./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa --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 198a885d453136e0f485e10bae010eb2ed68236b2d57919bf162df9bdad27ee6 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:46:50,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:46:50,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:46:50,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:46:50,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:46:50,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:46:50,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:46:50,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:46:50,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:46:50,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:46:50,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:46:50,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:46:50,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:46:50,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:46:50,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:46:50,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:46:50,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:46:50,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:46:50,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:46:50,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:46:50,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:46:50,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:46:50,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:46:50,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:46:50,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:46:50,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:46:50,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:46:50,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:46:50,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:46:50,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:46:50,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:46:50,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:46:50,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:46:50,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:46:50,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:46:50,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:46:50,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:46:50,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:46:50,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:46:50,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:46:50,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:46:50,923 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 20:46:50,946 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:46:50,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:46:50,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:46:50,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:46:50,947 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:46:50,947 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:46:50,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:46:50,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:46:50,948 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:46:50,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:46:50,948 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 20:46:50,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:46:50,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 20:46:50,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:46:50,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:46:50,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:46:50,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:46:50,949 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 20:46:50,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:46:50,949 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:46:50,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:46:50,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:46:50,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:46:50,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:46:50,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:46:50,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:46:50,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:46:50,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:46:50,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:46:50,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 20:46:50,957 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:46:50,957 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:46:50,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:46:50,957 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:46:50,957 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_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 198a885d453136e0f485e10bae010eb2ed68236b2d57919bf162df9bdad27ee6 [2021-12-06 20:46:51,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:46:51,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:46:51,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:46:51,136 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:46:51,137 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:46:51,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c [2021-12-06 20:46:51,184 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/data/454d4f4a8/df8b7b498e244e6a9b29080373b353f4/FLAG9cedef481 [2021-12-06 20:46:51,552 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:46:51,553 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c [2021-12-06 20:46:51,557 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/data/454d4f4a8/df8b7b498e244e6a9b29080373b353f4/FLAG9cedef481 [2021-12-06 20:46:51,566 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/data/454d4f4a8/df8b7b498e244e6a9b29080373b353f4 [2021-12-06 20:46:51,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:46:51,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:46:51,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:46:51,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:46:51,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:46:51,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:46:51" (1/1) ... [2021-12-06 20:46:51,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ef804a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:51, skipping insertion in model container [2021-12-06 20:46:51,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:46:51" (1/1) ... [2021-12-06 20:46:51,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:46:51,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:46:51,707 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_a339aee3-0f50-4f71-80dd-7d52ec7465f1/sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c[1306,1319] [2021-12-06 20:46:51,711 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:46:51,717 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:46:51,733 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_a339aee3-0f50-4f71-80dd-7d52ec7465f1/sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c[1306,1319] [2021-12-06 20:46:51,735 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:46:51,745 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:46:51,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:51 WrapperNode [2021-12-06 20:46:51,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:46:51,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:46:51,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:46:51,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:46:51,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:51" (1/1) ... [2021-12-06 20:46:51,758 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:51" (1/1) ... [2021-12-06 20:46:51,774 INFO L137 Inliner]: procedures = 18, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 99 [2021-12-06 20:46:51,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:46:51,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:46:51,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:46:51,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:46:51,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:51" (1/1) ... [2021-12-06 20:46:51,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:51" (1/1) ... [2021-12-06 20:46:51,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:51" (1/1) ... [2021-12-06 20:46:51,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:51" (1/1) ... [2021-12-06 20:46:51,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:51" (1/1) ... [2021-12-06 20:46:51,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:51" (1/1) ... [2021-12-06 20:46:51,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:51" (1/1) ... [2021-12-06 20:46:51,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:46:51,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:46:51,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:46:51,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:46:51,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:51" (1/1) ... [2021-12-06 20:46:51,800 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:46:51,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:46:51,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:46:51,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:46:51,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:46:51,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 20:46:51,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 20:46:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-06 20:46:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:46:51,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:46:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-06 20:46:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 20:46:51,899 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:46:51,900 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:46:51,984 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:46:51,988 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:46:51,989 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 