./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=/tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0621b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer --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=/tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0621b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer --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 [2020-11-29 21:34:13,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:34:13,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:34:13,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:34:13,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:34:13,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:34:13,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:34:13,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:34:13,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:34:13,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:34:13,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:34:13,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:34:13,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:34:13,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:34:13,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:34:13,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:34:13,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:34:13,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:34:13,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:34:13,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:34:13,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:34:13,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:34:13,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:34:13,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:34:13,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:34:13,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:34:13,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:34:13,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:34:13,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:34:13,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:34:13,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:34:13,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:34:13,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:34:13,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:34:13,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:34:13,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:34:13,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:34:13,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:34:13,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:34:13,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:34:13,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:34:13,818 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 21:34:13,849 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:34:13,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:34:13,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:34:13,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:34:13,853 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:34:13,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:34:13,854 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:34:13,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:34:13,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:34:13,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:34:13,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:34:13,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:34:13,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:34:13,856 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:34:13,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:34:13,856 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:34:13,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:34:13,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:34:13,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:34:13,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:34:13,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:34:13,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:34:13,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:34:13,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:34:13,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:34:13,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:34:13,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:34:13,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:34:13,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:34:13,861 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:/tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0a64e192e0bbeec977baf2f66a916968f631543 [2020-11-29 21:34:14,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:34:14,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:34:14,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:34:14,284 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:34:14,286 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:34:14,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0621b.c [2020-11-29 21:34:14,398 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/data/eb1fbaf41/739b49a190374df4ae68093e55036b20/FLAG890dc1ade [2020-11-29 21:34:15,126 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:34:15,127 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/sv-benchmarks/c/float-newlib/float_req_bl_0621b.c [2020-11-29 21:34:15,137 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/data/eb1fbaf41/739b49a190374df4ae68093e55036b20/FLAG890dc1ade [2020-11-29 21:34:15,458 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/data/eb1fbaf41/739b49a190374df4ae68093e55036b20 [2020-11-29 21:34:15,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:34:15,470 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:34:15,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:34:15,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:34:15,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:34:15,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:34:15" (1/1) ... [2020-11-29 21:34:15,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38cda03f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:15, skipping insertion in model container [2020-11-29 21:34:15,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:34:15" (1/1) ... [2020-11-29 21:34:15,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:34:15,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:34:15,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:34:15,911 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:34:15,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:34:16,028 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:34:16,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:16 WrapperNode [2020-11-29 21:34:16,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:34:16,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:34:16,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:34:16,031 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:34:16,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:16" (1/1) ... [2020-11-29 21:34:16,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:16" (1/1) ... [2020-11-29 21:34:16,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:34:16,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:34:16,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:34:16,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:34:16,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:16" (1/1) ... [2020-11-29 21:34:16,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:16" (1/1) ... [2020-11-29 21:34:16,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:16" (1/1) ... [2020-11-29 21:34:16,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:16" (1/1) ... [2020-11-29 21:34:16,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:16" (1/1) ... [2020-11-29 21:34:16,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:16" (1/1) ... [2020-11-29 21:34:16,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:16" (1/1) ... [2020-11-29 21:34:16,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:34:16,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:34:16,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:34:16,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:34:16,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:34:16,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:34:16,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:34:16,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 21:34:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 21:34:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 21:34:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:34:16,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:34:16,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 21:34:16,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-29 