./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0621b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0621b.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 f0a64e192e0bbeec977baf2f66a916968f631543 .................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0621b.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 f0a64e192e0bbeec977baf2f66a916968f631543 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 23:19:56,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:19:56,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:19:56,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:19:56,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:19:56,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:19:56,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:19:56,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:19:56,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:19:56,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:19:56,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:19:57,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:19:57,003 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:19:57,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:19:57,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:19:57,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:19:57,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:19:57,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:19:57,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:19:57,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:19:57,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:19:57,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:19:57,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:19:57,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:19:57,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:19:57,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:19:57,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:19:57,047 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:19:57,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:19:57,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:19:57,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:19:57,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:19:57,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:19:57,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:19:57,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:19:57,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:19:57,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:19:57,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:19:57,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:19:57,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:19:57,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:19:57,061 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:19:57,119 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:19:57,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:19:57,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:19:57,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:19:57,121 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:19:57,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:19:57,122 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:19:57,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:19:57,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:19:57,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:19:57,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:19:57,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:19:57,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:19:57,123 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:19:57,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:19:57,123 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:19:57,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:19:57,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:19:57,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:19:57,124 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:19:57,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:19:57,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:19:57,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:19:57,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:19:57,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:19:57,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:19:57,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:19:57,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:19:57,126 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:19:57,126 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0a64e192e0bbeec977baf2f66a916968f631543 [2020-10-24 23:19:57,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:19:57,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:19:57,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:19:57,536 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:19:57,537 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:19:57,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0621b.c [2020-10-24 23:19:57,624 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7c3d061c/9b72c085fba04982b7f459081b2c4203/FLAGd112e06e8 [2020-10-24 23:19:58,200 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:19:58,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0621b.c [2020-10-24 23:19:58,216 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7c3d061c/9b72c085fba04982b7f459081b2c4203/FLAGd112e06e8 [2020-10-24 23:19:58,564 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7c3d061c/9b72c085fba04982b7f459081b2c4203 [2020-10-24 23:19:58,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:19:58,578 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:19:58,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:19:58,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:19:58,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:19:58,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:19:58" (1/1) ... [2020-10-24 23:19:58,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d51a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:58, skipping insertion in model container [2020-10-24 23:19:58,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:19:58" (1/1) ... [2020-10-24 23:19:58,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:19:58,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:19:58,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:19:58,937 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:19:58,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:19:59,000 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:19:59,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:59 WrapperNode [2020-10-24 23:19:59,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:19:59,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:19:59,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:19:59,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:19:59,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:59" (1/1) ... [2020-10-24 23:19:59,023 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:59" (1/1) ... [2020-10-24 23:19:59,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:19:59,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:19:59,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:19:59,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:19:59,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:59" (1/1) ... [2020-10-24 23:19:59,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:59" (1/1) ... [2020-10-24 23:19:59,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:59" (1/1) ... [2020-10-24 23:19:59,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:59" (1/1) ... [2020-10-24 23:19:59,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:59" (1/1) ... [2020-10-24 23:19:59,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:59" (1/1) ... [2020-10-24 23:19:59,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:59" (1/1) ... [2020-10-24 23:19:59,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:19:59,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:19:59,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:19:59,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:19:59,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:59" (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 [2020-10-24 23:19:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:19:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:19:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:19:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:19:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:19:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:19:59,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:19:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:19:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-24 23:19:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:19:59,802 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:19:59,803 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 23:19:59,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:19:59 BoogieIcfgContainer [2020-10-24 23:19:59,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:19:59,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:19:59,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:19:59,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:19:59,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:19:58" (1/3) ... [2020-10-24 