./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0 --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 9f4aaad5467edb8ebb713201c5ef1a2ab973a56e3a4674058c8240617473ff22 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:48:23,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:48:23,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:48:23,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:48:23,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:48:23,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:48:23,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:48:23,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:48:23,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:48:23,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:48:23,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:48:23,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:48:23,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:48:23,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:48:23,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:48:23,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:48:23,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:48:23,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:48:23,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:48:23,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:48:23,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:48:23,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:48:23,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:48:23,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:48:23,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:48:23,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:48:23,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:48:23,711 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:48:23,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:48:23,717 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:48:23,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:48:23,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:48:23,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:48:23,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:48:23,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:48:23,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:48:23,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:48:23,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:48:23,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:48:23,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:48:23,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:48:23,727 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 14:48:23,769 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:48:23,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:48:23,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:48:23,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:48:23,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:48:23,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:48:23,771 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:48:23,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:48:23,771 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:48:23,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:48:23,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:48:23,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:48:23,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:48:23,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:48:23,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:48:23,773 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:48:23,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:48:23,773 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:48:23,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:48:23,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:48:23,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:48:23,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:48:23,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:48:23,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:48:23,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:48:23,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:48:23,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:48:23,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:48:23,776 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:48:23,776 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:48:23,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:48:23,776 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:48:23,776 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_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f4aaad5467edb8ebb713201c5ef1a2ab973a56e3a4674058c8240617473ff22 [2021-11-22 14:48:24,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:48:24,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:48:24,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:48:24,041 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:48:24,042 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:48:24,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c [2021-11-22 14:48:24,104 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/data/0e7f4653e/624c02006398428ebedc7a65016cf9d4/FLAG710ccdf54 [2021-11-22 14:48:24,559 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:48:24,559 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c [2021-11-22 14:48:24,566 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/data/0e7f4653e/624c02006398428ebedc7a65016cf9d4/FLAG710ccdf54 [2021-11-22 14:48:24,945 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/data/0e7f4653e/624c02006398428ebedc7a65016cf9d4 [2021-11-22 14:48:24,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:48:24,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:48:24,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:48:24,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:48:24,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:48:24,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:48:24" (1/1) ... [2021-11-22 14:48:24,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61305bf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:24, skipping insertion in model container [2021-11-22 14:48:24,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:48:24" (1/1) ... [2021-11-22 14:48:24,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:48:24,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:48:25,154 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c[1094,1107] [2021-11-22 14:48:25,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:48:25,168 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:48:25,183 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c[1094,1107] [2021-11-22 14:48:25,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:48:25,198 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:48:25,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:25 WrapperNode [2021-11-22 14:48:25,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:48:25,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:48:25,200 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:48:25,200 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:48:25,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:25" (1/1) ... [2021-11-22 14:48:25,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:25" (1/1) ... [2021-11-22 14:48:25,231 INFO L137 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2021-11-22 14:48:25,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:48:25,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:48:25,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:48:25,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:48:25,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:25" (1/1) ... [2021-11-22 14:48:25,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:25" (1/1) ... [2021-11-22 14:48:25,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:25" (1/1) ... [2021-11-22 14:48:25,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:25" (1/1) ... [2021-11-22 14:48:25,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:25" (1/1) ... [2021-11-22 14:48:25,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:25" (1/1) ... [2021-11-22 14:48:25,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:25" (1/1) ... [2021-11-22 14:48:25,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:48:25,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:48:25,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:48:25,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:48:25,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:25" (1/1) ... [2021-11-22 14:48:25,271 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:48:25,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:48:25,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:48:25,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:48:25,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:48:25,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:48:25,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:48:25,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:48:25,414 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:48:25,416 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:48:25,504 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:48:25,509 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:48:25,510 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 14:48:25,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:48:25 BoogieIcfgContainer [2021-11-22 14:48:25,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:48:25,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:48:25,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:48:25,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:48:25,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:48:24" (1/3) ... [2021-11-22 14:48:25,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72282203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:48:25, skipping insertion in model container [2021-11-22 14:48:25,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:25" (2/3) ... [2021-11-22 14:48:25,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72282203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:48:25, skipping insertion