21:34:16,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 21:34:16,946 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:34:16,946 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 21:34:16,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:34:16 BoogieIcfgContainer [2020-11-29 21:34:16,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:34:16,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:34:16,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:34:16,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:34:16,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:34:15" (1/3) ... [2020-11-29 21:34:16,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d530225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:34:16, skipping insertion in model container [2020-11-29 21:34:16,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:16" (2/3) ... [2020-11-29 21:34:16,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d530225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:34:16, skipping insertion in model container [2020-11-29 21:34:16,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:34:16" (3/3) ... [2020-11-29 21:34:16,957 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0621b.c [2020-11-29 21:34:16,969 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:34:16,974 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 21:34:17,030 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 21:34:17,055 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:34:17,056 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:34:17,056 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:34:17,056 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:34:17,056 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:34:17,057 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:34:17,057 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:34:17,057 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:34:17,072 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-11-29 21:34:17,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 21:34:17,079 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:34:17,080 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:34:17,080 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:34:17,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:34:17,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1906423550, now seen corresponding path program 1 times [2020-11-29 21:34:17,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:34:17,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76473779] [2020-11-29 21:34:17,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:34:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:34:17,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:34:17,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76473779] [2020-11-29 21:34:17,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:34:17,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:34:17,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540327671] [2020-11-29 21:34:17,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 21:34:17,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:34:17,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 21:34:17,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:34:17,326 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-11-29 21:34:17,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:34:17,358 INFO L93 Difference]: Finished difference Result 63 states and 97 transitions. [2020-11-29 21:34:17,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 21:34:17,360 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-29 21:34:17,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:34:17,388 INFO L225 Difference]: With dead ends: 63 [2020-11-29 21:34:17,400 INFO L226 Difference]: Without dead ends: 29 [2020-11-29 21:34:17,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:34:17,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-29 21:34:17,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-29 21:34:17,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-29 21:34:17,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-11-29 21:34:17,460 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 9 [2020-11-29 21:34:17,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:34:17,461 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-11-29 21:34:17,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 21:34:17,461 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-11-29 21:34:17,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 21:34:17,463 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:34:17,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:34:17,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 21:34:17,464 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:34:17,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:34:17,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1481927263, now seen corresponding path program 1 times [2020-11-29 21:34:17,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:34:17,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711377972] [2020-11-29 21:34:17,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:34:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:34:17,634 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:34:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:34:17,746 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:34:17,802 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:34:17,803 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 21:34:17,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 21:34:17,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:34:17 BoogieIcfgContainer [2020-11-29 21:34:17,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:34:17,882 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:34:17,883 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:34:17,883 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:34:17,884 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:34:16" (3/4) ... [2020-11-29 21:34:17,887 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 21:34:17,888 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:34:17,893 INFO L168 Benchmark]: Toolchain (without parser) took 2419.09 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 77.2 MB in the beginning and 77.4 MB in the end (delta: -249.6 kB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-11-29 21:34:17,894 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 104.9 MB. Free memory is still 62.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:34:17,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.71 ms. Allocated memory is still 104.9 MB. Free memory was 76.9 MB in the beginning and 79.9 MB in the end (delta: -2.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:34:17,897 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.67 ms. Allocated memory is still 104.9 MB. Free memory was 79.9 MB in the beginning and 77.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:34:17,898 INFO L168 Benchmark]: Boogie Preprocessor took 94.04 ms. Allocated memory is still 104.9 MB. Free memory was 77.8 MB in the beginning and 75.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:34:17,899 INFO L168 Benchmark]: RCFGBuilder took 759.49 ms. Allocated memory is still 104.9 MB. Free memory was 75.7 MB in the beginning and 53.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:34:17,901 INFO L168 Benchmark]: TraceAbstraction took 932.24 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 53.4 MB in the beginning and 77.4 MB in the end (delta: -24.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:34:17,902 INFO L168 Benchmark]: Witness Printer took 5.51 ms. Allocated memory is still 125.8 MB. Free memory is still 77.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:34:17,914 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 104.9 MB. Free memory is still 62.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 557.71 ms. Allocated memory is still 104.9 MB. Free memory was 76.9 MB in the beginning and 79.9 MB in the end (delta: -2.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.67 ms. Allocated memory is still 104.9 MB. Free memory was 79.9 MB in the beginning and 77.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 94.04 ms. Allocated memory is still 104.9 MB. Free memory was 77.8 MB in the beginning and 75.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 759.49 ms. Allocated memory is still 104.9 MB. Free memory was 75.7 MB in the beginning and 53.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 932.24 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 53.4 MB in the beginning and 77.4 MB in the end (delta: -24.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.51 ms. Allocated memory is still 125.8 MB. Free memory is still 77.4 MB. 