./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1230.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_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1230.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/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 3712292932a14caaa681695c17d35c29cbe1c2a4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1230.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/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 3712292932a14caaa681695c17d35c29cbe1c2a4 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:03:10,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:03:10,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:03:10,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:03:10,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:03:10,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:03:10,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:03:10,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:03:10,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:03:10,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:03:10,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:03:10,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:03:10,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:03:10,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:03:10,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:03:10,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:03:10,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:03:10,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:03:10,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:03:10,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:03:10,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:03:10,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:03:10,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:03:10,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:03:10,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:03:10,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:03:10,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:03:10,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:03:10,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:03:10,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:03:10,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:03:10,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:03:10,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:03:10,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:03:10,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:03:10,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:03:10,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:03:10,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:03:10,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:03:10,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:03:10,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:03:10,616 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:03:10,640 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:03:10,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:03:10,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:03:10,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:03:10,642 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:03:10,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:03:10,643 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:03:10,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:03:10,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:03:10,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:03:10,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:03:10,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:03:10,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:03:10,644 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:03:10,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:03:10,645 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:03:10,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:03:10,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:03:10,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:03:10,646 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:03:10,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:03:10,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:03:10,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:03:10,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:03:10,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:03:10,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:03:10,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:03:10,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:03:10,649 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:03:10,649 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_5321d0c4-e997-4a99-849f-25c9c7daf65d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3712292932a14caaa681695c17d35c29cbe1c2a4 [2020-11-28 03:03:10,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:03:10,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:03:10,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:03:10,911 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:03:10,913 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:03:10,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1230.c [2020-11-28 03:03:10,981 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/data/5a6082078/979ca3d5248a4a85ac30985ab41dc337/FLAG806f0212d [2020-11-28 03:03:11,443 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:03:11,443 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/sv-benchmarks/c/float-newlib/float_req_bl_1230.c [2020-11-28 03:03:11,455 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/data/5a6082078/979ca3d5248a4a85ac30985ab41dc337/FLAG806f0212d [2020-11-28 03:03:11,884 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/data/5a6082078/979ca3d5248a4a85ac30985ab41dc337 [2020-11-28 03:03:11,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:03:11,897 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:03:11,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:03:11,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:03:11,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:03:11,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:11" (1/1) ... [2020-11-28 03:03:11,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cedda96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:11, skipping insertion in model container [2020-11-28 03:03:11,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:11" (1/1) ... [2020-11-28 03:03:11,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:03:11,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:03:12,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:03:12,152 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:03:12,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:03:12,188 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:03:12,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12 WrapperNode [2020-11-28 03:03:12,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:03:12,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:03:12,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:03:12,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:03:12,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:12,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:12,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:03:12,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:03:12,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:03:12,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:03:12,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:12,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:12,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:12,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:12,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:12,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:12,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:12,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:03:12,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:03:12,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:03:12,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:03:12,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/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 [2020-11-28 03:03:12,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:03:12,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:03:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-28 03:03:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:03:12,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:03:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:03:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:03:12,722 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:03:12,723 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-28 03:03:12,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:12 BoogieIcfgContainer [2020-11-28 03:03:12,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:03:12,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:03:12,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:03:12,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:03:12,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:03:11" (1/3) ... [2020-11-28 03:03:12,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15f2646e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:03:12, skipping insertion in model container [2020-11-28 03:03:12,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (2/3) ... [2020-11-28 03:03:12,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15f2646e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:03:12, skipping insertion in model container [2020-11-28 03:03:12,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:12" (3/3) ... [2020-11-28 03:03:12,734 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230.c [2020-11-28 03:03:12,745 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:03:12,750 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:03:12,768 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:03:12,793 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:03:12,793 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:03:12,793 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:03:12,793 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:03:12,793 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:03:12,794 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:03:12,794 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:03:12,794 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:03:12,807 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-11-28 03:03:12,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:03:12,812 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:12,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:12,813 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:12,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:12,819 INFO L82 PathProgramCache]: Analyzing trace with hash -958093107, now seen corresponding path program 1 times [2020-11-28 03:03:12,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:12,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232736288] [2020-11-28 03:03:12,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:12,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:12,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:12,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232736288] [2020-11-28 03:03:12,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:12,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:03:12,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589924111] [2020-11-28 03:03:12,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:03:12,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:12,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:03:12,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:03:12,982 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2020-11-28 03:03:13,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:13,001 INFO L93 Difference]: Finished difference Result 55 states and 85 transitions. [2020-11-28 03:03:13,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:03:13,002 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-28 03:03:13,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:13,030 INFO L225 Difference]: With dead ends: 55 [2020-11-28 03:03:13,031 INFO L226 Difference]: Without dead ends: 25 [2020-11-28 03:03:13,033 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 [2020-11-28 03:03:13,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-28 03:03:13,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-11-28 03:03:13,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-28 03:03:13,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2020-11-28 03:03:13,066 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 10 [2020-11-28 03:03:13,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:13,067 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2020-11-28 03:03:13,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:03:13,067 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2020-11-28 03:03:13,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:03:13,068 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:13,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:13,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:03:13,069 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:13,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:13,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1001566992, now seen corresponding path program 1 times [2020-11-28 03:03:13,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:13,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664473970] [2020-11-28 03:03:13,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:13,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:13,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664473970] [2020-11-28 03:03:13,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:13,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:03:13,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185699060] [2020-11-28 03:03:13,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:03:13,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:13,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:03:13,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:03:13,172 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand 4 states. [2020-11-28 03:03:13,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:13,278 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2020-11-28 03:03:13,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:03:13,280 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-28 03:03:13,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:13,281 INFO L225 Difference]: With dead ends: 41 [2020-11-28 03:03:13,281 INFO L226 Difference]: Without dead ends: 36 [2020-11-28 03:03:13,282 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:03:13,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-28 03:03:13,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2020-11-28 03:03:13,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-28 03:03:13,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2020-11-28 03:03:13,295 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 11 [2020-11-28 03:03:13,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:13,296 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2020-11-28 03:03:13,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:03:13,296 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-11-28 03:03:13,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 03:03:13,298 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:13,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:13,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:03:13,300 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:13,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:13,301 INFO L82 PathProgramCache]: Analyzing trace with hash 502183504, now seen corresponding path program 1 times [2020-11-28 03:03:13,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:13,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400770767] [2020-11-28 