./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.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_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/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 c46c21346fa3a14a7874ed8ff9a4a0a79ae6f208 .................................................................................................................................................................................................................................................................................................................... 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_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/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 c46c21346fa3a14a7874ed8ff9a4a0a79ae6f208 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 22:21:35,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:21:35,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:21:35,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:21:35,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:21:35,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:21:35,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:21:35,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:21:35,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:21:35,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:21:35,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:21:35,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:21:35,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:21:35,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:21:35,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:21:35,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:21:35,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:21:35,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:21:35,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:21:35,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:21:35,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:21:35,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:21:35,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:21:35,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:21:35,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:21:35,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:21:35,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:21:35,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:21:35,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:21:35,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:21:35,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:21:35,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:21:35,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:21:35,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:21:35,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:21:35,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:21:35,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:21:35,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:21:35,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:21:35,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:21:35,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:21:35,512 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 22:21:35,551 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:21:35,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:21:35,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:21:35,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:21:35,554 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:21:35,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:21:35,555 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:21:35,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:21:35,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:21:35,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:21:35,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:21:35,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:21:35,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:21:35,558 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:21:35,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:21:35,558 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:21:35,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:21:35,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:21:35,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:21:35,559 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:21:35,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:21:35,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:21:35,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:21:35,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:21:35,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:21:35,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:21:35,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:21:35,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:21:35,561 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:21:35,562 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_9270b353-e8dc-4762-b8a1-06d0166f1b62/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46c21346fa3a14a7874ed8ff9a4a0a79ae6f208 [2020-11-29 22:21:35,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:21:35,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:21:35,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:21:35,903 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:21:35,909 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:21:35,911 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c [2020-11-29 22:21:35,989 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/data/6f0fbb1ea/2077ccf585b24a478a05f6571c978b3a/FLAG09fcf0990 [2020-11-29 22:21:36,591 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:21:36,595 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c [2020-11-29 22:21:36,608 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/data/6f0fbb1ea/2077ccf585b24a478a05f6571c978b3a/FLAG09fcf0990 [2020-11-29 22:21:36,934 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/data/6f0fbb1ea/2077ccf585b24a478a05f6571c978b3a [2020-11-29 22:21:36,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:21:36,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:21:36,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:21:36,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:21:36,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:21:36,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:21:36" (1/1) ... [2020-11-29 22:21:36,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@529d4746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:36, skipping insertion in model container [2020-11-29 22:21:36,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:21:36" (1/1) ... [2020-11-29 22:21:36,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:21:36,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:21:37,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:21:37,235 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:21:37,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:21:37,329 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:21:37,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:37 WrapperNode [2020-11-29 22:21:37,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:21:37,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:21:37,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:21:37,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:21:37,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:37" (1/1) ... [2020-11-29 22:21:37,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:37" (1/1) ... [2020-11-29 22:21:37,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:21:37,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:21:37,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:21:37,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:21:37,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:37" (1/1) ... [2020-11-29 22:21:37,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:37" (1/1) ... [2020-11-29 22:21:37,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:37" (1/1) ... [2020-11-29 22:21:37,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:37" (1/1) ... [2020-11-29 22:21:37,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:37" (1/1) ... [2020-11-29 22:21:37,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:37" (1/1) ... [2020-11-29 22:21:37,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:37" (1/1) ... [2020-11-29 22:21:37,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:21:37,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:21:37,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:21:37,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:21:37,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/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 22:21:37,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:21:37,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:21:37,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 