in model container [2021-11-22 14:48:25,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:48:25" (3/3) ... [2021-11-22 14:48:25,520 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c.v+cfa-reducer.c [2021-11-22 14:48:25,525 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:48:25,525 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 14:48:25,591 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:48:25,599 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 14:48:25,599 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 14:48:25,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:48:25,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-22 14:48:25,618 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:48:25,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:48:25,619 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:48:25,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:48:25,625 INFO L85 PathProgramCache]: Analyzing trace with hash 570602568, now seen corresponding path program 1 times [2021-11-22 14:48:25,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:48:25,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629215294] [2021-11-22 14:48:25,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:48:25,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:48:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:48:25,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:48:25,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:48:25,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629215294] [2021-11-22 14:48:25,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629215294] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:48:25,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:48:25,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 14:48:25,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491499264] [2021-11-22 14:48:25,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:48:25,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 14:48:25,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:48:25,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 14:48:25,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 14:48:25,853 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:48:25,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:48:25,938 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2021-11-22 14:48:25,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 14:48:25,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-22 14:48:25,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:48:25,954 INFO L225 Difference]: With dead ends: 30 [2021-11-22 14:48:25,955 INFO L226 Difference]: Without dead ends: 14 [2021-11-22 14:48:25,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 14:48:25,962 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 28 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:48:25,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 59 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:48:25,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-22 14:48:26,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-22 14:48:26,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:48:26,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-11-22 14:48:26,016 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2021-11-22 14:48:26,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:48:26,016 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-11-22 14:48:26,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:48:26,017 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-11-22 14:48:26,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-22 14:48:26,018 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:48:26,018 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:48:26,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 14:48:26,018 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:48:26,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:48:26,020 INFO L85 PathProgramCache]: Analyzing trace with hash 587613229, now seen corresponding path program 1 times [2021-11-22 14:48:26,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:48:26,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418757256] [2021-11-22 14:48:26,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:48:26,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:48:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:48:26,057 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:48:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:48:26,093 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:48:26,099 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 14:48:26,102 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 14:48:26,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 14:48:26,109 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-22 14:48:26,117 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 14:48:26,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:48:26 BoogieIcfgContainer [2021-11-22 14:48:26,142 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 14:48:26,143 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 14:48:26,143 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 14:48:26,144 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 14:48:26,144 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:48:25" (3/4) ... [2021-11-22 14:48:26,147 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 14:48:26,147 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 14:48:26,148 INFO L158 Benchmark]: Toolchain (without parser) took 1199.80ms. Allocated memory was 113.2MB in the beginning and 138.4MB in the end (delta: 25.2MB). Free memory was 83.2MB in the beginning and 110.5MB in the end (delta: -27.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:48:26,149 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:48:26,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.52ms. Allocated memory is still 113.2MB. Free memory was 82.9MB in the beginning and 87.3MB in the end (delta: -4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 14:48:26,150 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.75ms. Allocated memory is still 113.2MB. Free memory was 87.3MB in the beginning and 85.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:48:26,151 INFO L158 Benchmark]: Boogie Preprocessor took 29.03ms. Allocated memory is still 113.2MB. Free memory was 85.7MB in the beginning and 84.9MB in the end (delta: 836.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:48:26,151 INFO L158 Benchmark]: RCFGBuilder took 249.87ms. Allocated memory is still 113.2MB. Free memory was 84.9MB in the beginning and 76.1MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 14:48:26,152 INFO L158 Benchmark]: TraceAbstraction took 629.23ms. Allocated memory was 113.2MB in the beginning and 138.4MB in the end (delta: 25.2MB). Free memory was 75.6MB in the beginning and 110.5MB in the end (delta: -34.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:48:26,153 INFO L158 Benchmark]: Witness Printer took 4.21ms. Allocated memory is still 138.4MB. Free memory is still 110.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:48:26,156 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.52ms. Allocated memory is still 113.2MB. Free memory was 82.9MB in the beginning and 87.3MB in the end (delta: -4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.75ms. Allocated memory is still 113.2MB. Free memory was 87.3MB in the beginning and 85.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.03ms. Allocated memory is still 113.2MB. Free memory was 85.7MB in the beginning and 84.9MB in the end (delta: 836.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 249.87ms. Allocated memory is still 113.2MB. Free memory was 84.9MB in the beginning and 76.1MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 629.23ms. Allocated memory was 113.2MB in the beginning and 138.4MB in the end (delta: 25.2MB). Free memory was 75.6MB in the beginning and 110.5MB in the end (delta: -34.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.21ms. Allocated memory is still 138.4MB. Free memory is still 110.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 45]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 32, overapproximation of someBinaryArithmeticDOUBLEoperation at line 69. Possible FailurePath: [L1] int __return_main; [L12] int __return_76; VAL [__return_76=0, __return_main=0] [L15] double main__x; [L16] double main__y; [L17] main__x = __VERIFIER_nondet_double() [L18] int main____CPAchecker_TMP_0; VAL [__return_76=0, __return_main=0] [L19] COND TRUE main__x >= 0.0 VAL [__return_76=0, __return_main=0] [L21] COND TRUE main__x <= 10.0 [L23] main____CPAchecker_TMP_0 = 1 VAL [__return_76=0, __return_main=0, main____CPAchecker_TMP_0=1] [L24] COND TRUE main____CPAchecker_TMP_0 != 0 [L26] main__y = (main__x * main__x) - main__x VAL [__return_76=0, __return_main=0, main____CPAchecker_TMP_0=1] [L27] COND FALSE !(main__y >= 0) [L69] main__y = (main__x * main__x) + 2.0 VAL [__return_76=0, __return_main=0, main____CPAchecker_TMP_0=1] [L31] int main____CPAchecker_TMP_1; VAL [__return_76=0, __return_main=0, main____CPAchecker_TMP_0=1] [L32] COND FALSE !