03:03:13,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:13,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:13,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:13,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400770767] [2020-11-28 03:03:13,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:13,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:03:13,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12328407] [2020-11-28 03:03:13,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:03:13,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:13,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:03:13,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:03:13,411 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 4 states. [2020-11-28 03:03:13,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:13,490 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2020-11-28 03:03:13,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:03:13,493 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-28 03:03:13,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:13,494 INFO L225 Difference]: With dead ends: 43 [2020-11-28 03:03:13,494 INFO L226 Difference]: Without dead ends: 38 [2020-11-28 03:03:13,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:03:13,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-28 03:03:13,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2020-11-28 03:03:13,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-28 03:03:13,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2020-11-28 03:03:13,504 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 12 [2020-11-28 03:03:13,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:13,504 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2020-11-28 03:03:13,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:03:13,505 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-11-28 03:03:13,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 03:03:13,506 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:13,506 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:13,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:03:13,507 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:13,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:13,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1951251627, now seen corresponding path program 1 times [2020-11-28 03:03:13,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:13,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236843182] [2020-11-28 03:03:13,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:13,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:13,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236843182] [2020-11-28 03:03:13,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:13,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:03:13,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031172155] [2020-11-28 03:03:13,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:03:13,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:13,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:03:13,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:03:13,599 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 4 states. [2020-11-28 03:03:13,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:13,670 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2020-11-28 03:03:13,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:03:13,673 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-28 03:03:13,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:13,674 INFO L225 Difference]: With dead ends: 45 [2020-11-28 03:03:13,674 INFO L226 Difference]: Without dead ends: 40 [2020-11-28 03:03:13,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:03:13,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-11-28 03:03:13,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 27. [2020-11-28 03:03:13,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-28 03:03:13,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2020-11-28 03:03:13,680 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 13 [2020-11-28 03:03:13,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:13,683 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2020-11-28 03:03:13,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:03:13,684 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-11-28 03:03:13,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 03:03:13,685 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:13,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:13,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:03:13,686 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:13,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:13,686 INFO L82 PathProgramCache]: Analyzing trace with hash -555778251, now seen corresponding path program 1 times [2020-11-28 03:03:13,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:13,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797192761] [2020-11-28 03:03:13,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:13,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:13,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797192761] [2020-11-28 03:03:13,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:13,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:03:13,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954729865] [2020-11-28 03:03:13,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:03:13,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:13,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:03:13,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:03:13,752 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 4 states. [2020-11-28 03:03:13,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:13,840 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2020-11-28 03:03:13,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:03:13,841 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-28 03:03:13,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:13,842 INFO L225 Difference]: With dead ends: 43 [2020-11-28 03:03:13,842 INFO L226 Difference]: Without dead ends: 38 [2020-11-28 03:03:13,843 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:03:13,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-28 03:03:13,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2020-11-28 03:03:13,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-28 03:03:13,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2020-11-28 03:03:13,849 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 14 [2020-11-28 03:03:13,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:13,850 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2020-11-28 03:03:13,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:03:13,850 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-11-28 03:03:13,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 03:03:13,854 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:13,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:13,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:03:13,855 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:13,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:13,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1219229111, now seen corresponding path program 1 times [2020-11-28 03:03:13,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:13,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242498877] [2020-11-28 03:03:13,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:13,903 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:13,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:13,931 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:13,960 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:13,964 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:03:13,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:03:14,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:03:14 BoogieIcfgContainer [2020-11-28 03:03:14,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:03:14,005 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:03:14,005 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:03:14,005 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:03:14,006 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:12" (3/4) ... [2020-11-28 03:03:14,008 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:03:14,008 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:03:14,010 INFO L168 Benchmark]: Toolchain (without parser) took 2111.94 ms. Allocated memory was 104.9 MB in the beginning and 130.0 MB in the end (delta: 25.2 MB). Free memory was 74.2 MB in the beginning and 96.2 MB in the end (delta: -22.0 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:14,011 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 77.6 MB. Free memory was 38.4 MB in the beginning and 38.3 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:03:14,011 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.65 ms. Allocated memory is still 104.9 MB. Free memory was 73.9 MB in the beginning and 80.7 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:14,012 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.05 ms. Allocated memory is still 104.9 MB. Free memory was 80.7 MB in the beginning and 79.