./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_loose.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_loose.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF --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 aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:43:36,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:43:36,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:43:36,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:43:36,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:43:36,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:43:36,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:43:36,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:43:36,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:43:36,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:43:36,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:43:36,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:43:36,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:43:36,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:43:36,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:43:36,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:43:36,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:43:36,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:43:36,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:43:36,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:43:36,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:43:36,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:43:36,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:43:36,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:43:36,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:43:36,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:43:36,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:43:36,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:43:36,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:43:36,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:43:36,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:43:36,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:43:36,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:43:36,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:43:36,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:43:36,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:43:36,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:43:36,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:43:36,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:43:36,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:43:36,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:43:36,815 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 05:43:36,867 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:43:36,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:43:36,868 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:43:36,868 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:43:36,869 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:43:36,869 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:43:36,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:43:36,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:43:36,871 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:43:36,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:43:36,872 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:43:36,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:43:36,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:43:36,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:43:36,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:43:36,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:43:36,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:43:36,874 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:43:36,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:43:36,874 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:43:36,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:43:36,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:43:36,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:43:36,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:43:36,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:43:36,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:43:36,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:43:36,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:43:36,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:43:36,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:43:36,879 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:43:36,879 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:43:36,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:43:36,880 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:43:36,880 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_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 [2021-11-20 05:43:37,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:43:37,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:43:37,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:43:37,302 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:43:37,303 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:43:37,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/float-benchs/zonotope_loose.c [2021-11-20 05:43:37,385 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/data/cb97c9b92/1e53ca0bf384416b9f490c15e0f2f2db/FLAG3d5894604 [2021-11-20 05:43:37,928 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:43:37,929 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/sv-benchmarks/c/float-benchs/zonotope_loose.c [2021-11-20 05:43:37,944 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/data/cb97c9b92/1e53ca0bf384416b9f490c15e0f2f2db/FLAG3d5894604 [2021-11-20 05:43:38,278 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/data/cb97c9b92/1e53ca0bf384416b9f490c15e0f2f2db [2021-11-20 05:43:38,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:43:38,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:43:38,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:43:38,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:43:38,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:43:38,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:43:38" (1/1) ... [2021-11-20 05:43:38,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cd575a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:38, skipping insertion in model container [2021-11-20 05:43:38,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:43:38" (1/1) ... [2021-11-20 05:43:38,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:43:38,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:43:38,501 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_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2021-11-20 05:43:38,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:43:38,521 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:43:38,532 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_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2021-11-20 05:43:38,535 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:43:38,548 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:43:38,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:38 WrapperNode [2021-11-20 05:43:38,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:43:38,549 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:43:38,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:43:38,550 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:43:38,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:38" (1/1) ... [2021-11-20 05:43:38,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:38" (1/1) ... [2021-11-20 