22:21:37,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 22:21:37,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 22:21:37,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:21:37,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:21:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 22:21:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-29 22:21:37,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 22:21:38,117 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:21:38,117 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 22:21:38,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:21:38 BoogieIcfgContainer [2020-11-29 22:21:38,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:21:38,122 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:21:38,122 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:21:38,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:21:38,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:21:36" (1/3) ... [2020-11-29 22:21:38,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e75749f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:21:38, skipping insertion in model container [2020-11-29 22:21:38,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:37" (2/3) ... [2020-11-29 22:21:38,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e75749f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:21:38, skipping insertion in model container [2020-11-29 22:21:38,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:21:38" (3/3) ... [2020-11-29 22:21:38,128 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0621a.c [2020-11-29 22:21:38,139 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:21:38,144 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 22:21:38,200 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 22:21:38,250 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:21:38,250 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:21:38,250 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:21:38,250 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:21:38,251 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:21:38,251 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:21:38,251 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:21:38,251 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:21:38,265 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-11-29 22:21:38,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 22:21:38,271 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:21:38,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:21:38,272 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:21:38,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:21:38,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1906423550, now seen corresponding path program 1 times [2020-11-29 22:21:38,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:21:38,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270954816] [2020-11-29 22:21:38,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:21:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:21:38,499 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 22:21:38,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270954816] [2020-11-29 22:21:38,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:21:38,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:21:38,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828040533] [2020-11-29 22:21:38,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 22:21:38,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:21:38,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 22:21:38,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:21:38,524 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-11-29 22:21:38,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:21:38,548 INFO L93 Difference]: Finished difference Result 63 states and 97 transitions. [2020-11-29 22:21:38,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:21:38,550 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-29 22:21:38,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:21:38,571 INFO L225 Difference]: With dead ends: 63 [2020-11-29 22:21:38,571 INFO L226 Difference]: Without dead ends: 29 [2020-11-29 22:21:38,574 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 22:21:38,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-29 22:21:38,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-29 22:21:38,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-29 22:21:38,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-11-29 22:21:38,614 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 9 [2020-11-29 22:21:38,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:21:38,615 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-11-29 22:21:38,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 22:21:38,615 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-11-29 22:21:38,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 22:21:38,616 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:21:38,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:21:38,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:21:38,617 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:21:38,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:21:38,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1481927263, now seen corresponding path program 1 times [2020-11-29 22:21:38,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:21:38,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189755705] [2020-11-29 22:21:38,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:21:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:21:38,748 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:21:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:21:38,825 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:21:38,867 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:21:38,868 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 22:21:38,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 22:21:38,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:21:38 BoogieIcfgContainer [2020-11-29 22:21:38,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:21:38,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:21:38,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:21:38,932 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:21:38,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:21:38" (3/4) ... [2020-11-29 22:21:38,936 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 22:21:38,936 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:21:38,940 INFO L168 Benchmark]: Toolchain (without parser) took 1997.66 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 72.5 MB in the beginning and 80.5 MB in the end (delta: -8.0 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:21:38,941 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory was 58.1 MB in the beginning and 58.0 MB in the end (delta: 48.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:21:38,942 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.59 ms. Allocated memory is still 100.7 MB. Free memory was 72.3 MB in the beginning and 74.8 MB in the end (delta: -2.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:21:38,943 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.61 ms. Allocated memory is still 100.7 MB. Free memory was 74.8 MB in the beginning and 72.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:21:38,943 INFO L168 Benchmark]: Boogie Preprocessor took 56.77 ms. Allocated memory is still 100.7 MB. Free memory was 72.6 MB in the beginning and 70.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:21:38,945 INFO L168 Benchmark]: RCFGBuilder took 656.06 ms. Allocated memory is still 100.7 MB. Free memory was 70.6 MB in the beginning and 48.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:21:38,946 INFO L168 Benchmark]: TraceAbstraction took 809.87 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 48.3 MB in the beginning and 81.1 MB in the end (delta: -32.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:21:38,946 INFO L168 Benchmark]: Witness Printer took 4.11 ms. Allocated memory is still 130.0 MB. Free memory is still 80.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:21:38,955 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory was 58.1 MB in the beginning and 58.0 MB in the end (delta: 48.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 389.59 ms. Allocated memory is still 100.7 MB. Free memory was 72.3 MB in the beginning and 74.8 MB in the end (delta: -2.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.61 ms. Allocated memory is still 100.7 MB. Free memory was 74.8 MB in the beginning and 72.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.77 ms. Allocated memory is still 100.7 MB. Free memory was 72.6 MB in the beginning and 70.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 656.06 ms. Allocated memory is still 100.7 MB. Free memory was 70.6 MB in the beginning and 48.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 809.87 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 48.3 MB in the beginning and 81.1 MB in the end (delta: -32.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.11 ms. Allocated memory is still 130.0 MB. Free memory is still 80.5 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 132, 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] [L129] 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] [L130] float res = atan_float(x); [L132] 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_0621a.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: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:21:41,417 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-11-29 22:21:41,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:21:41,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:21:41,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:21:41,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:21:41,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:21:41,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:21:41,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:21:41,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:21:41,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:21:41,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:21:41,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:21:41,529 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 22:21:41,593 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:21:41,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:21:41,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:21:41,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:21:41,596 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:21:41,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:21:41,597 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:21:41,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:21:41,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:21:41,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:21:41,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:21:41,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:21:41,600 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 22:21:41,600 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 22:21:41,600 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:21:41,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:21:41,601 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:21:41,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:21:41,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:21:41,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:21:41,602 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:21:41,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:21:41,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:21:41,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:21:41,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:21:41,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:21:41,604 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 22:21:41,604 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 22:21:41,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:21:41,605 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:21:41,605 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 22:21:41,605 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_9270b353-e8dc-4762-b8a1-06d0166f1b62/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46c21346fa3a14a7874ed8ff9a4a0a79ae6f208 [2020-11-29 22:21:42,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:21:42,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:21:42,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:21:42,070 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:21:42,071 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:21:42,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c [2020-11-29 22:21:42,144 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/data/0c2827de7/253b4d5fdcce45488972b45d9ed0ece7/FLAGa0f6861ef [2020-11-29 22:21:42,726 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:21:42,727 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c [2020-11-29 22:21:42,737 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/data/0c2827de7/253b4d5fdcce45488972b45d9ed0ece7/FLAGa0f6861ef [2020-11-29 22:21:43,093 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/bin/uautomizer/data/0c2827de7/253b4d5fdcce45488972b45d9ed0ece7 [2020-11-29 22:21:43,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:21:43,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:21:43,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:21:43,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:21:43,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:21:43,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:21:43" (1/1) ... [2020-11-29 22:21:43,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@614fe542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:43, skipping insertion in model container [2020-11-29 22:21:43,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:21:43" (1/1) ... [2020-11-29 22:21:43,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:21:43,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:21:43,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:21:43,369 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:21:43,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:21:43,494 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:21:43,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:43 WrapperNode [2020-11-29 22:21:43,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:21:43,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:21:43,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:21:43,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:21:43,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:43" (1/1) ... [2020-11-29 22:21:43,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:43" (1/1) ... [2020-11-29 22:21:43,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:21:43,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:21:43,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:21:43,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:21:43,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:43" (1/1) ... [2020-11-29 22:21:43,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:43" (1/1) ... [2020-11-29 22:21:43,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:43" (1/1) ... [2020-11-29 22:21:43,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:43" (1/1) ... [2020-11-29 22:21:43,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:43" (1/1) ... [2020-11-29 22:21:43,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:43" (1/1) ... [2020-11-29 22:21:43,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:43" (1/1) ... [2020-11-29 22:21:43,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:21:43,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:21:43,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:21:43,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:21:43,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/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 22:21:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-11-29 22:21:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 22:21:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:21:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-29 22:21:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 22:21:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:21:43,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:21:43,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-29 22:21:43,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 22:21:43,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 22:21:52,049 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:21:52,050 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 22:21:52,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:21:52 BoogieIcfgContainer [2020-11-29 22:21:52,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:21:52,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:21:52,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:21:52,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:21:52,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:21:43" (1/3) ... [2020-11-29 22:21:52,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcdf0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:21:52, skipping insertion in model container [2020-11-29 22:21:52,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:21:43" (2/3) ... [2020-11-29 22:21:52,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcdf0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:21:52, skipping insertion in model container [2020-11-29 22:21:52,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:21:52" (3/3) ... [2020-11-29 22:21:52,060 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0621a.c [2020-11-29 22:21:52,070 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:21:52,074 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 22:21:52,086 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 22:21:52,107 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:21:52,107 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:21:52,108 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:21:52,108 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:21:52,108 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:21:52,108 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:21:52,108 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:21:52,108 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:21:52,119 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-11-29 22:21:52,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 22:21:52,124 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:21:52,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:21:52,125 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:21:52,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:21:52,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1906423550, now seen corresponding path program 1 times [2020-11-29 22:21:52,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:21:52,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597373093] [2020-11-29 22:21:52,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/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 22:21:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:21:53,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 22:21:53,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:21:53,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:21:53,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:21:53,336 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 22:21:53,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597373093] [2020-11-29 22:21:53,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:21:53,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 22:21:53,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036422837] [2020-11-29 22:21:53,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 22:21:53,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:21:53,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 22:21:53,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:21:53,358 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-11-29 22:21:53,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:21:53,377 INFO L93 Difference]: Finished difference Result 63 states and 97 transitions. [2020-11-29 22:21:53,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:21:53,378 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-29 22:21:53,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:21:53,387 INFO L225 Difference]: With dead ends: 63 [2020-11-29 22:21:53,388 INFO L226 Difference]: Without dead ends: 29 [2020-11-29 22:21:53,390 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 22:21:53,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-29 22:21:53,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-29 22:21:53,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-29 22:21:53,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-11-29 22:21:53,424 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 9 [2020-11-29 22:21:53,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:21:53,425 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-11-29 22:21:53,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 22:21:53,425 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-11-29 22:21:53,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 22:21:53,426 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:21:53,426 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:21:53,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 22:21:53,642 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:21:53,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:21:53,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1481927263, now seen corresponding path program 1 times [2020-11-29 22:21:53,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:21:53,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218868606] [2020-11-29 22:21:53,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/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 22:21:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:21:54,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 22:21:54,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:21:54,788 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 22:21:54,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:21:54,948 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 22:21:54,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218868606] [2020-11-29 22:21:54,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:21:54,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 22:21:54,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165467802] [2020-11-29 22:21:54,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 22:21:54,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:21:54,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 22:21:54,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 22:21:54,952 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand 8 states. [2020-11-29 22:21:55,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:21:55,176 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2020-11-29 22:21:55,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:21:55,180 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-11-29 22:21:55,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:21:55,181 INFO L225 Difference]: With dead ends: 33 [2020-11-29 22:21:55,181 INFO L226 Difference]: Without dead ends: 12 [2020-11-29 22:21:55,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-29 22:21:55,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-29 22:21:55,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-29 22:21:55,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-29 22:21:55,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-11-29 22:21:55,185 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2020-11-29 22:21:55,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:21:55,186 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-11-29 22:21:55,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 22:21:55,186 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-11-29 22:21:55,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 22:21:55,186 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:21:55,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:21:55,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 22:21:55,398 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:21:55,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:21:55,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1305404355, now seen corresponding path program 1 times [2020-11-29 22:21:55,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:21:55,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090807119] [2020-11-29 22:21:55,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/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 22:21:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:21:56,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 21 conjunts are in the unsatisfiable core [2020-11-29 22:21:56,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:21:56,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:21:56,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:21:57,223 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 39 [2020-11-29 22:21:57,224 INFO L350 Elim1Store]: treesize reduction 339, result has 16.7 percent of original size [2020-11-29 22:21:57,225 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 22:21:57,231 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-11-29 22:21:57,231 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:21:57,235 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 22:21:57,236 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:21:57,242 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 22:21:57,242 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:21:57,244 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 22:21:57,244 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:21:57,246 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 22:21:57,246 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:21:57,248 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 3, 1] term [2020-11-29 22:21:57,248 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:21:57,253 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 1] term [2020-11-29 22:21:57,255 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:21:57,259 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 1] term [2020-11-29 22:21:57,260 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:21:57,267 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 3, 2, 3, 2, 2, 1] term [2020-11-29 22:21:57,268 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:21:57,270 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 3, 2, 2, 1] term [2020-11-29 22:21:57,273 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:21:57,275 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 2, 1] term [2020-11-29 22:21:57,276 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:21:57,277 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 1] term [2020-11-29 22:21:57,278 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:21:57,281 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 1] term [2020-11-29 22:21:57,281 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:21:57,288 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:21:58,348 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 156 DAG size of output: 110 [2020-11-29 22:21:58,350 INFO L625 ElimStorePlain]: treesize reduction 2434, result has 8.3 percent of original size [2020-11-29 22:21:58,378 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,389 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,396 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,400 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,414 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,422 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,426 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,429 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,432 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 22:21:58,432 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:200, output treesize:219 [2020-11-29 22:21:58,440 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,449 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,453 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,459 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,464 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,466 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,469 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,471 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,609 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,613 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,616 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,618 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,623 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,626 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,638 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,640 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,910 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,915 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,918 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,927 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,933 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,936 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,939 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,941 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,945 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,948 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,952 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,956 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,958 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,962 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,969 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,971 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,975 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,981 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,984 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,987 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,989 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:58,998 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,000 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,003 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,006 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,011 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,013 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,016 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,021 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,023 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,026 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,031 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,033 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,037 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,039 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,042 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,048 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,052 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,054 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,062 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,066 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,070 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,075 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,077 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,080 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,084 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,087 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,096 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,098 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:21:59,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:21:59,525 INFO L244 Elim1Store]: Index analysis took 350 ms [2020-11-29 22:21:59,820 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-29 22:21:59,822 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:21:59,822 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 22:21:59,825 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:21:59,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:00,075 INFO L244 Elim1Store]: Index analysis took 208 ms [2020-11-29 22:22:00,216 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 22:22:00,216 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:00,217 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 22:22:00,220 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 22:22:00,220 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:22:00,221 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:22:00,222 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:00,227 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:00,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:00,542 INFO L244 Elim1Store]: Index analysis took 274 ms [2020-11-29 22:22:00,656 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 22:22:00,656 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:00,657 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 22:22:00,659 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 22:22:00,663 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:22:00,669 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:22:00,670 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:00,700 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:00,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:00,926 INFO L244 Elim1Store]: Index analysis took 172 ms [2020-11-29 22:22:01,100 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 22:22:01,100 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:01,101 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 22:22:01,102 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:01,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:01,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:01,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:01,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:01,401 INFO L244 Elim1Store]: Index analysis took 240 ms [2020-11-29 22:22:01,520 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 22:22:01,520 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:01,521 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 22:22:01,523 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:01,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:01,715 INFO L244 Elim1Store]: Index analysis took 158 ms [2020-11-29 22:22:01,822 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 22:22:01,823 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:01,824 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 22:22:01,825 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:01,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:02,058 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 22:22:02,058 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:02,059 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 22:22:02,061 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 22:22:02,062 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:22:02,063 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:22:02,063 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:02,081 INFO L545 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:04,186 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 140 DAG size of output: 124 [2020-11-29 22:22:04,188 INFO L625 ElimStorePlain]: treesize reduction 470, result has 68.0 percent of original size [2020-11-29 22:22:04,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:04,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:04,382 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 22:22:04,392 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:04,392 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 22:22:04,394 INFO L545 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:04,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:04,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:04,571 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 22:22:04,581 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:04,581 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 22:22:04,582 INFO L545 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:04,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:04,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:04,730 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 22:22:04,758 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:04,759 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 22:22:04,760 INFO L545 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:04,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:04,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:04,890 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 22:22:04,897 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:04,898 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 22:22:04,899 INFO L545 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:04,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:04,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:04,983 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 22:22:04,991 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:04,991 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 22:22:04,992 INFO L545 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:07,124 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2020-11-29 22:22:07,125 INFO L625 ElimStorePlain]: treesize reduction 90, result has 91.6 percent of original size [2020-11-29 22:22:07,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090807119] [2020-11-29 22:22:07,131 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Unsupported sort (_ BitVec 32) [2020-11-29 22:22:07,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1843953968] [2020-11-29 22:22:07,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/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 22:22:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:12,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 22:22:12,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:22:13,316 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 39 [2020-11-29 22:22:13,316 INFO L350 Elim1Store]: treesize reduction 355, result has 16.1 percent of original size [2020-11-29 22:22:13,317 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 22:22:13,318 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 22:22:13,319 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:13,319 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 5, 1] term [2020-11-29 22:22:13,319 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:13,320 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 5, 1] term [2020-11-29 22:22:13,320 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:13,320 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 5, 1] term [2020-11-29 22:22:13,321 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:13,321 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 1] term [2020-11-29 22:22:13,321 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:13,322 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 22:22:13,323 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:13,323 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 22:22:13,323 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:13,324 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 5, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 22:22:13,324 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:13,332 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 22:22:13,332 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:13,337 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:13,892 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 86 [2020-11-29 22:22:13,893 INFO L625 ElimStorePlain]: treesize reduction 1710, result has 8.7 percent of original size [2020-11-29 22:22:13,896 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:13,898 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:13,899 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:13,901 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:13,906 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:13,908 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:13,913 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:13,914 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:13,916 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 22:22:13,916 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:140, output treesize:163 [2020-11-29 22:22:13,918 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:13,920 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:13,921 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:13,923 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:13,924 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:13,926 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:13,927 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:13,928 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,102 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-11-29 22:22:14,108 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,111 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,114 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,115 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,117 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,119 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,120 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,122 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,332 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,334 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,335 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,337 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,339 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,340 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,342 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,343 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,345 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,347 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,349 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,351 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,352 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,354 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,355 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,356 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,359 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,360 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,362 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,363 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-11-29 22:22:14,568 INFO L244 Elim1Store]: Index analysis took 166 ms [2020-11-29 22:22:14,683 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 22:22:14,683 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:14,684 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 22:22:14,685 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:14,910 INFO L244 Elim1Store]: Index analysis took 199 ms [2020-11-29 22:22:15,024 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 22:22:15,024 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:15,024 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 22:22:15,025 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:15,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:15,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:15,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:15,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:15,163 INFO L244 Elim1Store]: Index analysis took 116 ms [2020-11-29 22:22:15,270 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 22:22:15,271 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:15,271 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 22:22:15,273 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:15,398 INFO L244 Elim1Store]: Index analysis took 104 ms [2020-11-29 22:22:15,504 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 22:22:15,505 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:15,505 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 22:22:15,506 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:15,820 INFO L244 Elim1Store]: Index analysis took 249 ms [2020-11-29 22:22:16,074 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-29 22:22:16,075 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:16,075 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 22:22:16,078 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 22:22:16,079 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 22:22:16,079 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:22:16,080 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:22:16,081 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:16,085 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:16,217 INFO L244 Elim1Store]: Index analysis took 111 ms [2020-11-29 22:22:16,311 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:16,311 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 22:22:16,312 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:16,495 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 22:22:16,495 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:16,496 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 22:22:16,497 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 22:22:16,522 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:22:16,523 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:22:16,524 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:16,527 INFO L545 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:19,006 WARN L193 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 104 DAG size of output: 98 [2020-11-29 22:22:19,006 INFO L625 ElimStorePlain]: treesize reduction 328, result has 68.7 percent of original size [2020-11-29 22:22:19,049 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 22:22:19,050 INFO L545 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:19,171 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 22:22:19,172 INFO L545 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:19,227 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 22:22:19,228 INFO L545 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:19,288 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 22:22:19,289 INFO L545 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:19,312 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 22:22:19,312 INFO L545 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:20,201 WARN L193 SmtUtils]: Spent 888.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-11-29 22:22:20,202 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:20,203 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Unsupported sort (_ BitVec 32) [2020-11-29 22:22:20,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166837137] [2020-11-29 22:22:20,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9270b353-e8dc-4762-b8a1-06d0166f1b62/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 22:22:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:20,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-29 22:22:20,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:22:20,817 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 33 [2020-11-29 22:22:20,817 INFO L350 Elim1Store]: treesize reduction 355, result has 14.5 percent of original size [2020-11-29 22:22:20,818 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 22:22:20,822 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:21,432 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 79 [2020-11-29 22:22:21,433 INFO L625 ElimStorePlain]: treesize reduction 325, result has 31.1 percent of original size [2020-11-29 22:22:21,436 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,438 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,439 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,440 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,442 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,443 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,445 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,446 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,447 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 22:22:21,447 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:120, output treesize:147 [2020-11-29 22:22:21,449 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,450 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,451 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,452 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,453 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,454 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,456 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,457 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,600 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,602 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,603 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,604 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,606 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,607 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,608 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,610 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,789 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,791 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,792 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,794 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,796 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,801 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,803 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,804 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,806 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,808 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,809 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,812 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,813 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,815 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,816 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,817 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,819 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,820 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,821 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:21,822 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-11-29 22:22:22,082 INFO L244 Elim1Store]: Index analysis took 227 ms [2020-11-29 22:22:22,281 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-11-29 22:22:22,281 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:22,282 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 22:22:22,284 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 22:22:22,285 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 22:22:22,290 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:22:22,291 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:22:22,292 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:22,294 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:22,503 INFO L244 Elim1Store]: Index analysis took 183 ms [2020-11-29 22:22:22,715 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-11-29 22:22:22,716 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:22,716 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 22:22:22,718 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 22:22:22,719 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 22:22:22,719 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 22:22:22,720 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:22:22,720 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:22:22,722 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:22,732 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:22,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:22,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:22,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:22,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:22:22,898 INFO L244 Elim1Store]: Index analysis took 144 ms [2020-11-29 22:22:23,056 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-11-29 22:22:23,057 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:23,057 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 22:22:23,058 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:23,063 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:23,184 INFO L244 Elim1Store]: Index analysis took 105 ms [2020-11-29 22:22:23,333 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-11-29 22:22:23,334 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:23,334 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 22:22:23,335 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 22:22:23,336 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 22:22:23,337 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:22:23,338 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:22:23,338 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:23,340 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:23,552 INFO L244 Elim1Store]: Index analysis took 154 ms [2020-11-29 22:22:23,749 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-11-29 22:22:23,750 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:23,750 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 22:22:23,752 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 22:22:23,753 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 22:22:23,753 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:22:23,754 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:22:23,754 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:23,757 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 22:22:23,758 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 22:22:23,758 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:22:23,760 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:22:23,760 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:23,761 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:23,761 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 22:22:23,763 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:23,766 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:23,768 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:23,778 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:23,981 INFO L244 Elim1Store]: Index analysis took 165 ms [2020-11-29 22:22:24,139 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-11-29 22:22:24,140 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:24,140 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 22:22:24,142 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 22:22:24,142 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 22:22:24,143 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:22:24,165 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:22:24,166 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:24,169 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:24,381 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-11-29 22:22:24,381 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:24,381 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 22:22:24,383 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 22:22:24,383 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 22:22:24,384 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:22:24,387 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:22:24,387 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:22:24,399 INFO L545 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:25,781 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 128 DAG size of output: 91 [2020-11-29 22:22:25,782 INFO L625 ElimStorePlain]: treesize reduction 486, result has 57.0 percent of original size [2020-11-29 22:22:25,878 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:25,878 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 22:22:25,879 INFO L545 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:25,958 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:25,958 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 22:22:25,959 INFO L545 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:26,028 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:26,029 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 22:22:26,029 INFO L545 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:26,116 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:26,116 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 22:22:26,117 INFO L545 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:26,192 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:22:26,192 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 22:22:26,193 INFO L545 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-11-29 22:22:27,384 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-11-29 22:22:27,385 INFO L625 ElimStorePlain]: treesize reduction 140, result has 81.7 percent of original size [2020-11-29 22:22:27,386 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Unsupported sort (_ BitVec 32) [2020-11-29 22:22:27,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:22:27,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-11-29 22:22:27,386 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-11-29 22:22:27,386 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 22:22:28,001 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 22:22:28,013 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-11-29 22:22:28,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:22:28 BoogieIcfgContainer [2020-11-29 22:22:28,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:22:28,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:22:28,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:22:28,015 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:22:28,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:21:52" (3/4) ... [2020-11-29 22:22:28,018 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 22:22:28,018 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:22:28,019 INFO L168 Benchmark]: Toolchain (without parser) took 44913.40 ms. Allocated memory was 71.3 MB in the beginning and 92.3 MB in the end (delta: 21.0 MB). Free memory was 54.9 MB in the beginning and 65.4 MB in the end (delta: -10.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:22:28,020 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 71.3 MB. Free memory is still 52.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:22:28,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.24 ms. Allocated memory is still 71.3 MB. Free memory was 54.7 MB in the beginning and 51.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:22:28,021 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.18 ms. Allocated memory is still 71.3 MB. Free memory was 51.9 MB in the beginning and 49.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:22:28,021 INFO L168 Benchmark]: Boogie Preprocessor took 93.64 ms. Allocated memory is still 71.3 MB. Free memory was 49.5 MB in the beginning and 47.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:22:28,021 INFO L168 Benchmark]: RCFGBuilder took 8366.44 ms. Allocated memory is still 71.3 MB. Free memory was 47.4 MB in the beginning and 43.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:22:28,022 INFO L168 Benchmark]: TraceAbstraction took 35960.88 ms. Allocated memory was 71.3 MB in the beginning and 92.3 MB in the end (delta: 21.0 MB). Free memory was 42.7 MB in the beginning and 66.4 MB in the end (delta: -23.7 MB). Peak memory consumption was 44.8 MB. Max. memory is 16.1 GB. [2020-11-29 22:22:28,022 INFO L168 Benchmark]: Witness Printer took 3.95 ms. Allocated memory is still 92.3 MB. Free memory was 66.4 MB in the beginning and 65.4 MB in the end (delta: 987.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:22:28,025 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 71.3 MB. Free memory is still 52.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 391.24 ms. Allocated memory is still 71.3 MB. Free memory was 54.7 MB in the beginning and 51.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.18 ms. Allocated memory is still 71.3 MB. Free memory was 51.9 MB in the beginning and 49.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 93.64 ms. Allocated memory is still 71.3 MB. Free memory was 49.5 MB in the beginning and 47.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 8366.44 ms. Allocated memory is still 71.3 MB. Free memory was 47.4 MB in the beginning and 43.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 35960.88 ms. Allocated memory was 71.3 MB in the beginning and 92.3 MB in the end (delta: 21.0 MB). Free memory was 42.7 MB in the beginning and 66.4 MB in the end (delta: -23.7 MB). Peak memory consumption was 44.8 MB. Max. memory is 16.1 GB. * Witness Printer took 3.95 ms. Allocated memory is still 92.3 MB. Free memory was 66.4 MB in the beginning and 65.4 MB in the end (delta: 987.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L34-L39] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L41-L46] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L48-L52] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L54-L56] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L129] 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 TRUE hx > 0 [L72] EXPR atanhi_atan[3] [L72] EXPR atanlo_atan[3] [L72] return atanhi_atan[3] + atanlo_atan[3]; [L130] float res = atan_float(x); [L132] COND TRUE res != pi_o_2 [L3] __assert_fail("0", "float_req_bl_0621a.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: 35.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, 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, 0.3s 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, 0.4s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 34 ConstructedInterpolants, 6 QuantifiedInterpolants, 1271 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...