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: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, 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 [2020-11-29 21:34:20,714 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-11-29 21:34:20,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:34:20,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:34:20,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:34:20,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:34:20,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:34:20,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:34:20,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:34:20,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:34:20,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:34:20,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:34:20,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:34:20,862 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 21:34:20,916 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:34:20,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:34:20,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:34:20,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:34:20,921 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:34:20,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:34:20,922 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:34:20,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:34:20,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:34:20,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:34:20,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:34:20,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:34:20,924 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 21:34:20,924 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 21:34:20,924 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:34:20,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:34:20,925 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:34:20,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:34:20,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:34:20,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:34:20,926 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:34:20,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:34:20,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:34:20,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:34:20,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:34:20,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:34:20,927 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 21:34:20,927 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 21:34:20,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:34:20,928 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:34:20,928 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 21:34:20,928 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:/tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0a64e192e0bbeec977baf2f66a916968f631543 [2020-11-29 21:34:21,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:34:21,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:34:21,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:34:21,397 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:34:21,398 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:34:21,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0621b.c [2020-11-29 21:34:21,474 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/data/07c98772b/d5b38963ea2a40f587b5a2e2b112d85f/FLAG309fda8e4 [2020-11-29 21:34:22,104 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:34:22,109 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/sv-benchmarks/c/float-newlib/float_req_bl_0621b.c [2020-11-29 21:34:22,121 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/data/07c98772b/d5b38963ea2a40f587b5a2e2b112d85f/FLAG309fda8e4 [2020-11-29 21:34:22,457 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/data/07c98772b/d5b38963ea2a40f587b5a2e2b112d85f [2020-11-29 21:34:22,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:34:22,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:34:22,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:34:22,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:34:22,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:34:22,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:34:22" (1/1) ... [2020-11-29 21:34:22,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f040992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:22, skipping insertion in model container [2020-11-29 21:34:22,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:34:22" (1/1) ... [2020-11-29 21:34:22,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:34:22,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:34:22,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:34:22,698 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:34:22,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:34:22,843 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:34:22,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:22 WrapperNode [2020-11-29 21:34:22,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:34:22,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:34:22,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:34:22,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:34:22,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:22" (1/1) ... [2020-11-29 21:34:22,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:22" (1/1) ... [2020-11-29 21:34:22,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:34:22,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:34:22,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:34:22,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:34:22,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:22" (1/1) ... [2020-11-29 21:34:22,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:22" (1/1) ... [2020-11-29 21:34:22,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:22" (1/1) ... [2020-11-29 21:34:22,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:22" (1/1) ... [2020-11-29 21:34:22,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:22" (1/1) ... [2020-11-29 21:34:22,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:22" (1/1) ... [2020-11-29 21:34:22,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:22" (1/1) ... [2020-11-29 21:34:23,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:34:23,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:34:23,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:34:23,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:34:23,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:34:23,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-11-29 21:34:23,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 21:34:23,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:34:23,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-29 21:34:23,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 21:34:23,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:34:23,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:34:23,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-29 21:34:23,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 21:34:23,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 21:34:33,413 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:34:33,415 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 21:34:33,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:34:33 BoogieIcfgContainer [2020-11-29 21:34:33,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:34:33,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:34:33,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:34:33,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:34:33,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:34:22" (1/3) ... [2020-11-29 21:34:33,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6089a9f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:34:33, skipping insertion in model container [2020-11-29 21:34:33,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:22" (2/3) ... [2020-11-29 21:34:33,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6089a9f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:34:33, skipping insertion in model container [2020-11-29 21:34:33,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:34:33" (3/3) ... [2020-11-29 21:34:33,426 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0621b.c [2020-11-29 21:34:33,438 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:34:33,443 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 21:34:33,457 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 21:34:33,486 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:34:33,486 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:34:33,486 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:34:33,486 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:34:33,487 