23:19:59,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a212411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:19:59, skipping insertion in model container [2020-10-24 23:19:59,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:59" (2/3) ... [2020-10-24 23:19:59,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a212411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:19:59, skipping insertion in model container [2020-10-24 23:19:59,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:19:59" (3/3) ... [2020-10-24 23:19:59,816 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0621b.c [2020-10-24 23:19:59,829 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:19:59,835 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:19:59,848 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:19:59,892 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:19:59,893 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:19:59,893 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:19:59,893 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:19:59,893 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:19:59,894 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:19:59,894 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:19:59,894 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:19:59,910 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-24 23:19:59,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 23:19:59,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:19:59,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:19:59,917 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:19:59,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:19:59,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1906423550, now seen corresponding path program 1 times [2020-10-24 23:19:59,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:19:59,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801761697] [2020-10-24 23:19:59,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:20:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:20:00,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:20:00,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801761697] [2020-10-24 23:20:00,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:20:00,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:20:00,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954206379] [2020-10-24 23:20:00,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:20:00,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:20:00,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:20:00,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:20:00,122 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-10-24 23:20:00,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:20:00,142 INFO L93 Difference]: Finished difference Result 63 states and 97 transitions. [2020-10-24 23:20:00,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:20:00,144 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-24 23:20:00,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:20:00,154 INFO L225 Difference]: With dead ends: 63 [2020-10-24 23:20:00,154 INFO L226 Difference]: Without dead ends: 29 [2020-10-24 23:20:00,157 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 [2020-10-24 23:20:00,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-24 23:20:00,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-24 23:20:00,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-24 23:20:00,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-10-24 23:20:00,195 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 9 [2020-10-24 23:20:00,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:20:00,196 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-10-24 23:20:00,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:20:00,196 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-10-24 23:20:00,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:20:00,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:20:00,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:20:00,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:20:00,198 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:20:00,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:20:00,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1481927263, now seen corresponding path program 1 times [2020-10-24 23:20:00,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:20:00,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422916066] [2020-10-24 23:20:00,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:20:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:20:00,307 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:20:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:20:00,368 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:20:00,397 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:20:00,398 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:20:00,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:20:00,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:20:00 BoogieIcfgContainer [2020-10-24 23:20:00,442 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:20:00,443 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:20:00,443 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:20:00,443 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:20:00,444 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:19:59" (3/4) ... [2020-10-24 23:20:00,449 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:20:00,449 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:20:00,454 INFO L168 Benchmark]: Toolchain (without parser) took 1877.97 ms. Allocated memory was 39.8 MB in the beginning and 60.8 MB in the end (delta: 21.0 MB). Free memory was 15.8 MB in the beginning and 32.0 MB in the end (delta: -16.2 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2020-10-24 23:20:00,455 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 39.8 MB. Free memory was 25.4 MB in the beginning and 25.4 MB in the end (delta: 25.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:20:00,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 418.76 ms. Allocated memory was 39.8 MB in the beginning and 50.3 MB in the end (delta: 10.5 MB). Free memory was 15.2 MB in the beginning and 22.8 MB in the end (delta: -7.6 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:20:00,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.81 ms. Allocated memory is still 50.3 MB. Free memory was 22.8 MB in the beginning and 20.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:20:00,460 INFO L168 Benchmark]: Boogie Preprocessor took 42.57 ms. Allocated memory is still 50.3 MB. Free memory was 20.6 MB in the beginning and 32.4 MB in the end (delta: -11.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:20:00,462 INFO L168 Benchmark]: RCFGBuilder took 706.26 ms. Allocated memory is still 50.3 MB. Free memory was 32.4 MB in the beginning and 24.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:20:00,464 INFO L168 Benchmark]: TraceAbstraction took 634.06 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 23.6 MB in the beginning and 32.4 MB in the end (delta: -8.8 MB). Peak memory consumption was 1.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:20:00,464 INFO L168 Benchmark]: Witness Printer took 6.23 ms. Allocated memory is still 60.8 MB. Free memory was 32.4 MB in the beginning and 32.0 MB in the end (delta: 341.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:20:00,474 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 39.8 MB. Free memory was 25.4 MB in the beginning and 25.4 MB in the end (delta: 25.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 418.76 ms. Allocated memory was 39.8 MB in the beginning and 50.3 MB in the end (delta: 10.5 MB). Free memory was 15.2 MB in the beginning and 22.8 MB in the end (delta: -7.6 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.81 ms. Allocated memory is still 50.3 MB. Free memory was 22.8 MB in the beginning and 20.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.57 ms. Allocated memory is still 50.3 MB. Free memory was 20.6 MB in the beginning and 32.4 MB in the end (delta: -11.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 706.26 ms. Allocated memory is still 50.3 MB. Free memory was 32.4 MB in the beginning and 24.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 634.06 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 23.6 MB in the beginning and 32.4 MB in the end (delta: -8.8 MB). Peak memory consumption was 1.3 MB. Max. memory is 16.1 GB. * Witness Printer took 6.23 ms. Allocated memory is still 60.8 MB. Free memory was 32.4 MB in the beginning and 32.0 MB in the end (delta: 341.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 131, overapproximation of someUnaryDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 67, overapproximation of someBinaryArithmeticFLOAToperation at line 70. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L34-L39] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L41-L46] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L48-L52] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L54-L56] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L128] float x = -1.0f / 0.0f; [L59] float w, s1, s2, z; [L60] __int32_t ix, hx, id; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L63] ieee_float_shape_type gf_u; [L64] gf_u.value = (x) [L65] EXPR gf_u.word [L65] (hx) = gf_u.word [L67] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L68] COND TRUE ix >= 0x50800000 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L69] COND TRUE ((ix) > 0x7f800000L) [L70] return x + x; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L129] float res = atan_float(x); [L131] COND TRUE res != -pi_o_2 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L3] __assert_fail("0", "float_req_bl_0621b.c", 3, "reach_error") VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 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: 42 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=33occurred 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, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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-a4ecdab [2020-10-24 23:20:02,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:20:02,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:20:03,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:20:03,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:20:03,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:20:03,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:20:03,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:20:03,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:20:03,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:20:03,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:20:03,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:20:03,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:20:03,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:20:03,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:20:03,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:20:03,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:20:03,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:20:03,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:20:03,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:20:03,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:20:03,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:20:03,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:20:03,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:20:03,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:20:03,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:20:03,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:20:03,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:20:03,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:20:03,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:20:03,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:20:03,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:20:03,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:20:03,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:20:03,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:20:03,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:20:03,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:20:03,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:20:03,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:20:03,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:20:03,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:20:03,133 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:20:03,179 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:20:03,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:20:03,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:20:03,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:20:03,184 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:20:03,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:20:03,196 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:20:03,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:20:03,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:20:03,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:20:03,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:20:03,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:20:03,199 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:20:03,200 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:20:03,200 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:20:03,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:20:03,200 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:20:03,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:20:03,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:20:03,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:20:03,201 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:20:03,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:20:03,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:20:03,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:20:03,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:20:03,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:20:03,203 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:20:03,203 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:20:03,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:20:03,204 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:20:03,204 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:20:03,204 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0a64e192e0bbeec977baf2f66a916968f631543 [2020-10-24 23:20:03,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:20:03,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:20:03,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:20:03,632 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:20:03,633 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:20:03,633 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0621b.c [2020-10-24 23:20:03,715 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e67c43b9c/a9897b9f0c5748128411debe948ca81d/FLAG1bb8f8e23 [2020-10-24 23:20:04,257 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:20:04,258 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0621b.c [2020-10-24 23:20:04,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e67c43b9c/a9897b9f0c5748128411debe948ca81d/FLAG1bb8f8e23 [2020-10-24 23:20:04,622 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e67c43b9c/a9897b9f0c5748128411debe948ca81d [2020-10-24 23:20:04,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:20:04,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:20:04,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:20:04,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:20:04,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:20:04,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:20:04" (1/1) ... [2020-10-24 23:20:04,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b8a6a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:20:04, skipping insertion in model container [2020-10-24 23:20:04,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:20:04" (1/1) ... [2020-10-24 23:20:04,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:20:04,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:20:05,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:20:05,073 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:20:05,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:20:05,156 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:20:05,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:20:05 WrapperNode [2020-10-24 23:20:05,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:20:05,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:20:05,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:20:05,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:20:05,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:20:05" (1/1) ... [2020-10-24 23:20:05,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:20:05" (1/1) ... [2020-10-24 23:20:05,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:20:05,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:20:05,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:20:05,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:20:05,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:20:05" (1/1) ... [2020-10-24 23:20:05,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:20:05" (1/1) ... [2020-10-24 23:20:05,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:20:05" (1/1) ... [2020-10-24 23:20:05,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:20:05" (1/1) ... [2020-10-24 23:20:05,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:20:05" (1/1) ... [2020-10-24 23:20:05,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:20:05" (1/1) ... [2020-10-24 23:20:05,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:20:05" (1/1) ... [2020-10-24 23:20:05,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:20:05,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:20:05,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:20:05,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:20:05,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:20:05" (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 [2020-10-24 23:20:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-10-24 23:20:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:20:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:20:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-24 