05:43:38,580 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2021-11-20 05:43:38,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:43:38,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:43:38,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:43:38,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:43:38,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:38" (1/1) ... [2021-11-20 05:43:38,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:38" (1/1) ... [2021-11-20 05:43:38,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:38" (1/1) ... [2021-11-20 05:43:38,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:38" (1/1) ... [2021-11-20 05:43:38,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:38" (1/1) ... [2021-11-20 05:43:38,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:38" (1/1) ... [2021-11-20 05:43:38,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:38" (1/1) ... [2021-11-20 05:43:38,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:43:38,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:43:38,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:43:38,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:43:38,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:38" (1/1) ... [2021-11-20 05:43:38,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:43:38,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:43:38,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:43:38,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:43:38,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:43:38,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:43:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:43:38,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:43:38,754 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:43:38,755 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:43:38,866 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:43:38,876 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:43:38,876 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 05:43:38,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:43:38 BoogieIcfgContainer [2021-11-20 05:43:38,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:43:38,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:43:38,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:43:38,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:43:38,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:43:38" (1/3) ... [2021-11-20 05:43:38,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8d0cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:43:38, skipping insertion in model container [2021-11-20 05:43:38,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:38" (2/3) ... [2021-11-20 05:43:38,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8d0cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:43:38, skipping insertion in model container [2021-11-20 05:43:38,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:43:38" (3/3) ... [2021-11-20 05:43:38,890 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c [2021-11-20 05:43:38,896 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:43:38,896 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 05:43:38,949 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:43:38,958 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 [2021-11-20 05:43:38,958 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 05:43:38,974 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 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) [2021-11-20 05:43:38,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-20 05:43:38,993 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:43:38,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:43:38,995 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:43:39,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:43:39,009 INFO L85 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times [2021-11-20 05:43:39,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:43:39,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516306731] [2021-11-20 05:43:39,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:43:39,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:43:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:39,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:43:39,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:43:39,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516306731] [2021-11-20 05:43:39,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516306731] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:43:39,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:43:39,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:43:39,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312554351] [2021-11-20 05:43:39,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:43:39,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 05:43:39,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:43:39,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 05:43:39,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 05:43:39,273 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 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) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-20 05:43:39,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:43:39,290 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2021-11-20 05:43:39,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 05:43:39,293 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-20 05:43:39,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:43:39,304 INFO L225 Difference]: With dead ends: 23 [2021-11-20 05:43:39,304 INFO L226 Difference]: Without dead ends: 9 [2021-11-20 05:43:39,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 05:43:39,316 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:43:39,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:43:39,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-20 05:43:39,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-20 05:43:39,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-11-20 05:43:39,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-11-20 05:43:39,363 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2021-11-20 05:43:39,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:43:39,364 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-11-20 05:43:39,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-20 05:43:39,364 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-11-20 05:43:39,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-20 05:43:39,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:43:39,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:43:39,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:43:39,367 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:43:39,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:43:39,372 INFO L85 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times [2021-11-20 05:43:39,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:43:39,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825632511] [2021-11-20 05:43:39,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:43:39,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:43:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:43:39,410 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:43:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:43:39,470 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:43:39,471 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 05:43:39,474 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 05:43:39,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 05:43:39,482 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-20 05:43:39,488 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 05:43:39,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:43:39 BoogieIcfgContainer [2021-11-20 05:43:39,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 05:43:39,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 05:43:39,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 05:43:39,531 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 05:43:39,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:43:38" (3/4) ... [2021-11-20 05:43:39,536 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 05:43:39,536 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 05:43:39,539 INFO L158 Benchmark]: Toolchain (without parser) took 1254.53ms. Allocated memory is still 109.1MB. Free memory was 74.1MB in the beginning and 51.5MB in the end (delta: 22.6MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2021-11-20 05:43:39,539 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 109.1MB. Free memory was 83.4MB in the beginning and 83.3MB in the end (delta: 25.