(main__y >= 0.0) VAL [__return_76=0, __return_main=0, main____CPAchecker_TMP_0=1] [L58] main____CPAchecker_TMP_1 = 0 VAL [__return_76=0, __return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0] [L39] int __tmp_1; [L40] __tmp_1 = main____CPAchecker_TMP_1 [L41] int __VERIFIER_assert__cond; [L42] __VERIFIER_assert__cond = __tmp_1 VAL [__return_76=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0] [L43] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_76=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0] [L45] reach_error() VAL [__return_76=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 20 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-22 14:48:26,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0 --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 9f4aaad5467edb8ebb713201c5ef1a2ab973a56e3a4674058c8240617473ff22 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:48:28,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:48:28,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:48:28,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:48:28,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:48:28,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:48:28,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:48:28,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:48:28,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:48:28,621 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:48:28,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:48:28,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:48:28,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:48:28,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:48:28,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:48:28,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:48:28,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:48:28,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:48:28,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:48:28,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:48:28,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:48:28,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:48:28,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:48:28,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:48:28,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:48:28,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:48:28,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:48:28,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:48:28,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:48:28,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:48:28,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:48:28,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:48:28,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:48:28,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:48:28,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:48:28,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:48:28,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:48:28,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:48:28,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:48:28,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:48:28,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:48:28,688 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-22 14:48:28,730 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:48:28,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:48:28,731 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:48:28,731 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:48:28,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:48:28,733 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:48:28,733 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:48:28,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:48:28,734 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:48:28,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:48:28,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:48:28,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:48:28,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:48:28,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:48:28,736 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 14:48:28,736 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 14:48:28,736 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 14:48:28,736 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:48:28,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:48:28,737 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:48:28,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:48:28,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:48:28,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:48:28,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:48:28,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:48:28,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:48:28,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:48:28,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:48:28,739 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 14:48:28,739 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 14:48:28,739 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:48:28,739 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:48:28,740 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:48:28,740 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:48:28,740 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 14:48:28,740 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_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f4aaad5467edb8ebb713201c5ef1a2ab973a56e3a4674058c8240617473ff22 [2021-11-22 14:48:29,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:48:29,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:48:29,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:48:29,130 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:48:29,131 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:48:29,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c [2021-11-22 14:48:29,190 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/data/46ce3f444/ea8a116536c2494187cc8ec1761368ef/FLAG27b7a854f [2021-11-22 14:48:29,631 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:48:29,632 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c [2021-11-22 14:48:29,640 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/data/46ce3f444/ea8a116536c2494187cc8ec1761368ef/FLAG27b7a854f [2021-11-22 14:48:30,028 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/data/46ce3f444/ea8a116536c2494187cc8ec1761368ef [2021-11-22 14:48:30,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:48:30,034 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:48:30,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:48:30,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:48:30,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:48:30,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:48:30" (1/1) ... [2021-11-22 14:48:30,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73bd1c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:30, skipping insertion in model container [2021-11-22 14:48:30,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:48:30" (1/1) ... [2021-11-22 14:48:30,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:48:30,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:48:30,252 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c[1094,1107] [2021-11-22 14:48:30,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:48:30,276 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:48:30,308 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c[1094,1107] [2021-11-22 14:48:30,312 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:48:30,346 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:48:30,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:30 WrapperNode [2021-11-22 14:48:30,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:48:30,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:48:30,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:48:30,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:48:30,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:30" (1/1) ... [2021-11-22 14:48:30,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:30" (1/1) ... [2021-11-22 14:48:30,396 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2021-11-22 14:48:30,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:48:30,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:48:30,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:48:30,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:48:30,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:30" (1/1) ... [2021-11-22 14:48:30,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:30" (1/1) ... [2021-11-22 14:48:30,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:30" (1/1) ... [2021-11-22 14:48:30,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:30" (1/1) ... [2021-11-22 14:48:30,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:30" (1/1) ... [2021-11-22 14:48:30,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:30" (1/1) ... [2021-11-22 14:48:30,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:30" (1/1) ... [2021-11-22 14:48:30,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:48:30,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:48:30,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:48:30,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:48:30,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:30" (1/1) ... [2021-11-22 14:48:30,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:48:30,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:48:30,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:48:30,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:48:30,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:48:30,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 14:48:30,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:48:30,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:48:30,628 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:48:30,630 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:48:33,611 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:48:33,617 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:48:33,617 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 14:48:33,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:48:33 BoogieIcfgContainer [2021-11-22 14:48:33,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:48:33,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:48:33,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:48:33,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:48:33,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:48:30" (1/3) ... [2021-11-22 14:48:33,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38429ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:48:33, skipping insertion in model container [2021-11-22 14:48:33,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:30" (2/3) ... [2021-11-22 14:48:33,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38429ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:48:33, skipping insertion in model container [2021-11-22 14:48:33,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:48:33" (3/3) ... [2021-11-22 14:48:33,627 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c.v+cfa-reducer.c [2021-11-22 14:48:33,632 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:48:33,632 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 14:48:33,679 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:48:33,686 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 14:48:33,686 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 14:48:33,699 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:48:33,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-22 14:48:33,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:48:33,705 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:48:33,705 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:48:33,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:48:33,711 INFO L85 PathProgramCache]: Analyzing trace with hash 570602568, now seen corresponding path program 1 times [2021-11-22 14:48:33,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:48:33,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333943241] [2021-11-22 14:48:33,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:48:33,723 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:48:33,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:48:33,729 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:48:33,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 14:48:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:48:34,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 14:48:34,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:48:34,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:48:34,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:48:34,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:48:34,445 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:48:34,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333943241] [2021-11-22 14:48:34,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333943241] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:48:34,447 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:48:34,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-22 14:48:34,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120727754] [2021-11-22 14:48:34,449 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:48:34,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:48:34,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:48:34,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:48:34,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:48:34,482 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:48:34,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:48:34,571 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2021-11-22 14:48:34,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 14:48:34,574 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-22 14:48:34,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:48:34,581 INFO L225 Difference]: With dead ends: 30 [2021-11-22 14:48:34,582 INFO L226 Difference]: Without dead ends: 14 [2021-11-22 14:48:34,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 14:48:34,588 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 12 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:48:34,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 80 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:48:34,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-22 14:48:34,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-22 14:48:34,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:48:34,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-11-22 14:48:34,618 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2021-11-22 14:48:34,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:48:34,619 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-11-22 14:48:34,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:48:34,619 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-11-22 14:48:34,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-22 14:48:34,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:48:34,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:48:34,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-22 14:48:34,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:48:34,833 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:48:34,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:48:34,834 INFO L85 PathProgramCache]: Analyzing trace with hash 587613229, now seen corresponding path program 1 times [2021-11-22 14:48:34,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:48:34,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686582871] [2021-11-22 14:48:34,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:48:34,835 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:48:34,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:48:34,839 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:48:34,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 14:48:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:48:35,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 14:48:35,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:48:39,895 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (and (= (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~main__x~0#1| |ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) |c_ULTIMATE.start_main_~main__y~0#1|) (fp.geq |ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53)))) is different from false [2021-11-22 14:48:57,689 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53)) (not (fp.geq (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~main__x~0#1| |ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))))) is different from false [2021-11-22 14:48:59,717 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53)) (not (fp.geq (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~main__x~0#1| |ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))))) is different from true [2021-11-22 14:49:29,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:49:29,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:49:35,967 WARN L838 $PredicateComparison]: unable to prove that (fp.geq (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~main__x~0#1| |c_ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode 2.0)) (_ +zero 11 53)) is different from false [2021-11-22 14:49:55,347 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (or (fp.geq (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| |ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode 2.0)) (_ +zero 11 53)) (not (fp.geq |ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53))))) is different from false [2021-11-22 14:49:57,384 WARN L860 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (or (fp.geq (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| |ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode 2.0)) (_ +zero 11 53)) (not (fp.geq |ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53))))) is different from true [2021-11-22 14:50:05,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:50:05,290 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:50:05,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686582871] [2021-11-22 14:50:05,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686582871] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:50:05,290 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:50:05,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-11-22 14:50:05,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380091050] [2021-11-22 14:50:05,291 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:50:05,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-22 14:50:05,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:50:05,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-22 14:50:05,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=14, Unknown=6, NotChecked=36, Total=72 [2021-11-22 14:50:05,294 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:50:07,328 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (or (fp.geq (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| |ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode 2.0)) (_ +zero 11 53)) (not (fp.geq |ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53)))))) is different from false [2021-11-22 14:50:09,364 WARN L860 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (or (fp.geq (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| |ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode 2.0)) (_ +zero 11 53)) (not (fp.geq |ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53)))))) is different from true [2021-11-22 14:50:13,394 WARN L860 $PredicateComparison]: unable to prove that (and (fp.geq (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~main__x~0#1| |c_ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode 2.0)) (_ +zero 11 53)) (fp.geq |c_ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-22 14:50:29,816 WARN L227 SmtUtils]: Spent 9.30s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:50:29,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:50:29,834 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-11-22 14:50:29,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 14:50:29,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-22 14:50:29,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:50:29,836 INFO L225 Difference]: With dead ends: 21 [2021-11-22 14:50:29,836 INFO L226 Difference]: Without dead ends: 16 [2021-11-22 14:50:29,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 40.4s TimeCoverageRelationStatistics Valid=23, Invalid=20, Unknown=11, NotChecked=78, Total=132 [2021-11-22 14:50:29,838 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:50:29,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 30 Unchecked, 0.0s Time] [2021-11-22 14:50:29,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-22 14:50:29,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-22 14:50:29,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:50:29,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-11-22 14:50:29,844 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 12 [2021-11-22 14:50:29,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:50:29,845 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-11-22 14:50:29,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:50:29,845 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-11-22 