23:20:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:20:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:20:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:20:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-24 23:20:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:20:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:20:13,534 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:20:13,534 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 23:20:13,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:20:13 BoogieIcfgContainer [2020-10-24 23:20:13,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:20:13,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:20:13,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:20:13,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:20:13,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:20:04" (1/3) ... [2020-10-24 23:20:13,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744cc9b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:20:13, skipping insertion in model container [2020-10-24 23:20:13,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:20:05" (2/3) ... [2020-10-24 23:20:13,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744cc9b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:20:13, skipping insertion in model container [2020-10-24 23:20:13,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:20:13" (3/3) ... [2020-10-24 23:20:13,544 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0621b.c [2020-10-24 23:20:13,555 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:20:13,560 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:20:13,573 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:20:13,599 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:20:13,599 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:20:13,599 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:20:13,599 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:20:13,600 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:20:13,600 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:20:13,600 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:20:13,600 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:20:13,612 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-24 23:20:13,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 23:20:13,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:20:13,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:20:13,618 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:20:13,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:20:13,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1906423550, now seen corresponding path program 1 times [2020-10-24 23:20:13,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:20:13,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [230771340] [2020-10-24 23:20:13,646 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 [2020-10-24 23:20:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:20:14,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:20:14,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:20:14,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:20:14,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:20:14,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:20:14,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [230771340] [2020-10-24 23:20:14,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:20:14,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:20:14,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433912420] [2020-10-24 23:20:14,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:20:14,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:20:14,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:20:14,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:20:14,879 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-10-24 23:20:14,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:20:14,899 INFO L93 Difference]: Finished difference Result 63 states and 97 transitions. [2020-10-24 23:20:14,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:20:14,900 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-24 23:20:14,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:20:14,917 INFO L225 Difference]: With dead ends: 63 [2020-10-24 23:20:14,918 INFO L226 Difference]: Without dead ends: 29 [2020-10-24 23:20:14,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:20:14,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-24 23:20:14,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-24 23:20:14,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-24 23:20:14,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-10-24 23:20:14,957 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 9 [2020-10-24 23:20:14,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:20:14,958 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-10-24 23:20:14,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:20:14,958 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-10-24 23:20:14,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:20:14,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:20:14,959 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:20:15,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:20:15,174 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:20:15,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:20:15,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1481927263, now seen corresponding path program 1 times [2020-10-24 23:20:15,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:20:15,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241334004] [2020-10-24 23:20:15,178 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 [2020-10-24 23:20:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:20:16,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 23:20:16,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:20:16,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:20:16,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:20:16,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:20:16,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241334004] [2020-10-24 23:20:16,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:20:16,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 23:20:16,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081794912] [2020-10-24 23:20:16,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 23:20:16,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:20:16,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 23:20:16,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-24 23:20:16,336 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand 8 states. [2020-10-24 23:20:16,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:20:16,613 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2020-10-24 23:20:16,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 23:20:16,619 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-10-24 23:20:16,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:20:16,621 INFO L225 Difference]: With dead ends: 33 [2020-10-24 23:20:16,621 INFO L226 Difference]: Without dead ends: 12 [2020-10-24 23:20:16,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-24 23:20:16,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-24 23:20:16,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-24 23:20:16,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-24 23:20:16,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-10-24 23:20:16,626 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2020-10-24 23:20:16,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:20:16,626 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-10-24 23:20:16,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 23:20:16,627 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-10-24 23:20:16,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:20:16,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:20:16,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:20:16,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:20:16,841 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:20:16,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:20:16,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1305344773, now seen corresponding path program 1 times [2020-10-24 23:20:16,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:20:16,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210885729] [2020-10-24 23:20:16,848 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 [2020-10-24 23:20:18,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:20:18,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 21 conjunts are in the unsatisfiable core [2020-10-24 23:20:18,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:20:18,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:18,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:18,769 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 39 [2020-10-24 23:20:18,771 INFO L350 Elim1Store]: treesize reduction 339, result has 16.7 percent of original size [2020-10-24 23:20:18,772 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 738 treesize of output 752 [2020-10-24 23:20:18,779 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-10-24 23:20:18,779 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:18,785 