and 34.8 MB in the end (delta: 8.3 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * Witness Printer took 6.20 ms. Allocated memory is still 62.9 MB. Free memory was 34.8 MB in the beginning and 34.5 MB in the end (delta: 341.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() 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) [L3] __assert_fail("0", "double_req_bl_1121a.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 81 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred 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-cbb939d [2020-11-23 16:34:02,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-23 16:34:02,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-23 16:34:02,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-23 16:34:02,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-23 16:34:02,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-23 16:34:02,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-23 16:34:02,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-23 16:34:02,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-23 16:34:02,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-23 16:34:02,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-23 16:34:02,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-23 16:34:02,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-23 16:34:02,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-23 16:34:02,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-23 16:34:02,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-23 16:34:02,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-23 16:34:02,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-23 16:34:02,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-23 16:34:02,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-23 16:34:02,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-23 16:34:02,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-23 16:34:02,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-23 16:34:02,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-23 16:34:02,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-23 16:34:02,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-23 16:34:02,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-23 16:34:02,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-23 16:34:02,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-23 16:34:02,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-23 16:34:02,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-23 16:34:02,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-23 16:34:02,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-23 16:34:02,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-23 16:34:02,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-23 16:34:02,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-23 16:34:02,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-23 16:34:02,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-23 16:34:02,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-23 16:34:02,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-23 16:34:02,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-23 16:34:02,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-23 16:34:02,244 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-23 16:34:02,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-23 16:34:02,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-23 16:34:02,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-23 16:34:02,248 INFO L138 SettingsManager]: * Use SBE=true [2020-11-23 16:34:02,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-23 16:34:02,249 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-23 16:34:02,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-23 16:34:02,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-23 16:34:02,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-23 16:34:02,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-23 16:34:02,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-23 16:34:02,251 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-23 16:34:02,251 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-23 16:34:02,252 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-23 16:34:02,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-23 16:34:02,252 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-23 16:34:02,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-23 16:34:02,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-23 16:34:02,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-23 16:34:02,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-23 16:34:02,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-23 16:34:02,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-23 16:34:02,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-23 16:34:02,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-23 16:34:02,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-23 16:34:02,255 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-23 16:34:02,255 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-23 16:34:02,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-23 16:34:02,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-23 16:34:02,256 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-23 16:34:02,256 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1ef2080ffd97f82ac51854e7d9813eba864fd0a [2020-11-23 16:34:02,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-23 16:34:02,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-23 16:34:02,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-23 16:34:02,771 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-23 16:34:02,772 INFO L275 PluginConnector]: CDTParser initialized [2020-11-23 16:34:02,773 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1121a.c [2020-11-23 16:34:02,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b87aeddc/deb729aa27f242288bef777484ad296d/FLAG92e6fbdde [2020-11-23 16:34:03,507 INFO L306 CDTParser]: Found 1 translation units. [2020-11-23 16:34:03,508 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1121a.c [2020-11-23 16:34:03,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b87aeddc/deb729aa27f242288bef777484ad296d/FLAG92e6fbdde [2020-11-23 16:34:03,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b87aeddc/deb729aa27f242288bef777484ad296d [2020-11-23 16:34:03,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-23 16:34:03,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-23 16:34:03,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-23 16:34:03,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-23 16:34:03,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-23 16:34:03,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:34:03" (1/1) ... [2020-11-23 16:34:03,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@537d4cdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:34:03, skipping insertion in model container [2020-11-23 16:34:03,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:34:03" (1/1) ... [2020-11-23 16:34:03,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-23 16:34:03,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-23 16:34:04,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:34:04,280 INFO L203 MainTranslator]: Completed pre-run [2020-11-23 16:34:04,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:34:04,355 INFO L208 MainTranslator]: Completed translation [2020-11-23 16:34:04,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:34:04 WrapperNode [2020-11-23 16:34:04,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-23 16:34:04,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-23 16:34:04,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-23 16:34:04,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-23 16:34:04,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:34:04" (1/1) ... [2020-11-23 16:34:04,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:34:04" (1/1) ... [2020-11-23 16:34:04,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-23 16:34:04,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-23 16:34:04,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-23 16:34:04,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-23 16:34:04,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:34:04" (1/1) ... [2020-11-23 16:34:04,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:34:04" (1/1) ... [2020-11-23 16:34:04,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:34:04" (1/1) ... [2020-11-23 16:34:04,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:34:04" (1/1) ... [2020-11-23 16:34:04,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:34:04" (1/1) ... [2020-11-23 16:34:04,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:34:04" (1/1) ... [2020-11-23 16:34:04,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:34:04" (1/1) ... [2020-11-23 16:34:04,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-23 16:34:04,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-23 16:34:04,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-23 16:34:04,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-23 16:34:04,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:34:04" (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 [2020-11-23 16:34:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-23 16:34:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-23 16:34:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-23 16:34:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-23 16:34:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-11-23 16:34:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-23 16:34:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-23 16:34:04,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-23 16:34:04,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-23 16:34:04,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-23 16:34:08,442 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-23 16:34:08,442 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-23 16:34:08,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:34:08 BoogieIcfgContainer [2020-11-23 16:34:08,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-23 16:34:08,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-23 16:34:08,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-23 16:34:08,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-23 16:34:08,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:34:03" (1/3) ... [2020-11-23 16:34:08,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a63d5fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:34:08, skipping insertion in model container [2020-11-23 16:34:08,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:34:04" (2/3) ... [2020-11-23 16:34:08,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a63d5fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:34:08, skipping insertion in model container [2020-11-23 16:34:08,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:34:08" (3/3) ... [2020-11-23 16:34:08,458 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121a.c [2020-11-23 16:34:08,477 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-23 16:34:08,481 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-23 16:34:08,496 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-23 16:34:08,544 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-23 16:34:08,544 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-23 16:34:08,544 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-23 16:34:08,545 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-23 16:34:08,545 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-23 16:34:08,545 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-23 16:34:08,545 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-23 16:34:08,546 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-23 16:34:08,568 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-11-23 16:34:08,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-23 16:34:08,575 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:34:08,576 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:34:08,577 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:34:08,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:34:08,586 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-11-23 16:34:08,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 16:34:08,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970873616] [2020-11-23 16:34:08,608 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 [2020-11-23 16:34:09,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 16:34:09,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-23 16:34:09,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 16:34:09,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:34:09,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 16:34:09,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:34:09,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970873616] [2020-11-23 16:34:09,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 16:34:09,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-23 16:34:09,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773492115] [2020-11-23 16:34:09,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-23 16:34:09,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 16:34:09,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-23 16:34:09,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-23 16:34:09,992 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2020-11-23 16:34:10,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 16:34:10,035 INFO L93 Difference]: Finished difference Result 109 states and 191 transitions. [2020-11-23 16:34:10,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-23 16:34:10,037 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-23 16:34:10,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 16:34:10,051 INFO L225 Difference]: With dead ends: 109 [2020-11-23 16:34:10,051 INFO L226 Difference]: Without dead ends: 52 [2020-11-23 16:34:10,057 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 [2020-11-23 16:34:10,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-23 16:34:10,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-11-23 16:34:10,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-23 16:34:10,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-11-23 16:34:10,099 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-11-23 16:34:10,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 16:34:10,099 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-11-23 16:34:10,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-23 16:34:10,100 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-11-23 16:34:10,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-23 16:34:10,101 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:34:10,101 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:34:10,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-23 16:34:10,314 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:34:10,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:34:10,316 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-11-23 16:34:10,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 16:34:10,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263419111] [2020-11-23 16:34:10,318 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 [2020-11-23 16:34:11,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 16:34:11,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-23 16:34:11,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 16:34:22,654 WARN L194 SmtUtils]: Spent 2.83 s on a formula simplification that was a NOOP. DAG size: 8 [2020-11-23 16:34:33,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:34:33,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 16:34:46,649 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 [2020-11-23 16:34:48,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:34:48,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1263419111] [2020-11-23 16:34:48,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 16:34:48,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-11-23 16:34:48,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687798310] [2020-11-23 16:34:48,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-23 16:34:48,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 16:34:48,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-23 16:34:48,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=68, Unknown=2, NotChecked=16, Total=110 [2020-11-23 16:34:48,573 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 11 states. [2020-11-23 16:34:53,314 WARN L838 $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 false [2020-11-23 16:34:56,094 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 [2020-11-23 16:35:00,293 WARN L860 $PredicateComparison]: unable to prove that (and (not (fp.eq |c_ULTIMATE.start_fmod_double_#res| |c_ULTIMATE.start_fmod_double_#res|)) (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= |c_ULTIMATE.start_fmod_double_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (_ +zero 11 53)))) (fp.div roundNearestTiesToEven .cse0 .cse0))))) is different from true [2020-11-23 16:35:16,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 16:35:16,685 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2020-11-23 16:35:16,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-23 16:35:16,729 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-11-23 16:35:16,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 16:35:16,731 INFO L225 Difference]: With dead ends: 57 [2020-11-23 16:35:16,731 INFO L226 Difference]: Without dead ends: 52 [2020-11-23 16:35:16,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 44.8s TimeCoverageRelationStatistics Valid=34, Invalid=83, Unknown=5, NotChecked=60, Total=182 [2020-11-23 16:35:16,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-23 16:35:16,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-11-23 16:35:16,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-23 16:35:16,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2020-11-23 16:35:16,741 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2020-11-23 16:35:16,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 16:35:16,741 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-11-23 16:35:16,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-23 16:35:16,742 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2020-11-23 16:35:16,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-23 16:35:16,742 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:35:16,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:35:16,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-23 16:35:16,944 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:35:16,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:35:16,945 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2020-11-23 16:35:16,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 16:35:16,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7646649] [2020-11-23 16:35:16,947 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 [2020-11-23 16:35:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 16:35:17,154 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 16:35:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 16:35:17,358 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 16:35:17,430 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-23 16:35:17,430 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-23 16:35:17,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-23 16:35:17,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:35:17 BoogieIcfgContainer [2020-11-23 16:35:17,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-23 16:35:17,682 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-23 16:35:17,682 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-23 16:35:17,682 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-23 16:35:17,683 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:34:08" (3/4) ... [2020-11-23 16:35:17,685 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-23 16:35:17,747 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-11-23 16:35:17,748 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-23 16:35:17,750 INFO L168 Benchmark]: Toolchain (without parser) took 73874.70 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 31.1 MB in the beginning and 46.6 MB in the end (delta: -15.5 MB). Peak memory consumption was 931.2 kB. Max. memory is 16.1 GB. [2020-11-23 16:35:17,750 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 39.8 MB. Free memory was 17.7 MB in the beginning and 17.6 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:35:17,751 INFO L168 Benchmark]: CACSL2BoogieTranslator took 473.37 ms. Allocated memory is still 54.5 MB. Free memory was 30.5 MB in the beginning and 29.7 MB in the end (delta: 866.3 kB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-11-23 16:35:17,752 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.53 ms. Allocated memory is still 54.5 MB. Free memory was 29.7 MB in the beginning and 27.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-23 16:35:17,753 INFO L168 Benchmark]: Boogie Preprocessor took 50.50 ms. Allocated memory is still 54.5 MB. Free memory was 27.5 MB in the beginning and 25.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-23 16:35:17,754 INFO L168 Benchmark]: RCFGBuilder took 3977.25 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 25.2 MB in the beginning and 48.3 MB in the end (delta: -23.2 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-11-23 16:35:17,754 INFO L168 Benchmark]: TraceAbstraction took 69232.81 ms. Allocated memory is still 69.2 MB. Free memory was 47.9 MB in the beginning and 49.2 MB in the end (delta: -1.2 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. [2020-11-23 16:35:17,755 INFO L168 Benchmark]: Witness Printer took 65.86 ms. Allocated memory is still 69.2 MB. Free memory was 49.2 MB in the beginning and 46.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-23 16:35:17,760 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 39.8 MB. Free memory was 17.7 MB in the beginning and 17.6 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 473.37 ms. Allocated memory is still 54.5 MB. Free memory was 30.5 MB in the beginning and 29.7 MB in the end (delta: 866.3 kB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.53 ms. Allocated memory is still 54.5 MB. Free memory was 29.7 MB in the beginning and 27.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.50 ms. Allocated memory is still 54.5 MB. Free memory was 27.5 MB in the beginning and 25.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3977.25 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 25.2 MB in the beginning and 48.3 MB in the end (delta: -23.2 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 69232.81 ms. Allocated memory is still 69.2 MB. Free memory was 47.9 MB in the beginning and 49.2 MB in the end (delta: -1.2 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. * Witness Printer took 65.86 ms. Allocated memory is still 69.2 MB. Free memory was 49.2 MB in the beginning and 46.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1.0, Zero_fmod={2:0}] [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=1.0, Zero_fmod={2:0}] [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=1.0, Zero_fmod={2:0}] [L45-L46] COND FALSE !((hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000)) VAL [one_fmod=1.0, Zero_fmod={2:0}] [L48] COND TRUE hx <= hy VAL [one_fmod=1.0, Zero_fmod={2:0}] [L49] COND TRUE (hx < hy) || (lx < ly) [L50] return x; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L173] double res = fmod_double(x, y); [L18] return x != x; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L176] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1121a.c", 3, "reach_error") VAL [one_fmod=1.0, Zero_fmod={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 69.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 28.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 151 SDtfs, 2 SDslu, 337 SDs, 0 SdLazy, 13 SolverSat, 0 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 16.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 44.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 37.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 7 QuantifiedInterpolants, 2549 SizeOfPredicates, 11 NumberOfNonLiveVariables, 132 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...