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:14,012 INFO L168 Benchmark]: Boogie Preprocessor took 40.00 ms. Allocated memory is still 104.9 MB. Free memory was 79.0 MB in the beginning and 77.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:14,013 INFO L168 Benchmark]: RCFGBuilder took 450.66 ms. Allocated memory is still 104.9 MB. Free memory was 77.7 MB in the beginning and 59.7 MB in the end (delta: 18.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:14,014 INFO L168 Benchmark]: TraceAbstraction took 1278.27 ms. Allocated memory was 104.9 MB in the beginning and 130.0 MB in the end (delta: 25.2 MB). Free memory was 59.3 MB in the beginning and 96.2 MB in the end (delta: -36.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:03:14,014 INFO L168 Benchmark]: Witness Printer took 3.25 ms. Allocated memory is still 130.0 MB. Free memory is still 96.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:03:14,022 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 77.6 MB. Free memory was 38.4 MB in the beginning and 38.3 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 277.65 ms. Allocated memory is still 104.9 MB. Free memory was 73.9 MB in the beginning and 80.7 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.05 ms. Allocated memory is still 104.9 MB. Free memory was 80.7 MB in the beginning and 79.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.00 ms. Allocated memory is still 104.9 MB. Free memory was 79.0 MB in the beginning and 77.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 450.66 ms. Allocated memory is still 104.9 MB. Free memory was 77.7 MB in the beginning and 59.7 MB in the end (delta: 18.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1278.27 ms. Allocated memory was 104.9 MB in the beginning and 130.0 MB in the end (delta: 25.2 MB). Free memory was 59.3 MB in the beginning and 96.2 MB in the end (delta: -36.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.25 ms. Allocated memory is still 130.0 MB. Free memory is still 96.2 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 46, overapproximation of someBinaryArithmeticFLOAToperation at line 56. Possible FailurePath: [L56] float x = 0.0f / 0.0f; [L57] float y = 0.0f / 0.0f; [L14] __uint32_t w; [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L22] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L24-L25] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L27-L28] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L30] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L33] return 0; [L37] COND TRUE __fpclassify_float(x) == 0 [L38] return y; [L58] float res = fmin_float(x, y); [L46] return x != x; [L60] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_1230.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 206 SDtfs, 44 SDslu, 238 SDs, 0 SdLazy, 84 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 5 MinimizatonAttempts, 44 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 799 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 [2020-11-28 03:03:16,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:03:16,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:03:16,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:03:16,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:03:16,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:03:16,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:03:16,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:03:16,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:03:16,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:03:16,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:03:16,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:03:16,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:03:16,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:03:16,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:03:16,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:03:16,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:03:16,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:03:16,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:03:16,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:03:16,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:03:16,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:03:16,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:03:16,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:03:16,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:03:16,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:03:16,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:03:16,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:03:16,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:03:16,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:03:16,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:03:16,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:03:16,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:03:16,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:03:16,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:03:16,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:03:16,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:03:16,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:03:16,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:03:16,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:03:16,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:03:16,747 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-28 03:03:16,790 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:03:16,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:03:16,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:03:16,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:03:16,791 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:03:16,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:03:16,792 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:03:16,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:03:16,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:03:16,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:03:16,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:03:16,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:03:16,793 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 03:03:16,793 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 03:03:16,793 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:03:16,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:03:16,794 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:03:16,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:03:16,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:03:16,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:03:16,795 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:03:16,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:03:16,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:03:16,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:03:16,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:03:16,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:03:16,796 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 03:03:16,796 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 03:03:16,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:03:16,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:03:16,797 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 03:03:16,797 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_5321d0c4-e997-4a99-849f-25c9c7daf65d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3712292932a14caaa681695c17d35c29cbe1c2a4 [2020-11-28 03:03:17,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:03:17,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:03:17,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:03:17,225 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:03:17,226 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:03:17,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1230.c [2020-11-28 03:03:17,291 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/data/785e547d1/421d7d3fd03e4251b27822a76a73e835/FLAG98ff84ff9 [2020-11-28 03:03:17,815 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:03:17,815 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/sv-benchmarks/c/float-newlib/float_req_bl_1230.c [2020-11-28 03:03:17,822 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/data/785e547d1/421d7d3fd03e4251b27822a76a73e835/FLAG98ff84ff9 [2020-11-28 03:03:18,161 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/data/785e547d1/421d7d3fd03e4251b27822a76a73e835 [2020-11-28 03:03:18,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:03:18,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:03:18,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:03:18,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:03:18,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:03:18,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:18" (1/1) ... [2020-11-28 03:03:18,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5582ceee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:18, skipping insertion in model container [2020-11-28 03:03:18,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:18" (1/1) ... [2020-11-28 03:03:18,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:03:18,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:03:18,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:03:18,366 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:03:18,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:03:18,417 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:03:18,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:18 WrapperNode [2020-11-28 03:03:18,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:03:18,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:03:18,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:03:18,419 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:03:18,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:18" (1/1) ... [2020-11-28 03:03:18,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:18" (1/1) ... [2020-11-28 03:03:18,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:03:18,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:03:18,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:03:18,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:03:18,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:18" (1/1) ... [2020-11-28 03:03:18,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:18" (1/1) ... [2020-11-28 03:03:18,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:18" (1/1) ... [2020-11-28 03:03:18,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:18" (1/1) ... [2020-11-28 03:03:18,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:18" (1/1) ... [2020-11-28 03:03:18,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:18" (1/1) ... [2020-11-28 03:03:18,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:18" (1/1) ... [2020-11-28 03:03:18,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:03:18,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:03:18,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:03:18,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:03:18,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/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 [2020-11-28 03:03:18,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 03:03:18,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:03:18,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 03:03:18,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:03:18,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:03:18,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-28 03:03:18,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:03:19,199 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:03:19,201 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-28 03:03:19,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:19 BoogieIcfgContainer [2020-11-28 03:03:19,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:03:19,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:03:19,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:03:19,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:03:19,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:03:18" (1/3) ... [2020-11-28 03:03:19,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53391297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:03:19, skipping insertion in model container [2020-11-28 03:03:19,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:18" (2/3) ... [2020-11-28 03:03:19,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53391297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:03:19, skipping insertion in model container [2020-11-28 03:03:19,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:19" (3/3) ... [2020-11-28 03:03:19,213 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230.c [2020-11-28 03:03:19,225 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:03:19,231 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:03:19,240 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:03:19,261 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:03:19,261 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:03:19,262 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:03:19,262 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:03:19,262 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:03:19,262 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:03:19,262 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:03:19,263 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:03:19,274 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-11-28 03:03:19,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:03:19,279 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:19,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:19,280 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:19,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:19,284 INFO L82 PathProgramCache]: Analyzing trace with hash -958093107, now seen corresponding path program 1 times [2020-11-28 03:03:19,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:03:19,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136585515] [2020-11-28 03:03:19,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/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 [2020-11-28 03:03:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:19,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 03:03:19,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:03:19,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:19,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:03:19,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:19,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136585515] [2020-11-28 03:03:19,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:19,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 03:03:19,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219936744] [2020-11-28 03:03:19,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:03:19,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:03:19,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:03:19,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:03:19,427 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2020-11-28 03:03:19,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:19,449 INFO L93 Difference]: Finished difference Result 55 states and 85 transitions. [2020-11-28 03:03:19,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:03:19,450 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-28 03:03:19,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:19,469 INFO L225 Difference]: With dead ends: 55 [2020-11-28 03:03:19,469 INFO L226 Difference]: Without dead ends: 25 [2020-11-28 03:03:19,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:03:19,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-28 03:03:19,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-11-28 03:03:19,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-28 03:03:19,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2020-11-28 03:03:19,518 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 10 [2020-11-28 03:03:19,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:19,518 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2020-11-28 03:03:19,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:03:19,519 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2020-11-28 03:03:19,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:03:19,520 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:19,520 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:19,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 03:03:19,740 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:19,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:19,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1001566992, now seen corresponding path program 1 times [2020-11-28 03:03:19,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:03:19,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511408814] [2020-11-28 03:03:19,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/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 [2020-11-28 03:03:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:19,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:03:19,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:03:19,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:19,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:03:19,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:19,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511408814] [2020-11-28 03:03:19,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:19,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-28 03:03:19,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433878224] [2020-11-28 03:03:19,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:03:19,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:03:19,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:03:19,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:03:19,940 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand 6 states. [2020-11-28 03:03:20,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:20,087 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2020-11-28 03:03:20,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:03:20,088 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-28 03:03:20,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:20,089 INFO L225 Difference]: With dead ends: 52 [2020-11-28 03:03:20,089 INFO L226 Difference]: Without dead ends: 47 [2020-11-28 03:03:20,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:03:20,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-28 03:03:20,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2020-11-28 03:03:20,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-28 03:03:20,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2020-11-28 03:03:20,098 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 11 [2020-11-28 03:03:20,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:20,098 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2020-11-28 03:03:20,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:03:20,098 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-11-28 03:03:20,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 03:03:20,099 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:20,100 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:20,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 03:03:20,314 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:20,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:20,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1219229111, now seen corresponding path program 1 times [2020-11-28 03:03:20,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:03:20,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697074907] [2020-11-28 03:03:20,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/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 [2020-11-28 03:03:20,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:20,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-28 03:03:20,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:03:20,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:20,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:03:20,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:20,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697074907] [2020-11-28 03:03:20,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:20,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-28 03:03:20,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145534412] [2020-11-28 03:03:20,683 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 03:03:20,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:03:20,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 03:03:20,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:03:20,684 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 10 states. [2020-11-28 03:03:21,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:21,075 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2020-11-28 03:03:21,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:03:21,086 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-11-28 03:03:21,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:21,087 INFO L225 Difference]: With dead ends: 36 [2020-11-28 03:03:21,087 INFO L226 Difference]: Without dead ends: 27 [2020-11-28 03:03:21,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:03:21,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-28 03:03:21,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2020-11-28 03:03:21,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-28 03:03:21,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2020-11-28 03:03:21,093 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 14 [2020-11-28 03:03:21,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:21,094 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2020-11-28 03:03:21,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 03:03:21,094 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2020-11-28 03:03:21,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:03:21,095 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:21,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:21,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 03:03:21,296 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:21,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:21,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1012428811, now seen corresponding path program 1 times [2020-11-28 03:03:21,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:03:21,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787274591] [2020-11-28 03:03:21,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-28 03:03:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:21,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:03:21,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:03:21,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:21,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:03:21,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:21,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787274591] [2020-11-28 03:03:21,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:21,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-28 03:03:21,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529189207] [2020-11-28 03:03:21,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:03:21,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:03:21,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:03:21,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:03:21,436 