14:50:29,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-22 14:50:29,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:50:29,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:50:29,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-22 14:50:30,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:50:30,062 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:50:30,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:50:30,063 INFO L85 PathProgramCache]: Analyzing trace with hash -125142316, now seen corresponding path program 1 times [2021-11-22 14:50:30,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:50:30,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691362237] [2021-11-22 14:50:30,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:50:30,064 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:50:30,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:50:30,065 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:50:30,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-22 14:50:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:50:30,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 14:50:30,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:50:45,086 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (and (= |c_ULTIMATE.start_main_~main__y~0#1| (fp.div currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) currentRoundingMode 10.0))) (fp.geq |ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53)))) is different from true [2021-11-22 14:51:14,217 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (and (fp.geq |ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53)) (not (fp.geq (fp.div currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) currentRoundingMode 10.0)) (_ +zero 11 53))))) is different from false [2021-11-22 14:51:16,296 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (and (fp.geq |ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53)) (not (fp.geq (fp.div currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) currentRoundingMode 10.0)) (_ +zero 11 53))))) is different from true [2021-11-22 14:52:01,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:52:01,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:52:06,737 WARN L860 $PredicateComparison]: unable to prove that (forall ((currentRoundingMode RoundingMode)) (fp.geq (fp.div currentRoundingMode |c_ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) currentRoundingMode 10.0)) (_ +zero 11 53))) is different from true [2021-11-22 14:52:25,179 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (or (forall ((currentRoundingMode RoundingMode)) (fp.geq (fp.div currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) currentRoundingMode 10.0)) (_ +zero 11 53))) (not (fp.geq |ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53))))) is different from false [2021-11-22 14:52:27,287 WARN L860 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (or (forall ((currentRoundingMode RoundingMode)) (fp.geq (fp.div currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) currentRoundingMode 10.0)) (_ +zero 11 53))) (not (fp.geq |ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53))))) is different from true [2021-11-22 14:52:36,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:52:36,404 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:52:36,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691362237] [2021-11-22 14:52:36,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [691362237] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:52:36,405 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:52:36,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-11-22 14:52:36,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633117690] [2021-11-22 14:52:36,405 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:52:36,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 14:52:36,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:52:36,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 14:52:36,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=9, Unknown=6, NotChecked=28, Total=56 [2021-11-22 14:52:36,407 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:52:38,532 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((currentRoundingMode RoundingMode)) (fp.geq (fp.div currentRoundingMode |c_ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) currentRoundingMode 10.0)) (_ +zero 11 53))) (fp.geq |c_ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53))) is different from true [2021-11-22 14:52:53,975 WARN L227 SmtUtils]: Spent 9.97s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:52:53,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:52:53,988 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2021-11-22 14:52:53,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 14:52:53,989 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-22 14:52:53,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:52:53,989 INFO L225 Difference]: With dead ends: 21 [2021-11-22 14:52:53,989 INFO L226 Difference]: Without dead ends: 16 [2021-11-22 14:52:53,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.8s TimeCoverageRelationStatistics Valid=18, Invalid=13, Unknown=9, NotChecked=50, Total=90 [2021-11-22 14:52:53,991 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:52:53,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 17 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 42 Unchecked, 0.0s Time] [2021-11-22 14:52:53,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-22 14:52:53,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2021-11-22 14:52:53,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:52:53,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-11-22 14:52:53,996 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2021-11-22 14:52:53,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:52:53,997 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-11-22 14:52:53,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:52:53,997 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-11-22 14:52:53,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 14:52:53,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:52:53,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:52:54,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-22 14:52:54,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:52:54,217 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:52:54,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:52:54,218 INFO L85 PathProgramCache]: Analyzing trace with hash 519293970, now seen corresponding path program 1 times [2021-11-22 14:52:54,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:52:54,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410498416] [2021-11-22 14:52:54,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:52:54,219 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:52:54,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:52:54,220 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:52:54,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-22 14:52:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:52:54,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 14:52:54,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:53:24,192 WARN L227 SmtUtils]: Spent 10.95s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:53:39,422 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| |ULTIMATE.start_main_~main__x~0#1|))) (and (fp.leq |ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.geq |ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53)) (= (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) |c_ULTIMATE.start_main_~main__y~0#1|) (not (fp.geq (fp.sub c_currentRoundingMode .cse0 |ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-22 14:54:11,972 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| |ULTIMATE.start_main_~main__x~0#1|))) (and (fp.leq |ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) |c_ULTIMATE.start_main_~main__y~0#1|) (not (fp.geq (fp.sub c_currentRoundingMode .cse0 |ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))))) (fp.geq |c_ULTIMATE.start_main_~main__y~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-22 14:54:32,667 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~main__x~0#1| |ULTIMATE.start_main_~main__x~0#1|))) (let ((.cse0 (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 |ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq |ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq .cse0 (_ +zero 11 53)))))) is different from false [2021-11-22 14:54:34,706 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~main__x~0#1| |ULTIMATE.start_main_~main__x~0#1|))) (let ((.cse0 (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 |ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq |ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq .cse0 (_ +zero 11 53)))))) is different from true [2021-11-22 14:54:36,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:54:36,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:54:54,824 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~main__x~0#1| |c_ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode 2.0)))) (or (not (fp.geq .cse0 (_ +zero 11 53))) (fp.geq |c_ULTIMATE.start_main_~main__y~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) is different from false [2021-11-22 14:55:10,692 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~main__x~0#1| |c_ULTIMATE.start_main_~main__x~0#1|))) (let ((.cse0 (fp.add c_currentRoundingMode .cse1 ((_ to_fp 11 53) c_currentRoundingMode 2.0)))) (or (not (fp.geq .cse0 (_ +zero 11 53))) (fp.geq (fp.sub c_currentRoundingMode .cse1 |c_ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0))))) is different from false [2021-11-22 14:55:12,742 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~main__x~0#1| |c_ULTIMATE.start_main_~main__x~0#1|))) (let ((.cse0 (fp.add c_currentRoundingMode .cse1 ((_ to_fp 11 53) c_currentRoundingMode 2.0)))) (or (not (fp.geq .cse0 (_ +zero 11 53))) (fp.geq (fp.sub c_currentRoundingMode .cse1 |c_ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0))))) is different from true [2021-11-22 14:55:18,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:55:18,637 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:55:18,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410498416] [2021-11-22 