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 6, 2, 2, 2, 5, 2, 3, 2, 2, 2, 3, 2, 3, 2, 3, 2, 2, 1] term [2020-10-24 23:20:18,786 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:18,790 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 3, 2, 2, 2, 3, 2, 3, 2, 3, 2, 2, 1] term [2020-10-24 23:20:18,790 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:18,793 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 2, 2, 3, 2, 3, 2, 3, 2, 2, 1] term [2020-10-24 23:20:18,793 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:18,795 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 3, 2, 3, 2, 3, 2, 2, 1] term [2020-10-24 23:20:18,796 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:18,797 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 3, 1] term [2020-10-24 23:20:18,797 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:18,799 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 1] term [2020-10-24 23:20:18,799 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:18,801 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 1] term [2020-10-24 23:20:18,801 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:18,804 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 3, 2, 3, 2, 2, 1] term [2020-10-24 23:20:18,804 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:18,806 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 3, 2, 2, 1] term [2020-10-24 23:20:18,806 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:18,808 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 2, 1] term [2020-10-24 23:20:18,808 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:18,810 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 1] term [2020-10-24 23:20:18,810 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:18,811 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 1] term [2020-10-24 23:20:18,812 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:18,817 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:19,817 WARN L193 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 110 [2020-10-24 23:20:19,820 INFO L625 ElimStorePlain]: treesize reduction 2434, result has 8.3 percent of original size [2020-10-24 23:20:19,836 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:19,846 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:19,851 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:19,856 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:19,864 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:19,874 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:19,881 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:19,885 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:19,889 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-24 23:20:19,890 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:200, output treesize:219 [2020-10-24 23:20:19,896 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:19,902 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:19,905 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:19,909 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:19,915 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:19,918 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:19,923 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:19,926 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,079 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-24 23:20:20,096 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,110 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,114 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,117 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,123 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,127 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,132 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,134 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,444 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,457 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,461 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,465 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,471 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,474 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,482 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,487 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,493 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,495 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,502 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,507 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,509 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,513 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,515 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,517 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,522 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,528 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,533 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,536 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,538 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,544 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,547 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,551 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,553 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,560 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,563 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,567 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,576 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,578 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,582 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,587 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,590 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,594 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,596 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,602 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,606 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,610 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,612 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,622 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,626 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,631 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,636 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,639 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,641 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,646 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,648 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,651 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,656 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:20,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:20,976 INFO L244 Elim1Store]: Index analysis took 235 ms [2020-10-24 23:20:21,207 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 23:20:21,208 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:21,209 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 43 treesize of output 179 [2020-10-24 23:20:21,213 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:21,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:21,483 INFO L244 Elim1Store]: Index analysis took 209 ms [2020-10-24 23:20:21,613 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:20:21,613 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:21,614 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:20:21,618 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:20:21,619 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:20:21,620 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:20:21,621 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:21,632 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:21,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:21,866 INFO L244 Elim1Store]: Index analysis took 185 ms [2020-10-24 23:20:22,015 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:20:22,015 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:22,016 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:20:22,019 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:20:22,031 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:20:22,033 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:20:22,034 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:22,046 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:22,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:22,264 INFO L244 Elim1Store]: Index analysis took 179 ms [2020-10-24 23:20:22,413 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:20:22,414 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:22,414 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:20:22,416 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:22,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:22,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:22,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:22,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:22,714 INFO L244 Elim1Store]: Index analysis took 249 ms [2020-10-24 23:20:22,850 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:20:22,851 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:22,851 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:20:22,856 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:22,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:23,092 INFO L244 Elim1Store]: Index analysis