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand 6 states. [2020-11-28 03:03:21,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:21,574 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2020-11-28 03:03:21,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:03:21,575 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-28 03:03:21,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:21,577 INFO L225 Difference]: With dead ends: 52 [2020-11-28 03:03:21,577 INFO L226 Difference]: Without dead ends: 47 [2020-11-28 03:03:21,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:03:21,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-28 03:03:21,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2020-11-28 03:03:21,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-28 03:03:21,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2020-11-28 03:03:21,585 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 16 [2020-11-28 03:03:21,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:21,586 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-11-28 03:03:21,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:03:21,586 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2020-11-28 03:03:21,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:03:21,589 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:21,589 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:21,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 03:03:21,808 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:21,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:21,808 INFO L82 PathProgramCache]: Analyzing trace with hash -356841937, now seen corresponding path program 1 times [2020-11-28 03:03:21,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:03:21,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229612562] [2020-11-28 03:03:21,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-28 03:03:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:21,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 03:03:21,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:03:22,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:22,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:03:22,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:22,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229612562] [2020-11-28 03:03:22,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:22,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2020-11-28 03:03:22,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348990600] [2020-11-28 03:03:22,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:03:22,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:03:22,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:03:22,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:03:22,218 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand 12 states. [2020-11-28 03:03:22,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:22,554 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2020-11-28 03:03:22,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:03:22,555 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 18 [2020-11-28 03:03:22,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:22,556 INFO L225 Difference]: With dead ends: 32 [2020-11-28 03:03:22,556 INFO L226 Difference]: Without dead ends: 23 [2020-11-28 03:03:22,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2020-11-28 03:03:22,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-28 03:03:22,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-11-28 03:03:22,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-28 03:03:22,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2020-11-28 03:03:22,560 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 18 [2020-11-28 03:03:22,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:22,561 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2020-11-28 03:03:22,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:03:22,561 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2020-11-28 03:03:22,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:03:22,562 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:22,562 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:22,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-28 03:03:22,762 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:22,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:22,763 INFO L82 PathProgramCache]: Analyzing trace with hash -208376157, now seen corresponding path program 1 times [2020-11-28 03:03:22,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:03:22,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604154704] [2020-11-28 03:03:22,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-28 03:03:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:22,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-28 03:03:22,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:03:22,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:22,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:03:23,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:23,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604154704] [2020-11-28 03:03:23,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:23,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-28 03:03:23,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890788600] [2020-11-28 03:03:23,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 03:03:23,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:03:23,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 03:03:23,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:03:23,070 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 10 states. [2020-11-28 03:03:23,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:23,303 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2020-11-28 03:03:23,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:03:23,303 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2020-11-28 03:03:23,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:23,304 INFO L225 Difference]: With dead ends: 23 [2020-11-28 03:03:23,304 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:03:23,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:03:23,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:03:23,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:03:23,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:03:23,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:03:23,305 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-11-28 03:03:23,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:23,305 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:03:23,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 03:03:23,305 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:03:23,306 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:03:23,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-28 03:03:23,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:03:23,709 INFO L274 CegarLoopResult]: For program point L60(lines 60 63) no Hoare annotation was computed. [2020-11-28 03:03:23,710 INFO L274 CegarLoopResult]: For program point L27(lines 27 33) no Hoare annotation was computed. [2020-11-28 03:03:23,710 INFO L274 CegarLoopResult]: For program point L27-1(lines 27 33) no Hoare annotation was computed. [2020-11-28 03:03:23,710 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:03:23,710 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 03:03:23,710 INFO L277 CegarLoopResult]: At program point L65(lines 48 66) the Hoare annotation is: true [2020-11-28 03:03:23,710 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:03:23,710 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:03:23,711 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:03:23,711 INFO L274 CegarLoopResult]: For program point L24(lines 24 33) no Hoare annotation was computed. [2020-11-28 03:03:23,711 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:03:23,711 INFO L274 CegarLoopResult]: For program point L24-1(lines 24 33) no Hoare annotation was computed. [2020-11-28 03:03:23,711 INFO L274 CegarLoopResult]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2020-11-28 03:03:23,711 INFO L270 CegarLoopResult]: At program point L16-2(lines 16 20) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)) (not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))) [2020-11-28 03:03:23,711 INFO L274 CegarLoopResult]: For program point L16-3(lines 13 34) no Hoare annotation was computed. [2020-11-28 03:03:23,711 INFO L274 CegarLoopResult]: For program point L16-5(lines 16 20) no Hoare annotation was computed. [2020-11-28 03:03:23,712 INFO L270 CegarLoopResult]: At program point L16-6(lines 16 20) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)) (not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))) [2020-11-28 03:03:23,712 INFO L274 CegarLoopResult]: For program point L16-7(lines 13 34) no Hoare annotation was computed. [2020-11-28 03:03:23,712 INFO L274 CegarLoopResult]: For program point L37(lines 37 38) no Hoare annotation was computed. [2020-11-28 03:03:23,712 INFO L270 CegarLoopResult]: At program point L33(lines 13 34) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)) (not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))) [2020-11-28 03:03:23,712 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:03:23,712 INFO L270 CegarLoopResult]: At program point L33-1(lines 13 34) the Hoare annotation is: (let ((.cse0 (not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)))) (or (and .cse0 (not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))) (and (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_float_#res|)) .cse0))) [2020-11-28 03:03:23,713 INFO L270 CegarLoopResult]: At program point L46(line 46) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq |ULTIMATE.start_fmin_float_#res| |ULTIMATE.start_fmin_float_#res|)) (not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))) [2020-11-28 03:03:23,713 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-11-28 03:03:23,713 INFO L274 CegarLoopResult]: For program point L42-2(line 42) no Hoare annotation was computed. [2020-11-28 03:03:23,713 INFO L270 CegarLoopResult]: At program point L42-3(lines 36 43) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start_fmin_float_#res| |ULTIMATE.start_fmin_float_#res|)) (not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))) [2020-11-28 03:03:23,713 INFO L274 CegarLoopResult]: For program point L30(lines 30 33) no Hoare annotation was computed. [2020-11-28 03:03:23,713 INFO L274 CegarLoopResult]: For program point L30-1(lines 30 33) no Hoare annotation was computed. [2020-11-28 03:03:23,713 INFO L274 CegarLoopResult]: For program point L39(lines 39 40) no Hoare annotation was computed. [2020-11-28 03:03:23,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:03:23 BoogieIcfgContainer [2020-11-28 03:03:23,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:03:23,741 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:03:23,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:03:23,742 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:03:23,742 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:19" (3/4) ... [2020-11-28 03:03:23,745 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:03:23,760 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-28 03:03:23,761 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 03:03:23,761 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:03:23,761 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:03:23,790 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !~fp.eq~FLOAT(\result, \result) && !~fp.eq~FLOAT(y, y) [2020-11-28 03:03:23,791 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1bv32 == \result && !~fp.eq~FLOAT(\result, \result)) && !~fp.eq~FLOAT(y, y) [2020-11-28 03:03:23,792 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!~fp.eq~FLOAT(y, y) && !~fp.eq~FLOAT(x, x)) || (!(0bv32 == \result) && !~fp.eq~FLOAT(y, y)) [2020-11-28 03:03:23,841 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5321d0c4-e997-4a99-849f-25c9c7daf65d/bin/uautomizer/witness.graphml [2020-11-28 03:03:23,842 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:03:23,844 INFO L168 Benchmark]: Toolchain (without parser) took 5677.25 ms. Allocated memory was 56.6 MB in the beginning and 88.1 MB in the end (delta: 31.5 MB). Free memory was 34.9 MB in the beginning and 46.1 MB in the end (delta: -11.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:23,844 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 56.6 MB. Free memory is still 38.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:03:23,845 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.43 ms. Allocated memory is still 56.6 MB. Free memory was 34.7 MB in the beginning and 24.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:23,846 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.41 ms. Allocated memory is still 56.6 MB. Free memory was 24.0 MB in the beginning and 39.7 MB in the end (delta: -15.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:23,846 INFO L168 Benchmark]: Boogie Preprocessor took 60.45 ms. Allocated memory is still 56.6 MB. Free memory was 39.7 MB in the beginning and 38.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:03:23,846 INFO L168 Benchmark]: RCFGBuilder took 634.95 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 38.1 MB in the beginning and 47.6 MB in the end (delta: -9.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:23,847 INFO L168 Benchmark]: TraceAbstraction took 4535.29 ms. Allocated memory was 69.2 MB in the beginning and 88.1 MB in the end (delta: 18.9 MB). Free memory was 47.2 MB in the beginning and 49.6 MB in the end (delta: -2.4 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:23,848 INFO L168 Benchmark]: Witness Printer took 100.29 ms. Allocated memory is still 88.1 MB. Free memory was 49.6 MB in the beginning and 46.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:23,851 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 56.6 MB. Free memory is still 38.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 251.43 ms. Allocated memory is still 56.6 MB. Free memory was 34.7 MB in the beginning and 24.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.41 ms. Allocated memory is still 56.6 MB. Free memory was 24.0 MB in the beginning and 39.7 MB in the end (delta: -15.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.45 ms. Allocated memory is still 56.6 MB. Free memory was 39.7 MB in the beginning and 38.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 634.95 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 38.1 MB in the beginning and 47.6 MB in the end (delta: -9.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4535.29 ms. Allocated memory was 69.2 MB in the beginning and 88.1 MB in the end (delta: 18.9 MB). Free memory was 47.2 MB in the beginning and 49.6 MB in the end (delta: -2.4 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. * Witness Printer took 100.29 ms. Allocated memory is still 88.1 MB. Free memory was 49.6 MB in the beginning and 46.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(y, y) && !~fp.eq~FLOAT(x, x) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: (!~fp.eq~FLOAT(y, y) && !~fp.eq~FLOAT(x, x)) || (!(0bv32 == \result) && !~fp.eq~FLOAT(y, y)) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(y, y) && !~fp.eq~FLOAT(x, x) - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(\result, \result) && !~fp.eq~FLOAT(y, y) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (1bv32 == \result && !~fp.eq~FLOAT(\result, \result)) && !~fp.eq~FLOAT(y, y) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(y, y) && !~fp.eq~FLOAT(x, x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 182 SDtfs, 117 SDslu, 549 SDs, 0 SdLazy, 138 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 130 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 7 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 6 MinimizatonAttempts, 42 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 19 NumberOfFragments, 68 HoareAnnotationTreeSize, 7 FomulaSimplifications, 213 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 164 ConstructedInterpolants, 36 QuantifiedInterpolants, 8466 SizeOfPredicates, 32 NumberOfNonLiveVariables, 375 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...