14:55:18,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410498416] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:55:18,637 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:55:18,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 6] imperfect sequences [] total 13 [2021-11-22 14:55:18,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809065999] [2021-11-22 14:55:18,637 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:55:18,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-22 14:55:18,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:55:18,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-22 14:55:18,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=36, Unknown=10, NotChecked=80, Total=156 [2021-11-22 14:55:18,639 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:55:20,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 14:55:22,770 WARN L838 $PredicateComparison]: unable to prove that (and (fp.leq |c_ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.geq |c_ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53)) (let ((.cse1 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~main__x~0#1| |c_ULTIMATE.start_main_~main__x~0#1|))) (let ((.cse0 (fp.add c_currentRoundingMode .cse1 ((_ to_fp 11 53) c_currentRoundingMode 2.0)))) (or (not (fp.geq .cse0 (_ +zero 11 53))) (fp.geq (fp.sub c_currentRoundingMode .cse1 |c_ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-22 14:55:24,819 WARN L860 $PredicateComparison]: unable to prove that (and (fp.leq |c_ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.geq |c_ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53)) (let ((.cse1 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~main__x~0#1| |c_ULTIMATE.start_main_~main__x~0#1|))) (let ((.cse0 (fp.add c_currentRoundingMode .cse1 ((_ to_fp 11 53) c_currentRoundingMode 2.0)))) (or (not (fp.geq .cse0 (_ +zero 11 53))) (fp.geq (fp.sub c_currentRoundingMode .cse1 |c_ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-22 14:55:26,872 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~main__x~0#1| |c_ULTIMATE.start_main_~main__x~0#1|))) (and (= |c_ULTIMATE.start_main_~main__y~0#1| (fp.sub c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~main__x~0#1|)) (fp.leq |c_ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (let ((.cse1 (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)))) (or (not (fp.geq .cse1 (_ +zero 11 53))) (fp.geq |c_ULTIMATE.start_main_~main__y~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) (fp.geq |c_ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-11-22 14:55:28,918 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~main__x~0#1| |c_ULTIMATE.start_main_~main__x~0#1|))) (and (= |c_ULTIMATE.start_main_~main__y~0#1| (fp.sub c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~main__x~0#1|)) (fp.leq |c_ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (let ((.cse1 (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)))) (or (not (fp.geq .cse1 (_ +zero 11 53))) (fp.geq |c_ULTIMATE.start_main_~main__y~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) (fp.geq |c_ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-11-22 14:55:30,970 WARN L838 $PredicateComparison]: unable to prove that (and (or (not (fp.geq |c_ULTIMATE.start_main_~main__y~0#1| (_ +zero 11 53))) (fp.leq |c_ULTIMATE.start_main_~main__y~0#1| ((_ to_fp 11 53) c_currentRoundingMode 105.0))) (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| |ULTIMATE.start_main_~main__x~0#1|))) (and (fp.leq |ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.geq |ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53)) (= (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) |c_ULTIMATE.start_main_~main__y~0#1|) (not (fp.geq (fp.sub c_currentRoundingMode .cse0 |ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-22 14:55:33,027 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| |ULTIMATE.start_main_~main__x~0#1|))) (and (fp.leq |ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) |c_ULTIMATE.start_main_~main__y~0#1|) (not (fp.geq (fp.sub c_currentRoundingMode .cse0 |ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))))) (fp.geq |c_ULTIMATE.start_main_~main__y~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven) (fp.leq |c_ULTIMATE.start_main_~main__y~0#1| ((_ to_fp 11 53) c_currentRoundingMode 105.0))) is different from false [2021-11-22 14:55:33,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:55:33,046 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2021-11-22 14:55:33,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 14:55:33,047 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-22 14:55:33,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:55:33,048 INFO L225 Difference]: With dead ends: 22 [2021-11-22 14:55:33,048 INFO L226 Difference]: Without dead ends: 14 [2021-11-22 14:55:33,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 47.4s TimeCoverageRelationStatistics Valid=38, Invalid=38, Unknown=16, NotChecked=180, Total=272 [2021-11-22 14:55:33,050 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:55:33,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 33 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 1 Unknown, 37 Unchecked, 2.0s Time] [2021-11-22 14:55:33,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-22 14:55:33,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-22 14:55:33,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:55:33,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2021-11-22 14:55:33,056 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 13 [2021-11-22 14:55:33,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:55:33,056 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2021-11-22 14:55:33,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:55:33,057 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2021-11-22 14:55:33,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 14:55:33,057 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:55:33,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:55:33,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-22 14:55:33,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:55:33,258 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:55:33,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:55:33,259 INFO L85 PathProgramCache]: Analyzing trace with hash -101291445, now seen corresponding path program 1 times [2021-11-22 14:55:33,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:55:33,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105889810] [2021-11-22 14:55:33,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:55:33,260 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:55:33,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:55:33,264 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:55:33,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-22 14:55:33,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:55:33,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 14:55:33,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:55:44,753 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (= |c_ULTIMATE.start_main_~main__y~0#1| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| .cse0)) (fp.leq |ULTIMATE.start_main_~main__x~0#1| .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-22 14:56:02,918 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (= |c_ULTIMATE.start_main_~main__y~0#1| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| .cse0)) (fp.leq |ULTIMATE.start_main_~main__x~0#1| .cse0)))) (fp.geq |c_ULTIMATE.start_main_~main__y~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-22 14:56:20,198 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (let ((.cse0 (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~main__x~0#1| .cse1))) (and (fp.geq .cse0 (_ +zero 11 53)) (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq |ULTIMATE.start_main_~main__x~0#1| .cse1))))) is different from false [2021-11-22 14:56:22,287 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (let ((.cse0 (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~main__x~0#1| .cse1))) (and (fp.geq .cse0 (_ +zero 11 53)) (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq |ULTIMATE.start_main_~main__x~0#1| .cse1))))) is different from true [2021-11-22 14:57:08,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:57:08,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:57:19,330 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (or (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq .cse0 (_ +zero 11 53))))) is different from false [2021-11-22 14:57:21,462 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (or (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq .cse0 (_ +zero 11 53))))) is different from true [2021-11-22 14:57:43,900 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (let ((.cse0 (fp.div c_currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| .cse1))) (or (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq .cse0 (_ +zero 11 53))) (not (fp.leq |ULTIMATE.start_main_~main__x~0#1| .cse1)))))) is different from false [2021-11-22 14:57:46,034 WARN L860 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (let ((.cse0 (fp.div c_currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| .cse1))) (or (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq .cse0 (_ +zero 11 53))) (not (fp.leq |ULTIMATE.start_main_~main__x~0#1| .cse1)))))) is different from true [2021-11-22 14:58:12,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:58:12,303 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:58:12,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2105889810] [2021-11-22 14:58:12,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2105889810] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:58:12,303 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:58:12,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 10 [2021-11-22 14:58:12,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751893909] [2021-11-22 14:58:12,304 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:58:12,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-22 14:58:12,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:58:12,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-22 14:58:12,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=8, NotChecked=60, Total=110 [2021-11-22 14:58:12,305 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:58:14,424 