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:34:33,487 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:34:33,487 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:34:33,487 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:34:33,501 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-11-29 21:34:33,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 21:34:33,509 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:34:33,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:34:33,510 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:34:33,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:34:33,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1906423550, now seen corresponding path program 1 times [2020-11-29 21:34:33,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:34:33,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458229927] [2020-11-29 21:34:33,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 21:34:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:34:34,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 21:34:34,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:34:34,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:34:34,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:34:34,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:34:34,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458229927] [2020-11-29 21:34:34,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:34:34,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 21:34:34,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115414486] [2020-11-29 21:34:34,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 21:34:34,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:34:34,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 21:34:34,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:34:34,613 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-11-29 21:34:34,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:34:34,633 INFO L93 Difference]: Finished difference Result 63 states and 97 transitions. [2020-11-29 21:34:34,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 21:34:34,635 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-29 21:34:34,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:34:34,646 INFO L225 Difference]: With dead ends: 63 [2020-11-29 21:34:34,646 INFO L226 Difference]: Without dead ends: 29 [2020-11-29 21:34:34,659 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 [2020-11-29 21:34:34,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-29 21:34:34,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-29 21:34:34,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-29 21:34:34,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-11-29 21:34:34,694 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 9 [2020-11-29 21:34:34,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:34:34,694 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-11-29 21:34:34,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 21:34:34,695 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-11-29 21:34:34,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 21:34:34,695 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:34:34,696 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:34:34,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 21:34:34,921 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:34:34,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:34:34,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1481927263, now seen corresponding path program 1 times [2020-11-29 21:34:34,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:34:34,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786643008] [2020-11-29 21:34:34,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 21:34:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:34:36,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 21:34:36,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:34:36,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:34:36,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:34:36,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:34:36,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786643008] [2020-11-29 21:34:36,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:34:36,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 21:34:36,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923251113] [2020-11-29 21:34:36,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 21:34:36,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:34:36,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 21:34:36,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 21:34:36,467 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand 8 states. [2020-11-29 21:34:36,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:34:36,784 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2020-11-29 21:34:36,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 21:34:36,791 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-11-29 21:34:36,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:34:36,792 INFO L225 Difference]: With dead ends: 33 [2020-11-29 21:34:36,792 INFO L226 Difference]: Without dead ends: 12 [2020-11-29 21:34:36,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-29 21:34:36,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-29 21:34:36,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-29 21:34:36,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-29 21:34:36,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-11-29 21:34:36,798 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2020-11-29 21:34:36,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:34:36,798 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-11-29 21:34:36,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 21:34:36,798 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-11-29 21:34:36,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 21:34:36,799 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:34:36,799 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:34:36,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 21:34:37,000 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:34:37,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:34:37,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1305344773, now seen corresponding path program 1 times [2020-11-29 21:34:37,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:34:37,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876619048] [2020-11-29 21:34:37,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 21:34:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:34:38,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 21 conjunts are in the unsatisfiable core [2020-11-29 21:34:38,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:34:38,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:38,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:39,325 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 39 [2020-11-29 21:34:39,327 INFO L350 Elim1Store]: treesize reduction 339, result has 16.7 percent of original size [2020-11-29 21:34:39,328 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 [2020-11-29 21:34:39,334 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-11-29 21:34:39,335 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:34:39,344 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 [2020-11-29 21:34:39,346 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:34:39,355 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 [2020-11-29 21:34:39,355 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:34:39,358 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 [2020-11-29 21:34:39,358 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:34:39,363 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 3, 2, 3, 2, 3, 2, 2, 1] term [2020-11-29 21:34:39,363 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:34:39,366 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 3, 1] term [2020-11-29 21:34:39,367 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:34:39,371 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 1] term [2020-11-29 21:34:39,374 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:34:39,380 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 1] term [2020-11-29 21:34:39,381 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:34:39,386 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 3, 2, 3, 2, 2, 1] term [2020-11-29 21:34:39,391 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:34:39,393 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 3, 2, 2, 1] term [2020-11-29 21:34:39,398 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:34:39,400 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 2, 1] term [2020-11-29 21:34:39,402 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:34:39,405 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 1] term [2020-11-29 21:34:39,406 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:34:39,409 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 1] term [2020-11-29 21:34:39,409 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:34:39,422 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 21:34:40,548 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 156 DAG size of output: 110 [2020-11-29 21:34:40,550 INFO L625 ElimStorePlain]: treesize reduction 2434, result has 8.3 percent of original size [2020-11-29 21:34:40,568 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,578 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,582 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,586 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,595 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,621 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,627 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,631 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,640 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. [2020-11-29 21:34:40,643 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:200, output treesize:219 [2020-11-29 21:34:40,650 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,664 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,670 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,674 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,685 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,688 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,692 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,696 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,871 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-11-29 21:34:40,888 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,893 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,897 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,900 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,906 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,909 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,919 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:40,923 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,184 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,200 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,203 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,209 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,215 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,218 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,222 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,227 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,233 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,236 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,242 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,248 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,251 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,255 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,258 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,260 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,266 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,273 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,277 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,281 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,284 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,290 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,293 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,297 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,300 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,308 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,312 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,323 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,329 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,331 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,335 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,341 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,344 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,349 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,351 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,358 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,362 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,367 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,369 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,380 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,385 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,390 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,396 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,399 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,401 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,407 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,409 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,413 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,419 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:34:41,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:41,860 INFO L244 Elim1Store]: Index analysis took 330 ms [2020-11-29 21:34:42,280 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-29 21:34:42,282 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:34:42,283 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 [2020-11-29 21:34:42,286 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 21:34:42,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:42,581 INFO L244 Elim1Store]: Index analysis took 248 ms [2020-11-29 21:34:42,810 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 21:34:42,811 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:34:42,812 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 [2020-11-29 21:34:42,815 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 21:34:42,816 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 21:34:42,819 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 21:34:42,820 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:34:42,826 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 21:34:42,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:43,168 INFO L244 Elim1Store]: Index analysis took 290 ms [2020-11-29 21:34:43,361 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 21:34:43,362 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:34:43,362 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 [2020-11-29 21:34:43,365 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 21:34:43,374 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 21:34:43,377 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 21:34:43,378 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:34:43,387 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-29 21:34:43,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:43,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:43,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:43,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:43,862 INFO L244 Elim1Store]: Index analysis took 420 ms [2020-11-29 21:34:44,104 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 21:34:44,105 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:34:44,106 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 [2020-11-29 21:34:44,108 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-11-29 21:34:44,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:44,414 INFO L244 Elim1Store]: Index analysis took 256 ms [2020-11-29 21:34:44,549 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 21:34:44,550 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:34:44,550 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 [2020-11-29 21:34:44,552 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-11-29 21:34:44,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:44,904 INFO L244 Elim1Store]: Index analysis took 300 ms [2020-11-29 21:34:45,101 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 21:34:45,105 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:34:45,105 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 [2020-11-29 21:34:45,109 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 21:34:45,110 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 21:34:45,111 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 21:34:45,111 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:34:45,124 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-11-29 21:34:45,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:45,315 INFO L244 Elim1Store]: Index analysis took 144 ms [2020-11-29 21:34:45,479 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 21:34:45,479 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:34:45,480 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 [2020-11-29 21:34:45,482 INFO L545 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-11-29 21:34:50,255 WARN L193 SmtUtils]: Spent 4.77 s on a formula simplification. DAG size of input: 140 DAG size of output: 124 [2020-11-29 21:34:50,256 INFO L625 ElimStorePlain]: treesize reduction 470, result has 68.0 percent of original size [2020-11-29 21:34:50,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:50,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:50,437 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 21:34:50,448 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:34:50,449 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 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 [2020-11-29 21:34:50,451 INFO L545 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-11-29 21:34:50,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:50,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:50,611 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 21:34:50,620 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:34:50,620 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 [2020-11-29 21:34:50,622 INFO L545 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-11-29 21:34:50,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:50,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:50,822 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 21:34:50,834 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:34:50,835 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 [2020-11-29 21:34:50,836 INFO L545 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-11-29 21:34:50,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:50,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:50,990 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 21:34:51,000 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:34:51,001 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 [2020-11-29 21:34:51,003 INFO L545 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-11-29 21:34:51,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:51,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:34:51,093 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 21:34:51,105 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:34:51,105 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 [2020-11-29 21:34:51,107 INFO L545 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-11-29 21:34:53,532 WARN L193 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2020-11-29 21:34:53,533 INFO L625 ElimStorePlain]: treesize reduction 90, result has 91.6 percent of original size [2020-11-29 21:34:53,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876619048] [2020-11-29 21:34:53,540 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Unsupported sort (_ BitVec 32) [2020-11-29 21:34:53,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1319366145] [2020-11-29 21:34:53,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/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 [2020-11-29 21:35:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:35:00,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 21:35:00,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:35:01,346 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 39 [2020-11-29 21:35:01,347 INFO L350 Elim1Store]: treesize reduction 355, result has 16.1 percent of original size [2020-11-29 21:35:01,347 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 [2020-11-29 21:35:01,350 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 [2020-11-29 21:35:01,350 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:35:01,351 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 5, 1] term [2020-11-29 21:35:01,352 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:35:01,352 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 5, 1] term [2020-11-29 21:35:01,353 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:35:01,353 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 5, 1] term [2020-11-29 21:35:01,354 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:35:01,355 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 1] term [2020-11-29 21:35:01,355 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:35:01,357 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 [2020-11-29 21:35:01,357 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:35:01,358 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 5, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 21:35:01,358 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:35:01,359 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 5, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 21:35:01,360 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:35:01,370 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 [2020-11-29 21:35:01,370 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:35:01,377 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:02,313 WARN L193 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 86 [2020-11-29 21:35:02,314 INFO L625 ElimStorePlain]: treesize reduction 1710, result has 8.7 percent of original size [2020-11-29 21:35:02,317 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,320 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,322 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,333 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,336 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,338 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,341 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,343 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,345 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. [2020-11-29 21:35:02,345 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:140, output treesize:163 [2020-11-29 21:35:02,348 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,350 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,352 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,353 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,356 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,357 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,360 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,361 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,553 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-11-29 21:35:02,561 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,563 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,565 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,567 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,570 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,572 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,574 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,576 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,807 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,810 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,812 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,814 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,816 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,818 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,821 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,823 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,825 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,827 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,830 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,833 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,835 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,838 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,840 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,842 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,845 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,847 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,849 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:02,851 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 21:35:03,073 INFO L244 Elim1Store]: Index analysis took 173 ms [2020-11-29 21:35:03,256 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 21:35:03,257 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:03,258 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 [2020-11-29 21:35:03,259 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:03,447 INFO L244 Elim1Store]: Index analysis took 162 ms [2020-11-29 21:35:03,633 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 21:35:03,633 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:03,634 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 [2020-11-29 21:35:03,635 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:03,800 INFO L244 Elim1Store]: Index analysis took 130 ms [2020-11-29 21:35:04,002 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 21:35:04,003 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:04,003 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 [2020-11-29 21:35:04,012 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:04,192 INFO L244 Elim1Store]: Index analysis took 143 ms [2020-11-29 21:35:04,336 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 21:35:04,337 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:04,337 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 [2020-11-29 21:35:04,338 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:04,662 INFO L244 Elim1Store]: Index analysis took 272 ms [2020-11-29 21:35:04,982 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-29 21:35:04,983 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:04,983 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 [2020-11-29 21:35:04,986 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 21:35:04,987 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 21:35:04,988 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 21:35:04,988 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 21:35:04,989 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:35:05,003 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:05,237 INFO L244 Elim1Store]: Index analysis took 199 ms [2020-11-29 21:35:05,355 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 21:35:05,355 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:05,356 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 [2020-11-29 21:35:05,357 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:05,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:35:05,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:35:05,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:35:05,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:35:05,579 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 21:35:05,579 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:05,580 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 [2020-11-29 21:35:05,581 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 21:35:05,593 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 21:35:05,595 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 21:35:05,596 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:35:05,599 INFO L545 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:09,145 WARN L193 SmtUtils]: Spent 3.55 s on a formula simplification. DAG size of input: 104 DAG size of output: 98 [2020-11-29 21:35:09,146 INFO L625 ElimStorePlain]: treesize reduction 328, result has 68.7 percent of original size [2020-11-29 21:35:09,213 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 [2020-11-29 21:35:09,214 INFO L545 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:09,275 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 [2020-11-29 21:35:09,275 INFO L545 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:09,406 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 [2020-11-29 21:35:09,407 INFO L545 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:09,492 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 [2020-11-29 21:35:09,493 INFO L545 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:09,540 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 [2020-11-29 21:35:09,540 INFO L545 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:10,492 WARN L193 SmtUtils]: Spent 950.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-11-29 21:35:10,492 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:10,495 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Unsupported sort (_ BitVec 32) [2020-11-29 21:35:10,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645728613] [2020-11-29 21:35:10,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_88f1d46c-689c-4413-85a7-dfbcaf50bdc0/bin/uautomizer/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 [2020-11-29 21:35:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:35:10,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-29 21:35:10,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:35:11,121 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 33 [2020-11-29 21:35:11,121 INFO L350 Elim1Store]: treesize reduction 355, result has 14.5 percent of original size [2020-11-29 21:35:11,121 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 [2020-11-29 21:35:11,131 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:11,736 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 80 [2020-11-29 21:35:11,737 INFO L625 ElimStorePlain]: treesize reduction 325, result has 31.6 percent of original size [2020-11-29 21:35:11,738 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,740 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,741 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,742 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,744 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,745 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,747 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,748 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,750 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. [2020-11-29 21:35:11,750 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:123, output treesize:150 [2020-11-29 21:35:11,752 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,753 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,755 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,756 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,757 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,758 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,760 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,761 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,930 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,932 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,933 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,934 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,936 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,938 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,939 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:11,941 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,194 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,196 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,197 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,201 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,204 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,205 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,207 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,208 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,210 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,211 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,213 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,215 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,216 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,218 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,219 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,220 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,225 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,227 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,228 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,230 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 21:35:12,571 INFO L244 Elim1Store]: Index analysis took 301 ms [2020-11-29 21:35:12,869 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-11-29 21:35:12,869 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:12,870 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 [2020-11-29 21:35:12,873 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 21:35:12,874 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 21:35:12,875 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 21:35:12,876 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 21:35:12,879 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:35:12,883 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 21:35:12,884 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-11-29 21:35:12,884 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-11-29 21:35:12,885 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 21:35:12,886 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 21:35:12,894 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 21:35:12,896 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 21:35:12,897 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 21:35:12,898 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:35:12,904 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 21:35:12,905 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 21:35:12,907 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 21:35:12,907 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:35:12,912 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:13,187 INFO L244 Elim1Store]: Index analysis took 238 ms [2020-11-29 21:35:13,358 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-11-29 21:35:13,359 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:13,359 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 [2020-11-29 21:35:13,361 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 21:35:13,362 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 21:35:13,362 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 21:35:13,363 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 21:35:13,363 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:35:13,365 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:13,551 INFO L244 Elim1Store]: Index analysis took 159 ms [2020-11-29 21:35:13,768 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-11-29 21:35:13,768 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:13,768 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 [2020-11-29 21:35:13,770 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:13,994 INFO L244 Elim1Store]: Index analysis took 179 ms [2020-11-29 21:35:14,205 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-11-29 21:35:14,205 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:14,206 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 [2020-11-29 21:35:14,208 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 21:35:14,209 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 21:35:14,209 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 21:35:14,210 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 21:35:14,211 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:35:14,223 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:14,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:35:14,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:35:14,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:35:14,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:35:14,421 INFO L244 Elim1Store]: Index analysis took 164 ms [2020-11-29 21:35:14,647 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-11-29 21:35:14,648 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:14,648 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 [2020-11-29 21:35:14,650 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 21:35:14,651 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 21:35:14,652 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 21:35:14,652 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 21:35:14,667 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:35:14,672 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:35:14,674 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:14,878 INFO L244 Elim1Store]: Index analysis took 167 ms [2020-11-29 21:35:15,108 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-11-29 21:35:15,108 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:15,109 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 [2020-11-29 21:35:15,110 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:15,286 INFO L244 Elim1Store]: Index analysis took 113 ms [2020-11-29 21:35:15,602 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-11-29 21:35:15,602 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:15,602 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 [2020-11-29 21:35:15,604 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 21:35:15,605 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 21:35:15,613 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 21:35:15,615 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 21:35:15,616 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 21:35:15,617 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:35:15,622 INFO L545 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:17,394 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 131 DAG size of output: 92 [2020-11-29 21:35:17,395 INFO L625 ElimStorePlain]: treesize reduction 451, result has 59.4 percent of original size [2020-11-29 21:35:17,474 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:17,475 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 [2020-11-29 21:35:17,475 INFO L545 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:17,563 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:17,564 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 [2020-11-29 21:35:17,565 INFO L545 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:17,646 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:17,646 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 [2020-11-29 21:35:17,647 INFO L545 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:17,728 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:17,728 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 [2020-11-29 21:35:17,729 INFO L545 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:17,781 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:35:17,781 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 [2020-11-29 21:35:17,782 INFO L545 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-11-29 21:35:19,418 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-11-29 21:35:19,419 INFO L625 ElimStorePlain]: treesize reduction 140, result has 82.1 percent of original size [2020-11-29 21:35:19,421 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Unsupported sort (_ BitVec 32) [2020-11-29 21:35:19,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:35:19,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-11-29 21:35:19,422 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-11-29 21:35:19,422 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 21:35:20,037 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 [2020-11-29 21:35:20,057 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-11-29 21:35:20,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:35:20 BoogieIcfgContainer [2020-11-29 21:35:20,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:35:20,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:35:20,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:35:20,061 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:35:20,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:34:33" (3/4) ... [2020-11-29 21:35:20,066 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 21:35:20,066 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:35:20,068 INFO L168 Benchmark]: Toolchain (without parser) took 57605.97 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 33.6 MB in the beginning and 48.6 MB in the end (delta: -14.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:35:20,069 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 54.5 MB. Free memory was 37.0 MB in the beginning and 36.9 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:35:20,070 INFO L168 Benchmark]: CACSL2BoogieTranslator took 381.58 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.4 MB in the beginning and 48.7 MB in the end (delta: -15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 21:35:20,070 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.44 ms. Allocated memory is still 67.1 MB. Free memory was 48.7 MB in the beginning and 46.5 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:35:20,073 INFO L168 Benchmark]: Boogie Preprocessor took 87.27 ms. Allocated memory is still 67.1 MB. Free memory was 46.5 MB in the beginning and 44.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:35:20,073 INFO L168 Benchmark]: RCFGBuilder took 10412.81 ms. Allocated memory is still 67.1 MB. Free memory was 44.2 MB in the beginning and 48.2 MB in the end (delta: -4.0 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:35:20,074 INFO L168 Benchmark]: TraceAbstraction took 46640.23 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 47.9 MB in the beginning and 49.5 MB in the end (delta: -1.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 16.1 GB. [2020-11-29 21:35:20,074 INFO L168 Benchmark]: Witness Printer took 5.62 ms. Allocated memory is still 81.8 MB. Free memory was 49.5 MB in the beginning and 48.6 MB in the end (delta: 907.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:35:20,077 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 54.5 MB. Free memory was 37.0 MB in the beginning and 36.9 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 381.58 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.4 MB in the beginning and 48.7 MB in the end (delta: -15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.44 ms. Allocated memory is still 67.1 MB. Free memory was 48.7 MB in the beginning and 46.5 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 87.27 ms. Allocated memory is still 67.1 MB. Free memory was 46.5 MB in the beginning and 44.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10412.81 ms. Allocated memory is still 67.1 MB. Free memory was 44.2 MB in the beginning and 48.2 MB in the end (delta: -4.0 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 46640.23 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 47.9 MB in the beginning and 49.5 MB in the end (delta: -1.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.62 ms. Allocated memory is still 81.8 MB. Free memory was 49.5 MB in the beginning and 48.6 MB in the end (delta: 907.7 kB). Peak memory consumption was 2.1 MB. 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: 46.5s, 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, 0.4s 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: 0.0s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 0.6s 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...