took 193 ms [2020-10-24 23:20:23,204 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:20:23,205 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:23,205 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:20:23,207 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:23,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:23,459 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:20:23,459 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:23,460 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:20:23,463 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:20:23,464 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:20:23,464 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:20:23,465 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:23,469 INFO L545 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:25,813 WARN L193 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 140 DAG size of output: 124 [2020-10-24 23:20:25,814 INFO L625 ElimStorePlain]: treesize reduction 470, result has 68.0 percent of original size [2020-10-24 23:20:25,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:25,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:25,951 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-24 23:20:25,964 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:25,964 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 103 [2020-10-24 23:20:25,966 INFO L545 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:26,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:26,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:26,123 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-24 23:20:26,130 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:26,131 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 103 [2020-10-24 23:20:26,133 INFO L545 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:26,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:26,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:26,294 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-24 23:20:26,307 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:26,308 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 103 [2020-10-24 23:20:26,309 INFO L545 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:26,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:26,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:26,441 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-24 23:20:26,448 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:26,449 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 103 [2020-10-24 23:20:26,452 INFO L545 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:26,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:26,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:26,543 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-24 23:20:26,558 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:26,558 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 103 [2020-10-24 23:20:26,560 INFO L545 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:28,822 WARN L193 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2020-10-24 23:20:28,824 INFO L625 ElimStorePlain]: treesize reduction 90, result has 91.6 percent of original size [2020-10-24 23:20:28,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210885729] [2020-10-24 23:20:28,829 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Unsupported sort (_ BitVec 32) [2020-10-24 23:20:28,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [226011679] [2020-10-24 23:20:28,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-24 23:20:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:20:35,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-24 23:20:35,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:20:35,416 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 39 [2020-10-24 23:20:35,417 INFO L350 Elim1Store]: treesize reduction 355, result has 16.1 percent of original size [2020-10-24 23:20:35,418 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 982 treesize of output 964 [2020-10-24 23:20:35,421 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 5, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 23:20:35,421 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:35,422 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 5, 1] term [2020-10-24 23:20:35,422 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:35,423 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 5, 1] term [2020-10-24 23:20:35,423 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:35,424 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 5, 1] term [2020-10-24 23:20:35,424 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:35,425 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 1] term [2020-10-24 23:20:35,425 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:35,426 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 5, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 23:20:35,427 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:35,428 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 5, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 23:20:35,428 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:35,429 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 5, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 23:20:35,429 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:35,437 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 6, 2, 2, 2, 2, 2, 2, 2, 5, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 23:20:35,438 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:35,445 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:36,172 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 86 [2020-10-24 23:20:36,174 INFO L625 ElimStorePlain]: treesize reduction 1710, result has 8.7 percent of original size [2020-10-24 23:20:36,178 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,181 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,182 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,184 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,187 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,189 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,191 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,193 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,195 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-24 23:20:36,195 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:140, output treesize:163 [2020-10-24 23:20:36,198 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,200 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,201 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,202 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,205 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,206 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,208 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,209 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,368 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-24 23:20:36,376 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,378 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,380 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,382 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,384 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,386 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,388 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,389 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,587 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,590 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,592 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,593 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,596 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,597 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,599 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,601 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,606 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,608 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,610 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,613 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,614 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,616 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,618 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,619 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,621 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,623 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,625 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,626 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:36,776 INFO L244 Elim1Store]: Index analysis took 109 ms [2020-10-24 23:20:36,905 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:20:36,905 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:36,906 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:20:36,908 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:37,092 INFO L244 Elim1Store]: Index analysis took 146 ms [2020-10-24 23:20:37,204 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:20:37,204 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:37,205 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:20:37,206 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:37,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:37,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:37,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:37,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:37,345 INFO L244 Elim1Store]: Index analysis took 118 ms [2020-10-24 23:20:37,461 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:20:37,462 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:37,463 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:20:37,465 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:37,725 INFO L244 Elim1Store]: Index analysis took 216 ms [2020-10-24 23:20:37,925 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 23:20:37,927 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:37,928 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 43 treesize of output 179 [2020-10-24 23:20:37,930 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:38,177 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:20:38,178 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:38,178 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:20:38,179 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:38,348 INFO L244 Elim1Store]: Index analysis took 132 ms [2020-10-24 23:20:38,455 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:20:38,455 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:38,456 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:20:38,457 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:38,640 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:20:38,640 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:38,641 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:20:38,644 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:20:38,655 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:20:38,656 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:20:38,657 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:38,660 INFO L545 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:41,418 WARN L193 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-10-24 23:20:41,419 INFO L625 ElimStorePlain]: treesize reduction 318, result has 69.4 percent of original size [2020-10-24 23:20:41,469 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 52 [2020-10-24 23:20:41,470 INFO L545 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:41,531 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 52 [2020-10-24 23:20:41,532 INFO L545 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:41,586 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 52 [2020-10-24 23:20:41,587 INFO L545 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:41,655 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 52 [2020-10-24 23:20:41,656 INFO L545 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:41,682 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 52 [2020-10-24 23:20:41,683 INFO L545 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:42,499 WARN L193 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-24 23:20:42,500 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:42,502 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Unsupported sort (_ BitVec 32) [2020-10-24 23:20:42,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091191514] [2020-10-24 23:20:42,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-24 23:20:42,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:20:42,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-24 23:20:42,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:20:43,128 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 33 [2020-10-24 23:20:43,129 INFO L350 Elim1Store]: treesize reduction 355, result has 14.5 percent of original size [2020-10-24 23:20:43,129 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 400 treesize of output 424 [2020-10-24 23:20:43,133 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:43,605 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 80 [2020-10-24 23:20:43,606 INFO L625 ElimStorePlain]: treesize reduction 325, result has 31.6 percent of original size [2020-10-24 23:20:43,608 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,610 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,611 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,612 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,614 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,615 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,617 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,618 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,620 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-24 23:20:43,620 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:123, output treesize:150 [2020-10-24 23:20:43,622 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,623 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,624 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,625 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,628 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,630 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,631 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,632 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,800 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,802 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,803 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,804 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,806 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,807 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,809 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:43,810 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,043 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,045 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,047 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,049 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,051 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,053 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,054 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,055 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,057 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,058 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,060 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,062 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,063 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,065 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,066 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,067 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,069 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,070 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,072 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,073 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:44,268 INFO L244 Elim1Store]: Index analysis took 142 ms [2020-10-24 23:20:44,416 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-24 23:20:44,416 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:44,417 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 40 treesize of output 154 [2020-10-24 23:20:44,419 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-24 23:20:44,420 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:20:44,421 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:20:44,422 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:20:44,423 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:44,432 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-24 23:20:44,433 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-10-24 23:20:44,434 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-10-24 23:20:44,434 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-10-24 23:20:44,435 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-24 23:20:44,435 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:20:44,437 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:20:44,438 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:20:44,439 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:44,448 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:20:44,449 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:20:44,450 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:20:44,451 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:44,459 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:44,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:44,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:44,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:44,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:44,611 INFO L244 Elim1Store]: Index analysis took 131 ms [2020-10-24 23:20:44,784 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-24 23:20:44,784 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:44,785 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 40 treesize of output 154 [2020-10-24 23:20:44,787 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-24 23:20:44,788 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:20:44,788 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:20:44,789 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:20:44,795 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:44,798 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:44,946 INFO L244 Elim1Store]: Index analysis took 120 ms [2020-10-24 23:20:45,098 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-24 23:20:45,099 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:45,099 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 40 treesize of output 154 [2020-10-24 23:20:45,100 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:45,339 INFO L244 Elim1Store]: Index analysis took 201 ms [2020-10-24 23:20:45,523 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-24 23:20:45,524 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:45,524 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 38 treesize of output 152 [2020-10-24 23:20:45,526 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-24 23:20:45,527 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:20:45,527 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:20:45,528 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:20:45,528 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:45,541 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:45,706 INFO L244 Elim1Store]: Index analysis took 136 ms [2020-10-24 23:20:45,949 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-24 23:20:45,949 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:45,950 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 38 treesize of output 152 [2020-10-24 23:20:45,951 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-24 23:20:45,952 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:20:45,953 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:20:45,953 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:20:45,954 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:45,958 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:46,150 INFO L244 Elim1Store]: Index analysis took 168 ms [2020-10-24 23:20:46,338 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-24 23:20:46,339 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:46,340 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 38 treesize of output 152 [2020-10-24 23:20:46,342 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:46,506 INFO L244 Elim1Store]: Index analysis took 119 ms [2020-10-24 23:20:46,789 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-24 23:20:46,789 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:46,790 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 43 treesize of output 211 [2020-10-24 23:20:46,792 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-10-24 23:20:46,792 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-24 23:20:46,802 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:20:46,804 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:20:46,807 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:20:46,808 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:46,811 INFO L545 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:48,337 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 129 DAG size of output: 92 [2020-10-24 23:20:48,338 INFO L625 ElimStorePlain]: treesize reduction 441, result has 59.9 percent of original size [2020-10-24 23:20:48,404 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:48,404 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 68 [2020-10-24 23:20:48,405 INFO L545 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:48,479 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:48,479 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 68 [2020-10-24 23:20:48,480 INFO L545 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:48,553 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:48,553 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 68 [2020-10-24 23:20:48,554 INFO L545 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:48,641 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:48,642 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 68 [2020-10-24 23:20:48,643 INFO L545 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:48,683 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:48,683 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 68 [2020-10-24 23:20:48,685 INFO L545 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:50,006 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-24 23:20:50,007 INFO L625 ElimStorePlain]: treesize reduction 140, result has 82.1 percent of original size [2020-10-24 23:20:50,010 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Unsupported sort (_ BitVec 32) [2020-10-24 23:20:50,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:20:50,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-24 23:20:50,010 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-24 23:20:50,010 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:20:50,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3,5 cvc4 --incremental --print-success --lang smt --rewrite-divk,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-24 23:20:50,648 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-24 23:20:50,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:20:50 BoogieIcfgContainer [2020-10-24 23:20:50,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:20:50,649 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:20:50,650 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:20:50,650 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:20:50,650 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:20:13" (3/4) ... [2020-10-24 23:20:50,656 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:20:50,656 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:20:50,662 INFO L168 Benchmark]: Toolchain (without parser) took 46028.79 ms. Allocated memory was 44.0 MB in the beginning and 67.1 MB in the end (delta: 23.1 MB). Free memory was 20.7 MB in the beginning and 17.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:20:50,662 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 44.0 MB. Free memory was 30.5 MB in the beginning and 30.5 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:20:50,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 519.19 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.0 MB in the beginning and 26.3 MB in the end (delta: -6.3 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:20:50,665 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.73 ms. Allocated memory is still 54.5 MB. Free memory was 26.3 MB in the beginning and 37.7 MB in the end (delta: -11.4 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:20:50,666 INFO L168 Benchmark]: Boogie Preprocessor took 85.82 ms. Allocated memory is still 54.5 MB. Free memory was 37.4 MB in the beginning and 35.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:20:50,666 INFO L168 Benchmark]: RCFGBuilder took 8202.30 ms. Allocated memory is still 54.5 MB. Free memory was 35.4 MB in the beginning and 25.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:20:50,667 INFO L168 Benchmark]: TraceAbstraction took 37111.36 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 24.7 MB in the beginning and 17.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. [2020-10-24 23:20:50,667 INFO L168 Benchmark]: Witness Printer took 7.12 ms. Allocated memory is still 67.1 MB. Free memory was 17.7 MB in the beginning and 17.7 MB in the end (delta: 40.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:20:50,670 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 44.0 MB. Free memory was 30.5 MB in the beginning and 30.5 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 519.19 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.0 MB in the beginning and 26.3 MB in the end (delta: -6.3 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.73 ms. Allocated memory is still 54.5 MB. Free memory was 26.3 MB in the beginning and 37.7 MB in the end (delta: -11.4 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 85.82 ms. Allocated memory is still 54.5 MB. Free memory was 37.4 MB in the beginning and 35.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 8202.30 ms. Allocated memory is still 54.5 MB. Free memory was 35.4 MB in the beginning and 25.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 37111.36 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 24.7 MB in the beginning and 17.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. * Witness Printer took 7.12 ms. Allocated memory is still 67.1 MB. Free memory was 17.7 MB in the beginning and 17.7 MB in the end (delta: 40.6 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: unable to decide satisfiability of path constraint. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L34-L39] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L41-L46] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L48-L52] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L54-L56] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L128] float x = -1.0f / 0.0f; [L59] float w, s1, s2, z; [L60] __int32_t ix, hx, id; [L63] ieee_float_shape_type gf_u; [L64] gf_u.value = (x) [L65] EXPR gf_u.word [L65] (hx) = gf_u.word [L67] ix = hx & 0x7fffffff [L68] COND TRUE ix >= 0x50800000 [L69] COND FALSE !(((ix) > 0x7f800000L)) [L71] COND FALSE !(hx > 0) [L74] EXPR atanhi_atan[3] [L74] EXPR atanlo_atan[3] [L74] return -atanhi_atan[3] - atanlo_atan[3]; [L129] float res = atan_float(x); [L131] COND TRUE res != -pi_o_2 [L3] __assert_fail("0", "float_req_bl_0621b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 37.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 28 SDslu, 7 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 34 ConstructedInterpolants, 6 QuantifiedInterpolants, 1316 SizeOfPredicates, 8 NumberOfNonLiveVariables, 188 ConjunctsInSsa, 9 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...