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (let ((.cse0 (fp.div c_currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| .cse1))) (or (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq .cse0 (_ +zero 11 53))) (not (fp.leq |ULTIMATE.start_main_~main__x~0#1| .cse1)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-22 14:58:16,550 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (let ((.cse0 (fp.div c_currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| .cse1))) (or (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq .cse0 (_ +zero 11 53))) (not (fp.leq |ULTIMATE.start_main_~main__x~0#1| .cse1)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-22 14:58:18,674 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (fp.leq |c_ULTIMATE.start_main_~main__x~0#1| .cse0) (let ((.cse1 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~main__x~0#1| .cse0))) (or (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq .cse1 (_ +zero 11 53))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-11-22 14:58:20,805 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (fp.leq |c_ULTIMATE.start_main_~main__x~0#1| .cse0) (let ((.cse1 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~main__x~0#1| .cse0))) (or (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq .cse1 (_ +zero 11 53))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-11-22 14:58:48,323 WARN L227 SmtUtils]: Spent 23.20s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:59:12,281 WARN L227 SmtUtils]: Spent 17.95s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:59:12,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:59:12,282 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2021-11-22 14:59:12,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 14:59:12,283 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-22 14:59:12,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:59:12,283 INFO L225 Difference]: With dead ends: 14 [2021-11-22 14:59:12,283 INFO L226 Difference]: Without dead ends: 0 [2021-11-22 14:59:12,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 77.1s TimeCoverageRelationStatistics Valid=35, Invalid=34, Unknown=15, NotChecked=126, Total=210 [2021-11-22 14:59:12,285 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:59:12,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 3 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 15 Unchecked, 0.0s Time] [2021-11-22 14:59:12,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-22 14:59:12,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-22 14:59:12,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:59:12,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-22 14:59:12,287 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-11-22 14:59:12,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:59:12,288 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 14:59:12,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:59:12,288 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-22 14:59:12,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-22 14:59:12,291 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 14:59:12,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-22 14:59:12,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:59:12,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-22 15:02:04,291 WARN L227 SmtUtils]: Spent 2.86m on a formula simplification. DAG size of input: 46 DAG size of output: 41 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-22 15:02:04,293 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-22 15:02:04,294 INFO L854 garLoopResultBuilder]: At program point L64(lines 32 65) the Hoare annotation is: false [2021-11-22 15:02:04,294 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 71) no Hoare annotation was computed. [2021-11-22 15:02:04,294 INFO L858 garLoopResultBuilder]: For program point L21(lines 21 81) no Hoare annotation was computed. [2021-11-22 15:02:04,294 INFO L861 garLoopResultBuilder]: At program point L85(lines 13 87) the Hoare annotation is: true [2021-11-22 15:02:04,294 INFO L858 garLoopResultBuilder]: For program point L19(lines 19 86) no Hoare annotation was computed. [2021-11-22 15:02:04,294 INFO L858 garLoopResultBuilder]: For program point L34(lines 34 60) no Hoare annotation was computed. [2021-11-22 15:02:04,295 INFO L858 garLoopResultBuilder]: For program point L32(lines 32 65) no Hoare annotation was computed. [2021-11-22 15:02:04,295 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-22 15:02:04,295 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-22 15:02:04,295 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-22 15:02:04,295 INFO L854 garLoopResultBuilder]: At program point L59(lines 34 60) the Hoare annotation is: (= |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| (_ bv1 32)) [2021-11-22 15:02:04,297 INFO L858 garLoopResultBuilder]: For program point L24(lines 24 76) no Hoare annotation was computed. [2021-11-22 15:02:04,297 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 45) no Hoare annotation was computed. [2021-11-22 15:02:04,297 INFO L858 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2021-11-22 15:02:04,297 INFO L858 garLoopResultBuilder]: For program point L43(lines 43 52) no Hoare annotation was computed. [2021-11-22 15:02:04,298 INFO L854 garLoopResultBuilder]: At program point L70(lines 27 71) the Hoare annotation is: (let ((.cse1 (= currentRoundingMode roundNearestTiesToEven)) (.cse2 (fp.leq |ULTIMATE.start_main_~main__y~0#1| ((_ to_fp 11 53) currentRoundingMode 105.0)))) (or (and (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) currentRoundingMode 10.0))) (and (= |ULTIMATE.start_main_~main__y~0#1| (fp.div currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| .cse0)) (fp.leq |ULTIMATE.start_main_~main__x~0#1| .cse0)))) (or (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (and (= (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~main__x~0#1| |ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) |ULTIMATE.start_main_~main__y~0#1|) (fp.geq |ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53)))) (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (and (= |ULTIMATE.start_main_~main__y~0#1| (fp.div currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) currentRoundingMode 10.0))) (fp.geq |ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53))))) .cse1 .cse2) (and (exists ((|ULTIMATE.start_main_~main__x~0#1| (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul currentRoundingMode |ULTIMATE.start_main_~main__x~0#1| |ULTIMATE.start_main_~main__x~0#1|))) (and (fp.leq |ULTIMATE.start_main_~main__x~0#1| ((_ to_fp 11 53) currentRoundingMode 10.0)) (fp.geq |ULTIMATE.start_main_~main__x~0#1| (_ +zero 11 53)) (= (fp.add currentRoundingMode .cse3 ((_ to_fp 11 53) currentRoundingMode 2.0)) |ULTIMATE.start_main_~main__y~0#1|) (not (fp.geq (fp.sub currentRoundingMode .cse3 |ULTIMATE.start_main_~main__x~0#1|) ((_ to_fp 11 53) currentRoundingMode (_ bv0 32))))))) .cse1 .cse2))) [2021-11-22 15:02:04,317 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-22 15:02:04,323 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 15:02:04,347 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,348 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,349 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 15:02:04,349 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 15:02:04,349 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,350 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,350 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 15:02:04,350 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,350 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-22 15:02:04,351 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,351 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-22 15:02:04,351 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,352 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 15:02:04,352 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,352 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,353 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,353 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,354 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,355 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,355 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,355 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 15:02:04,363 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,363 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,364 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 15:02:04,373 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 15:02:04,373 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,373 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,374 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 15:02:04,374 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,374 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-22 15:02:04,374 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,375 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-22 15:02:04,375 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,375 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 15:02:04,375 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,376 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,376 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,376 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,377 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,382 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,382 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,382 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 15:02:04,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 03:02:04 BoogieIcfgContainer [2021-11-22 15:02:04,385 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 15:02:04,386 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 15:02:04,386 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 15:02:04,387 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 15:02:04,387 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:48:33" (3/4) ... [2021-11-22 15:02:04,391 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-22 15:02:04,404 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-22 15:02:04,405 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-22 