20:46:51,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:46:51 BoogieIcfgContainer [2021-12-06 20:46:51,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:46:51,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:46:51,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:46:51,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:46:51,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:46:51" (1/3) ... [2021-12-06 20:46:51,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385aac78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:46:51, skipping insertion in model container [2021-12-06 20:46:51,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:51" (2/3) ... [2021-12-06 20:46:51,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385aac78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:46:51, skipping insertion in model container [2021-12-06 20:46:51,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:46:51" (3/3) ... [2021-12-06 20:46:51,996 INFO L111 eAbstractionObserver]: Analyzing ICFG interpolation.c.p+cfa-reducer.c [2021-12-06 20:46:52,000 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:46:52,000 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 20:46:52,037 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:46:52,042 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 [2021-12-06 20:46:52,042 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 20:46:52,052 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:46:52,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 20:46:52,056 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:46:52,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:46:52,057 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:46:52,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:46:52,061 INFO L85 PathProgramCache]: Analyzing trace with hash 83921358, now seen corresponding path program 1 times [2021-12-06 20:46:52,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:46:52,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636809323] [2021-12-06 20:46:52,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:46:52,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:46:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:52,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:46:52,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:46:52,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636809323] [2021-12-06 20:46:52,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636809323] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:46:52,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:46:52,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:46:52,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313799725] [2021-12-06 20:46:52,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:46:52,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:46:52,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:46:52,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:46:52,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:46:52,249 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:46:52,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:46:52,310 INFO L93 Difference]: Finished difference Result 51 states and 61 transitions. [2021-12-06 20:46:52,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 20:46:52,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-06 20:46:52,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:46:52,318 INFO L225 Difference]: With dead ends: 51 [2021-12-06 20:46:52,318 INFO L226 Difference]: Without dead ends: 27 [2021-12-06 20:46:52,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 20:46:52,323 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 39 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:46:52,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 85 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:46:52,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-12-06 20:46:52,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 16. [2021-12-06 20:46:52,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 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) [2021-12-06 20:46:52,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-12-06 20:46:52,347 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 12 [2021-12-06 20:46:52,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:46:52,347 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-12-06 20:46:52,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:46:52,348 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-12-06 20:46:52,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 20:46:52,348 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:46:52,348 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:46:52,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 20:46:52,348 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:46:52,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:46:52,349 INFO L85 PathProgramCache]: Analyzing trace with hash 100932019, now seen corresponding path program 1 times [2021-12-06 20:46:52,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:46:52,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641530278] [2021-12-06 20:46:52,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:46:52,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:46:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:52,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:46:52,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:46:52,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641530278] [2021-12-06 20:46:52,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641530278] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:46:52,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:46:52,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:46:52,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404915478] [2021-12-06 20:46:52,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:46:52,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:46:52,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:46:52,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:46:52,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:46:52,389 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:46:52,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:46:52,399 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2021-12-06 20:46:52,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:46:52,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-06 20:46:52,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:46:52,400 INFO L225 Difference]: With dead ends: 34 [2021-12-06 20:46:52,400 INFO L226 Difference]: Without dead ends: 26 [2021-12-06 20:46:52,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:46:52,401 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 10 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:46:52,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 33 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:46:52,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-12-06 20:46:52,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 17. [2021-12-06 20:46:52,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 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) [2021-12-06 20:46:52,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2021-12-06 20:46:52,405 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 12 [2021-12-06 20:46:52,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:46:52,405 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-12-06 20:46:52,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:46:52,406 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2021-12-06 20:46:52,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 20:46:52,406 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:46:52,406 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:46:52,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 20:46:52,406 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:46:52,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:46:52,407 INFO L85 PathProgramCache]: Analyzing trace with hash 10142420, now seen corresponding path program 1 times [2021-12-06 20:46:52,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:46:52,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470236121] [2021-12-06 20:46:52,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:46:52,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:46:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:46:52,424 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:46:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:46:52,450 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:46:52,450 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 20:46:52,451 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 20:46:52,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 20:46:52,455 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-06 20:46:52,458 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 20:46:52,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 08:46:52 BoogieIcfgContainer [2021-12-06 20:46:52,479 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 20:46:52,479 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 20:46:52,480 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 20:46:52,480 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 20:46:52,480 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:46:51" (3/4) ... [2021-12-06 20:46:52,482 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 20:46:52,482 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 20:46:52,483 INFO L158 Benchmark]: Toolchain (without parser) took 913.66ms. Allocated memory is still 123.7MB. Free memory was 102.2MB in the beginning and 80.6MB in the end (delta: 21.6MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2021-12-06 20:46:52,483 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory is still 50.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:46:52,483 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.44ms. Allocated memory is still 123.7MB. Free memory was 102.2MB in the beginning and 91.5MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 20:46:52,484 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.45ms. Allocated memory is still 123.7MB. Free memory was 91.5MB in the beginning and 89.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:46:52,484 INFO L158 Benchmark]: Boogie Preprocessor took 18.19ms. Allocated memory is still 123.7MB. Free memory was 89.6MB in the beginning and 88.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:46:52,484 INFO L158 Benchmark]: RCFGBuilder took 196.82ms. Allocated memory is still 123.7MB. Free memory was 88.3MB in the beginning and 78.1MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 20:46:52,485 INFO L158 Benchmark]: TraceAbstraction took 487.67ms. Allocated memory is still 123.7MB. Free memory was 77.6MB in the beginning and 81.2MB in the end (delta: -3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:46:52,485 INFO L158 Benchmark]: Witness Printer took 2.72ms. Allocated memory is still 123.7MB. Free memory was 81.2MB in the beginning and 80.6MB in the end (delta: 610.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:46:52,487 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory is still 50.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 176.44ms. Allocated memory is still 123.7MB. Free memory was 102.2MB in the beginning and 91.5MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.45ms. Allocated memory is still 123.7MB. Free memory was 91.5MB in the beginning and 89.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.19ms. Allocated memory is still 123.7MB. Free memory was 89.6MB in the beginning and 88.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 196.82ms. Allocated memory is still 123.7MB. Free memory was 88.3MB in the beginning and 78.1MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 487.67ms. Allocated memory is still 123.7MB. Free memory was 77.6MB in the beginning and 81.2MB in the end (delta: -3.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.72ms. Allocated memory is still 123.7MB. Free memory was 81.2MB in the beginning and 80.6MB in the end (delta: 610.9kB). 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 - UnprovableResult [Line: 51]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 33, overapproximation of someBinaryDOUBLEComparisonOperation at line 38, overapproximation of to_real at line 17, overapproximation of someBinaryArithmeticFLOAToperation at line 36. Possible FailurePath: [L1] int __return_main; VAL [__return_main=0] [L14] int main__i; [L15] float main__z; [L16] float main__t; [L17] float main__min[5] = { 5, 10, 12, 30, 150 }; [L18] float main__max[5] = { 10, 12, 30, 150, 300 }; [L19] main__t = __VERIFIER_nondet_float() [L20] int main____CPAchecker_TMP_0; [L21] EXPR main__min[0] VAL [__return_main=0, main__max={5:0}, main__min={4:0}, main__min[0]=49] [L21] COND TRUE main__t >= (main__min[0]) [L23] EXPR main__max[4UL] VAL [__return_main=0, main__max={5:0}, main__max[4UL]=51, main__min={4:0}] [L23] COND TRUE main__t <= (main__max[4UL]) [L25] main____CPAchecker_TMP_0 = 1 VAL [__return_main=0, main____CPAchecker_TMP_0=1, main__max={5:0}, main__min={4:0}] [L27] COND TRUE main____CPAchecker_TMP_0 != 0 [L29] main__i = 0 VAL [__return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__min={4:0}] [L31] COND TRUE main__i < 5UL [L33] EXPR main__max[main__i] VAL [__return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__max[main__i]=50, main__min={4:0}] [L33] COND TRUE main__t <= (main__max[main__i]) [L36] EXPR main__min[main__i] [L36] EXPR main__max[main__i] [L36] EXPR main__min[main__i] [L36] main__z = (main__t - (main__min[main__i])) / ((main__max[main__i]) - (main__min[main__i])) [L37] int main____CPAchecker_TMP_1; VAL [__return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__min={4:0}] [L38] COND FALSE !(main__z >= 0.0) VAL [__return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__min={4:0}] [L63] main____CPAchecker_TMP_1 = 0 VAL [__return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={4:0}] [L45] int __tmp_1; [L46] __tmp_1 = main____CPAchecker_TMP_1 [L47] int __VERIFIER_assert__cond; [L48] __VERIFIER_assert__cond = __tmp_1 VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={4:0}] [L49] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={4:0}] [L51] reach_error() VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 3, 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, 49 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 118 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 76 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 42 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2021-12-06 20:46:52,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/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_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa --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 198a885d453136e0f485e10bae010eb2ed68236b2d57919bf162df9bdad27ee6 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:46:54,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:46:54,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:46:54,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:46:54,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:46:54,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:46:54,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:46:54,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:46:54,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:46:54,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:46:54,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:46:54,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:46:54,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:46:54,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:46:54,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:46:54,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:46:54,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:46:54,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:46:54,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:46:54,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:46:54,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:46:54,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:46:54,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:46:54,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:46:54,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:46:54,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:46:54,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:46:54,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:46:54,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:46:54,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:46:54,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:46:54,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:46:54,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:46:54,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:46:54,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:46:54,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:46:54,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:46:54,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:46:54,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:46:54,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:46:54,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:46:54,162 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-06 20:46:54,182 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:46:54,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:46:54,182 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:46:54,182 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:46:54,183 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:46:54,183 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:46:54,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:46:54,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:46:54,183 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:46:54,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:46:54,184 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 20:46:54,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 20:46:54,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:46:54,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:46:54,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:46:54,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:46:54,185 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 20:46:54,185 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 20:46:54,185 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 20:46:54,185 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 20:46:54,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:46:54,185 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:46:54,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:46:54,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:46:54,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:46:54,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:46:54,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:46:54,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:46:54,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:46:54,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:46:54,186 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 20:46:54,186 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 20:46:54,187 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:46:54,187 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:46:54,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:46:54,187 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:46:54,187 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 20:46:54,187 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_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 198a885d453136e0f485e10bae010eb2ed68236b2d57919bf162df9bdad27ee6 [2021-12-06 20:46:54,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:46:54,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:46:54,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:46:54,436 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:46:54,437 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:46:54,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c [2021-12-06 20:46:54,484 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/data/ff0b8c2ca/22acfc32d71b44188b2ee0ed941b5bdd/FLAGdbee63a81 [2021-12-06 20:46:54,895 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:46:54,895 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c [2021-12-06 20:46:54,900 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/data/ff0b8c2ca/22acfc32d71b44188b2ee0ed941b5bdd/FLAGdbee63a81 [2021-12-06 20:46:54,909 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/data/ff0b8c2ca/22acfc32d71b44188b2ee0ed941b5bdd [2021-12-06 20:46:54,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:46:54,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:46:54,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:46:54,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:46:54,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:46:54,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:46:54" (1/1) ... [2021-12-06 20:46:54,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34ace446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:54, skipping insertion in model container [2021-12-06 20:46:54,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:46:54" (1/1) ... [2021-12-06 20:46:54,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:46:54,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:46:55,037 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_a339aee3-0f50-4f71-80dd-7d52ec7465f1/sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c[1306,1319] [2021-12-06 20:46:55,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:46:55,055 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:46:55,079 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_a339aee3-0f50-4f71-80dd-7d52ec7465f1/sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c[1306,1319] [2021-12-06 20:46:55,081 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:46:55,093 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:46:55,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:55 WrapperNode [2021-12-06 20:46:55,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:46:55,094 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:46:55,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:46:55,094 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:46:55,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:55" (1/1) ... [2021-12-06 20:46:55,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:55" (1/1) ... [2021-12-06 20:46:55,124 INFO L137 Inliner]: procedures = 19, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 100 [2021-12-06 20:46:55,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:46:55,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:46:55,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:46:55,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:46:55,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:55" (1/1) ... [2021-12-06 20:46:55,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:55" (1/1) ... [2021-12-06 20:46:55,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:55" (1/1) ... [2021-12-06 20:46:55,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:55" (1/1) ... [2021-12-06 20:46:55,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:55" (1/1) ... [2021-12-06 20:46:55,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:55" (1/1) ... [2021-12-06 20:46:55,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:55" (1/1) ... [2021-12-06 20:46:55,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:46:55,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:46:55,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:46:55,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:46:55,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:55" (1/1) ... [2021-12-06 20:46:55,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:46:55,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:46:55,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:46:55,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:46:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:46:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-12-06 20:46:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 20:46:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 20:46:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-06 20:46:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:46:55,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:46:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 20:46:55,256 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:46:55,257 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:46:56,272 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:46:56,278 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:46:56,278 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 20:46:56,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:46:56 BoogieIcfgContainer [2021-12-06 20:46:56,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:46:56,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:46:56,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:46:56,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:46:56,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:46:54" (1/3) ... [2021-12-06 20:46:56,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e77f143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:46:56, skipping insertion in model container [2021-12-06 20:46:56,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:46:55" (2/3) ... [2021-12-06 20:46:56,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e77f143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:46:56, skipping insertion in model container [2021-12-06 20:46:56,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:46:56" (3/3) ... [2021-12-06 20:46:56,289 INFO L111 eAbstractionObserver]: Analyzing ICFG interpolation.c.p+cfa-reducer.c [2021-12-06 20:46:56,294 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:46:56,294 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 20:46:56,333 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:46:56,339 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 [2021-12-06 20:46:56,339 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 20:46:56,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:46:56,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 20:46:56,354 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:46:56,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:46:56,355 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:46:56,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:46:56,359 INFO L85 PathProgramCache]: Analyzing trace with hash 83921358, now seen corresponding path program 1 times [2021-12-06 20:46:56,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:46:56,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255186460] [2021-12-06 20:46:56,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:46:56,369 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:46:56,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:46:56,371 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:46:56,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 20:46:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:56,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:46:56,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:46:56,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:46:56,744 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:46:56,745 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:46:56,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255186460] [2021-12-06 20:46:56,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1255186460] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:46:56,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:46:56,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:46:56,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765982566] [2021-12-06 20:46:56,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:46:56,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:46:56,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:46:56,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:46:56,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:46:56,772 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:46:58,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:46:58,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:46:58,946 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2021-12-06 20:46:58,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:46:58,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-06 20:46:58,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:46:58,955 INFO L225 Difference]: With dead ends: 33 [2021-12-06 20:46:58,955 INFO L226 Difference]: Without dead ends: 19 [2021-12-06 20:46:58,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:46:58,961 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:46:58,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 41 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 20:46:58,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-06 20:46:58,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2021-12-06 20:46:58,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 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) [2021-12-06 20:46:58,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2021-12-06 20:46:58,985 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 12 [2021-12-06 20:46:58,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:46:58,985 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 22 transitions. [2021-12-06 20:46:58,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:46:58,986 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2021-12-06 20:46:58,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 20:46:58,986 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:46:58,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:46:59,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 20:46:59,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:46:59,189 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:46:59,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:46:59,191 INFO L85 PathProgramCache]: Analyzing trace with hash -6868241, now seen corresponding path program 1 times [2021-12-06 20:46:59,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:46:59,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662537013] [2021-12-06 20:46:59,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:46:59,195 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:46:59,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:46:59,196 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:46:59,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 20:46:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:59,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 20:46:59,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:46:59,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:46:59,523 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:46:59,524 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:46:59,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662537013] [2021-12-06 20:46:59,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662537013] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:46:59,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:46:59,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:46:59,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950386277] [2021-12-06 20:46:59,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:46:59,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:46:59,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:46:59,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:46:59,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:46:59,526 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:47:01,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:47:01,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:47:01,697 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2021-12-06 20:47:01,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:47:01,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-06 20:47:01,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:47:01,699 INFO L225 Difference]: With dead ends: 21 [2021-12-06 20:47:01,699 INFO L226 Difference]: Without dead ends: 17 [2021-12-06 20:47:01,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:47:01,702 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 1 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:47:01,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 54 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-12-06 20:47:01,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-12-06 20:47:01,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-12-06 20:47:01,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 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) [2021-12-06 20:47:01,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2021-12-06 20:47:01,708 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 13 [2021-12-06 20:47:01,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:47:01,708 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-12-06 20:47:01,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:47:01,709 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2021-12-06 20:47:01,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 20:47:01,709 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:47:01,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:47:01,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 20:47:01,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:47:01,911 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:47:01,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:47:01,912 INFO L85 PathProgramCache]: Analyzing trace with hash 10142420, now seen corresponding path program 1 times [2021-12-06 20:47:01,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:47:01,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777986380] [2021-12-06 20:47:01,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:47:01,913 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:47:01,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:47:01,915 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:47:01,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 20:47:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:47:02,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-06 20:47:02,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:47:04,059 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 20:47:04,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 178 treesize of output 86 [2021-12-06 20:47:48,253 WARN L227 SmtUtils]: Spent 12.30s on a formula simplification. DAG size of input: 39 DAG size of output: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 20:48:40,206 WARN L838 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|ULTIMATE.start_main_~main__t~0#1| (_ FloatingPoint 8 24)) (v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1))) (.cse1 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven |ULTIMATE.start_main_~main__t~0#1| .cse0) (fp.sub roundNearestTiesToEven .cse1 .cse0))) (_ +zero 11 53))) (= .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32))) (fp.geq |ULTIMATE.start_main_~main__t~0#1| .cse0) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32)) .cse1)))) is different from false [2021-12-06 20:48:42,232 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|ULTIMATE.start_main_~main__t~0#1| (_ FloatingPoint 8 24)) (v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1))) (.cse1 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven |ULTIMATE.start_main_~main__t~0#1| .cse0) (fp.sub roundNearestTiesToEven .cse1 .cse0))) (_ +zero 11 53))) (= .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32))) (fp.geq |ULTIMATE.start_main_~main__t~0#1| .cse0) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32)) .cse1)))) is different from true [2021-12-06 20:51:08,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:51:08,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:51:08,141 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:51:08,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777986380] [2021-12-06 20:51:08,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777986380] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:51:08,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:51:08,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 20:51:08,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111670921] [2021-12-06 20:51:08,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:51:08,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:51:08,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:51:08,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:51:08,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=58, Unknown=5, NotChecked=16, Total=110 [2021-12-06 20:51:08,143 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:51:31,334 WARN L227 SmtUtils]: Spent 15.96s on a formula simplification that was a NOOP. DAG size: 74 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 20:51:33,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:51:33,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:51:33,707 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2021-12-06 20:51:33,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:51:33,712 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-06 20:51:33,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:51:33,713 INFO L225 Difference]: With dead ends: 30 [2021-12-06 20:51:33,713 INFO L226 Difference]: Without dead ends: 25 [2021-12-06 20:51:33,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 57.9s TimeCoverageRelationStatistics Valid=38, Invalid=70, Unknown=6, NotChecked=18, Total=132 [2021-12-06 20:51:33,715 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 17 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:51:33,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 26 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 59 Invalid, 1 Unknown, 39 Unchecked, 3.5s Time] [2021-12-06 20:51:33,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-12-06 20:51:33,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2021-12-06 20:51:33,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 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) [2021-12-06 20:51:33,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-12-06 20:51:33,723 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 13 [2021-12-06 20:51:33,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:51:33,724 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-12-06 20:51:33,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:51:33,724 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2021-12-06 20:51:33,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 20:51:33,725 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:51:33,725 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:51:33,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-06 20:51:33,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:51:33,927 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:51:33,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:51:33,929 INFO L85 PathProgramCache]: Analyzing trace with hash 2097179417, now seen corresponding path program 1 times [2021-12-06 20:51:33,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:51:33,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801094537] [2021-12-06 20:51:33,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:51:33,932 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:51:33,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:51:33,935 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:51:33,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 20:51:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:51:34,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:51:34,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:51:34,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:51:34,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:51:34,262 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:51:34,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801094537] [2021-12-06 20:51:34,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801094537] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:51:34,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:51:34,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:51:34,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601894895] [2021-12-06 20:51:34,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:51:34,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:51:34,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:51:34,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:51:34,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:51:34,264 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:51:34,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:51:34,295 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2021-12-06 20:51:34,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:51:34,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-06 20:51:34,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:51:34,297 INFO L225 Difference]: With dead ends: 32 [2021-12-06 20:51:34,297 INFO L226 Difference]: Without dead ends: 19 [2021-12-06 20:51:34,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:51:34,298 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:51:34,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:51:34,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-06 20:51:34,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-06 20:51:34,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 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) [2021-12-06 20:51:34,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2021-12-06 20:51:34,303 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 13 [2021-12-06 20:51:34,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:51:34,303 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-12-06 20:51:34,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:51:34,303 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2021-12-06 20:51:34,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-06 20:51:34,304 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:51:34,304 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:51:34,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-06 20:51:34,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:51:34,506 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:51:34,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:51:34,508 INFO L85 PathProgramCache]: Analyzing trace with hash -202431920, now seen corresponding path program 1 times [2021-12-06 20:51:34,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:51:34,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050211664] [2021-12-06 20:51:34,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:51:34,510 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:51:34,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:51:34,512 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:51:34,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-06 20:51:35,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:51:35,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-06 20:51:35,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:51:38,113 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 20:51:38,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 178 treesize of output 86 [2021-12-06 20:52:30,667 WARN L227 SmtUtils]: Spent 15.72s on a formula simplification. DAG size of input: 39 DAG size of output: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 20:53:08,866 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~main__t~0#1| (_ FloatingPoint 8 24)) (v_arrayElimCell_6 (_ BitVec 32)) (v_arrayElimCell_4 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_6) ((_ extract 30 23) v_arrayElimCell_6) ((_ extract 22 0) v_arrayElimCell_6))) (.cse0 (fp ((_ extract 31 31) v_arrayElimCell_4) ((_ extract 30 23) v_arrayElimCell_4) ((_ extract 22 0) v_arrayElimCell_4)))) (and (= |c_ULTIMATE.start_main_~main__z~0#1| (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |ULTIMATE.start_main_~main__t~0#1| .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0))) (= .cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32))) (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32)) .cse0) (fp.leq |ULTIMATE.start_main_~main__t~0#1| .cse1) (fp.geq |ULTIMATE.start_main_~main__t~0#1| .cse0)))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~main__z~0#1|) (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-12-06 20:54:22,720 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__t~0#1| (_ FloatingPoint 8 24)) (v_arrayElimCell_6 (_ BitVec 32)) (v_arrayElimCell_4 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_6) ((_ extract 30 23) v_arrayElimCell_6) ((_ extract 22 0) v_arrayElimCell_6))) (.cse2 (fp ((_ extract 31 31) v_arrayElimCell_4) ((_ extract 30 23) v_arrayElimCell_4) ((_ extract 22 0) v_arrayElimCell_4)))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven |ULTIMATE.start_main_~main__t~0#1| .cse2) (fp.sub roundNearestTiesToEven .cse1 .cse2))))) (and (fp.geq .cse0 (_ +zero 11 53)) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32)) .cse1) (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32)) .cse2) (fp.leq |ULTIMATE.start_main_~main__t~0#1| .cse1) (fp.geq |ULTIMATE.start_main_~main__t~0#1| .cse2))))) is different from false [2021-12-06 20:54:24,752 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__t~0#1| (_ FloatingPoint 8 24)) (v_arrayElimCell_6 (_ BitVec 32)) (v_arrayElimCell_4 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_6) ((_ extract 30 23) v_arrayElimCell_6) ((_ extract 22 0) v_arrayElimCell_6))) (.cse2 (fp ((_ extract 31 31) v_arrayElimCell_4) ((_ extract 30 23) v_arrayElimCell_4) ((_ extract 22 0) v_arrayElimCell_4)))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven |ULTIMATE.start_main_~main__t~0#1| .cse2) (fp.sub roundNearestTiesToEven .cse1 .cse2))))) (and (fp.geq .cse0 (_ +zero 11 53)) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32)) .cse1) (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32)) .cse2) (fp.leq |ULTIMATE.start_main_~main__t~0#1| .cse1) (fp.geq |ULTIMATE.start_main_~main__t~0#1| .cse2))))) is different from true [2021-12-06 20:57:03,076 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__t~0#1| (_ FloatingPoint 8 24)) (v_arrayElimCell_6 (_ BitVec 32)) (v_arrayElimCell_4 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_6) ((_ extract 30 23) v_arrayElimCell_6) ((_ extract 22 0) v_arrayElimCell_6))) (.cse2 (fp ((_ extract 31 31) v_arrayElimCell_4) ((_ extract 30 23) v_arrayElimCell_4) ((_ extract 22 0) v_arrayElimCell_4)))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven |ULTIMATE.start_main_~main__t~0#1| .cse2) (fp.sub roundNearestTiesToEven .cse1 .cse2))))) (and (fp.geq .cse0 (_ +zero 11 53)) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32)) .cse1) (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32)) .cse2) (fp.leq |ULTIMATE.start_main_~main__t~0#1| .cse1))))) is different from false [2021-12-06 20:57:05,111 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__t~0#1| (_ FloatingPoint 8 24)) (v_arrayElimCell_6 (_ BitVec 32)) (v_arrayElimCell_4 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_6) ((_ extract 30 23) v_arrayElimCell_6) ((_ extract 22 0) v_arrayElimCell_6))) (.cse2 (fp ((_ extract 31 31) v_arrayElimCell_4) ((_ extract 30 23) v_arrayElimCell_4) ((_ extract 22 0) v_arrayElimCell_4)))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven |ULTIMATE.start_main_~main__t~0#1| .cse2) (fp.sub roundNearestTiesToEven .cse1 .cse2))))) (and (fp.geq .cse0 (_ +zero 11 53)) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32)) .cse1) (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32)) .cse2) (fp.leq |ULTIMATE.start_main_~main__t~0#1| .cse1))))) is different from true [2021-12-06 20:58:19,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:58:19,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:58:19,091 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:58:19,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050211664] [2021-12-06 20:58:19,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050211664] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:58:19,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:58:19,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:58:19,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700087060] [2021-12-06 20:58:19,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:58:19,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 20:58:19,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:58:19,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 20:58:19,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=60, Unknown=7, NotChecked=54, Total=156 [2021-12-06 20:58:19,094 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:58:22,481 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0#1.base|)) (.cse5 (let ((.cse7 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0#1.base|) |c_ULTIMATE.start_main_~#main__min~0#1.offset|))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))))) (and (exists ((|ULTIMATE.start_main_~main__t~0#1| (_ FloatingPoint 8 24)) (v_arrayElimCell_6 (_ BitVec 32)) (v_arrayElimCell_4 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_6) ((_ extract 30 23) v_arrayElimCell_6) ((_ extract 22 0) v_arrayElimCell_6))) (.cse0 (fp ((_ extract 31 31) v_arrayElimCell_4) ((_ extract 30 23) v_arrayElimCell_4) ((_ extract 22 0) v_arrayElimCell_4)))) (and (= |c_ULTIMATE.start_main_~main__z~0#1| (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |ULTIMATE.start_main_~main__t~0#1| .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0))) (= .cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32))) (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32)) .cse0) (fp.leq |ULTIMATE.start_main_~main__t~0#1| .cse1) (fp.geq |ULTIMATE.start_main_~main__t~0#1| .cse0)))) (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| (let ((.cse2 (select .cse3 (bvadd (bvmul |c_ULTIMATE.start_main_~main__i~0#1| (_ bv4 32)) |c_ULTIMATE.start_main_~#main__max~0#1.offset|)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))) (= (let ((.cse4 (select .cse3 (bvadd (_ bv16 32) |c_ULTIMATE.start_main_~#main__max~0#1.offset|)))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv300 32))) (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32)) .cse5) (= |c_ULTIMATE.start_main_~main__i~0#1| (_ bv0 32)) (= |c_ULTIMATE.start_main_~#main__max~0#1.offset| (_ bv0 32)) (= (let ((.cse6 (select .cse3 |c_ULTIMATE.start_main_~#main__max~0#1.offset|))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32))) (= |c_ULTIMATE.start_main_~#main__min~0#1.offset| (_ bv0 32)) (= c_currentRoundingMode roundNearestTiesToEven) (fp.geq |c_ULTIMATE.start_main_~main__t~0#1| .cse5))) is different from false [2021-12-06 20:58:24,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:58:25,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:58:25,175 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2021-12-06 20:58:25,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 20:58:25,181 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-12-06 20:58:25,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:58:25,182 INFO L225 Difference]: With dead ends: 25 [2021-12-06 20:58:25,182 INFO L226 Difference]: Without dead ends: 17 [2021-12-06 20:58:25,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 47.4s TimeCoverageRelationStatistics Valid=37, Invalid=61, Unknown=8, NotChecked=76, Total=182 [2021-12-06 20:58:25,184 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 29 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:58:25,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 33 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 1 Unknown, 82 Unchecked, 4.0s Time] [2021-12-06 20:58:25,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-12-06 20:58:25,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-12-06 20:58:25,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 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) [2021-12-06 20:58:25,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-12-06 20:58:25,189 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 14 [2021-12-06 20:58:25,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:58:25,189 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-12-06 20:58:25,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:58:25,190 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-12-06 20:58:25,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-06 20:58:25,191 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:58:25,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:58:25,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-06 20:58:25,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:58:25,392 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:58:25,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:58:25,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1048715671, now seen corresponding path program 1 times [2021-12-06 20:58:25,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:58:25,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [391355382] [2021-12-06 20:58:25,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:58:25,398 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:58:25,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:58:25,401 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:58:25,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-06 20:58:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:58:25,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 20:58:25,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:58:25,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:58:25,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:58:25,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:58:25,958 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:58:25,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [391355382] [2021-12-06 20:58:25,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [391355382] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:58:25,958 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:58:25,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-12-06 20:58:25,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802812342] [2021-12-06 20:58:25,959 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:58:25,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:58:25,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:58:25,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:58:25,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:58:25,960 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2021-12-06 20:58:27,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:58:30,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:58:32,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:58:34,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:58:36,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:58:37,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:58:37,055 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2021-12-06 20:58:37,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:58:37,108 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 14 [2021-12-06 20:58:37,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:58:37,108 INFO L225 Difference]: With dead ends: 54 [2021-12-06 20:58:37,108 INFO L226 Difference]: Without dead ends: 46 [2021-12-06 20:58:37,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:58:37,110 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 59 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:58:37,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 51 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 3 Unknown, 0 Unchecked, 11.0s Time] [2021-12-06 20:58:37,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-12-06 20:58:37,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 22. [2021-12-06 20:58:37,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:58:37,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2021-12-06 20:58:37,118 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 14 [2021-12-06 20:58:37,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:58:37,118 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2021-12-06 20:58:37,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2021-12-06 20:58:37,119 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2021-12-06 20:58:37,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-06 20:58:37,119 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:58:37,120 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:58:37,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-06 20:58:37,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:58:37,322 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:58:37,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:58:37,323 INFO L85 PathProgramCache]: Analyzing trace with hash -673335440, now seen corresponding path program 1 times [2021-12-06 20:58:37,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:58:37,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728713271] [2021-12-06 20:58:37,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:58:37,325 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:58:37,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:58:37,327 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:58:37,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a339aee3-0f50-4f71-80dd-7d52ec7465f1/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-06 20:58:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:58:37,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-06 20:58:37,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:58:41,445 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 20:58:41,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 202 treesize of output 98 [2021-12-06 20:59:21,228 WARN L227 SmtUtils]: Spent 11.71s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 20:59:56,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:59:56,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 21:00:05,976 WARN L838 $PredicateComparison]: unable to prove that (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse2 (bvmul |c_ULTIMATE.start_main_~main__i~0#1| (_ bv4 32)))) (let ((.cse0 (let ((.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0#1.base|) (bvadd .cse2 |c_ULTIMATE.start_main_~#main__min~0#1.offset|)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~main__t~0#1| .cse0) (fp.sub c_currentRoundingMode (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0#1.base|) (bvadd .cse2 |c_ULTIMATE.start_main_~#main__max~0#1.offset|)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) .cse0))))) (_ +zero 11 53)) is different from false [2021-12-06 21:00:08,031 WARN L860 $PredicateComparison]: unable to prove that (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse2 (bvmul |c_ULTIMATE.start_main_~main__i~0#1| (_ bv4 32)))) (let ((.cse0 (let ((.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0#1.base|) (bvadd .cse2 |c_ULTIMATE.start_main_~#main__min~0#1.offset|)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~main__t~0#1| .cse0) (fp.sub c_currentRoundingMode (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0#1.base|) (bvadd .cse2 |c_ULTIMATE.start_main_~#main__max~0#1.offset|)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) .cse0))))) (_ +zero 11 53)) is different from true [2021-12-06 21:00:18,382 WARN L838 $PredicateComparison]: unable to prove that (or (not (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| |c_ULTIMATE.start_main_#t~mem7#1|)) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse2 (bvmul |c_ULTIMATE.start_main_~main__i~0#1| (_ bv4 32)))) (let ((.cse0 (let ((.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0#1.base|) (bvadd .cse2 |c_ULTIMATE.start_main_~#main__min~0#1.offset|)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~main__t~0#1| .cse0) (fp.sub c_currentRoundingMode (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0#1.base|) (bvadd .cse2 |c_ULTIMATE.start_main_~#main__max~0#1.offset|)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) .cse0))))) (_ +zero 11 53))) is different from false [2021-12-06 21:00:20,441 WARN L860 $PredicateComparison]: unable to prove that (or (not (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| |c_ULTIMATE.start_main_#t~mem7#1|)) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse2 (bvmul |c_ULTIMATE.start_main_~main__i~0#1| (_ bv4 32)))) (let ((.cse0 (let ((.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0#1.base|) (bvadd .cse2 |c_ULTIMATE.start_main_~#main__min~0#1.offset|)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~main__t~0#1| .cse0) (fp.sub c_currentRoundingMode (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0#1.base|) (bvadd .cse2 |c_ULTIMATE.start_main_~#main__max~0#1.offset|)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) .cse0))))) (_ +zero 11 53))) is different from true [2021-12-06 21:00:32,349 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse3 (bvmul |c_ULTIMATE.start_main_~main__i~0#1| (_ bv4 32)))) (let ((.cse0 (let ((.cse4 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0#1.base|) (bvadd .cse3 |c_ULTIMATE.start_main_~#main__max~0#1.offset|)))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))))) (or (not (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| .cse0)) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0#1.base|) (bvadd .cse3 |c_ULTIMATE.start_main_~#main__min~0#1.offset|)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~main__t~0#1| .cse1) (fp.sub c_currentRoundingMode .cse0 .cse1)))) (_ +zero 11 53))))) is different from true [2021-12-06 21:00:45,248 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (bvmul |c_ULTIMATE.start_main_~main__i~0#1| (_ bv4 32)))) (let ((.cse1 (let ((.cse4 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0#1.base|) (bvadd .cse3 (_ bv4 32) |c_ULTIMATE.start_main_~#main__max~0#1.offset|)))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))))) (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0#1.base|) (bvadd .cse3 (_ bv4 32) |c_ULTIMATE.start_main_~#main__min~0#1.offset|)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~main__t~0#1| .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0)))) (_ +zero 11 53)) (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| |c_ULTIMATE.start_main_#t~mem7#1|) (not (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| .cse1))))) is different from false [2021-12-06 21:00:47,307 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse3 (bvmul |c_ULTIMATE.start_main_~main__i~0#1| (_ bv4 32)))) (let ((.cse1 (let ((.cse4 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0#1.base|) (bvadd .cse3 (_ bv4 32) |c_ULTIMATE.start_main_~#main__max~0#1.offset|)))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))))) (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0#1.base|) (bvadd .cse3 (_ bv4 32) |c_ULTIMATE.start_main_~#main__min~0#1.offset|)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~main__t~0#1| .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0)))) (_ +zero 11 53)) (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| |c_ULTIMATE.start_main_#t~mem7#1|) (not (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| .cse1))))) is different from true [2021-12-06 21:01:01,914 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0#1.base|)) (.cse2 (bvmul |c_ULTIMATE.start_main_~main__i~0#1| (_ bv4 32)))) (let ((.cse4 (let ((.cse6 (select .cse1 (bvadd .cse2 (_ bv4 32) |c_ULTIMATE.start_main_~#main__max~0#1.offset|)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6))))) (or (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| (let ((.cse0 (select .cse1 (bvadd .cse2 |c_ULTIMATE.start_main_~#main__max~0#1.offset|)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse3 (let ((.cse5 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0#1.base|) (bvadd .cse2 (_ bv4 32) |c_ULTIMATE.start_main_~#main__min~0#1.offset|)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~main__t~0#1| .cse3) (fp.sub c_currentRoundingMode .cse4 .cse3)))) (_ +zero 11 53)) (not (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| .cse4))))) is different from false [2021-12-06 21:01:03,974 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0#1.base|)) (.cse2 (bvmul |c_ULTIMATE.start_main_~main__i~0#1| (_ bv4 32)))) (let ((.cse4 (let ((.cse6 (select .cse1 (bvadd .cse2 (_ bv4 32) |c_ULTIMATE.start_main_~#main__max~0#1.offset|)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6))))) (or (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| (let ((.cse0 (select .cse1 (bvadd .cse2 |c_ULTIMATE.start_main_~#main__max~0#1.offset|)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse3 (let ((.cse5 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0#1.base|) (bvadd .cse2 (_ bv4 32) |c_ULTIMATE.start_main_~#main__min~0#1.offset|)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~main__t~0#1| .cse3) (fp.sub c_currentRoundingMode .cse4 .cse3)))) (_ +zero 11 53)) (not (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| .cse4))))) is different from true [2021-12-06 21:01:13,343 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0#1.base|))) (let ((.cse1 (let ((.cse5 (select .cse4 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~#main__max~0#1.offset|)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0#1.base|) (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~#main__min~0#1.offset|)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~main__t~0#1| .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0)))) (_ +zero 11 53)) (not (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| .cse1)) (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| (let ((.cse3 (select .cse4 |c_ULTIMATE.start_main_~#main__max~0#1.offset|))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))))) is different from false [2021-12-06 21:01:15,406 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0#1.base|))) (let ((.cse1 (let ((.cse5 (select .cse4 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~#main__max~0#1.offset|)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0#1.base|) (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~#main__min~0#1.offset|)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~main__t~0#1| .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0)))) (_ +zero 11 53)) (not (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| .cse1)) (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| (let ((.cse3 (select .cse4 |c_ULTIMATE.start_main_~#main__max~0#1.offset|))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))))) is different from true [2021-12-06 21:01:29,236 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0#1.base|))) (let ((.cse1 (let ((.cse5 (select .cse4 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~#main__max~0#1.offset|)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0#1.base|) (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~#main__min~0#1.offset|)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~main__t~0#1| .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0)))) (_ +zero 11 53)) (not (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| |c_ULTIMATE.start_main_#t~mem6#1|)) (not (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| .cse1)) (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| (let ((.cse3 (select .cse4 |c_ULTIMATE.start_main_~#main__max~0#1.offset|))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))))) is different from false [2021-12-06 21:01:31,298 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0#1.base|))) (let ((.cse1 (let ((.cse5 (select .cse4 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~#main__max~0#1.offset|)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0#1.base|) (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~#main__min~0#1.offset|)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~main__t~0#1| .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0)))) (_ +zero 11 53)) (not (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| |c_ULTIMATE.start_main_#t~mem6#1|)) (not (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| .cse1)) (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| (let ((.cse3 (select .cse4 |c_ULTIMATE.start_main_~#main__max~0#1.offset|))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))))) is different from true [2021-12-06 21:01:55,645 WARN L860 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_#t~mem5#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__t~0#1| (_ FloatingPoint 8 24))) (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__max~0#1.base|))) (let ((.cse1 (let ((.cse6 (select .cse4 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~#main__max~0#1.offset|)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6))))) (or (fp.geq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#main__min~0#1.base|) (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~#main__min~0#1.offset|)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |ULTIMATE.start_main_~main__t~0#1| .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0)))) (_ +zero 11 53)) (not (fp.leq |ULTIMATE.start_main_~main__t~0#1| (let ((.cse3 (select .cse4 (bvadd (_ bv16 32) |c_ULTIMATE.start_main_~#main__max~0#1.offset|)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (not (fp.leq |ULTIMATE.start_main_~main__t~0#1| .cse1)) (fp.leq |ULTIMATE.start_main_~main__t~0#1| (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~#main__max~0#1.offset|))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5)))) (not (fp.geq |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_#t~mem5#1|)))))) is different from true [2021-12-06 21:02:01,675 WARN L227 SmtUtils]: Spent 6.00s on a formula simplification. DAG size of input: 8 DAG size of output: 1 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-12-06 21:02:01,675 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-06 21:02:01,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 230 treesize of output 110