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:43:39,541 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.93ms. Allocated memory is still 109.1MB. Free memory was 73.9MB in the beginning and 85.1MB in the end (delta: -11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 05:43:39,545 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.52ms. Allocated memory is still 109.1MB. Free memory was 85.1MB in the beginning and 83.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:43:39,546 INFO L158 Benchmark]: Boogie Preprocessor took 19.64ms. Allocated memory is still 109.1MB. Free memory was 83.4MB in the beginning and 82.9MB in the end (delta: 512.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:43:39,549 INFO L158 Benchmark]: RCFGBuilder took 276.84ms. Allocated memory is still 109.1MB. Free memory was 82.4MB in the beginning and 74.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 05:43:39,550 INFO L158 Benchmark]: TraceAbstraction took 645.91ms. Allocated memory is still 109.1MB. Free memory was 73.5MB in the beginning and 51.5MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-20 05:43:39,550 INFO L158 Benchmark]: Witness Printer took 7.20ms. Allocated memory is still 109.1MB. Free memory is still 51.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:43:39,559 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 109.1MB. Free memory was 83.4MB in the beginning and 83.3MB in the end (delta: 25.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.93ms. Allocated memory is still 109.1MB. Free memory was 73.9MB in the beginning and 85.1MB in the end (delta: -11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.52ms. Allocated memory is still 109.1MB. Free memory was 85.1MB in the beginning and 83.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.64ms. Allocated memory is still 109.1MB. Free memory was 83.4MB in the beginning and 82.9MB in the end (delta: 512.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 276.84ms. Allocated memory is still 109.1MB. Free memory was 82.4MB in the beginning and 74.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 645.91ms. Allocated memory is still 109.1MB. Free memory was 73.5MB in the beginning and 51.5MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 7.20ms. Allocated memory is still 109.1MB. Free memory is still 51.5MB. 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: 14]: 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 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 24. Possible FailurePath: [L18] double x,y; [L20] x = __VERIFIER_nondet_double() [L21] CALL assume_abort_if_not(x >= 0. && x <= 10.) [L12] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L21] RET assume_abort_if_not(x >= 0. && x <= 10.) [L23] y = x*x - x [L24] COND TRUE y >= 0 [L24] y = x / 10. [L27] CALL __VERIFIER_assert(y >= 0. && y <= 105.) [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L14] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 13 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 [2021-11-20 05:43:39,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/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_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_loose.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF --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 aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:43:42,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:43:42,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:43:42,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:43:42,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:43:42,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:43:42,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:43:42,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:43:42,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:43:42,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:43:42,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:43:42,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:43:42,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:43:42,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:43:42,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:43:42,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:43:42,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:43:42,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:43:42,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:43:42,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:43:42,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:43:42,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:43:42,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:43:42,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:43:42,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:43:42,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:43:42,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:43:42,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:43:42,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:43:42,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:43:42,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:43:42,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:43:42,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:43:42,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:43:42,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:43:42,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:43:42,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:43:42,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:43:42,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:43:42,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:43:42,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:43:42,410 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-20 05:43:42,475 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:43:42,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:43:42,477 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:43:42,477 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:43:42,478 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:43:42,478 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:43:42,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:43:42,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:43:42,480 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:43:42,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:43:42,482 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:43:42,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:43:42,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:43:42,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:43:42,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:43:42,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:43:42,484 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 05:43:42,484 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 05:43:42,484 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 05:43:42,484 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:43:42,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:43:42,485 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:43:42,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:43:42,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:43:42,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:43:42,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:43:42,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:43:42,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:43:42,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:43:42,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:43:42,487 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 05:43:42,487 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 05:43:42,488 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:43:42,488 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:43:42,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:43:42,488 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:43:42,489 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 05:43:42,489 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_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 [2021-11-20 05:43:42,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:43:42,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:43:42,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:43:42,985 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:43:42,985 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:43:42,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/float-benchs/zonotope_loose.c [2021-11-20 05:43:43,084 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/data/a8bf6d526/b41a1f8606724142b6bafffe9dfff8a6/FLAGa3b430414 [2021-11-20 05:43:43,695 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:43:43,696 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/sv-benchmarks/c/float-benchs/zonotope_loose.c [2021-11-20 05:43:43,703 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/data/a8bf6d526/b41a1f8606724142b6bafffe9dfff8a6/FLAGa3b430414 [2021-11-20 05:43:44,070 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/data/a8bf6d526/b41a1f8606724142b6bafffe9dfff8a6 [2021-11-20 05:43:44,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:43:44,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:43:44,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:43:44,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:43:44,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:43:44,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:43:44" (1/1) ... [2021-11-20 05:43:44,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e6d2353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:44, skipping insertion in model container [2021-11-20 05:43:44,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:43:44" (1/1) ... [2021-11-20 05:43:44,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:43:44,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:43:44,319 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_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2021-11-20 05:43:44,332 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:43:44,347 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:43:44,372 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_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2021-11-20 05:43:44,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:43:44,401 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:43:44,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:44 WrapperNode [2021-11-20 05:43:44,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:43:44,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:43:44,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:43:44,406 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:43:44,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:44" (1/1) ... [2021-11-20 05:43:44,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:44" (1/1) ... [2021-11-20 05:43:44,476 INFO L137 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 32 [2021-11-20 05:43:44,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:43:44,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:43:44,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:43:44,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:43:44,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:44" (1/1) ... [2021-11-20 05:43:44,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:44" (1/1) ... [2021-11-20 05:43:44,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:44" (1/1) ... [2021-11-20 05:43:44,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:44" (1/1) ... [2021-11-20 05:43:44,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:44" (1/1) ... [2021-11-20 05:43:44,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:44" (1/1) ... [2021-11-20 05:43:44,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:44" (1/1) ... [2021-11-20 05:43:44,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:43:44,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:43:44,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:43:44,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:43:44,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:44" (1/1) ... [2021-11-20 05:43:44,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:43:44,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:43:44,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:43:44,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:43:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:43:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 05:43:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:43:44,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:43:44,746 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:43:44,748 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:43:47,868 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:43:47,875 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:43:47,875 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 05:43:47,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:43:47 BoogieIcfgContainer [2021-11-20 05:43:47,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:43:47,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:43:47,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:43:47,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:43:47,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:43:44" (1/3) ... [2021-11-20 05:43:47,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51be685e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:43:47, skipping insertion in model container [2021-11-20 05:43:47,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:43:44" (2/3) ... [2021-11-20 05:43:47,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51be685e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:43:47, skipping insertion in model container [2021-11-20 05:43:47,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:43:47" (3/3) ... [2021-11-20 05:43:47,888 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c [2021-11-20 05:43:47,895 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:43:47,895 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 05:43:47,965 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:43:47,978 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 [2021-11-20 05:43:47,979 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 05:43:48,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 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) [2021-11-20 05:43:48,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-20 05:43:48,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:43:48,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:43:48,008 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:43:48,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:43:48,015 INFO L85 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times [2021-11-20 05:43:48,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:43:48,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [10959991] [2021-11-20 05:43:48,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:43:48,053 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:43:48,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:43:48,055 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:43:48,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 05:43:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:48,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 05:43:48,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:43:49,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:43:49,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:43:49,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:43:49,097 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:43:49,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [10959991] [2021-11-20 05:43:49,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [10959991] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:43:49,098 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:43:49,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 05:43:49,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22560651] [2021-11-20 05:43:49,101 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:43:49,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 05:43:49,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:43:49,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 05:43:49,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 05:43:49,142 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 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) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-20 05:43:49,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:43:49,160 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2021-11-20 05:43:49,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 05:43:49,163 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-20 05:43:49,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:43:49,172 INFO L225 Difference]: With dead ends: 23 [2021-11-20 05:43:49,173 INFO L226 Difference]: Without dead ends: 9 [2021-11-20 05:43:49,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 05:43:49,181 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:43:49,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:43:49,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-20 05:43:49,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-20 05:43:49,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-11-20 05:43:49,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-11-20 05:43:49,221 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2021-11-20 05:43:49,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:43:49,221 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-11-20 05:43:49,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-20 05:43:49,222 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-11-20 05:43:49,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-20 05:43:49,223 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:43:49,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:43:49,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 05:43:49,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:43:49,451 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:43:49,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:43:49,452 INFO L85 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times [2021-11-20 05:43:49,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:43:49,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496828050] [2021-11-20 05:43:49,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:43:49,453 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:43:49,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:43:49,454 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:43:49,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 05:43:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:50,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:43:50,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:44:20,791 WARN L227 SmtUtils]: Spent 10.11s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 05:45:34,774 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (let ((.cse1 (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (not .cse1)) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1)))))) is different from true [2021-11-20 05:45:51,532 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from false [2021-11-20 05:45:53,620 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from true [2021-11-20 05:45:53,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:45:53,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:46:05,057 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.geq .cse0 (_ +zero 11 53)) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) is different from false [2021-11-20 05:46:07,183 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.geq .cse0 (_ +zero 11 53)) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) is different from true [2021-11-20 05:46:27,474 WARN L838 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)) (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.geq .cse0 (_ +zero 11 53)) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0))))) is different from false [2021-11-20 05:46:29,604 WARN L860 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)) (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.geq .cse0 (_ +zero 11 53)) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0))))) is different from true [2021-11-20 05:47:09,737 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~x~0#1_7| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.geq |v_ULTIMATE.start_main_~x~0#1_7| (_ +zero 11 53))) (fp.leq (fp.div c_currentRoundingMode |v_ULTIMATE.start_main_~x~0#1_7| .cse0) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.leq |v_ULTIMATE.start_main_~x~0#1_7| .cse0))))) is different from false [2021-11-20 05:47:11,881 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~x~0#1_7| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.geq |v_ULTIMATE.start_main_~x~0#1_7| (_ +zero 11 53))) (fp.leq (fp.div c_currentRoundingMode |v_ULTIMATE.start_main_~x~0#1_7| .cse0) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.leq |v_ULTIMATE.start_main_~x~0#1_7| .cse0))))) is different from true [2021-11-20 05:47:11,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:47:11,882 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:47:11,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496828050] [2021-11-20 05:47:11,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496828050] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:47:11,883 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:47:11,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-11-20 05:47:11,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717451158] [2021-11-20 05:47:11,883 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:47:11,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 05:47:11,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:47:11,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 05:47:11,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=37, Unknown=13, NotChecked=80, Total=156 [2021-11-20 05:47:11,887 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 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) [2021-11-20 05:47:14,001 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~x~0#1_7| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.geq |v_ULTIMATE.start_main_~x~0#1_7| (_ +zero 11 53))) (fp.leq (fp.div c_currentRoundingMode |v_ULTIMATE.start_main_~x~0#1_7| .cse0) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.leq |v_ULTIMATE.start_main_~x~0#1_7| .cse0))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-20 05:47:16,130 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~x~0#1_7| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.geq |v_ULTIMATE.start_main_~x~0#1_7| (_ +zero 11 53))) (fp.leq (fp.div c_currentRoundingMode |v_ULTIMATE.start_main_~x~0#1_7| .cse0) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.leq |v_ULTIMATE.start_main_~x~0#1_7| .cse0))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-20 05:47:18,274 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32))) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (or .cse0 (let ((.cse1 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse2))) (and (fp.geq .cse1 (_ +zero 11 53)) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 105.0))))) (let ((.cse3 (fp.leq |c_ULTIMATE.start_main_~x~0#1| .cse2)) (.cse4 (fp.geq |c_ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)))) (or (and .cse0 (or (not .cse3) (not .cse4))) (and .cse3 .cse4 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-11-20 05:47:20,403 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32))) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (or .cse0 (let ((.cse1 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse2))) (and (fp.geq .cse1 (_ +zero 11 53)) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 105.0))))) (let ((.cse3 (fp.leq |c_ULTIMATE.start_main_~x~0#1| .cse2)) (.cse4 (fp.geq |c_ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)))) (or (and .cse0 (or (not .cse3) (not .cse4))) (and .cse3 .cse4 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-11-20 05:47:22,533 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse1))) (and (fp.geq .cse0 (_ +zero 11 53)) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.leq |c_ULTIMATE.start_main_~x~0#1| .cse1) (fp.geq |c_ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2021-11-20 05:47:24,659 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse1))) (and (fp.geq .cse0 (_ +zero 11 53)) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.leq |c_ULTIMATE.start_main_~x~0#1| .cse1) (fp.geq |c_ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true [2021-11-20 05:47:51,449 WARN L227 SmtUtils]: Spent 24.18s on a formula simplification. DAG size of input: 19 DAG size of output: 18 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 05:47:53,580 WARN L838 $PredicateComparison]: unable to prove that (and (not (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))) (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (let ((.cse1 (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (not .cse1)) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1))))))) is different from false [2021-11-20 05:47:53,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:47:53,592 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-11-20 05:47:53,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:47:53,593 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 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 8 [2021-11-20 05:47:53,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:47:53,594 INFO L225 Difference]: With dead ends: 13 [2021-11-20 05:47:53,594 INFO L226 Difference]: Without dead ends: 9 [2021-11-20 05:47:53,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 84.5s TimeCoverageRelationStatistics Valid=39, Invalid=49, Unknown=20, NotChecked=198, Total=306 [2021-11-20 05:47:53,598 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:47:53,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 21 Unchecked, 0.0s Time] [2021-11-20 05:47:53,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-20 05:47:53,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-20 05:47:53,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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) [2021-11-20 05:47:53,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-11-20 05:47:53,602 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2021-11-20 05:47:53,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:47:53,603 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-11-20 05:47:53,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 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) [2021-11-20 05:47:53,603 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-11-20 05:47:53,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-20 05:47:53,604 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:47:53,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:47:53,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 05:47:53,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:47:53,811 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:47:53,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:53,812 INFO L85 PathProgramCache]: Analyzing trace with hash 176701705, now seen corresponding path program 1 times [2021-11-20 05:47:53,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:47:53,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1370458339] [2021-11-20 05:47:53,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:53,813 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:47:53,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:47:53,815 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:47:53,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 05:47:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:54,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 05:47:54,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:48:11,417 WARN L838 $PredicateComparison]: unable to prove that (and (= (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~x~0#1|) |c_ULTIMATE.start_main_~x~0#1|) |c_ULTIMATE.start_main_~y~0#1|) (fp.leq |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.geq |c_ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-20 05:48:30,158 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (= (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) |c_ULTIMATE.start_main_~y~0#1|) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (not (fp.geq (fp.sub c_currentRoundingMode .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-20 05:50:15,833 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (let ((.cse1 (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (fp.geq .cse1 (_ +zero 11 53))) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (not (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))))) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from false [2021-11-20 05:50:17,867 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (let ((.cse1 (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (fp.geq .cse1 (_ +zero 11 53))) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (not (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))))) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from true [2021-11-20 05:50:38,529 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from false [2021-11-20 05:50:40,565 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from true [2021-11-20 05:50:40,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:40,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:50:51,028 WARN L838 $PredicateComparison]: unable to prove that (or (fp.geq |c_ULTIMATE.start_main_~y~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0))) is different from false [2021-11-20 05:51:01,325 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~x~0#1|))) (or (fp.geq (fp.sub c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) is different from false [2021-11-20 05:51:03,371 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~x~0#1|))) (or (fp.geq (fp.sub c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) is different from true [2021-11-20 05:51:47,195 WARN L227 SmtUtils]: Spent 14.46s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 05:52:05,861 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~x~0#1_8| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~x~0#1_8| |v_ULTIMATE.start_main_~x~0#1_8|))) (or (not (fp.leq |v_ULTIMATE.start_main_~x~0#1_8| ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq |v_ULTIMATE.start_main_~x~0#1_8| (_ +zero 11 53))) (fp.geq (fp.sub c_currentRoundingMode .cse0 |v_ULTIMATE.start_main_~x~0#1_8|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) is different from false [2021-11-20 05:52:07,909 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~x~0#1_8| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~x~0#1_8| |v_ULTIMATE.start_main_~x~0#1_8|))) (or (not (fp.leq |v_ULTIMATE.start_main_~x~0#1_8| ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq |v_ULTIMATE.start_main_~x~0#1_8| (_ +zero 11 53))) (fp.geq (fp.sub c_currentRoundingMode .cse0 |v_ULTIMATE.start_main_~x~0#1_8|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) is different from true [2021-11-20 05:52:07,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:52:07,910 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:52:07,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1370458339] [2021-11-20 05:52:07,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1370458339] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:52:07,911 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:52:07,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 14 [2021-11-20 05:52:07,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20130993] [2021-11-20 05:52:07,912 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:52:07,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-20 05:52:07,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:52:07,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-20 05:52:07,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=37, Unknown=18, NotChecked=126, Total=210 [2021-11-20 05:52:07,914 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 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) [2021-11-20 05:52:09,920 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:12,018 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~x~0#1_8| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~x~0#1_8| |v_ULTIMATE.start_main_~x~0#1_8|))) (or (not (fp.leq |v_ULTIMATE.start_main_~x~0#1_8| ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq |v_ULTIMATE.start_main_~x~0#1_8| (_ +zero 11 53))) (fp.geq (fp.sub c_currentRoundingMode .cse0 |v_ULTIMATE.start_main_~x~0#1_8|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-20 05:52:14,065 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~x~0#1_8| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~x~0#1_8| |v_ULTIMATE.start_main_~x~0#1_8|))) (or (not (fp.leq |v_ULTIMATE.start_main_~x~0#1_8| ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq |v_ULTIMATE.start_main_~x~0#1_8| (_ +zero 11 53))) (fp.geq (fp.sub c_currentRoundingMode .cse0 |v_ULTIMATE.start_main_~x~0#1_8|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-20 05:52:16,116 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)))) (and (let ((.cse1 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~x~0#1|))) (or .cse0 (fp.geq (fp.sub c_currentRoundingMode .cse1 |c_ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse1 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) (let ((.cse2 (fp.leq |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (.cse3 (fp.geq |c_ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)))) (or (and .cse0 (or (not .cse2) (not .cse3))) (and .cse2 .cse3 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-11-20 05:52:18,165 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)))) (and (let ((.cse1 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~x~0#1|))) (or .cse0 (fp.geq (fp.sub c_currentRoundingMode .cse1 |c_ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse1 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) (let ((.cse2 (fp.leq |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (.cse3 (fp.geq |c_ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)))) (or (and .cse0 (or (not .cse2) (not .cse3))) (and .cse2 .cse3 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-11-20 05:52:20,216 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse0 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~x~0#1|))) (or (fp.geq (fp.sub c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) (fp.leq |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.geq |c_ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-20 05:52:22,265 WARN L860 $PredicateComparison]: unable to prove that (and (let ((.cse0 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~x~0#1|))) (or (fp.geq (fp.sub c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) (fp.leq |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.geq |c_ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-20 05:52:24,316 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~x~0#1|))) (and (or (fp.geq |c_ULTIMATE.start_main_~y~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0))) (= (fp.sub c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~x~0#1|) |c_ULTIMATE.start_main_~y~0#1|) (fp.leq |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.geq |c_ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-11-20 05:52:26,358 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~x~0#1|))) (and (or (fp.geq |c_ULTIMATE.start_main_~y~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0))) (= (fp.sub c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~x~0#1|) |c_ULTIMATE.start_main_~y~0#1|) (fp.leq |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.geq |c_ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-11-20 05:52:28,407 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (= (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) |c_ULTIMATE.start_main_~y~0#1|) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (not (fp.geq (fp.sub c_currentRoundingMode .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) (fp.leq |c_ULTIMATE.start_main_~y~0#1| ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq |c_ULTIMATE.start_main_~y~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-20 05:52:30,470 WARN L838 $PredicateComparison]: unable to prove that (and (not (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))) (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (let ((.cse1 (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (fp.geq .cse1 (_ +zero 11 53))) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (not (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))))) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)))))) is different from false [2021-11-20 05:52:30,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:52:30,477 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2021-11-20 05:52:30,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:52:30,477 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 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 8 [2021-11-20 05:52:30,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:52:30,478 INFO L225 Difference]: With dead ends: 9 [2021-11-20 05:52:30,478 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 05:52:30,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 13 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 76.4s TimeCoverageRelationStatistics Valid=41, Invalid=39, Unknown=28, NotChecked=312, Total=420 [2021-11-20 05:52:30,480 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:52:30,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 11 Unchecked, 2.1s Time] [2021-11-20 05:52:30,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 05:52:30,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 05:52:30,481 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) [2021-11-20 05:52:30,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 05:52:30,482 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-11-20 05:52:30,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:52:30,482 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 05:52:30,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 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) [2021-11-20 05:52:30,482 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 05:52:30,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 05:52:30,485 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 05:52:30,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 05:52:30,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:52:30,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 05:52:30,721 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 05:52:30,722 INFO L858 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-11-20 05:52:30,722 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 05:52:30,722 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 05:52:30,722 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 05:52:30,723 INFO L861 garLoopResultBuilder]: At program point L28(lines 16 29) the Hoare annotation is: true [2021-11-20 05:52:30,723 INFO L858 garLoopResultBuilder]: For program point L24(lines 24 25) no Hoare annotation was computed. [2021-11-20 05:52:30,723 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-11-20 05:52:30,723 INFO L858 garLoopResultBuilder]: For program point L24-2(lines 24 25) no Hoare annotation was computed. [2021-11-20 05:52:30,723 INFO L858 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2021-11-20 05:52:30,724 INFO L858 garLoopResultBuilder]: For program point L14-1(line 14) no Hoare annotation was computed. [2021-11-20 05:52:30,724 INFO L858 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-11-20 05:52:30,724 INFO L861 garLoopResultBuilder]: At program point L14-3(line 14) the Hoare annotation is: true [2021-11-20 05:52:30,728 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-20 05:52:30,729 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 05:52:30,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:52:30 BoogieIcfgContainer [2021-11-20 05:52:30,736 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 05:52:30,737 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 05:52:30,737 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 05:52:30,738 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 05:52:30,738 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:43:47" (3/4) ... [2021-11-20 05:52:30,741 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 05:52:30,751 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-20 05:52:30,751 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-20 05:52:30,751 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 05:52:30,752 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 05:52:30,789 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 05:52:30,789 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 05:52:30,790 INFO L158 Benchmark]: Toolchain (without parser) took 526713.51ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 38.4MB in the beginning and 58.6MB in the end (delta: -20.1MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2021-11-20 05:52:30,791 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 58.7MB. Free memory is still 39.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:52:30,791 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.13ms. Allocated memory is still 58.7MB. Free memory was 38.2MB in the beginning and 28.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 05:52:30,792 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.99ms. Allocated memory is still 58.7MB. Free memory was 28.0MB in the beginning and 41.5MB in the end (delta: -13.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 05:52:30,792 INFO L158 Benchmark]: Boogie Preprocessor took 60.31ms. Allocated memory is still 58.7MB. Free memory was 41.4MB in the beginning and 40.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:52:30,792 INFO L158 Benchmark]: RCFGBuilder took 3338.33ms. Allocated memory is still 58.7MB. Free memory was 40.3MB in the beginning and 32.1MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 05:52:30,793 INFO L158 Benchmark]: TraceAbstraction took 522856.68ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 31.5MB in the beginning and 29.1MB in the end (delta: 2.4MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2021-11-20 05:52:30,794 INFO L158 Benchmark]: Witness Printer took 52.44ms. Allocated memory is still 77.6MB. Free memory was 29.1MB in the beginning and 58.6MB in the end (delta: -29.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:52:30,796 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 58.7MB. Free memory is still 39.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.13ms. Allocated memory is still 58.7MB. Free memory was 38.2MB in the beginning and 28.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.99ms. Allocated memory is still 58.7MB. Free memory was 28.0MB in the beginning and 41.5MB in the end (delta: -13.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.31ms. Allocated memory is still 58.7MB. Free memory was 41.4MB in the beginning and 40.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 3338.33ms. Allocated memory is still 58.7MB. Free memory was 40.3MB in the beginning and 32.1MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 522856.68ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 31.5MB in the beginning and 29.1MB in the end (delta: 2.4MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * Witness Printer took 52.44ms. Allocated memory is still 77.6MB. Free memory was 29.1MB in the beginning and 58.6MB in the end (delta: -29.5MB). Peak memory consumption was 2.1MB. 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 - PositiveResult [Line: 14]: 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, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 522.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 64.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 32 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 17 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 22 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 160.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 455.6s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 8 QuantifiedInterpolants, 572 SizeOfPredicates, 14 NumberOfNonLiveVariables, 75 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-20 05:52:31,024 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-20 05:52:31,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901f6895-aaf2-4f67-8c67-c2c4ff09a0c6/bin/uautomizer-DQz5hQGWxF/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 Writing output log to file Ultimate.log Result: TRUE