15:02:04,406 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-22 15:02:04,406 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-22 15:02:04,437 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists ULTIMATE.start_main_~main__x~0#1 : C_DOUBLE :: main__y == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_main_~main__x~0#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 10.0)) && ~fp.leq~DOUBLE(ULTIMATE.start_main_~main__x~0#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 10.0))) && ((\exists ULTIMATE.start_main_~main__x~0#1 : C_DOUBLE :: ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_main_~main__x~0#1, ULTIMATE.start_main_~main__x~0#1), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 2.0)) == main__y && ~fp.geq~DOUBLE(ULTIMATE.start_main_~main__x~0#1, ~Pluszero~LONGDOUBLE())) || (\exists ULTIMATE.start_main_~main__x~0#1 : C_DOUBLE, currentRoundingMode : FloatRoundingMode :: main__y == ~fp.div~DOUBLE(currentRoundingMode, ULTIMATE.start_main_~main__x~0#1, ~to_fp~LONGDOUBLE(currentRoundingMode, 10.0)) && ~fp.geq~DOUBLE(ULTIMATE.start_main_~main__x~0#1, ~Pluszero~LONGDOUBLE())))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.leq~DOUBLE(main__y, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 105.0))) || (((\exists ULTIMATE.start_main_~main__x~0#1 : C_DOUBLE :: ((~fp.leq~DOUBLE(ULTIMATE.start_main_~main__x~0#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 10.0)) && ~fp.geq~DOUBLE(ULTIMATE.start_main_~main__x~0#1, ~Pluszero~LONGDOUBLE())) && ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_main_~main__x~0#1, ULTIMATE.start_main_~main__x~0#1), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2.0)) == main__y) && !~fp.geq~DOUBLE(~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_main_~main__x~0#1, ULTIMATE.start_main_~main__x~0#1), ULTIMATE.start_main_~main__x~0#1), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.leq~DOUBLE(main__y, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 105.0))) [2021-11-22 15:02:04,456 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 15:02:04,456 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 15:02:04,457 INFO L158 Benchmark]: Toolchain (without parser) took 814422.63ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 44.2MB in the beginning and 40.1MB in the end (delta: 4.1MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2021-11-22 15:02:04,457 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 65.0MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:02:04,458 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.28ms. Allocated memory is still 65.0MB. Free memory was 44.0MB in the beginning and 47.8MB in the end (delta: -3.8MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2021-11-22 15:02:04,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.99ms. Allocated memory is still 65.0MB. Free memory was 47.6MB in the beginning and 46.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:02:04,459 INFO L158 Benchmark]: Boogie Preprocessor took 49.48ms. Allocated memory is still 65.0MB. Free memory was 46.0MB in the beginning and 45.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:02:04,459 INFO L158 Benchmark]: RCFGBuilder took 3170.97ms. Allocated memory is still 65.0MB. Free memory was 45.0MB in the beginning and 36.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 15:02:04,460 INFO L158 Benchmark]: TraceAbstraction took 810764.90ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 35.8MB in the beginning and 42.9MB in the end (delta: -7.1MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2021-11-22 15:02:04,460 INFO L158 Benchmark]: Witness Printer took 70.49ms. Allocated memory is still 79.7MB. Free memory was 42.3MB in the beginning and 40.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:02:04,464 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 65.0MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.28ms. Allocated memory is still 65.0MB. Free memory was 44.0MB in the beginning and 47.8MB in the end (delta: -3.8MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.99ms. Allocated memory is still 65.0MB. Free memory was 47.6MB in the beginning and 46.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.48ms. Allocated memory is still 65.0MB. Free memory was 46.0MB in the beginning and 45.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 3170.97ms. Allocated memory is still 65.0MB. Free memory was 45.0MB in the beginning and 36.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 810764.90ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 35.8MB in the beginning and 42.9MB in the end (delta: -7.1MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Witness Printer took 70.49ms. Allocated memory is still 79.7MB. Free memory was 42.3MB in the beginning and 40.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 45]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 810.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 116.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 171.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 165 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 124 IncrementalHoareTripleChecker+Unchecked, 117 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 48 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 27 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 195.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 30, 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 9 NumberOfFragments, 102 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 56 FormulaSimplificationTreeSizeReductionInter, 171.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 518.9s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 114 ConstructedInterpolants, 33 QuantifiedInterpolants, 1041 SizeOfPredicates, 18 NumberOfNonLiveVariables, 163 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: main____CPAchecker_TMP_1 == 1bv32 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant [2021-11-22 15:02:04,496 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,496 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,496 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 15:02:04,497 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 15:02:04,497 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,497 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,497 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 15:02:04,497 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,497 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-22 15:02:04,497 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,497 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-22 15:02:04,497 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,497 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 15:02:04,498 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,498 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,498 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,498 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,498 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,498 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,498 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,498 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 15:02:04,499 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,499 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,499 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 15:02:04,499 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 15:02:04,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,500 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 15:02:04,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-22 15:02:04,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-22 15:02:04,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,500 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-22 15:02:04,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,501 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,501 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,501 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,501 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,501 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0#1,QUANTIFIED] [2021-11-22 15:02:04,501 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((\exists ULTIMATE.start_main_~main__x~0#1 : C_DOUBLE :: main__y == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_main_~main__x~0#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 10.0)) && ~fp.leq~DOUBLE(ULTIMATE.start_main_~main__x~0#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 10.0))) && ((\exists ULTIMATE.start_main_~main__x~0#1 : C_DOUBLE :: ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_main_~main__x~0#1, ULTIMATE.start_main_~main__x~0#1), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 2.0)) == main__y && ~fp.geq~DOUBLE(ULTIMATE.start_main_~main__x~0#1, ~Pluszero~LONGDOUBLE())) || (\exists ULTIMATE.start_main_~main__x~0#1 : C_DOUBLE, currentRoundingMode : FloatRoundingMode :: main__y == ~fp.div~DOUBLE(currentRoundingMode, ULTIMATE.start_main_~main__x~0#1, ~to_fp~LONGDOUBLE(currentRoundingMode, 10.0)) && ~fp.geq~DOUBLE(ULTIMATE.start_main_~main__x~0#1, ~Pluszero~LONGDOUBLE())))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.leq~DOUBLE(main__y, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 105.0))) || (((\exists ULTIMATE.start_main_~main__x~0#1 : C_DOUBLE :: ((~fp.leq~DOUBLE(ULTIMATE.start_main_~main__x~0#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 10.0)) && ~fp.geq~DOUBLE(ULTIMATE.start_main_~main__x~0#1, ~Pluszero~LONGDOUBLE())) && ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_main_~main__x~0#1, ULTIMATE.start_main_~main__x~0#1), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2.0)) == main__y) && !~fp.geq~DOUBLE(~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_main_~main__x~0#1, ULTIMATE.start_main_~main__x~0#1), ULTIMATE.start_main_~main__x~0#1), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.leq~DOUBLE(main__y, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 105.0))) RESULT: Ultimate proved your program to be correct! [2021-11-22 15:02:04,717 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-22 15:02:04,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb3b715-79bb-48bf-bab8-cf2039e99054/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE